CN107421151A - Air conditioner and its coolant leakage detection method and device - Google Patents
Air conditioner and its coolant leakage detection method and device Download PDFInfo
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- CN107421151A CN107421151A CN201710624411.1A CN201710624411A CN107421151A CN 107421151 A CN107421151 A CN 107421151A CN 201710624411 A CN201710624411 A CN 201710624411A CN 107421151 A CN107421151 A CN 107421151A
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- air conditioner
- temperature
- preset
- refrigerant
- outdoor environment
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/22—Preventing, detecting or repairing leaks of refrigeration fluids
- F25B2500/221—Preventing leaks from developing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/22—Preventing, detecting or repairing leaks of refrigeration fluids
- F25B2500/222—Detecting refrigerant leaks
Abstract
The invention discloses a kind of air conditioner and its coolant leakage detection method and device, wherein, this method comprises the following steps：When air conditioner in a chiller mode or dehumidification mode start shooting when, whether the compressor for detecting air conditioner starts；After compressor start, the delivery temperature of the indoor EAT of air conditioner, indoor heat exchanger temperature, outdoor environment temperature and the compressor is obtained, and obtains the continuous working period after compressor is currently up；Judge whether the refrigerant of air conditioner leaks according to indoor EAT, indoor heat exchanger temperature, outdoor environment temperature, delivery temperature and continuous working period.The method according to the invention, can timely and accurately detect whether the refrigerant of air conditioner leaks, and to take corresponding measure in time when refrigerant leaks, so as to ensure air conditioner normal operation, and can improve the service life of compressor.
Description
Technical field
The present invention relates to air-conditioning technical field, the coolant leakage detection method of more particularly to a kind of air conditioner, a kind of non-face
When property computer-readable recording medium, a kind of coolant leakage detection means of air conditioner and a kind of air conditioner.
Background technology
With the increasingly raising of people's living standard, air conditioner has become necessary household electrical appliance in people's life.It is existing
The refrigeration system of some air conditioners includes compressor, outdoor heat exchanger, throttling arrangement, indoor heat exchanger and is pre-charged with certain
The refrigerant of amount.Air conditioner, can normal operation in cooling mode when refrigerant does not leak.In the use process of air conditioner
In, phenomena such as being vibrated when air conditioner installation is lack of standardization or the later stage is run occurs unavoidably, these phenomenons may all cause
The coolant leakage of air conditioner, so that the refrigeration of air conditioner is deteriorated.
When the coolant leakage of air conditioner is serious, compressor is often burnt.Especially for the air-conditioning of T3 operating modes exploitation
Device, because use environment temperature is higher, once the refrigerant in air conditioner leaks, the delivery temperature of compressor will quickly on
Rise.If can not in time shut down and report failure, compressor is easy for damaging.However, the refrigerant detection of current air conditioner
Method, typically easily occurs the phenomenon reported by mistake or failed to report under the use condition of high humility.
The content of the invention
It is contemplated that at least solves one of technical problem in above-mentioned technology to a certain extent.Therefore, the present invention
One purpose is the coolant leakage detection method for proposing a kind of air conditioner, can timely and accurately detect the refrigerant of air conditioner
Whether leak, to take corresponding measure in time when refrigerant leaks, so as to ensure air conditioner normal operation,
And the service life of compressor can be improved.
Second object of the present invention is to propose a kind of non-transitorycomputer readable storage medium.
Third object of the present invention is the coolant leakage detection means for proposing a kind of air conditioner.
Fourth object of the present invention is to propose a kind of air conditioner.
To reach above-mentioned purpose, first aspect present invention embodiment proposes a kind of coolant leakage detection side of air conditioner
Method, this method comprise the following steps：When the air conditioner in a chiller mode or dehumidification mode start shooting when, detect the air conditioner
Whether compressor starts；After the compressor start, indoor EAT, the indoor heat exchanger temperature of the air conditioner are obtained
The delivery temperature of degree, outdoor environment temperature and the compressor, and when obtaining the continuous service after the compressor is currently up
Between；According to the indoor EAT, the indoor heat exchanger temperature, the outdoor environment temperature, the delivery temperature and institute
Stating the continuous working period judges whether the refrigerant of the air conditioner leaks.
The coolant leakage detection method of air conditioner according to embodiments of the present invention, when air conditioner in a chiller mode or dehumidifying mould
, can be according to the indoor EAT of air conditioner, indoor heat exchanger temperature, room after the compressor start of air conditioner when formula is started shooting
Continuous working period after the delivery temperature and compressor of external environment temperature and compressor are currently up judges the cold of air conditioner
Whether matchmaker leaks.Thereby, it is possible to timely and accurately detect whether the refrigerant of air conditioner leaks, to be sent out in refrigerant
Corresponding measure is taken in time when giving birth to leakage, so as to ensure air conditioner normal operation, and can improve the use longevity of compressor
Life.
In addition, can also be had according to the coolant leakage detection method of the air conditioner of the above embodiment of the present invention proposition as follows
Additional technical characteristic：
Specifically, according to the indoor EAT, the indoor heat exchanger temperature, the outdoor environment temperature, described
Delivery temperature and the continuous working period judge whether the refrigerant of the air conditioner leaks, including：Judge the outdoor
Whether environment temperature is less than or equal to the first preset temperature；If the outdoor environment temperature is less than or equal to the described first default temperature
Whether degree, the then refrigerant for judging the air conditioner according to the outdoor environment temperature and the delivery temperature leak；If
The outdoor environment temperature is more than first preset temperature, then according to the indoor EAT, the indoor heat exchanger temperature
Degree and the continuous working period judge whether the refrigerant of the air conditioner leaks.
Specifically, when the outdoor environment temperature is less than or equal to first preset temperature, wherein, judge the exhaust
Whether temperature is more than or equal to the outdoor environment temperature and the second preset temperature sum of preset multiple；If the delivery temperature
More than or equal to the outdoor environment temperature and the second preset temperature sum of preset multiple, then judge that the refrigerant of the air conditioner is sent out
Raw leakage；If the delivery temperature is less than the outdoor environment temperature and the second preset temperature sum of preset multiple, sentence
The refrigerant of the disconnected air conditioner does not leak.
Specifically, when the outdoor environment temperature is more than first preset temperature, wherein, judge the continuous service
Whether the time is more than or equal to the first preset time；If the continuous working period is more than or equal to first preset time,
Determine whether the indoor EAT is less than or equal to the first preset difference value with the indoor heat exchanger temperature difference；Such as
Indoor EAT described in fruit is less than or equal to first preset difference value with the indoor heat exchanger temperature difference, then described in judgement
The refrigerant of air conditioner leaks；If the indoor EAT is more than described first with the indoor heat exchanger temperature difference
Preset difference value, then judge that the refrigerant of the air conditioner does not leak.
Further, when the refrigerant for judging the air conditioner leaks, the number also leaked refrigerant is carried out
Add up to obtain number accumulated value, and the number accumulated value is judged, wherein, preset when the number accumulated value is less than
During number, the preset time of compressor shutdown second is controlled；When the number accumulated value is more than or equal to preset times, control
The air conditioner shutdown, be concurrently out of order prompt message.
To reach above-mentioned purpose, second aspect of the present invention embodiment proposes a kind of non-transitory computer-readable storage medium
Matter, computer program is stored thereon with, wherein, the program realizes that first aspect present invention embodiment proposes when being executed by processor
Air conditioner coolant leakage detection method.
Non-transitorycomputer readable storage medium according to embodiments of the present invention, by the computer journey for performing its storage
Sequence, can timely and accurately detect whether the refrigerant of air conditioner leaks, to be taken in time when refrigerant leaks
Corresponding measure, so as to ensure air conditioner normal operation, and the service life of compressor can be improved.
To reach above-mentioned purpose, third aspect present invention embodiment proposes a kind of coolant leakage detection dress of air conditioner
Put, the device includes：Monitoring modular, the monitoring modular is used to work as the air conditioner in a chiller mode or dehumidification mode is started shooting
When, whether the compressor for detecting the air conditioner starts；Temperature securing component, the temperature securing component are used in the compression
After machine starts, indoor EAT, indoor heat exchanger temperature, outdoor environment temperature and the compressor of the air conditioner are obtained
Delivery temperature；Time-obtaining module, the time-obtaining module are used to obtain the lasting fortune after the compressor is currently up
The row time；Main control module, the main control module are used for according to the indoor EAT, the indoor heat exchanger temperature, described
Outdoor environment temperature, the delivery temperature and the continuous working period judge whether the refrigerant of the air conditioner leaks.
The coolant leakage detection means of air conditioner according to embodiments of the present invention, when the air conditioner in a chiller mode or removes
When wet model is started shooting, after the compressor start of monitoring modular detection air conditioner, main control module can obtain according to temperature securing component
The indoor EAT of the air conditioner got, indoor heat exchanger temperature, the delivery temperature of outdoor environment temperature and compressor and
Continuous working period after the compressor that time-obtaining module is got is currently up judges whether the refrigerant of air conditioner is let out
Leakage.Thereby, it is possible to timely and accurately detect whether the refrigerant of air conditioner leaks, so as to timely when refrigerant leaks
Corresponding measure is taken, so as to ensure air conditioner normal operation, and the service life of compressor can be improved.
In addition, can also be had according to the coolant leakage detection means of the air conditioner of the above embodiment of the present invention proposition as follows
Additional technical characteristic：
Specifically, the main control module is used to judge whether the outdoor environment temperature is less than or equal to the first preset temperature,
And when the outdoor environment temperature is less than or equal to first preset temperature, according to the outdoor environment temperature and the exhaust
Temperature judges whether the refrigerant of the air conditioner leaks, and is more than the described first default temperature in the outdoor environment temperature
When spending, the air conditioner is judged according to the indoor EAT, the indoor heat exchanger temperature and the continuous working period
Refrigerant whether leak.
Specifically, the main control module is used for when the outdoor environment temperature is less than or equal to first preset temperature,
Judge the delivery temperature whether be more than or equal to preset multiple the outdoor environment temperature and the second preset temperature sum, and
When the delivery temperature is more than or equal to the outdoor environment temperature and the second preset temperature sum of preset multiple, the sky is judged
Adjust the refrigerant of device to leak, and be less than the outdoor environment temperature of preset multiple and second in the delivery temperature and preset
During temperature sum, judge that the refrigerant of the air conditioner does not leak.
Specifically, the main control module is used for when the outdoor environment temperature is more than first preset temperature, judges
Whether the continuous working period is more than or equal to the first preset time, and is more than or equal to described first in the continuous working period
During preset time, determine whether the indoor EAT is less than or equal to first with the indoor heat exchanger temperature difference
Preset difference value, and it is default less than or equal to described first poor in the indoor EAT and the indoor heat exchanger temperature difference
During value, judge that the refrigerant of the air conditioner leaks, and the indoor EAT and the indoor heat exchanger temperature it
When difference is more than first preset difference value, judge that the refrigerant of the air conditioner does not leak.
Further, the main control module is also let out when the refrigerant for judging the air conditioner leaks to refrigerant
The number of leakage is added up to obtain number accumulated value, and the number accumulated value is judged, wherein, when the number tires out
It is value added when being less than preset times, the preset time of compressor shutdown second described in the master control module controls；When the number adds up
When value is more than or equal to preset times, air conditioner described in the master control module controls shuts down, and controls the air conditioner to send failure
Prompt message.
Corresponding above-described embodiment, the invention also provides a kind of air conditioner.
The air conditioner of the embodiment of the present invention, include the coolant leakage detection dress of the air conditioner of the above embodiment of the present invention proposition
Put, its specific embodiment can refer to above-described embodiment, to avoid redundancy, will not be repeated here.
Air conditioner according to embodiments of the present invention, it can timely and accurately detect whether its refrigerant leaks, so as to
Corresponding measure is taken in time when refrigerant leaks, and so as to ensure its normal operation, and can improve making for compressor
Use the life-span.
Brief description of the drawings
Fig. 1 is the flow chart according to the coolant leakage detection method of the air conditioner of the embodiment of the present invention；
Fig. 2 is the flow chart according to the coolant leakage detection method of the air conditioner of one embodiment of the invention；
Fig. 3 is the block diagram according to the coolant leakage detection means of the air conditioner of the embodiment of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
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, it is intended to for explaining the present invention, and is not considered as limiting the invention.
The air conditioner of the embodiment of the present invention and its coolant leakage detection method and device described below in conjunction with the accompanying drawings.
Fig. 1 is the flow chart according to the coolant leakage detection method of the air conditioner of the embodiment of the present invention.
As shown in figure 1, the coolant leakage detection method of the air conditioner of the embodiment of the present invention, comprises the following steps：
S1, when air conditioner in a chiller mode or dehumidification mode start shooting when, whether the compressor for detecting air conditioner starts.
S2, after compressor start, obtain the indoor EAT of air conditioner, indoor heat exchanger temperature, outdoor environment temperature
The delivery temperature of degree and compressor, and obtain the continuous working period after compressor is currently up.
Specifically, can be by setting temperature sensor to enter wind-warm syndrome to obtain the interior of air conditioner respectively respectively in relevant position
Spend the delivery temperature T5 of T1, indoor heat exchanger temperature T2, outdoor environment temperature T4 and compressor.
S3, during according to indoor EAT, indoor heat exchanger temperature, outdoor environment temperature, delivery temperature and continuous service
Between judge whether the refrigerant of air conditioner leaks.
Specifically, it can determine whether outdoor environment temperature T4 is less than or equal to the first preset temperature x.If outdoor environment temperature
T4 is less than or equal to the first preset temperature x, then can judge that the refrigerant of air conditioner is according to outdoor environment temperature T4 and delivery temperature T5
It is no to leak；If outdoor environment temperature T4 is more than the first preset temperature x, can be changed according to indoor EAT T1, interior
Hot device temperature T2 and continuous working period t judge whether the refrigerant of air conditioner leaks.Wherein, the first preset temperature x value
It can preset, and be stored, to be called when whether being leaked in the refrigerant for judging air conditioner.That is, when sky
When adjusting the outdoor environment temperature of device relatively low, it can judge whether its refrigerant leaks according to outdoor environment temperature and delivery temperature；
, can be according to indoor EAT, indoor heat exchanger temperature and continuous working period when the outdoor environment temperature of air conditioner is higher
Judge whether its refrigerant leaks.
Specifically, when outdoor environment temperature T4 is less than or equal to the first preset temperature x, it can determine whether delivery temperature T5 is big
In the outdoor environment temperature b*T4 equal to preset multiple and the second preset temperature a sums, you can judge whether delivery temperature T5 is big
In equal to a+b*T4.If delivery temperature T5 is more than or equal to the outdoor environment temperature b*T4 and the second preset temperature a of preset multiple
Sum, i.e. T5 >=a+b*T4, then it can determine whether that the refrigerant of air conditioner leaks；If delivery temperature T5 is less than the room of preset multiple
External environment temperature b*T4 and the second preset temperature a sums, i.e. T5 ＜ a+b*T4, then can determine whether that the refrigerant of air conditioner is not let out
Leakage.Wherein, the second preset temperature a and preset multiple b value can be preset, and be stored, to judge air conditioner
Whether refrigerant calls when leaking.
When outdoor environment temperature T4 is more than the first preset temperature x, it can determine whether continuous working period t is more than or equal to the
One preset time.If continuous working period t is more than or equal to the first preset time, indoor EAT T1 can be determined whether
And whether indoor heat exchanger temperature T2 difference is less than or equal to the first preset difference value y.If indoor EAT T1 and indoor heat exchange
Device temperature T2 difference is less than or equal to the first preset difference value y, then can determine whether that the refrigerant of air conditioner leaks；If wind-warm syndrome is entered in interior
Degree T1 and indoor heat exchanger temperature T2 difference is more than the first preset difference value y, then can determine whether that the refrigerant of air conditioner is not let out
Leakage.Wherein, the first preset time and the first preset difference value y value can be preset, and be stored, to judge air conditioner
Refrigerant call when whether leaking.
Further, when the refrigerant for judging air conditioner leaks, the number that refrigerant leaks can also be tired out
Number accumulated value N is obtained, and number accumulated value N is judged, wherein, when number accumulated value N is less than preset times,
The controllable preset time of compressor shutdown second；When number accumulated value N is more than or equal to preset times, air conditioner can control to close
Machine, be concurrently out of order prompt message.That is, when the refrigerant in air conditioner start leakage when, can by compressor shutdown, so as to
The delivery temperature of compressor is reduced, waits reset itself again after the second preset time；When the refrigerant in air conditioner is frequently let out
During leakage, control compressor shutdown and report failure.Wherein, preset times can be preset with the second preset time, and be stored,
Called during to make to judge.Air conditioner can be sent out by showing Reflector on a display screen or sending the modes such as abnormal sound
Be out of order prompt message.
In one embodiment of the invention, as shown in Fig. 2 the coolant leakage detection method of air conditioner may include following step
Suddenly：
S201, air conditioner, which is powered, starts shooting.
S202, whether the operational mode for judging current air conditioner is refrigeration mode or dehumidification mode.If it is, perform step
Rapid S203；If it is not, then terminate present procedure.
S203, the times N that refrigerant leaks are set to 0.In one embodiment of the invention, can be by air conditioner
Portion's counter counts to the times N that refrigerant leaks., can be by the meter of the internal counter of air conditioner in step S203
Numerical value zero setting.
S204, judges whether compressor starts success.If it is, perform step S205；If it is not, then perform step
S204。
S205, continuous working period t, indoor EAT T1, indoor heat exchanger temperature after this startup of acquisition compressor
T2, outdoor environment temperature T4, compressor exhaust temperature T5.Wherein, can by set respectively in relevant position temperature sensor with
The exhaust of the indoor EAT T1 of acquisition air conditioner, indoor heat exchanger temperature T2, outdoor environment temperature T4 and compressor respectively
Temperature T5.
S206, determine whether T4≤x.If it is, perform step S207；If it is not, then perform step S208.Its
In, x can be preset, and be stored, to make to be called when whether the refrigerant of disconnected air conditioner leaks.
S207, determine whether T5 >=a+b*T4.If it is, perform step S211；If it is not, then perform step
S210.Wherein, a and b can be preset, and be stored, to be called when judging whether the refrigerant of air conditioner leaks.
S208, determine whether t >=t1.If it is, perform step S209；If it is not, then continue executing with step S208.
Wherein, t1 can be preset, and be stored, to be called when making to judge whether the refrigerant of air conditioner leaks.
S209, determine whether T1-T2≤y.If it is, perform step S211；If it is not, then perform step S210.
Wherein, y can be preset, and be stored, to be called when judging whether the refrigerant of air conditioner leaks.
S210, judge that the refrigerant of air conditioner does not leak.
S211, judge that the refrigerant of air conditioner leaks.
S212, N add 1.
S213, determine whether N≤n.If it is, perform step S214；If it is not, then perform step S215.Wherein,
N can be preset, and be stored, and be called during to make to judge.
Restart after S214, control compressor shutdown t2.Then step S204 is performed.Wherein, t2 is according to compressor
Performance is set in advance.After compressor shutdown t2, own temperature can be reduced, to ensure that compressor will not be burned out.
S215, control air conditioner shutdown, be concurrently out of order prompt message.Wherein, air conditioner can be by showing on a display screen
Show Reflector or send the modes such as abnormal sound and send fault cues information.
In one particular embodiment of the present invention, can be according to indoor EAT T1, indoor heat exchanger temperature T2, outdoor
Environment temperature T4, delivery temperature T5 and continuous working period t judge whether the refrigerant of air conditioner leaks, and specifically, can sentence
Whether disconnected outdoor environment temperature T4 is less than or equal to 30 DEG C.If outdoor environment temperature T4 is less than or equal to 30 DEG C, can be according to outdoor
Environment temperature T4 and delivery temperature T5 judges whether the refrigerant of air conditioner leaks；If outdoor environment temperature T4 is more than 30
DEG C, then can be judged according to indoor EAT T1, indoor heat exchanger temperature T2 and continuous working period t air conditioner refrigerant whether
Leak.
When outdoor environment temperature T4 is less than or equal to 30 DEG C, it can determine whether delivery temperature T5 is more than or equal to 60+2.5*T4.
If T5 >=60+2.5*T4, it can determine whether that the refrigerant of air conditioner leaks；If T5 ＜ 60+2.5*T4, can determine whether air-conditioning
The refrigerant of device does not leak.
When outdoor environment temperature T4 is more than 30 DEG C, it can determine whether continuous working period t is more than or equal to 5min.If hold
Continuous run time t is more than or equal to 5min, then can determine whether indoor EAT T1 and indoor heat exchanger temperature T2 difference is
It is no to be less than or equal to 3 DEG C.If indoor EAT T1 and indoor heat exchanger temperature T2 difference are less than or equal to 3 DEG C, sky can determine whether
The refrigerant of device is adjusted to leak；If indoor EAT T1 and the indoor heat exchanger temperature T2 difference are more than 3 DEG C, can sentence
The refrigerant of disconnected air conditioner does not leak.
When the refrigerant for judging air conditioner leaks, the number that refrigerant leaks can also be added up secondary to obtain
Number accumulated value N, and number accumulated value N is judged, wherein, when number accumulated value N is less than 3, it can control compressor shutdown
3min；When number accumulated value N is more than or equal to 3, air conditioner shutdown is can control, be concurrently out of order prompt message.Wherein, air conditioner
Fault cues information can be sent by showing Reflector on a display screen or sending the modes such as abnormal sound.
The coolant leakage detection method of air conditioner according to embodiments of the present invention, when air conditioner in a chiller mode or dehumidifying mould
, can be according to the indoor EAT of air conditioner, indoor heat exchanger temperature, room after the compressor start of air conditioner when formula is started shooting
Continuous working period after the delivery temperature and compressor of external environment temperature and compressor are currently up judges the cold of air conditioner
Whether matchmaker leaks.Thereby, it is possible to timely and accurately detect whether the refrigerant of air conditioner leaks, to be sent out in refrigerant
Corresponding measure is taken in time when giving birth to leakage, so as to ensure air conditioner normal operation, and can improve the use longevity of compressor
Life.
Corresponding above-described embodiment, the present invention also propose a kind of non-transitorycomputer readable storage medium.
The non-transitorycomputer readable storage medium of the embodiment of the present invention, is stored with computer program, wherein when the journey
When sequence is executed by processor, the coolant leakage detection method for the air conditioner that the above embodiment of the present invention proposes can be achieved.
Non-transitorycomputer readable storage medium according to embodiments of the present invention, by the computer journey for performing its storage
Sequence, can timely and accurately detect whether the refrigerant of air conditioner leaks, to be taken in time when refrigerant leaks
Corresponding measure, so as to ensure air conditioner normal operation, and the service life of compressor can be improved.
Corresponding above-described embodiment, the present invention also propose a kind of coolant leakage detection means of air conditioner.
As shown in figure 3, the coolant leakage detection means of the air conditioner of the embodiment of the present invention, including monitoring modular 10, temperature
Securing component 20, time-obtaining module 30 and main control module 40.
Wherein, monitoring modular 10 can be used for when air conditioner in a chiller mode or dehumidification mode start shooting when, detect air conditioner
Whether compressor starts；Temperature securing component 20 can be used for after compressor start, obtain indoor EAT, the room of air conditioner
The delivery temperature of interior heat exchange temperature, outdoor environment temperature and compressor；Time-obtaining module 30 can be used for acquisition compressor to work as
Continuous working period after preceding startup；Main control module 40 can be used for according to indoor EAT, indoor heat exchanger temperature, outdoor ring
Border temperature, delivery temperature and continuous working period judge whether the refrigerant of air conditioner leaks.
Specifically, temperature securing component 20 may include that EAT sensor, heat exchange temperature sensor, environment temperature pass
Sensor and exhaust gas temperature sensor, and the interior that can obtain air conditioner respectively by the temperature sensor set in relevant position is entered
Air temperature T1, indoor heat exchanger temperature T2, the delivery temperature T5 of outdoor environment temperature T4 and compressor.Specifically, main control module
40 can determine whether the outdoor environment temperature T4 that temperature securing component 20 obtains is less than or equal to the first preset temperature x.Main control module
40 when the outdoor environment temperature T4 for judging that temperature securing component 20 obtains is less than or equal to the first preset temperature x, can be according to temperature
The outdoor environment temperature T4 and delivery temperature T5 that securing component 20 obtains judge whether the refrigerant of air conditioner leaks；Master control mould
Block 40 can obtain when the outdoor environment temperature T4 for judging that temperature securing component 20 obtains is more than the first preset temperature x according to temperature
When taking indoor EAT T1, the indoor heat exchanger temperature T2 that component 20 obtains and the continuous service that time-obtaining module 30 obtains
Between t judge whether the refrigerant of air conditioner leaks.Wherein, the first preset temperature x value can be preset, and be stored,
To be called when whether being leaked in the refrigerant for judging air conditioner.That is, when the outdoor environment temperature of air conditioner is relatively low
When, main control module 40 can judge cold in air conditioner according to the outdoor environment temperature and delivery temperature of the acquisition of temperature securing component 20
Whether matchmaker leaks；When the outdoor environment temperature of air conditioner is higher, main control module 40 can obtain according to temperature securing component 20
The continuous working period that indoor EAT, the indoor heat exchanger temperature and time acquisition module 30 taken obtains is judged in air conditioner
Refrigerant whether leak.
Specifically, main control module 40 is less than or equal to first in the outdoor environment temperature T4 for judging the acquisition of temperature securing component 20
During preset temperature x, can determine whether temperature securing component 20 obtain delivery temperature T5 whether be more than or equal to preset multiple temperature obtain
Take the outdoor environment temperature b*T4 and the second preset temperature a sums that component 20 obtains, you can judge that temperature securing component 20 obtains
Delivery temperature T5 whether be more than or equal to a+b*T4.Main control module 40 is judging the delivery temperature T5 of the acquisition of temperature securing component 20
The outdoor environment temperature b*T4 that is obtained more than or equal to the temperature securing component 20 of preset multiple and during the second preset temperature a sums,
That is T5 >=a+b*T4, it can determine whether that the refrigerant of air conditioner leaks；Main control module 40 is judging what temperature securing component 20 obtained
Delivery temperature T5 be less than preset multiple temperature securing component 20 obtain outdoor environment temperature b*T4 and the second preset temperature a it
And when, i.e. T5 ＜ a+b*T4, it can determine whether that the refrigerant of air conditioner does not leak.Wherein, the second preset temperature a and preset multiple b
Value can preset, and stored, to be called when whether being leaked in the refrigerant for judging air conditioner.
Main control module 40 is more than the first preset temperature x in the outdoor environment temperature T4 for judging the acquisition of temperature securing component 20
When, it can determine whether the continuous working period t that time-obtaining module 30 obtains is more than or equal to the first preset time.Main control module 40
When the continuous working period t for judging that time-obtaining module 30 obtains is more than or equal to the first preset time, temperature can be determined whether
Whether the difference for spending the indoor EAT T1 and indoor heat exchanger temperature T2 of the acquisition of securing component 20 is default less than or equal to first poor
Value y.Difference of the main control module 40 in the indoor EAT T1 and indoor heat exchanger temperature T2 for judging the acquisition of temperature securing component 20
During less than or equal to the first preset difference value y, it can determine whether that the refrigerant of air conditioner leaks；Main control module 40 is judging temperature acquisition group
The indoor EAT T1 and indoor heat exchanger temperature T2 difference that part 20 obtains are more than the first preset difference value y, then can determine whether air-conditioning
The refrigerant of device does not leak.Wherein, the first preset time and the first preset difference value y value can be preset, and be stored,
To be called when whether being leaked in the refrigerant for judging air conditioner.
Further, main control module 40 can be also leaked refrigerant when the refrigerant for judging air conditioner leaks
Number is added up to obtain number accumulated value N, and number accumulated value N is judged, wherein, when main control module 40 judges time
When number accumulated value N is less than preset times, the preset time of compressor shutdown second can control；When main control module 40 judges that number adds up
When value N is more than preset times, air conditioner shutdown is can control, and control air conditioner to send fault cues information.That is, when sky
When refrigerant in tune device starts leakage, main control module 40 can control compressor shutdown, so as to reduce the delivery temperature of compressor, etc.
Treat after the second preset time reset itself again；When the refrigerant in air conditioner frequently leaks, the controllable sky of main control module 40
Adjust device to shut down and report failure.Wherein, the value of preset times and the second preset time can be preset, and be stored, to make
Called during judgement.Air conditioner can send failure by showing Reflector on a display screen or sending the modes such as abnormal sound
Prompt message.
In one particular embodiment of the present invention, main control module 40 can determine whether the outdoor ring that temperature securing component 20 obtains
Whether border temperature T4 is less than or equal to 30 DEG C.When outdoor environment temperature T4 is less than or equal to 30 DEG C, main control module 40 can be according to temperature
The outdoor environment temperature T4 and delivery temperature T5 that securing component 20 obtains judge whether the refrigerant of air conditioner leaks；In outdoor
Environment temperature T4 is more than 30 DEG C, and indoor EAT T1 that main control module 40 can obtain according to temperature securing component 20, interior changes
The continuous working period t that hot device temperature T2 and time-obtaining module 30 obtain judges whether the refrigerant of air conditioner leaks.
When outdoor environment temperature T4 is less than or equal to 30 DEG C, main control module 40 can determine whether delivery temperature T5 is big
In equal to 60+2.5*T4.If T5 >=60+2.5*T4, main control module 40 can determine whether that the refrigerant of air conditioner leaks；If
T5 ＜ 60+2.5*T4, then main control module 40 can determine whether that the refrigerant of air conditioner does not leak.
When outdoor environment temperature T4 is more than 30 DEG C, main control module 40 can determine whether continuous working period t is big
In equal to 5min.When continuous working period t is more than or equal to 5min, main control module 40 can further judge temperature securing component
Whether the 20 indoor EAT T1 obtained and indoor heat exchanger temperature T2 difference is less than or equal to 3 DEG C.EAT T1 indoors
And when indoor heat exchanger temperature T2 difference is less than or equal to 3 DEG C, main control module 40 can determine whether that the refrigerant of air conditioner is let out
Leakage；When EAT T1 and the indoor heat exchanger temperature T2 difference are more than 3 DEG C indoors, main control module 40 can determine whether
The refrigerant of air conditioner does not leak.
When the refrigerant of air conditioner leaks, main control module 40 number that refrigerant leaks can also be added up with
Number accumulated value N is obtained, and number accumulated value N is judged, when number accumulated value N is less than 3, main control module 40 is controllable
Compressor shutdown 3min；When number accumulated value N is more than or equal to 3, main control module 40 can control air conditioner to shut down, and control air-conditioning
Device sends fault cues information.Wherein, air conditioner can be by showing Reflector or sending abnormal sound on a display screen
Fault cues information is sent etc. mode.
The coolant leakage detection means of air conditioner according to embodiments of the present invention, when the air conditioner in a chiller mode or removes
When wet model is started shooting, after the compressor start of monitoring modular detection air conditioner, main control module can obtain according to temperature securing component
The indoor EAT of the air conditioner got, indoor heat exchanger temperature, the delivery temperature of outdoor environment temperature and compressor and
Continuous working period after the compressor that time-obtaining module is got is currently up judges whether the refrigerant of air conditioner is let out
Leakage.Thereby, it is possible to timely and accurately detect whether the refrigerant of air conditioner leaks, so as to timely when refrigerant leaks
Corresponding measure is taken, so as to ensure air conditioner normal operation, and the service life of compressor can be improved.
Corresponding above-described embodiment, the present invention also propose a kind of air conditioner.
The air conditioner of the embodiment of the present invention, include the coolant leakage detection dress of the air conditioner of the above embodiment of the present invention proposition
Put, its specific embodiment can refer to above-described embodiment, to avoid redundancy, will not be repeated here.
Air conditioner according to embodiments of the present invention, it can timely and accurately detect whether its refrigerant leaks, so as to
Corresponding measure is taken in time when refrigerant leaks, and so as to ensure its normal operation, and can improve making for compressor
Use the life-span.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
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 must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (12)
1. the coolant leakage detection method of a kind of air conditioner, it is characterised in that comprise the following steps：
When the air conditioner in a chiller mode or dehumidification mode start shooting when, whether the compressor for detecting the air conditioner starts；
After the compressor start, the indoor EAT of the air conditioner, indoor heat exchanger temperature, outdoor environment temperature are obtained
The delivery temperature of degree and the compressor, and obtain the continuous working period after the compressor is currently up；
According to the indoor EAT, the indoor heat exchanger temperature, the outdoor environment temperature, the delivery temperature and institute
Stating the continuous working period judges whether the refrigerant of the air conditioner leaks.
2. the coolant leakage detection method of air conditioner according to claim 1, it is characterised in that according to the indoor air intake
Temperature, the indoor heat exchanger temperature, the outdoor environment temperature, the delivery temperature and the continuous working period judge institute
Whether the refrigerant for stating air conditioner leaks, including：
Judge whether the outdoor environment temperature is less than or equal to the first preset temperature；
If the outdoor environment temperature is less than or equal to first preset temperature, according to the outdoor environment temperature and described
Delivery temperature judges whether the refrigerant of the air conditioner leaks；
If the outdoor environment temperature is more than first preset temperature, according to the indoor EAT, the interior
Heat exchange temperature and the continuous working period judge whether the refrigerant of the air conditioner leaks.
3. the coolant leakage detection method of air conditioner according to claim 2, it is characterised in that when the outdoor environment temperature
When degree is less than or equal to first preset temperature, wherein,
Judge whether the delivery temperature is more than or equal to the outdoor environment temperature and the second preset temperature sum of preset multiple；
If the delivery temperature is more than or equal to the outdoor environment temperature and the second preset temperature sum of preset multiple, sentence
The refrigerant of the disconnected air conditioner leaks；
If the delivery temperature is less than the outdoor environment temperature and the second preset temperature sum of preset multiple, institute is judged
The refrigerant for stating air conditioner does not leak.
4. the coolant leakage detection method of air conditioner according to claim 2, it is characterised in that when the outdoor environment temperature
When degree is more than first preset temperature, wherein,
Judge whether the continuous working period is more than or equal to the first preset time；
If the continuous working period is more than or equal to first preset time, the indoor EAT is determined whether
Whether it is less than or equal to the first preset difference value with the indoor heat exchanger temperature difference；
If the indoor EAT is less than or equal to first preset difference value with the indoor heat exchanger temperature difference, sentence
The refrigerant of the disconnected air conditioner leaks；
If the indoor EAT is more than first preset difference value with the indoor heat exchanger temperature difference, institute is judged
The refrigerant for stating air conditioner does not leak.
5. the coolant leakage detection method of the air conditioner according to any one of claim 1-4, it is characterised in that work as judgement
When the refrigerant of the air conditioner leaks, also the number that refrigerant leaks is added up to obtain number accumulated value, and
The number accumulated value is judged, wherein,
When the number accumulated value is less than preset times, the preset time of compressor shutdown second is controlled；
When the number accumulated value is more than or equal to preset times, the air conditioner is controlled to shut down, be concurrently out of order prompt message.
6. a kind of non-transitorycomputer readable storage medium, is stored thereon with computer program, it is characterised in that the program quilt
The coolant leakage detection method of the air conditioner as described in any in claim 1-5 is realized during computing device.
A kind of 7. coolant leakage detection means of air conditioner, it is characterised in that including：
Monitoring modular, the monitoring modular is used for when the air conditioner is in a chiller mode or when dehumidification mode is started shooting, described in detection
Whether the compressor of air conditioner starts；
Temperature securing component, the temperature securing component are used for after the compressor start, obtain the interior of the air conditioner
EAT, indoor heat exchanger temperature, the delivery temperature of outdoor environment temperature and the compressor；
Time-obtaining module, the time-obtaining module are used to obtain the continuous working period after the compressor is currently up；
Main control module, the main control module are used for according to the indoor EAT, the indoor heat exchanger temperature, the outdoor
Environment temperature, the delivery temperature and the continuous working period judge whether the refrigerant of the air conditioner leaks.
8. the coolant leakage detection means of air conditioner according to claim 7, it is characterised in that the main control module is used for
Judge whether the outdoor environment temperature is less than or equal to the first preset temperature, and in the outdoor environment temperature less than or equal to described
During the first preset temperature, whether the refrigerant for judging the air conditioner according to the outdoor environment temperature and the delivery temperature occurs
Leakage, and when the outdoor environment temperature is more than first preset temperature, according to the indoor EAT, the room
Interior heat exchange temperature and the continuous working period judge whether the refrigerant of the air conditioner leaks.
9. the coolant leakage detection means of air conditioner according to claim 8, it is characterised in that the main control module is used for
When the outdoor environment temperature is less than or equal to first preset temperature, it is default to judge whether the delivery temperature is more than or equal to
The outdoor environment temperature of multiple and the second preset temperature sum, and it is more than or equal to the institute of preset multiple in the delivery temperature
When stating outdoor environment temperature and the second preset temperature sum, judge that the refrigerant of the air conditioner leaks, and in the row
When temperature degree is less than the outdoor environment temperature and the second preset temperature sum of preset multiple, the refrigerant of the air conditioner is judged
Do not leak.
10. the coolant leakage detection means of air conditioner according to claim 8, it is characterised in that the main control module is used
In when the outdoor environment temperature is more than first preset temperature, judging whether the continuous working period is more than or equal to the
One preset time, and when being more than or equal to first preset time in the continuous working period, determine whether the interior
Whether EAT is less than or equal to the first preset difference value with the indoor heat exchanger temperature difference, and enters wind-warm syndrome in the interior
When degree is less than or equal to first preset difference value with the indoor heat exchanger temperature difference, judge that the refrigerant of the air conditioner occurs
Leakage, and when the indoor EAT and the indoor heat exchanger temperature difference are more than first preset difference value, judge
The refrigerant of the air conditioner does not leak.
11. the coolant leakage detection means of the air conditioner according to any one of claim 7-10, it is characterised in that described
Main control module is also added up to obtain when the refrigerant for judging the air conditioner leaks to the number that refrigerant leaks
Number accumulated value, and the number accumulated value is judged, wherein,
When the number accumulated value is less than preset times, when compressor shutdown second is preset described in the master control module controls
Between；
When the number accumulated value is more than or equal to preset times, air conditioner described in the master control module controls shuts down, and controls
The air conditioner sends fault cues information.
12. a kind of air conditioner, it is characterised in that the refrigerant including the air conditioner according to any one of claim 7-11 is let out
Device for detecting leakage.
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| CN110645672A (en) * | 2019-10-14 | 2020-01-03 | 南京天加环境科技有限公司 | Refrigerant shortage protection method for variable frequency air conditioner |
| CN110940046A (en) * | 2018-09-21 | 2020-03-31 | 奥克斯空调股份有限公司 | Refrigerant leakage detection method and air conditioner |
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