CN106524418A

CN106524418A - Air conditioner refrigerant leakage detecting method and detecting system and air conditioner

Info

Publication number: CN106524418A
Application number: CN201611038081.XA
Authority: CN
Inventors: 吴加生
Original assignee: Handan Midea Air Conditioning Equipment Co Ltd
Current assignee: Handan Midea Air Conditioning Equipment Co Ltd
Priority date: 2016-11-10
Filing date: 2016-11-10
Publication date: 2017-03-22
Anticipated expiration: 2036-11-10
Also published as: CN106524418B

Abstract

The invention provides an air conditioner refrigerant leakage detecting method and a detecting system and an air conditioner. The detecting method comprises the following steps: after the air conditioner is electrified to start, and when a present operation mode is a refrigerating mode or a dehumidifying mode, a refrigerant leakage cumulative number N is recorded; when a present working state of a compressor is a starting state, a starting time length ti of a compressor, an indoor intake temperature T1 and a temperature T2 of an indoor heat exchanger are recorded; if ti reaches t1, delta T1 is equal to T1-T2 and not smaller than Al; if ti reaches t2, delta T1 is equal to T1-T2 and not smaller than A2; when delta T is equal to delta T1-delta T2 and not smaller than A3, N is added by 1 to judge if N is equal to D1; if not, the compressor is restarted after stopping by t3, and the starting state of the compressor is renewedly judged; and if so, the air conditioner is stopped, and the indoor fan displays a refrigerant leakage fault. The detecting method continuously detect if a refrigerant leaks for a long time in the compressor operation process to prolong the service life of the compressor.

Description

Detection method, detecting system and air-conditioner that air-conditioner coolant is revealed

Technical field

The present invention relates to air-conditioner technical field, the detection method revealed in particular to a kind of air-conditioner coolant, sky Adjust the detecting system and air-conditioner of device secondary refrigerant leakage.

Background technology

Air-conditioner in correlation technique, the reason such as vibration during due to installing lack of standardization or work, it will usually cause system pipes Coolant in road is slowly leaked for a long time, makes the refrigeration of air conditioning system be deteriorated, when coolant leakage is serious, the easy quilt of compressor Burn.Especially the air conditioning system in worst hot case, as use environment temperature is higher, once coolant starts leakage, compresses The delivery temperature of machine is begun to ramp up soon, if failure can not be shut down in time and be reported, the service life of compressor will reduce, very Extremely therefore can burn.Therefore, in detecting air-conditioner in time, coolant occurs leaking very necessary.

The content of the invention

In order to solve at least one above-mentioned technical problem, the embodiment of a first aspect of the present invention proposes a kind of air-conditioner The detection method of secondary refrigerant leakage.

A kind of a second aspect of the present invention embodiment, it is also proposed that the detecting system that air-conditioner coolant is revealed.

A kind of another aspect of the invention embodiment, it is also proposed that air-conditioner.

In view of this, embodiment according to the first aspect of the invention, the present invention propose a kind of air-conditioner coolant and reveal Detection method, air-conditioner includes compressor, indoor fan and indoor heat exchanger, the detection method bag that air-conditioner coolant is revealed Include：Step S102, air-conditioner are powered after start, detect the present mode of operation of air-conditioner；Step S104, judges current operation mould Whether formula is refrigeration mode or dehumidification mode；When the judged result of step S104 is to be, into step S106；Step S106, Record secondary refrigerant leakage cumulative number N, and detect the current operating state of compressor；Step S108, judges that current operating state is It is no for starting state；When the judged result of step S108 is to be, into step S110；Step S110, recording compressed machine this The operating time ti of startup, indoor inlet temperature T1, indoor heat exchanger temperature T2；Step S112, in the operating time of compressor When ti reaches the first preset duration t1, whether △ T1=T1-T2 are judged more than or equal to the first preset temperature difference A1, in compressor When operating time ti reaches the second preset duration 2, judge △ T2=T1-T2 whether more than or equal to the second preset temperature difference A2；When The judged result of step S112 is when being, into step S114；Step S114, judges △ T=, and whether | △ T1- △ T2 | are less than A3 poor equal to the 3rd preset temperature；When the judged result of step S114 is to be, into step S116；Step S116, by coolant Reveal cumulative number N and add 1, wherein, the initial value of secondary refrigerant leakage cumulative number N is 0；Step S118, judges that secondary refrigerant leakage adds up Whether times N is equal to the first preset times D1；When the judged result of step S118 is no, into step S120；Step S120, Restart after the 3rd preset duration t3 of compressor shutdown, and return to step S108；When the judged result of step S118 is to be, enter Enter step S122；Step S122, air-conditioner are shut down, and indoor fan shows secondary refrigerant leakage failure；Wherein, 1 ＜ t2.

The detection method that the air-conditioner coolant that the present invention is provided is revealed, after being powered start in air-conditioner, detects air-conditioning The present mode of operation of device, and judging that whether present mode of operation is the judged result of refrigeration mode or dehumidification mode for yes In the case of, the cumulative number N of secondary refrigerant leakage is recorded, the wherein initial value of N is 0, and detects the working condition of compressor, is being judged Compressor be whether the judged result of starting state to be when, recording compressed machine this operating time ti for starting, indoor air intake Temperature T1, indoor heat exchanger temperature T2, when the operating time ti of compressor reaches the first preset duration t1, judge △ T1= Whether T1-T2 is more than or equal to the first preset temperature difference A1, when the operating time ti of compressor reaches the second preset duration t2, sentences Whether disconnected △ T2=T1-T2 are more than or equal to the second preset temperature difference A2, when judged result is is, judge △ T=| △ T1- △ T2 | whether A3 poor less than or equal to the 3rd preset temperature, when judged result is to be, illustrate that coolant refrigeration effect is not excellent, general Secondary refrigerant leakage cumulative number N adds 1, and judges whether secondary refrigerant leakage cumulative number N is equal to the first preset times D1, if so, then says Bright secondary refrigerant leakage, control air-conditioner are shut down, and indoor fan shows secondary refrigerant leakage failure, efficiently avoid secondary refrigerant leakage compressor Delivery temperature rises the very fast service life for reducing compressor, serves definitely protection and suggesting effect, while avoiding cold Matchmaker reveals the danger of the burning and blast for causing, and is effectively improved the safety and reliability of air-conditioner operation, meanwhile, when cold Matchmaker reveal cumulative number N whether be equal to the judged result of the first preset times D1 for it is no when, the 3rd preset duration of compressor shutdown Restart after t3, and rejudge whether the current operating state of compressor is starting state, can compress in air-conditioner start Machine start and running in long-term detection coolant whether reveal, it is to avoid can only detect whether just start operation period coolant is let out The detection revealed and whether cannot reveal to coolant in air-conditioner running, further ensures the safety of air-conditioner operation, And it is effectively guaranteed the service life of compressor；By judging inlet temperature T1 and indoor heat exchange in the first preset duration t1 room When the difference and the second preset duration t2 of device temperature T2 in room between the difference of inlet temperature T1 and indoor heat exchanger temperature T2 Difference determining secondary refrigerant leakage cumulative number, i.e., by judge the temperature gap at two moment and the relation of preset temperature difference come Determine whether coolant is revealed, efficiently avoid by solely judging temperature determine coolant whether to reveal and due to temperature examine Survey has differences and affects the testing result of secondary refrigerant leakage, is effectively guaranteed the accuracy of coolant detection, susceptiveness and effectively Property, the safety and reliability of product work is further ensured, the satisfaction that user uses is improved.

In addition, the present invention provide above-described embodiment in air-conditioner coolant reveal detection method can also have it is as follows Additional technical feature：

In above-mentioned technical proposal, it is preferable that also include：When the judged result of step S112 is no, into step S124；Step S124, starts timing and is recorded as time tt, and wherein the initial value of tt is 0, while recording room when tt is initial value Interior heat exchange temperature T2, is recorded as T2 (0), the accumulated running time tl of recording compressed machine；Step S126, when adding up for compressor After run time tl reaches the 4th preset duration t4, judge indoor inlet temperature T1 whether more than or equal to the first preset temperature value B； When the judged result of step S126 is to be, return to step S124, when the judged result of step S126 is no, into step S128；Step S128, indoor heat exchanger temperature T2 when the accumulated running time tl of recording compressed machine reaches four preset durations t4, It is recorded as T2 (i)；Whether step S130, judge △ T22=T2 (i)-T2 (0) less than the 4th preset temperature difference A4；Work as step When the judged result of S130 is to be, return to step S120；When the judged result of step S130 is no, return to step S124.

In the technical scheme, by when the operating time ti of compressor reaches the first preset duration t1, judging △ T1 Whether=T1-T2 is more than or equal to the first preset temperature difference A1, when the operating time ti of compressor reaches the second preset duration t2, Judge that △ T2=T1-T2, whether more than or equal to the second preset temperature difference A2, when judged result is no, starts timing and are simultaneously recorded as The initial value of time tt, wherein tt is 0, while recording indoor heat exchanger temperature T2 when tt is initial value, is recorded as T2 (0), remembers The accumulated running time tl of record compressor, and after the accumulated running time tl of compressor reaches four preset durations t4, judge Whether indoor inlet temperature T1 is more than or equal to the first preset temperature value B, if so, illustrates temporarily there is no coolant in air-conditioner system The risk of leakage, then return reclocking and be recorded as time tt, indoor heat exchanger temperature T2 when record tt is initial value, record The accumulated running time tl of compressor, continuation detect that to system the leak case of the detection coolant of real-time, circulation enters one Step improves air-conditioner reliability of operation and safety, improves the satisfaction that user uses；If it is not, the refrigeration of explanation coolant It is undesirable, there is secondary refrigerant leakage, the 4th preset duration t4 is reached by the accumulated running time tl of recording compressed machine When indoor heat exchanger temperature T2, be recorded as T2 (i)；Judge whether △ T22=T2 (i)-T2 (0) are poor less than the 4th preset temperature A4；If the determination result is YES, restart after the 3rd preset duration t3 of compressor shutdown, and whether rejudge the state of compressor For starting state, determine whether whether coolant is revealed, caused with avoiding continuous operation from secondary refrigerant leakage do not occur in stopping process The risk that compressor burns, is effectively improved the service life of compressor, at the same ensure that air-conditioner operation safety and Reliability, improves the satisfaction that user uses；When whether △ T22=T2 (i)-T2 (0) are no less than the 4th preset temperature difference A4 It is to illustrate the temporary transient risk that there is no secondary refrigerant leakage in air-conditioner system, returns reclocking and be simultaneously recorded as time tt, record tt For initial value when indoor heat exchanger temperature T2, the accumulated running time tl of recording compressed machine is circulated to secondary refrigerant leakage, in real time Detection, further improves air-conditioner reliability of operation and safety, improves the satisfaction that user uses.

In above-mentioned technical proposal, it is preferable that also include after step S118：Step S1182, judges that secondary refrigerant leakage is tired out Whether metering number N is equal to the second preset times D2, wherein D2 ＜ D1；When the judged result of step S1182 is to be, into step S1184；Indoor fan is converted to low wind rotating speed operation by setting speed operation by step S1184.

In the technical scheme, by judging whether secondary refrigerant leakage cumulative number N is equal to the second preset times D2, wherein D2 If so, indoor fan is converted to low wind rotating speed operation by setting speed operation by ＜ D1, by the rotating speed for reducing indoor fan, Air output is reduced, indoor leaving air temp is reduced, the refrigeration of air-conditioner is effectively improved, and then is ensured good refrigeration Effect, improves the satisfaction that user uses.

In above-mentioned technical proposal, it is preferable that also include：Step S1184, the also judgement including recording step S1182 are tied The specific cumulative number M that fruit is yes；Step S1186, judges whether specific cumulative number M is equal to the 3rd preset times D3；Work as step When the judged result of rapid S1186 is to be, into step S1188；Step S1188, indoor fan are pre- by the operation the 5th of low wind rotating speed If after duration t5, being converted to setting speed operation, and entering step S124.

In the technical scheme, it is recorded as by secondary refrigerant leakage cumulative number N to be equal to the number of times of the second preset times D2 Specific cumulative number M, judges whether specific cumulative number M is equal to the 3rd preset times D3, if so, the coolant feelings in explanation system Condition is very stable, there is no disclosure risk, and indoor fan is run after the 5th preset duration t5 by low wind rotating speed, is converted to setting and turns Speed operation, is run with low wind rotating speed in the 5th preset duration t5 by indoor fan, significantly reduces air output, reduce Leaving air temp, and then good refrigeration is ensure that, and after the 5th preset duration t5, indoor fan is converted to into setting and is turned Speed operation, and return reclocking and be recorded as time tt, indoor heat exchanger temperature T2 when record tt is initial value, recording compressed The accumulated running time tl of machine, is circulated to the secondary refrigerant leakage in system, real-time detection, further improves air-conditioner operation Reliability and safety, improve the satisfaction that user uses.

In above-mentioned technical proposal, it is preferable that step S112 is specifically included：Step S1122, in the operating time of compressor When ti reaches the first preset duration t1, judge △ T1=T1-T2 whether more than or equal to the first preset temperature difference A1；Work as step When the judged result of S1122 is to be, into step S1124, when the judged result of step S1122 is no, into step S124； Step S1124, when the operating time ti of compressor reaches the second preset duration t2, judges whether △ T2=T1-T2 are more than In the second preset temperature difference A2；When the judged result of step S1124 is to be, into step S114, when the judgement of step S1124 When being as a result no, into step S124.

In the technical scheme, by when the operating time ti of compressor reaches the first preset duration t1, judging △ T1 Whether=T1-T2 is more than or equal to the first preset temperature difference A1, if it is not, the refrigeration of explanation air-conditioner system is excellent, does not exist The risk of secondary refrigerant leakage, timing are simultaneously recorded as time tt, indoor heat exchanger temperature T2 when record tt is initial value, recording compressed machine Accumulated running time tl, the secondary refrigerant leakage in system is circulated, real-time detection, that further improves air-conditioner operation can By property and safety, the satisfaction that user uses is improved；If so, illustrate that the refrigeration of air-conditioner system is not good, in compression When the operating time ti of machine reaches the second preset duration t2, determine whether whether △ T2=T1-T2 are default more than or equal to second Temperature difference A2, if the determination result is YES, illustrates air-conditioner system there is a strong possibility the risk that there is secondary refrigerant leakage, in order to avoid drop The service life of low compression machine, while in order to avoid air-conditioner has burning and hidden peril of explosion, determining whether △ T=| △ T1- △ T2 | whether A3 poor less than or equal to the 3rd preset temperature, concrete, detailed detection is carried out to the secondary refrigerant leakage in system and is sentenced It is disconnected, and then obtain the accurate testing result with the presence or absence of secondary refrigerant leakage, further ensure air-conditioner operation safety and can By property, the satisfaction that user uses is improved, secondary refrigerant leakage is detected in compressor operating process for a long time, in real time while ensure that Probability, further ensure the safety of product, improve the satisfaction that user uses.When whether △ T2=T1-T2 are more than When the judged result of A2 poor equal to the second preset temperature is no, illustrate that the refrigeration in air-conditioner system is very stable, the temperature difference becomes Change less, cold medium flux is very stable, the risk that there is no secondary refrigerant leakage in further relating to air-conditioner system, by reclocking simultaneously It is recorded as time tt, indoor heat exchanger temperature T2 when record tt is initial value, the accumulated running time tl of recording compressed machine, to being Secondary refrigerant leakage in system is circulated, real-time detection, further improves air-conditioner reliability of operation and safety, improves user The satisfaction for using.

In above-mentioned technical proposal, it is preferable that also include：When the judged result of step S114 is no, into step S124。

In the technical scheme, when | the △ T1- △ T2 | that judge △ T=whether sentencing less than or equal to the 3rd poor A3 of preset temperature Disconnected result for it is no when, by timing and be recorded as time tt, indoor heat exchanger temperature T2 when record tt is initial value, recording compressed The accumulated running time tl of machine, is circulated to the secondary refrigerant leakage in system, real-time detection, further improves air-conditioner operation Reliability and safety, improve the satisfaction that user uses.

In above-mentioned technical proposal, it is preferable that also include：When the judged result of step S104 is no, return to step S104。

In the technical scheme, when judging that whether present mode of operation is that the judged result of refrigeration mode or dehumidification mode is When no, return is rejudged so that air-conditioner in the case where refrigeration mode or dehumidification mode external environment are warmmer, real-time detection The situation of secondary refrigerant leakage, in case the delivery temperature of secondary refrigerant leakage compressor rises very fast, impact refrigeration, while avoiding coolant Reveal the service life of reduction compressor or burn out compressor, be effectively guaranteed well refrigeration, and ensure that pressure The reliability of contracting machine and safety, while ensure that the safety of air-conditioner work, improve the satisfaction that user uses.

In any of the above-described technical scheme, it is preferable that the first preset duration, the second preset duration, the 3rd preset duration, Four preset durations are at least one of：The parameter relationship formula or fixed value of air-conditioner, the parameter of wherein air-conditioner be with down to It is one or a combination set of few：Compressor frequency or speed, indoor fan rotating speed, indoor inlet temperature T1, indoor heat exchanger temperature T2.

In the technical scheme, the first preset duration, the second preset duration, the 3rd preset duration, the 4th preset duration are At least one of：The parameter relationship formula or fixed value of air-conditioner, the wherein parameter of air-conditioner are at least one of or its group Close：Compressor frequency or speed, indoor fan rotating speed, indoor inlet temperature T1, indoor heat exchanger temperature T2.On the one hand, first The parameter relationship formula of preset duration, the second preset duration, the 3rd preset duration, the 4th preset duration for air-conditioner so that coolant Leak detection is closely coupled with the carrying out practically state of air-conditioner, and then improves sensitivity and the accuracy of secondary refrigerant leakage detection, So that secondary refrigerant leakage failure in time, is accurately shown when coolant occurs to reveal so that user can recognize sky accurately and in time The situation of device is adjusted, and notifies personnel's maintenance after sale, efficiently avoid burning, blast that air-conditioner causes because of secondary refrigerant leakage etc. Accident, is effectively guaranteed the safety of air-conditioner operation, improves the satisfaction that user uses；On the one hand, the first preset duration, Second preset duration, the 3rd preset duration, the 4th preset duration are fixed value, facilitate user according to oneself demand and air-conditioner Concrete operating mode specific fixed value is set, improve the participation of user so that the detection of secondary refrigerant leakage can more meet user and The demand of air-conditioner operating mode, and then improve the satisfaction that user uses.Further, the first preset duration, the second preset duration, 3rd preset duration, various expression waies of the 4th preset duration disclosure satisfy that different user, different air-conditioner, different operating modes Demand, it is applied widely.Further, the 5th preset duration, the first preset temperature are poor, the second preset temperature is poor, the 3rd pre- If temperature difference, the 4th preset temperature are poor, the parameter relationship formula or fixed value that the first preset temperature value can be air-conditioner, further Sensitivity and the accuracy of secondary refrigerant leakage detection are improved, the safety of air-conditioner operation is improved, is improved the satisfaction that user uses. Further, the parameter of air-conditioner is at least one of or its combination but not limited to this：Compressor frequency or speed, indoor wind Machine rotating speed, indoor inlet temperature T1, indoor heat exchanger temperature T2.

In above-mentioned technical proposal, it is preferable that indoor fan shows that the mode of secondary refrigerant leakage failure is at least one of Or its combination：Audio frequency, video, light, picture and text.

In the technical scheme, indoor fan show secondary refrigerant leakage failure mode be at least one of or its combination but Not limited to this：Audio frequency, video, light, picture and text, various display formats of secondary refrigerant leakage failure disclosure satisfy that different user, difference The demand of air-conditioner, it is applied widely, user's secondary refrigerant leakage can be reminded accurately and in time so that user notifies to sell in time Maintainer is keeped in repair afterwards, it is to avoid the accident such as burning that air-conditioner causes because of secondary refrigerant leakage, blast, is effectively guaranteed sky The safety of device operation is adjusted, the satisfaction that user uses is improved, meanwhile, secondary refrigerant leakage failure can show simultaneously in a variety of forms Show, play a part of multi cue, in case user does not have found secondary refrigerant leakage fault message in time and there is potential safety hazard, further The safety and reliability that air-conditioner is used is improved, the satisfaction that user uses is improved.

In any of the above-described technical scheme, it is preferable that the first preset duration t1, wherein 1 minute≤t1≤10 minute；Second Preset duration t2, wherein 2 minutes≤t2≤10 minute；3rd preset duration t3, wherein 2 minutes≤t3≤5 minute；4th presets Duration t4, wherein 50 minutes≤t4≤100 minute；5th preset duration t5, wherein 3 minutes≤t4≤10 minute；First presets Temperature difference A1, wherein 5 DEG C≤A1≤15 DEG C；Second preset temperature difference A2, wherein 5 DEG C≤A2≤15 DEG C；3rd preset temperature is poor A3, wherein 0.5 DEG C≤A3≤3 DEG C；4th preset temperature difference A4, wherein 1 DEG C≤A4≤5 DEG C；First preset times D1, wherein 3 ≤D1≤10；Second preset times D2, wherein 2≤D2≤5；3rd preset times D3, wherein 2≤D2≤4.

In the technical scheme, the first preset duration t1, the second preset duration t2, the 3rd preset duration t3, the 4th preset Duration t4, the 5th preset duration t5, the first preset temperature difference A1, the second preset temperature difference A2, the 3rd preset temperature difference A3, the 4th Preset temperature difference A4, the first preset times D1, the second preset times D2, the scope of the 3rd preset times D3, are effectively guaranteed Secondary refrigerant leakage detection method in time, accurately, delicately can detect whether coolant occurs to reveal, and notify accurately and in time User so that the motion of compressor is reasonable, it is ensured that the service life of compressor, while ensure that good refrigeration, saves About the energy, improves the utilization rate of coolant, improves the satisfaction that user uses.

In any of the above-described technical scheme, it is preferable that the first preset duration t1 is 2 minutes；Second preset duration t2 is 3 points Clock；3rd preset duration t3 is 3 minutes；4th preset duration t4 is 60 minutes；5th preset duration t5 is 5 minutes；First is pre- If temperature difference A1 is 10 DEG C；Second preset temperature difference A2 is 10 DEG C；3rd preset temperature difference A3 is 1 DEG C；4th preset temperature is poor A4 is 2 DEG C；First preset times D1 are 3；Second preset times D2 are 2；3rd preset times D3 are 2.

In the technical scheme, under air-conditioner refrigeration mode or dehumidification mode, during air-conditioner continuous service 2 minutes, sentence Whether disconnected △ T1=T1-T2 are more than or equal to 10 DEG C, if so, then judge △ T1=again in air-conditioner continuous service 3 minutes Whether T1-T2 is more than or equal to 10 DEG C, and whether | △ T1- △ T2 |, less than or equal to 1 DEG C, if so, illustrate cold if so, then to judge △ T= Matchmaker reveals, and adds 1 by secondary refrigerant leakage times N, if the initial value of N is 0, is now recorded as N=1, if it is not, starting timing and recording For time tt, the wherein initial value of tt is 0, while recording indoor heat exchanger temperature T2 when tt is initial value, is recorded as T2 (0), Whether the accumulated running time tl of recording compressed machine, when tl=60 minutes, judge indoor inlet temperature T1 more than or equal to first Preset temperature value B, if so, then restarts timing and is recorded as time tt, indoor heat exchanger temperature when record tt is initial value T2, the accumulated running time tl of recording compressed machine, if it is not, indoor heat exchanger temperature T2 during record tl=60 minutes, judges △ T22 Whether whether=T2 (i)-T2 (0) is less than 2 DEG C, and if so, compressor shutdown was restarted after 3 minutes, and rejudge compressor and be Starting state, if it is not, then restart timing and be recorded as time tt, indoor heat exchanger temperature T2 when record tt is initial value, The accumulated running time tl of recording compressed machine.By whether judging N equal to 3, if it is, explanation secondary refrigerant leakage is serious, air-conditioner Shut down, indoor fan shows secondary refrigerant leakage failure, according to secondary refrigerant leakage failure, user notifies that after-sale service personnel are tieed up in time Repair, it is to avoid secondary refrigerant leakage occurs the danger of explosion and burning, is effectively guaranteed air-conditioner reliability of operation and safety, Simultaneously, it is ensured that the service life of compressor, improve the satisfaction that user uses；Further, as N=2, compressor shutdown Restart within 3 minutes, while inner blower rotating speed is reduced to low wind operation (if current setting speed is low wind by current setting speed It is still low wind that the rotating speed of rotating speed then indoor fan is constant), and return and rejudge whether compressor is starting state, further Ground, as N=2, compressor shutdown is restarted for 3 minutes, while inner blower rotating speed is reduced to low wind operation by current setting speed And after further detecting whether coolant is revealed, if N<3, then the low wind operation of indoor fan switched to setting speed operation after 5 minutes, and Start timing and be recorded as time tt, indoor heat exchanger temperature T2 when record tt is initial value, the accumulative operation of recording compressed machine Whether time tl, real-time detecting system there is secondary refrigerant leakage.Secondary refrigerant leakage detection method in the present invention is to coolant in air-conditioner The detection sensitivity of leakage is high, can detect, efficiently avoid compression in air-conditioner during coolant leakage 20%-30% The accident generation that machine explodes and burns, it is ensured that the safety of product operation, while improve the service life of compressor.Enter one Step ground, by temperature sensor detect T1, T2, due to the application be to the difference of T1 and T2 does not judge in the same time, even if The detected value of temperature sensor has deviation, but the difference of the two sensor detected values does not have deviation, efficiently avoid Yin Wen The detection error of degree sensor itself causes the erroneous judgement of coolant leakage, further increases the accuracy of secondary refrigerant leakage detection method And sensitivity, improve the satisfaction that user uses.Further, with environmental requirement more and more higher, coolant is R32, R290 etc. Environmentally friendly coolant.

The detecting system that the air-conditioner coolant that the embodiment of second aspect present invention is provided is revealed, by detector unit in sky After adjusting device energization start, the present mode of operation of air-conditioner is detected, the first judging unit judges whether present mode of operation is system Chill formula or dehumidification mode, the first performance element are let out in the case of being, to record coolant in the judged result of the first judging unit The cumulative number N of dew, the wherein initial value of N are 0, and detect the working condition of compressor, and the second judging unit judges compressor Be whether starting state, the second performance element when the judged result of the second judging unit is to be, recording compressed machine this startup Operating time ti, indoor inlet temperature T1, indoor heat exchanger temperature T2, and it is pre- to reach first in the operating time ti of compressor If during duration t1, starting the 3rd judging unit, whether the 3rd judging unit judges △ T1=T1-T2 more than or equal to the first default temperature Degree difference A1, when the operating time ti of compressor reaches the second preset duration t2, judges that whether △ T2=T1-T2 are more than or equal to the Two preset temperatures difference A2, the 3rd performance element the judged result of the 3rd judging unit be when, start the 4th judging unit, 4th judging unit, | △ T1- △ T2 | the whether A3s poor less than or equal to the 3rd preset temperature for judging △ T=, the 4th performs list Unit illustrates that coolant refrigeration effect is not excellent, secondary refrigerant leakage cumulative number N is added when the judged result of the 4th judging unit is to be 1, the 5th judging unit judges that whether secondary refrigerant leakage cumulative number N is equal to the first preset times D1, and the 6th performance element is the 5th The judged result of unit when being, to illustrate secondary refrigerant leakage, shut down, and indoor fan shows secondary refrigerant leakage failure, has by control air-conditioner Avoid to effect secondary refrigerant leakage compressor exhaust temperature and rise the very fast service life for reducing compressor, serve and definitely protect And suggesting effect, while avoiding the danger of burning that secondary refrigerant leakage causes and blast, it is effectively improved air-conditioner operation Safety and reliability, meanwhile, when the judged result of the 5th judging unit is no, the 5th performance element control compressor shutdown Restart after 3rd preset duration t3, and rejudge whether the current operating state of compressor is starting state, can be in sky In adjusting device start compressor start and running, whether long-term detection coolant is revealed, it is to avoid when can only detect just start operation The section coolant whether detection revealed and whether cannot reveal to coolant in air-conditioner running, further ensures air-conditioner fortune Capable safety, and it is effectively guaranteed the service life of compressor；First preset duration t1 is judged by the 4th judging unit When the difference and the second preset duration t2 of indoor inlet temperature T1 and indoor heat exchanger temperature T2 in room inlet temperature T1 with it is indoor Difference between the difference of heat exchange temperature T2 determining secondary refrigerant leakage cumulative number, i.e., by judging the temperature difference at two moment The relation of value and preset temperature difference efficiently avoid by solely judging temperature to determine determining whether coolant is revealed Whether coolant is revealed and the testing result of secondary refrigerant leakage is affected as temperature detection has differences, and is effectively guaranteed coolant inspection The accuracy of survey, susceptiveness and effectiveness, further ensure the safety and reliability of product work, improve what user used Satisfaction.

In above-mentioned technical proposal, it is preferable that also include：7th performance element, for the judgement in the 3rd judging unit When being as a result no, start timing and be simultaneously recorded as time tt, wherein the initial value of tt is 0, while when record tt is initial value in room Heat exchange temperature T2, is recorded as T2 (0), the accumulated running time tl of recording compressed machine, and in the accumulated running time of compressor After tl reaches the 4th preset duration t4, start the 6th judging unit；6th judging unit, for judging that indoor inlet temperature T1 is It is no to be more than or equal to the first preset temperature value B；8th performance element, for when the judged result of the 6th judging unit is to be, returning Return the 7th performance element；9th performance element, for the judged result in the 6th judging unit for it is no when, recording compressed machine it is tired Indoor heat exchanger temperature T2 when meter run time tl reaches four preset durations t4, is recorded as T2 (i)；7th judging unit, uses In judging △ T22=T2 (i)-T2 (0) whether less than the 4th preset temperature difference A4；Tenth performance element, for judging the 7th The judged result of unit, is back to when the judged result of the 7th judging unit is no, when being, to be back to the 5th performance element 7th performance element.

In the technical scheme, by the judged result in the 3rd judging unit for it is no when, the 7th performance element start meter When and the time of being recorded as tt, wherein tt initial value be 0, while record tt be initial value when indoor heat exchanger temperature T2, record For T2 (0), the accumulated running time tl of recording compressed machine, and when the accumulated running time tl of compressor reaches the 4th preset duration After t4, start the 6th judging unit, the 6th judging unit judges indoor inlet temperature T1 whether more than or equal to the first preset temperature Value B, if so, illustrates the risk that temporarily there is no secondary refrigerant leakage in air-conditioner system, and the 8th performance element is then back to the 7th Performance element, reclocking are simultaneously recorded as time tt, indoor heat exchanger temperature T2 when record tt is initial value, recording compressed machine Accumulated running time tl, continuation detect that to system the leak case of the detection coolant of real-time, circulation is further improved empty Device reliability of operation and safety are adjusted, the satisfaction that user uses is improved；When the judged result of the 6th judging unit is no, Illustrate that the refrigeration of coolant is undesirable, there is secondary refrigerant leakage, the accumulative fortune of the 9th performance element recording compressed machine Indoor heat exchanger temperature T2 when row time tl reaches four preset durations t4, is recorded as T2 (i), and the 7th judging unit judges △ Whether T22=T2 (i)-T2 (0) is less than the 4th preset temperature difference A4；Judged result of tenth performance element in the 7th judging unit It is yes, is back to the 5th performance element, determine whether whether coolant is revealed, avoids continuous operation in not stopping process from occurring Secondary refrigerant leakage causes the risk that compressor burns, and is effectively improved the service life of compressor, while ensure that air-conditioner is transported Capable safety and reliability, improves the satisfaction that user uses；It is no in the judged result of the 7th judging unit, illustrates air-conditioning Temporarily there is no the risk of secondary refrigerant leakage in device system, be back to the 7th performance element, secondary refrigerant leakage be circulated, examined in real time Survey, further improve air-conditioner reliability of operation and safety, improve the satisfaction that user uses.

In above-mentioned technical proposal, it is preferable that also include：8th judging unit, for judging secondary refrigerant leakage cumulative number N Whether the second preset times D2, wherein D2 ＜ D1 are equal to；11st performance element, for the judged result in the 8th judging unit During to be, indoor fan is converted to into low wind rotating speed operation by setting speed operation.

In the technical scheme, judge whether secondary refrigerant leakage cumulative number N is default equal to second by the 8th judging unit Number of times D2, wherein D2 ＜ D1, the 11st performance element when the judged result of the 8th judging unit is to be, by indoor fan by setting Determine rotating speed operation and be converted to low wind rotating speed operation, by the rotating speed for reducing indoor fan, reduce air output, reduce indoor side air-out Temperature, is effectively improved the refrigeration of air-conditioner, and then ensures good refrigeration, improve the satisfaction that user uses Degree.

In above-mentioned technical proposal, it is preferable that also include：11st performance element, is additionally operable to record the 8th judging unit The judged result specific cumulative number M that is yes；9th judging unit, for judging specific cumulative number M whether equal to the 3rd Preset times D3；12nd performance element, for when the judged result of the 9th judging unit is to be, indoor fan is turned by low wind After speed the 5th preset duration t5 of operation, setting speed operation is converted to, and starts the 7th performance element.

In the technical scheme, secondary refrigerant leakage cumulative number N is equal to by the second preset times by the 11st performance element The number of times of D2 is recorded as specific cumulative number M, and the 12nd performance element of the 9th judging unit is tied in the judgement of the 9th judging unit Fruit for, when being, the coolant situation in explanation system is very stable, there is no disclosure risk, by indoor fan by low wind rotating speed operation the After five preset durations t5, setting speed operation is converted to, is transported with low wind rotating speed in the 5th preset duration t5 by indoor fan OK, and start the 7th performance element, significantly reduce air output, reduce leaving air temp, and then ensure that good refrigeration Effect, and after the 5th preset duration t5, indoor fan is converted to into setting speed operation, and starts the 7th performance element, it is right Secondary refrigerant leakage in system is circulated, real-time detection, further improves air-conditioner reliability of operation and safety, improves and use The satisfaction that family uses.

In above-mentioned technical proposal, it is preferable that the 3rd judging unit also includes：First start unit, in compressor Operating time ti when reaching the first preset duration t1, start the first temperature difference judging unit；First temperature difference judging unit, for sentencing Whether disconnected △ T1=T1-T2 are more than or equal to the first preset temperature difference A1；Second start unit, in the first temperature difference judging unit Judged result, when being, when the operating time ti of compressor reaches the second preset duration t2, to start second temperature difference and judge single Unit, when the judged result of the first temperature difference judging unit is no, starts the 7th performance element；Second temperature difference judging unit, is used for Judge △ T2=T1-T2 whether more than or equal to the second preset temperature difference A2；3rd start unit, for judging single when second temperature difference The judged result of unit, when being, to start the 4th judging unit, when the second temperature difference judging unit judged result for it is no when, start the Seven performance elements.

In the technical scheme, the first preset duration t1 is reached by operating time ti of first start unit in compressor When, start the first temperature difference judging unit, whether the first temperature difference judging unit judges △ T1=T1-T2 more than or equal to the first default temperature Degree difference A1, the second start unit illustrate the refrigeration effect of air-conditioner system when the judged result of the first temperature difference judging unit is no It is really excellent, there is no the risk of secondary refrigerant leakage, start the 7th performance element, the secondary refrigerant leakage in system is circulated, in real time Detection, further improves air-conditioner reliability of operation and safety, improves the satisfaction that user uses；Second start unit exists When the judged result of the first temperature difference judging unit is to be, when the operating time ti of compressor reaches the second preset duration t2, open Whether dynamic second temperature difference judging unit, determine whether △ T2=T1-T2 more than or equal to second by the second temperature difference judging unit When the judged result of the second temperature difference judging unit is to be, preset temperature difference A2, the 3rd start unit illustrate that air-conditioner system has The risk of secondary refrigerant leakage is there may be greatly very, in order to avoid reducing the service life of compressor, while in order to avoid air-conditioner is deposited In burning and hidden peril of explosion, start the 4th judging unit, concrete, detailed detection is carried out to the secondary refrigerant leakage in system and is sentenced It is disconnected, and then obtain the accurate testing result with the presence or absence of secondary refrigerant leakage, further ensure air-conditioner operation safety and can By property, the satisfaction that user uses is improved, secondary refrigerant leakage is detected in compressor operating process for a long time, in real time while ensure that Probability, further ensure the safety of product, improve the satisfaction that user uses.3rd start unit is in second temperature difference When the judged result of judging unit is no, illustrate that the refrigeration in air-conditioner system is very stable, difference variation is little, coolant stream Amount is very stable, there is no the risk of secondary refrigerant leakage in further relating to air-conditioner system, starts the 7th performance element, in system Secondary refrigerant leakage is circulated, real-time detection, further improves air-conditioner reliability of operation and safety, improves what user used Satisfaction.

In above-mentioned technical proposal, it is preferable that the 4th performance element, the judged result for being additionally operable to work as the 4th judging unit is When no, start the 7th performance element.

In the technical scheme, the 4th performance element is additionally operable to when the judged result of the 4th judging unit is no, is started 7th performance element, is circulated to the secondary refrigerant leakage in system, real-time detection, further improves air-conditioner reliability of operation And safety, improve the satisfaction that user uses.

In above-mentioned technical proposal, it is preferable that the first performance element, the judged result for being additionally operable to work as the first judging unit is When no, the first judging unit is returned.

In the technical scheme, the first performance element is additionally operable to when the judged result of the first judging unit is no, is returned First judging unit is rejudged so that air-conditioner in the case where refrigeration mode or dehumidification mode external environment are warmmer, in real time The situation of detection secondary refrigerant leakage, in case the delivery temperature of secondary refrigerant leakage compressor rises very fast, impact refrigeration, while avoiding Secondary refrigerant leakage reduces the service life of compressor or burns out compressor, has been effectively guaranteed well refrigeration, and has ensured The reliability of compressor and safety, while ensure that the safety of air-conditioner work, improve the satisfaction that user uses.

In any of the above-described technical scheme, it is preferable that the 6th performance element control indoor fan shows secondary refrigerant leakage failure Mode be at least one of or its combination：Audio frequency, video, light, picture and text.

In the technical scheme, the 6th performance element control indoor fan show secondary refrigerant leakage failure mode be with down to One or a combination set of few but not limited to this：Audio frequency, video, light, picture and text, various display formats of secondary refrigerant leakage failure can be expired The demand of sufficient different user, different air-conditioners, it is applied widely, user's secondary refrigerant leakage can be reminded accurately and in time so that User notifies that after-sales service personnel are keeped in repair in time, it is to avoid the accident such as burning that air-conditioner causes because of secondary refrigerant leakage, blast, The safety of air-conditioner operation is effectively guaranteed, the satisfaction that user uses is improved, meanwhile, secondary refrigerant leakage failure can be simultaneously Show in a variety of forms, play a part of multi cue, in case user does not have found secondary refrigerant leakage fault message in time and there is peace Full hidden danger, further improves the safety and reliability that air-conditioner is used, improves the satisfaction that user uses.

In any of the above-described technical scheme, it is preferable that the first preset duration t1, wherein 2 minutes≤t1≤10 minute；Second Preset duration t2, wherein 3 minutes≤t2≤10 minute；3rd preset duration t3, wherein 2 minutes≤t3≤5 minute；4th presets Duration t4, wherein 50 minutes≤t4≤100 minute；5th preset duration t5, wherein 3 minutes≤t4≤10 minute；First presets Temperature difference A1, wherein 5 DEG C≤A1≤15 DEG C；Second preset temperature difference A2, wherein 5 DEG C≤A2≤15 DEG C；State the 3rd preset temperature Difference A3, wherein 0.5 DEG C≤A3≤3 DEG C；4th preset temperature difference A4, wherein 1 DEG C≤A4≤5 DEG C；First preset times D1, wherein 3≤D1≤10；Second preset times D2, wherein 2≤D2≤5；3rd preset times D3, wherein 2≤D2≤4.

In any of the above-described technical scheme, it is preferable that the first preset duration t1 is 5 minutes；Second preset duration t2 is 8 points Clock；3rd preset duration t3 is 3 minutes；4th preset duration t4 is 60 minutes；5th preset duration t5 is 5 minutes；First is pre- If temperature difference A1 is 10 DEG C；Second preset temperature difference A2 is 10 DEG C；3rd preset temperature difference A3 is 1 DEG C；4th preset temperature is poor A4 is 2 DEG C；First preset times D1 are 3；Second preset times D2 are 2；3rd preset times D3 are 2.

A kind of embodiment in accordance with a further aspect of the present invention, it is also proposed that air-conditioner, including any of the above-described technical scheme The detecting system that air-conditioner coolant is revealed.

The air-conditioner that the embodiment of further aspect of the present invention is provided, because of the air-conditioner coolant including any of the above-described technical scheme The detecting system of leakage, thus the whole for possessing the detecting system of the leakage of the air-conditioner coolant described in any of the above-described technical scheme has Beneficial effect, will not be described here.

The additional aspect and advantage of the present invention will become obvious in following description section, or by the practice of the present invention Recognize.

Description of the drawings

The above-mentioned and/or additional aspect and advantage of the present invention will become from the description with reference to accompanying drawings below to embodiment It is substantially and easy to understand, wherein：

Fig. 1 a are the schematic flow sheets of the detection method that the air-conditioner coolant of one embodiment of the present of invention is revealed；

Fig. 1 b are the schematic flow sheets of the detection method that the air-conditioner coolant of another embodiment of the present invention is revealed；

Fig. 2 a are the schematic block diagrams of the detecting system that the air-conditioner coolant of one embodiment of the present of invention is revealed；

Fig. 2 b are the schematic block diagrams of the detecting system that the air-conditioner coolant of another embodiment of the present invention is revealed

Fig. 3 is the schematic block diagram of the air-conditioner of embodiments of the invention.

Specific embodiment

It is in order to be more clearly understood that the above objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and concrete real Apply mode to be further described in detail the present invention.It should be noted that in the case where not conflicting, the enforcement of the application Feature in example and embodiment can be mutually combined.

Many details are elaborated in the following description in order to fully understand the present invention, but, the present invention may be used also Implemented with being different from other modes described here using other, therefore, protection scope of the present invention is not by described below Specific embodiment restriction.

The detection side that air-conditioner coolant described according to some embodiments of the invention is revealed is described referring to Fig. 1 a to Fig. 3 Detecting system and air-conditioner that method, air-conditioner coolant are revealed.

The present invention proposes the detection method that a kind of air-conditioner coolant is revealed, and Fig. 1 a show one embodiment of the present of invention Air-conditioner coolant leakage detection method schematic flow sheet：

Step S102, air-conditioner are powered after start, detect the present mode of operation of air-conditioner；

Step S104, judges whether present mode of operation is refrigeration mode or dehumidification mode；

When the judged result of step S104 is to be, into step S106；

Step S106, records secondary refrigerant leakage cumulative number N, and detects the current operating state of compressor；

Step S108, judges whether current operating state is starting state；

When the judged result of step S108 is to be, into step S110；

Step S110, recording compressed machine this start operating time ti, indoor inlet temperature T1, indoor heat exchanger temperature T2；

Whether step S112, when the operating time ti of compressor reaches the first preset duration t1, judge △ T1=T1-T2 A1 poor more than or equal to the first preset temperature, when the operating time ti of compressor reaches the second preset duration t2, judges △ T2= Whether T1-T2 is more than or equal to the second preset temperature difference A2；

When the judged result of step S112 is is, into step S114；

Step S114, judges △ T=| △ T1- △ T2 | whether A3 poor less than or equal to the 3rd preset temperature；

When the judged result of step S114 is to be, into step S116；

Secondary refrigerant leakage cumulative number N is added 1 by step S116, wherein, the initial value of secondary refrigerant leakage cumulative number N is 0；

Step S118, judges whether secondary refrigerant leakage cumulative number N is equal to the first preset times D1；

When the judged result of step S118 is no, into step S120；

Step S120, restarts after the 3rd preset duration t3 of compressor shutdown, and return to step S108；

When the judged result of step S118 is to be, into step S122；

Step S122, air-conditioner are shut down, and indoor fan shows secondary refrigerant leakage failure；Wherein, t1 ＜ t2.

The schematic flow sheet of the air-conditioner coolant leakage detection method of the one embodiment of the present of invention shown in Fig. 1 a is also wrapped Include：

When the judged result of step S112 is no, into step S124；

Step S124, starts timing and is recorded as time tt, and wherein the initial value of tt is 0, while it is initial value to record tt When indoor heat exchanger temperature T2, be recorded as T2 (0), the accumulated running time tl of recording compressed machine；

Step S126, after the accumulated running time tl of compressor reaches four preset durations t4, judges that pathogenic wind-warm is entered in interior Whether degree T1 is more than or equal to the first preset temperature value B；

When the judged result of step S126 is to be, return to step S124, when the judged result of step S126 is no, is entered Enter step S128；

Step S128, indoor heat exchanger temperature when the accumulated running time tl of recording compressed machine reaches four preset durations t4 T2, is recorded as T2 (i)；

Whether step S130, judge △ T22=T2 (i)-T2 (0) less than the 4th preset temperature difference A4；

When the judged result of step S130 is to be, return to step S120；

When the judged result of step S130 is no, return to step S124.

The detection method that the air-conditioner coolant that the present invention is provided is revealed, reaches first by the operating time ti in compressor During preset duration t1, whether △ T1=T1-T2 are judged more than or equal to the first preset temperature difference A1, in the operating time ti of compressor When reaching the second preset duration t2, whether △ T2=T1-T2 are judged more than or equal to the second preset temperature difference A2, when judged result is When no, start timing and be recorded as time tt, wherein the initial value of tt is 0, while recording indoor heat exchanger when tt is initial value Temperature T2, is recorded as T2 (0), the accumulated running time tl of recording compressed machine, and when the accumulated running time tl of compressor reaches After 4th preset duration t4, judge that indoor inlet temperature T1, whether more than or equal to the first preset temperature value B, if so, illustrates air-conditioning The risk that temporarily there is no secondary refrigerant leakage in device system, then return reclocking and be recorded as time tt, and record tt is initial Indoor heat exchanger temperature T2 during value, the accumulated running time tl of recording compressed machine, continuation are detected to system, in real time, are circulated Detection coolant leak case, further improve air-conditioner reliability of operation and safety, improve the satisfaction that user uses Degree；If it is not, the refrigeration of explanation coolant is undesirable, there is secondary refrigerant leakage, by the accumulative fortune of recording compressed machine Indoor heat exchanger temperature T2 when row time tl reaches four preset durations t4, is recorded as T2 (i)；Judge △ T22=T2 (i)-T2 (0) whether it is less than the 4th preset temperature difference A4；If the determination result is YES, restart after the 3rd preset duration t3 of compressor shutdown, And rejudge whether the state of compressor is starting state, determine whether whether coolant is revealed, to avoid continuous operation not Occur the risk that secondary refrigerant leakage causes compressor to burn in stopping process, be effectively improved the service life of compressor, while The safety and reliability of air-conditioner operation is ensure that, the satisfaction that user uses is improved；When △ T22=T2 (i)-T2 (0) are It is no be less than the 4th preset temperature difference A4 for it is no be the risk that illustrate temporarily not existing in air-conditioner system secondary refrigerant leakage, return and weigh New timing is simultaneously recorded as time tt, indoor heat exchanger temperature T2 when record tt is initial value, during the accumulative operation of recording compressed machine Between tl, secondary refrigerant leakage is circulated, real-time detection, further improves air-conditioner reliability of operation and safety, improve and use The satisfaction that family uses.

The schematic flow sheet of the air-conditioner coolant leakage detection method of the one embodiment of the present of invention shown in Fig. 1 a, in step Also include after rapid S118：

Step S1182, judges whether secondary refrigerant leakage cumulative number N is equal to the second preset times D2, wherein D2 ＜ D1；

When the judged result of step S1182 is to be, into step S1184；

Indoor fan is converted to low wind rotating speed operation by setting speed operation by step S1184.

The detection method that the air-conditioner coolant that the present invention is provided is revealed, by judging secondary refrigerant leakage cumulative number N whether etc. In the second preset times D2, wherein D2 ＜ D1, indoor fan is converted to into low wind rotating speed operation by setting speed operation if so, By the rotating speed for reducing indoor fan, air output is reduced, indoor leaving air temp is reduced, is effectively improved the refrigeration of air-conditioner Effect, and then ensure good refrigeration, improve the satisfaction that user uses.

The schematic flow sheet of the air-conditioner coolant leakage detection method of the one embodiment of the present of invention shown in Fig. 1 a, also wraps Include：

Step S1184, the specific cumulative number M for being also yes including the judged result of recording step S1182；

Step S1186, judges whether specific cumulative number M is equal to the 3rd preset times D3；

When the judged result of step S1186 is to be, into step S1188；

Step S1188, indoor fan are run after the 5th preset duration t5 by low wind rotating speed, are converted to setting speed operation, And enter step S124.

The detection method that the air-conditioner coolant that the present invention is provided is revealed, by secondary refrigerant leakage cumulative number N is equal to second The number of times of preset times D2 is recorded as specific cumulative number M, judges whether specific cumulative number M is equal to the 3rd preset times D3, If so, the coolant situation in explanation system is very stable, there is no disclosure risk, and indoor fan is pre- by the operation the 5th of low wind rotating speed If after duration t5, being converted to setting speed operation, run with low wind rotating speed in the 5th preset duration t5 by indoor fan, had Air output is reduced effect, leaving air temp is reduced, and then be ensure that good refrigeration, and in the 5th preset duration t5 Afterwards, indoor fan is converted to into setting speed operation, and returns reclocking and be recorded as time tt, when record tt is initial value Indoor heat exchanger temperature T2, the accumulated running time tl of recording compressed machine are circulated to the secondary refrigerant leakage in system, examine in real time Survey, further improve air-conditioner reliability of operation and safety, improve the satisfaction that user uses.

The schematic flow sheet of the air-conditioner coolant leakage detection method of an alternative embodiment of the invention shown in Fig. 1 b, also Including：

Step S1122, when the operating time ti of compressor reaches the first preset duration t1, judges that △ T1=T1-T2 are It is no to be more than or equal to the first preset temperature difference A1；

When the judged result of step S1122 is to be, into step S1124, when the judged result of step S1122 is no When, into step S124；

Step S1124, when the operating time ti of compressor reaches the second preset duration t2, judges that △ T2=T1-T2 are It is no to be more than or equal to the second preset temperature difference A2；

When the judged result of step S1124 is to be, into step S114, when the judged result of step S1124 is no, Into step S124.

The detection method that the air-conditioner coolant that the present invention is provided is revealed, reaches first by the operating time ti in compressor During preset duration t1, whether △ T1=T1-T2 are judged more than or equal to the first preset temperature difference A1, if it is not, explanation air-conditioner system Refrigeration it is excellent, there is no the risk of secondary refrigerant leakage, timing is simultaneously recorded as time tt, record tt be initial value when room in change Hot device temperature T2, the accumulated running time tl of recording compressed machine are circulated to the secondary refrigerant leakage in system, real-time detection, are entered One step improves air-conditioner reliability of operation and safety, improves the satisfaction that user uses；If so, illustrate air-conditioner system Refrigeration is not good, when the operating time ti of compressor reaches the second preset duration t2, determines whether △ T2=T1-T2 Whether it is more than or equal to the second preset temperature difference A2, if the determination result is YES, illustrates air-conditioner system there is a strong possibility there is coolant The risk of leakage, in order to avoid reducing the service life of compressor, while in order to avoid air-conditioner has burning and hidden peril of explosion, | the △ T1- △ T2 | that determine whether △ T=whether A3 poor less than or equal to the 3rd preset temperature, is carried out to the secondary refrigerant leakage in system Specifically, detailed detection and judgement, and then the accurate testing result with the presence or absence of secondary refrigerant leakage is obtained, further ensure air-conditioning The safety and reliability of device operation, improves the satisfaction that uses of user, at the same ensure that it is long-term in compressor operating process, The probability of secondary refrigerant leakage is detected in real time, the safety of product is further ensured, and improves the satisfaction that user uses.Work as △ When whether more than or equal to the second preset temperature difference A2 T2=T1-T2 judged results are no, the refrigeration in air-conditioner system is illustrated Effect is very stable, and less, cold medium flux is very stable, the wind that there is no secondary refrigerant leakage in further relating to air-conditioner system for difference variation Danger, by reclocking and is recorded as time tt, indoor heat exchanger temperature T2 when record tt is initial value, recording compressed machine it is tired Meter run time tl, is circulated to the secondary refrigerant leakage in system, real-time detection, further improves air-conditioner reliability of operation And safety, improve the satisfaction that user uses.

The schematic flow sheet of the air-conditioner coolant leakage detection method of the one embodiment of the present of invention shown in Fig. 1 a, also wraps Include：When the judged result of step S114 is no, into step S124.

The detection method that the air-conditioner coolant that the present invention is provided is revealed, when | the △ T1- △ T2 | that judge △ T=whether less than etc. In the 3rd preset temperature difference A3 judged result for it is no when, by timing and be recorded as time tt, room when record tt is initial value Interior heat exchange temperature T2, the accumulated running time tl of recording compressed machine, are circulated to the secondary refrigerant leakage in system, examine in real time Survey, further improve air-conditioner reliability of operation and safety, improve the satisfaction that user uses.

The schematic flow sheet of the air-conditioner coolant leakage detection method of the one embodiment of the present of invention shown in Fig. 1 a, also wraps Include：When the judged result of step S104 is no, return to step S104.

The detection method that the air-conditioner coolant that the present invention is provided is revealed, when judging whether present mode of operation is refrigeration mode Or the judged result of dehumidification mode for it is no when, return is rejudged so that air-conditioner refrigeration mode or dehumidification mode the external world ring In the case that border is hotter, the situation of real-time detection secondary refrigerant leakage, in case the delivery temperature of secondary refrigerant leakage compressor rises very fast, shadow Refrigeration is rung, while avoiding secondary refrigerant leakage from reducing the service life of compressor or burn out compressor, is effectively guaranteed good Refrigeration is got well, and ensure that reliability and the safety of compressor, while ensure that the safety of air-conditioner work, improved The satisfaction that user uses.

In one embodiment of the invention, it is preferable that the first preset duration, the second preset duration, the 3rd preset duration, 4th preset duration is at least one of：The parameter relationship formula or fixed value of air-conditioner, the wherein parameter of air-conditioner are following At least one or its combination：Compressor frequency or speed, indoor fan rotating speed, indoor inlet temperature T1, indoor heat exchanger temperature T2。

In this embodiment, the first preset duration, the second preset duration, the 3rd preset duration, the 4th preset duration be with It is at least one lower：The parameter relationship formula or fixed value of air-conditioner, the wherein parameter of air-conditioner are at least one of or its combination： Compressor frequency or speed, indoor fan rotating speed, indoor inlet temperature T1, indoor heat exchanger temperature T2.On the one hand, first preset The parameter relationship formula of duration, the second preset duration, the 3rd preset duration, the 4th preset duration for air-conditioner so that secondary refrigerant leakage Detection is closely coupled with the carrying out practically state of air-conditioner, and then improves sensitivity and the accuracy of secondary refrigerant leakage detection so that Secondary refrigerant leakage failure is shown when coolant occurs to reveal in time, accurately so that user can recognize air-conditioner accurately and in time Situation, and notify personnel's maintenance after sale, efficiently avoid the things such as burning, blast that air-conditioner causes because of secondary refrigerant leakage Therefore, the safety of air-conditioner operation is effectively guaranteed, the satisfaction that user uses is improved；On the one hand, the first preset duration, Two preset durations, the 3rd preset duration, the 4th preset duration are fixed value, facilitate user according to oneself demand and air-conditioner Concrete operating mode arranges specific fixed value, improves the participation of user so that the detection of secondary refrigerant leakage can more meet user and sky The demand of device operating mode is adjusted, and then improves the satisfaction that user uses.Further, the first preset duration, the second preset duration, Three preset durations, various expression waies of the 4th preset duration disclosure satisfy that different user, different air-conditioners, the need of different operating modes Ask, it is applied widely.Further, the 5th preset duration, the first preset temperature are poor, the second preset temperature is poor, the 3rd presets Temperature difference, the 4th preset temperature are poor, the parameter relationship formula or fixed value that the first preset temperature value can be air-conditioner, further carry The sensitivity of high secondary refrigerant leakage detection and accuracy, improve the safety of air-conditioner operation, improve the satisfaction that user uses.Enter One step ground, the parameter of air-conditioner is at least one of or its combination but not limited to this：Compressor frequency or speed, indoor fan Rotating speed, indoor inlet temperature T1, indoor heat exchanger temperature T2.

In one embodiment of the invention, it is preferable that indoor fan show secondary refrigerant leakage failure mode be with down to It is one or a combination set of few：Audio frequency, video, light, picture and text.

In this embodiment, indoor fan show secondary refrigerant leakage failure mode be at least one of or its combination but not It is limited to this：Audio frequency, video, light, picture and text, various display formats of secondary refrigerant leakage failure disclosure satisfy that different user, different skies The demand of device is adjusted, it is applied widely, user's secondary refrigerant leakage can be reminded accurately and in time so that user is notified after sale in time Maintainer is keeped in repair, it is to avoid the accident such as burning that air-conditioner causes because of secondary refrigerant leakage, blast, is effectively guaranteed air-conditioning The safety of device operation, improves the satisfaction that user uses, meanwhile, secondary refrigerant leakage failure can be shown simultaneously in a variety of forms, Play a part of multi cue, in order to avoid user does not have found secondary refrigerant leakage fault message in time and there is potential safety hazard, further carry The safety and reliability that high air-conditioner is used, improves the satisfaction that user uses.

In one embodiment of the invention, it is preferable that the first preset duration t1, wherein 1 minute≤t1≤10 minute；The Two preset durations t2, wherein 2 minutes≤t2≤10 minute；3rd preset duration t3, wherein 2 minutes≤t3≤5 minute；4th is pre- If duration t4, wherein 50 minutes≤t4≤100 minute；5th preset duration t5, wherein 3 minutes≤t4≤10 minute；First is pre- If temperature difference A1, wherein 5 DEG C≤A1≤15 DEG C；Second preset temperature difference A2, wherein 5 DEG C≤A2≤15 DEG C；3rd preset temperature Difference A3, wherein 0.5 DEG C≤A3≤3 DEG C；4th preset temperature difference A4, wherein 1 DEG C≤A4≤5 DEG C；First preset times D1, wherein 3≤D1≤10；Second preset times D2, wherein 2≤D2≤5；3rd preset times D3, wherein 2≤D2≤4.

In this embodiment, when the first preset duration t1, the second preset duration t2, the 3rd preset duration t3, the 4th preset It is long t4, the 5th preset duration t5, the first preset temperature difference A1, the second preset temperature difference A2, the 3rd preset temperature difference A3, the 4th pre- If temperature difference A4, the first preset times D1, the second preset times D2, the scope of the 3rd preset times D3, are effectively guaranteed cold Matchmaker's leakage detection method in time, accurately, delicately can detect whether coolant occurs to reveal, and notify to use accurately and in time Family so that the motion of compressor is reasonable, it is ensured that the service life of compressor, while ensure that good refrigeration, saves The energy, improves the utilization rate of coolant, improves the satisfaction that user uses.

In one embodiment of the invention, it is preferable that the first preset duration t1 is 2 minutes；Second preset duration t2 is 3 Minute；3rd preset duration t3 is 3 minutes；4th preset duration t4 is 60 minutes；5th preset duration t5 is 5 minutes；First Preset temperature difference A1 is 10 DEG C；Second preset temperature difference A2 is 10 DEG C；3rd preset temperature difference A3 is 1 DEG C；4th preset temperature Difference A4 is 2 DEG C；First preset times D1 are 3；Second preset times D2 are 2；3rd preset times D3 are 2.

In this embodiment, under air-conditioner refrigeration mode or dehumidification mode, during air-conditioner continuous service 2 minutes, judge Whether △ T1=T1-T2 are more than or equal to 10 DEG C, if so, then judge △ T1=T1- again in air-conditioner continuous service 3 minutes Whether T2 is more than or equal to 10 DEG C, and if so, then judge △ T=whether less than or equal to 1 DEG C, if so, | △ T1- △ T2 | illustrate that coolant is let out Secondary refrigerant leakage times N is added 1 by dew, if the initial value of N is 0, is now recorded as N=1, if it is not, when starting timing and being recorded as Between tt, wherein the initial value of tt be 0, while record tt be initial value when indoor heat exchanger temperature T2, be recorded as T2 (0), record The accumulated running time tl of compressor, when tl=60 minutes, judges whether indoor inlet temperature T1 is default more than or equal to first Temperature value B, if so, then restarts timing and is recorded as time tt, indoor heat exchanger temperature T2 when record tt is initial value, note The accumulated running time tl of record compressor, if it is not, indoor heat exchanger temperature T2 during record tl=60 minutes, judges △ T22=T2 Whether (i)-T2 (0) is less than 2 DEG C, and if so, compressor shutdown was restarted after 3 minutes, and rejudged whether compressor is startup State, if it is not, then restart timing and be recorded as time tt, indoor heat exchanger temperature T2 when record tt is initial value, record The accumulated running time tl of compressor.By whether judging N equal to 3, if it is, explanation secondary refrigerant leakage is serious, air-conditioner is shut down, Indoor fan shows secondary refrigerant leakage failure, according to secondary refrigerant leakage failure, user notifies that after-sale service personnel are keeped in repair in time, keeps away Exempt from the danger that secondary refrigerant leakage occurs explosion and burning, be effectively guaranteed air-conditioner reliability of operation and safety, meanwhile, The service life of compressor is ensure that, the satisfaction that user uses is improved；Further, as N=2, compressor shutdown 3 minutes Restart, while inner blower rotating speed is reduced to low wind operation (if current setting speed is low wind rotating speed by current setting speed It is still low wind that then the rotating speed of indoor fan is constant), and return rejudges whether compressor is starting state, further, works as N When=2, compressor shutdown is restarted for 3 minutes, while inner blower rotating speed is reduced to low wind operation by current setting speed and enters one After whether step detection coolant is revealed, if N<3, then the low wind operation of indoor fan switched to setting speed operation after 5 minutes, and started meter When and the time of being recorded as tt, record tt be initial value when indoor heat exchanger temperature T2, the accumulated running time tl of recording compressed machine, Whether real-time detecting system there is secondary refrigerant leakage.Inspection of the secondary refrigerant leakage detection method in the present invention to coolant leakage in air-conditioner Survey sensitivity high, can detect during coolant leakage 20%-30% in air-conditioner, efficiently avoid compressor blast and The accident of burning occurs, it is ensured that the safety of product operation, while improve the service life of compressor.Further, lead to Excess temperature sensor detects T1, T2, as the application is to the difference of T1 and T2 does not judge in the same time, even if temperature sensing The detected value of device has deviation, but the difference of the two sensor detected values does not have deviation, efficiently avoid because of temperature sensor The detection error of itself causes the erroneous judgement of coolant leakage, further increases the accuracy of secondary refrigerant leakage detection method and sensitive Degree, improves the satisfaction that user uses.Further, with environmental requirement more and more higher, coolant is that the environmental protection such as R32, R290 is cold Matchmaker.

As shown in Figure 2 a, a kind of embodiment according to the second aspect of the invention, it is also proposed that the inspection that air-conditioner coolant is revealed Examining system 200, air-conditioner include compressor, indoor fan and indoor heat exchanger, and the detecting system that air-conditioner coolant is revealed includes： Detector unit 202, is powered for air-conditioner after starting shooting, detects the present mode of operation of air-conditioner；First judging unit 204, uses In judging whether present mode of operation is refrigeration mode or dehumidification mode；First performance element 206, for when the first judging unit Judged result, when being, to record secondary refrigerant leakage cumulative number N, and detect the current operating state of compressor；Second judges single Unit, for judging whether current operating state is starting state；Second performance element, ties for the judgement when the second judging unit Fruit for be when, recording compressed machine this start operating time ti, indoor inlet temperature T1, indoor heat exchanger temperature T2, pressure When the operating time ti of contracting machine reaches the first preset duration t1, start the 3rd judging unit；3rd judging unit, for judging △ Whether T1=T1-T2 is more than or equal to the first preset temperature difference A1, reaches the second preset duration t2 in the operating time ti of compressor When, judge △ T2=T1-T2 whether more than or equal to the second preset temperature difference A2；3rd performance element, for judging single the 3rd The judged result of unit is when being, starts the 4th judging unit；4th judging unit, for judging △ T=, | △ T1- △ T2 | are It is no to be less than or equal to the 3rd preset temperature difference A3；4th performance element, for when the judged result of the 4th judging unit is to be, inciting somebody to action The secondary refrigerant leakage cumulative number N for being recorded adds 1, wherein, the initial value of secondary refrigerant leakage cumulative number N is 0；5th judging unit, For judging whether secondary refrigerant leakage cumulative number N is equal to the first preset times D1；5th performance element, for when the 5th judgement list When the judged result of unit is no, restarts after the 3rd preset duration t3 of compressor shutdown, and return the second judging unit；6th holds Row unit, for when the judged result of the 5th judging unit is to be, control air-conditioner is shut down, control indoor fan shows coolant Reveal failure；Wherein, t1 ＜ t2.

Embodiment according to the second aspect of the invention, it is also proposed that the detecting system that a kind of air-conditioner coolant is revealed, air-conditioning Device includes compressor, indoor fan and indoor heat exchanger, and the detecting system that air-conditioner coolant is revealed includes：Detector unit, is used for Air-conditioner is powered after start, detects the present mode of operation of air-conditioner；First judging unit, for judging that present mode of operation is It is no for refrigeration mode or dehumidification mode；First performance element, for when the judged result of the first judging unit is to be, recording cold Matchmaker reveals cumulative number N, and detects the current operating state of compressor；Second judging unit, for judging current operating state Whether it is starting state；Second performance element, for when the judged result of the second judging unit for be when, recording compressed machine this The operating time ti of startup, indoor inlet temperature T1, indoor heat exchanger temperature T2 reach first in the operating time ti of compressor During preset duration t1, start the 3rd judging unit；3rd judging unit, for judging △ T1=T1-T2 whether more than or equal to the One preset temperature difference A1, when the operating time ti of compressor reaches the second preset duration t2, judges whether △ T2=T1-T2 are big In equal to the second preset temperature difference A2；3rd performance element, for the judged result of the 3rd judging unit be when, start 4th judging unit；4th judging unit, for judging △ T=, whether | △ T1- △ T2 | are poor less than or equal to the 3rd preset temperature A3；4th performance element, for when the judged result of the 4th judging unit is to be, by the secondary refrigerant leakage cumulative number for being recorded N adds 1, wherein, the initial value of secondary refrigerant leakage cumulative number N is 0；5th judging unit, for judging secondary refrigerant leakage cumulative number N Whether the first preset times D1 are equal to；5th performance element, for when the 5th judging unit judged result for it is no when, compressor Restart after shutting down the 3rd preset duration t3, and return the second judging unit；6th performance element, for when the 5th judging unit Judged result for be when, control air-conditioner shut down, control indoor fan show secondary refrigerant leakage failure；Wherein, t1 ＜ t2.

The detecting system 200 that the air-conditioner coolant that the embodiment of second aspect present invention is provided is revealed, by detector unit 202, after air-conditioner is powered start, detect the present mode of operation of air-conditioner, and the first judging unit 204 judges currently to run mould Whether formula is refrigeration mode or dehumidification mode, the judged result feelings that are yes of first performance element 206 in the first judging unit 204 Under condition, the cumulative number N of secondary refrigerant leakage is recorded, and the wherein initial value of N is 0, and detects the working condition of compressor, and second judges Unit 208 judges that whether compressor is starting state, and the second performance element 210 in the judged result of the second judging unit 208 is When being, recording compressed machine this start operating time ti, indoor inlet temperature T1, indoor heat exchanger temperature T2, and compression When the operating time ti of machine reaches the first preset duration t1, start the 3rd judging unit 212, the 3rd judging unit 212 judges △ Whether T1=T1-T2 is more than or equal to the first preset temperature difference A1, reaches the second preset duration t2 in the operating time ti of compressor When, whether △ T2=T1-T2 are judged more than or equal to the second preset temperature difference A2, the 3rd performance element 214 is in the 3rd judging unit 212 judged result is when being, the 4th judging unit 216 of startup, the 4th judging unit 216, for judging △ T=| △ T1- △ T2 | whether A3 poor less than or equal to the 3rd preset temperature, judged result of the 4th performance element 218 in the 4th judging unit 216 During to be, illustrate that coolant refrigeration effect is not excellent, secondary refrigerant leakage cumulative number N is added 1, the 5th judging unit 220 judges coolant Reveal whether cumulative number N is equal to the first preset times D1, the 6th performance element 224 is yes in the judged result of Unit the 5th When, secondary refrigerant leakage is illustrated, control air-conditioner is shut down, and indoor fan shows secondary refrigerant leakage failure, efficiently avoid secondary refrigerant leakage Compressor exhaust temperature rises the very fast service life for reducing compressor, serves definitely protection and suggesting effect, while keeping away Exempt from the danger of burning that secondary refrigerant leakage causes and blast, be effectively improved the safety and reliability of air-conditioner operation, together When, when the judged result of the 5th judging unit 220 is no, when the control compressor shutdown the 3rd of the 5th performance element 222 is default Restart after long t3, and rejudge whether the current operating state of compressor is starting state, can press in air-conditioner start Contracting machine start and running in long-term detection coolant whether reveal, it is to avoid just start operation period coolant can only be detected whether The detection revealed and whether cannot reveal to coolant in air-conditioner running, further ensures the safety of air-conditioner operation Property, and it is effectively guaranteed the service life of compressor；Judge to enter in the first preset duration t1 room by the 4th judging unit 216 Inlet temperature T1 and indoor heat exchanger in room when the difference and the second preset duration t2 of air temperature T1 and indoor heat exchanger temperature T2 Difference between the difference of temperature T2 determining secondary refrigerant leakage cumulative number, i.e., by judge the temperature gap at two moment with it is pre- If the relation of temperature gap determining whether coolant is revealed, is efficiently avoid by solely judging temperature determining coolant It is no leakage and the testing result of secondary refrigerant leakage is affected as temperature detection has differences, be effectively guaranteed coolant detection standard Really property, susceptiveness and effectiveness, further ensure the safety and reliability of product work, improve the satisfaction that user uses Degree.

In one embodiment of the invention, it is preferable that also include：7th performance element 226, for judging single the 3rd When the judged result of unit 212 is no, starts timing and be simultaneously recorded as time tt, wherein the initial value of tt is 0, while it is first to record tt Indoor heat exchanger temperature T2 during initial value, is recorded as T2 (0), the accumulated running time tl of recording compressed machine, and in the tired of compressor After meter run time tl reaches the 4th preset duration t4, start the 6th judging unit 228；6th judging unit 228, for judging Whether indoor inlet temperature T1 is more than or equal to the first preset temperature value B；8th performance element 230, in the 6th judging unit When 228 judged result is to be, the 7th performance element 226 is returned；9th performance element 232, in the 6th judging unit 228 Judged result for it is no when, indoor heat exchanger temperature when the accumulated running time tl of recording compressed machine reaches four preset durations t4 T2, is recorded as T2 (i)；7th judging unit 234, for judging △ T22=T2 (i)-T2 (0) whether less than the 4th preset temperature Difference A4；Tenth performance element 236, for when the judged result of the 7th judging unit 234 is to be, being back to the 5th performance element 222, when the judged result of the 7th judging unit 234 is no, it is back to the 7th performance element 226.

In this embodiment, by the judged result in the 3rd judging unit 212 for it is no when, the 7th performance element 226 is opened Beginning timing is simultaneously recorded as time tt, and wherein the initial value of tt is 0, while indoor heat exchanger temperature T2 when tt is initial value is recorded, T2 (0), the accumulated running time tl of recording compressed machine are recorded as, and are preset when the accumulated running time tl of compressor reaches the 4th After duration t4, start the 6th judging unit 228, the 6th judging unit 228 judges indoor inlet temperature T1 whether more than or equal to the One preset temperature value B, if so, illustrates the risk that temporarily there is no secondary refrigerant leakage in air-conditioner system, the 8th performance element 230 7th performance element 226 is back to then, reclocking is simultaneously recorded as time tt, indoor heat exchanger temperature when record tt is initial value T2, the accumulated running time tl of recording compressed machine, continue to detect system, the leakage feelings of the detection coolant of real-time, circulation Condition, further improves air-conditioner reliability of operation and safety, improves the satisfaction that user uses；When the 6th judging unit When 228 judged result is no, illustrates that the refrigeration of coolant is undesirable, there is secondary refrigerant leakage, the 9th performs list Indoor heat exchanger temperature T2 when the accumulated running time tl of first 232 recording compressed machines reaches four preset durations t4, is recorded as T2 I whether (), the 7th judging unit 234 judge △ T22=T2 (i)-T2 (0) less than the 4th preset temperature difference A4；Tenth performs list Unit 236 is yes in the judged result of the 7th judging unit 234, is back to the 5th performance element 222, whether determines whether coolant Reveal, the risk that secondary refrigerant leakage causes compressor to burn occur to avoid continuous operation in not stopping process, be effectively improved The service life of compressor, while ensure that the safety and reliability of air-conditioner operation, improves the satisfaction that user uses； The judged result of the 7th judging unit 234 is no, the risk that temporarily there is no secondary refrigerant leakage in illustrating air-conditioner system, is back to 7th performance element 226, is circulated to secondary refrigerant leakage, real-time detection, further improves air-conditioner reliability of operation and peace Quan Xing, improves the satisfaction that user uses.

In one embodiment of the invention, it is preferable that also include：8th judging unit 238, for judging secondary refrigerant leakage Whether cumulative number N is equal to the second preset times D2, wherein D2 ＜ D1；11st performance element 240, for judging single the 8th When the judged result of unit 238 is to be, indoor fan is converted to into low wind rotating speed operation by setting speed operation.

In this embodiment, judge whether secondary refrigerant leakage cumulative number N is default equal to second by the 8th judging unit 238 Number of times D2, wherein D2 ＜ D1, the 11st performance element 240 the 8th judging unit 238 judged result for be when, by indoor wind Machine is converted to low wind rotating speed operation by setting speed operation, by the rotating speed for reducing indoor fan, reduces air output, reduces indoor Side air-out temperature, is effectively improved the refrigeration of air-conditioner, and then ensures good refrigeration, improve what user used Satisfaction.

In one embodiment of the invention, it is preferable that also include：11st performance element 240, is additionally operable to record the 8th The specific cumulative number M that the judged result of judging unit 238 is yes；9th judging unit 242, for judging specific cumulative number Whether M is equal to the 3rd preset times D3；12nd performance element 244, is yes for the judged result when the 9th judging unit 242 When, indoor fan is run after the 5th preset duration t5 by low wind rotating speed, is converted to setting speed operation, and is started the 7th and perform list Unit 226.

In one embodiment of the invention, secondary refrigerant leakage cumulative number N is equal to into the by the 11st performance element 240 The number of times of two preset times D2 is recorded as specific cumulative number M, and the 12nd performance element 244 of the 9th judging unit 242 is the 9th The judged result of judging unit 242 is for, when being, the coolant situation in explanation system is very stable, there is no disclosure risk, by interior Blower fan is run after the 5th preset duration t5 by low wind rotating speed, is converted to setting speed operation, default the 5th by indoor fan Run with low wind rotating speed in duration t5, and start the 7th performance element 226, significantly reduced air output, reduce out pathogenic wind-warm Degree, and then good refrigeration is ensure that, and after the 5th preset duration t5, indoor fan is converted to into setting speed fortune OK, and start the 7th performance element 226, the secondary refrigerant leakage in system is circulated, real-time detection, further improve air-conditioner Reliability of operation and safety, improve the satisfaction that user uses.

As shown in Figure 2 b, in one embodiment of the invention, it is preferable that the 3rd judging unit 212 also includes：First opens Moving cell 2121, for when the operating time ti of compressor reaches the first preset duration t1, starting the first temperature difference judging unit 2122；First temperature difference judging unit 2122, for judging △ T1=T1-T2 whether more than or equal to the first preset temperature difference A1；The Two start units 2123, for when the judged result of the first temperature difference judging unit 2122 is to be, in the operating time of compressor When ti reaches the second preset duration t2, start the second temperature difference judging unit 2124, in the judgement of the first temperature difference judging unit 2122 When being as a result no, start the 7th performance element 226；Second temperature difference judging unit 2124, for judging whether △ T2=T1-T2 are big In equal to the second preset temperature difference A2；3rd start unit 2125, for when the judged result of the second temperature difference judging unit 2124 During to be, starting the 4th judging unit 216, when the judged result of the second temperature difference judging unit 2124 is no, starting the 7th and holding Row unit 226.

In one embodiment of the invention, is reached in the operating time ti of compressor by the first start unit 2121 During one preset duration t1, start the first temperature difference judging unit 2122, the first temperature difference judging unit 2122 judges that △ T1=T1-T2 are No to be more than or equal to the first preset temperature difference A1, the second start unit 2123 in the judged result of the first temperature difference judging unit 2122 is When no, the risk that the refrigeration of air-conditioner system is excellent, there is no secondary refrigerant leakage is illustrated, start the 7th performance element 226, it is right Secondary refrigerant leakage in system is circulated, real-time detection, further improves air-conditioner reliability of operation and safety, improves and use The satisfaction that family uses；Second start unit 2123 is being compressed when the judged result of the first temperature difference judging unit 2122 is to be When the operating time ti of machine reaches the second preset duration t2, start the second temperature difference judging unit 2124, judged by second temperature difference Whether unit 2124 determines whether △ T2=T1-T2 more than or equal to the second preset temperature difference A2, and the 3rd start unit 2125 exists The judged result of the second temperature difference judging unit 2124 is the wind that when being, illustrates air-conditioner system there is a strong possibility to there is secondary refrigerant leakage Danger, in order to avoid reducing the service life of compressor, while in order to avoid air-conditioner has burning and hidden peril of explosion, starting the 4th Judging unit 216, carries out concrete, detailed detection and judgement to the secondary refrigerant leakage in system, and then obtains with the presence or absence of coolant The accurate testing result revealed, further ensures the safety and reliability of air-conditioner operation, improves the satisfaction that user uses Degree, while ensure that probability that is long-term in compressor operating process, detecting secondary refrigerant leakage in real time, further ensures product The safety of product, improves the satisfaction that user uses.Judgement of 3rd start unit 2125 in the second temperature difference judging unit 2124 When being as a result no, illustrate that the refrigeration in air-conditioner system is very stable, less, cold medium flux is very stable for difference variation, and then There is no the risk of secondary refrigerant leakage in illustrating air-conditioner system, start the 7th performance element 226, the secondary refrigerant leakage in system is entered Row circulation, real-time detection, further improve air-conditioner reliability of operation and safety, improve the satisfaction that user uses.

In one embodiment of the invention, it is preferable that the 4th performance element 218, it is additionally operable to when the 4th judging unit 216 Judged result for it is no when, start the 7th performance element 226.

In this embodiment, the 4th performance element 218 is additionally operable to when the judged result of the 4th judging unit 216 is no, Start the 7th performance element 226, the secondary refrigerant leakage in system is circulated, real-time detection, further improve air-conditioner operation Reliability and safety, improve the satisfaction that uses of user.

In one embodiment of the invention, it is preferable that the first performance element 206, it is additionally operable to when the first judging unit 204 Judged result for it is no when, return the first judging unit 204.

In this embodiment, the first performance element 206 is additionally operable to when the judged result of the first judging unit 204 is no, Return the first judging unit 204 to rejudge so that air-conditioner is in the hotter situation of refrigeration mode or dehumidification mode external environment Under, the situation of real-time detection secondary refrigerant leakage, in case the delivery temperature of secondary refrigerant leakage compressor rises very fast, impact refrigeration, Avoid secondary refrigerant leakage to reduce the service life of compressor or burn out compressor simultaneously, be effectively guaranteed well refrigeration effect Really, and reliability and the safety of compressor are ensure that, while ensure that the safety of air-conditioner work, improves what user used Satisfaction.

In one embodiment of the invention, it is preferable that the control indoor fan of the 6th performance element 224 shows secondary refrigerant leakage The mode of failure is at least one of or its combination：Audio frequency, video, light, picture and text.

In this embodiment, the 6th performance element 224 controls indoor fan and shows that the mode of secondary refrigerant leakage failure is following At least one or its combination but not limited to this：Audio frequency, video, light, picture and text, various display formats of secondary refrigerant leakage failure can Meet different user, the demand of different air-conditioners, it is applied widely, user's secondary refrigerant leakage can be reminded accurately and in time, made User notifies that after-sales service personnel are keeped in repair in time, it is to avoid the thing such as burning that air-conditioner causes because of secondary refrigerant leakage, blast Therefore, the safety of air-conditioner operation is effectively guaranteed, the satisfaction that uses of user is improved, meanwhile, secondary refrigerant leakage failure can be with Show in a variety of forms simultaneously, play a part of multi cue, in case user does not have found secondary refrigerant leakage fault message in time and deposits In potential safety hazard, the safety and reliability that air-conditioner is used further is improved, the satisfaction that user uses is improved.

In one embodiment of the invention, it is preferable that the first preset duration t1, wherein 2 minutes≤t1≤10 minute；The Two preset durations t2, wherein 3 minutes≤t2≤10 minute；3rd preset duration t3, wherein 2 minutes≤t3≤5 minute；4th is pre- If duration t4, wherein 50 minutes≤t4≤100 minute；5th preset duration t5, wherein 3 minutes≤t4≤10 minute；First is pre- If temperature difference A1, wherein 5 DEG C≤A1≤15 DEG C；Second preset temperature difference A2, wherein 5 DEG C≤A2≤15 DEG C；State the 3rd default temperature Degree difference A3, wherein 0.5 DEG C≤A3≤3 DEG C；4th preset temperature difference A4, wherein 1 DEG C≤A4≤5 DEG C；First preset times D1, its In 3≤D1≤10；Second preset times D2, wherein 2≤D2≤5；3rd preset times D3, wherein 2≤D2≤4.

In one embodiment of the invention, it is preferable that the first preset duration t1 is 5 minutes；Second preset duration t2 is 8 Minute；3rd preset duration t3 is 3 minutes；4th preset duration t4 is 60 minutes；5th preset duration t5 is 5 minutes；First Preset temperature difference A1 is 10 DEG C；Second preset temperature difference A2 is 10 DEG C；3rd preset temperature difference A3 is 1 DEG C；4th preset temperature Difference A4 is 2 DEG C；First preset times D1 are 3；Second preset times D2 are 2；3rd preset times D3 are 2.

In this embodiment, under air-conditioner refrigeration mode or dehumidification mode, during air-conditioner continuous service 2 minutes, judge Whether △ T1=T1-T2 are more than or equal to 10 DEG C, if so, then judge △ T1=T1- again in air-conditioner continuous service 3 minutes Whether T2 is more than or equal to 10 DEG C, and if so, then judge △ T=whether less than or equal to 1 DEG C, if so, | △ T1- △ T2 | illustrate that coolant is let out Secondary refrigerant leakage times N is added 1 by dew, if the initial value of N is 0, is now recorded as N=1, if it is not, when starting timing and being recorded as Between tt, wherein the initial value of tt be 0, while record tt be initial value when indoor heat exchanger temperature T2, be recorded as T2 (0), record The accumulated running time tl of compressor, when tl=60 minutes, judges whether indoor inlet temperature T1 is default more than or equal to first Temperature value B, if so, then restarts timing and is recorded as time tt, indoor heat exchanger temperature T2 when record tt is initial value, note The accumulated running time tl of record compressor, if it is not, indoor heat exchanger temperature T2 during record tl=60 minutes, judges △ T22=T2 Whether (i)-T2 (0) is less than 2 DEG C, and if so, compressor shutdown was restarted after 3 minutes, and rejudged whether compressor is startup State, if it is not, then restart timing and be recorded as time tt, indoor heat exchanger temperature T2 when record tt is initial value, record The accumulated running time tl of compressor.By whether judging N equal to 3, if it is, explanation secondary refrigerant leakage is serious, the row of compressor Temperature degree is begun to ramp up soon, affects the service life of compressor, therefore air-conditioner is shut down, and indoor fan shows that coolant is let out Dew failure, according to secondary refrigerant leakage failure, user notifies that after-sale service personnel are keeped in repair in time, it is to avoid secondary refrigerant leakage occurs quick-fried Danger that is broken and burning, is effectively guaranteed air-conditioner reliability of operation and safety, while avoiding compressor air-discharging temperature Spend rapid increase and affect the service life of compressor, it is ensured that the service life of compressor, improve the satisfaction that user uses； Further, as N=2, compressor shutdown is restarted for 3 minutes, at the same inner blower rotating speed be reduced to by current setting speed it is low Wind runs (it is still low wind that the rotating speed of indoor fan is constant if current setting speed is low wind rotating speed), and return is rejudged Whether compressor is starting state, and further, as N=2, compressor shutdown is restarted for 3 minutes, at the same inner blower rotating speed by After current setting speed is reduced to the operation of low wind and further detects whether coolant is revealed, if N<3, then the low wind operation of indoor fan Switch to setting speed operation after 5 minutes, and start timing and be recorded as time tt, indoor heat exchanger temperature when record tt is initial value Degree T2, whether the accumulated running time tl of recording compressed machine, real-time detecting system 200 there is secondary refrigerant leakage.It is cold in the present invention Matchmaker's leakage detection method is high to the detection sensitivity of coolant leakage in air-conditioner, in air-conditioner during coolant leakage 20%-30% Can detect, efficiently avoid compressor blast and the accident burnt occurs, it is ensured that the safety of product operation, together When improve the service life of compressor.Further, T1, T2 are detected by temperature sensor, as the application is to difference The moment difference of T1 and T2 judged, though the detected value of temperature sensor has a deviation, but the two sensor detected values Difference does not have deviation, and efficiently avoid causes the erroneous judgement of coolant leakage because of the detection error of temperature sensor itself, further Accuracy and the sensitivity of secondary refrigerant leakage detection method are improve, the satisfaction that user uses is improved.Further, with environmental protection More and more higher is required, coolant is the environmentally friendly coolant such as R32, R290.

Embodiment in accordance with a further aspect of the present invention, it is also proposed that a kind of air-conditioner 300, including any of the above-described technical scheme Air-conditioner coolant reveal detecting system 200.

The air-conditioner 300 that the embodiment of further aspect of the present invention is provided, because of the air-conditioner including any of the above-described technical scheme The detecting system 200 of secondary refrigerant leakage, thus possess the detecting system of the leakage of the air-conditioner coolant described in any of the above-described technical scheme 200 whole beneficial effects, will not be described here.

In the present invention, term " multiple " then refers to two or more, unless otherwise clearly restriction.Term " peace The term such as dress ", " being connected ", " connection ", " fixation " all should be interpreted broadly, and for example, " connection " can be fixedly connected, it is also possible to It is to be detachably connected, or is integrally connected；" being connected " can be joined directly together, it is also possible to be indirectly connected to by intermediary.It is right For one of ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.

In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc. Mean that the specific features, structure, material or the feature that describe with reference to the embodiment or example are contained in of the invention at least one real Apply in example or example.In this manual, identical embodiment or reality are not necessarily referring to the schematic representation of above-mentioned term Example.And, the specific features of description, structure, material or feature can in one or more any embodiment or example with Suitable mode is combined.

The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair Change, equivalent, improvement etc., should be included within the scope of the present invention.

Claims

1. the detection method that a kind of air-conditioner coolant is revealed, the air-conditioner include compressor, indoor fan and indoor heat exchanger, Characterized in that, the detection method that the air-conditioner coolant is revealed includes：

Step S102, the air-conditioner are powered after start, detect the present mode of operation of the air-conditioner；

Step S104, judges whether the present mode of operation is refrigeration mode or dehumidification mode；

When the judged result of step S104 is to be, into step S106；

Step S106, records secondary refrigerant leakage cumulative number N, and detects the current operating state of the compressor；

Step S108, judges whether the current operating state is starting state；

When the judged result of step S108 is to be, into step S110；

Step S110, records the operating time ti of this startup of the compressor, indoor inlet temperature T1, the room Interior heat exchange temperature T2；

Step S112, when the operating time ti of the compressor reaches the first preset duration t1, judges △ T1=T1-T2 Whether be more than or equal to the first preset temperature difference A1, the second preset duration t2 is reached in the operating time ti of the compressor When, judge △ T2=T1-T2 whether more than or equal to the second preset temperature difference A2；

When the judged result of step S112 is is, into step S114；

When the judged result of step S114 is to be, into step S116；

The secondary refrigerant leakage cumulative number N is added 1 by step S116, wherein, the secondary refrigerant leakage cumulative number N's Initial value is 0；

Step S118, judges whether the secondary refrigerant leakage cumulative number N is equal to the first preset times D1；

When the judged result of step S118 is no, into step S120；

Step S120, restarts after the 3rd preset duration t3 of the compressor shutdown, and returns step S108；

When the judged result of step S118 is to be, into step S122；

Step S122, the air-conditioner are shut down, and the indoor fan shows secondary refrigerant leakage failure；

Wherein, t1 ＜ t2.

2. the detection method that air-conditioner coolant according to claim 1 is revealed, it is characterised in that also include：

When the judged result of step S112 is no, into step S124；

Step S124, starts timing and is recorded as time tt, and wherein the initial value of tt is 0, while it is initial value to record tt Shi Suoshu indoor heat exchanger temperature T2, is recorded as T2 (0), records the accumulated running time tl of the compressor；

Step S126, after the accumulated running time tl of the compressor reaches four preset durations t4, judges that the interior is entered Whether air temperature T1 is more than or equal to the first preset temperature value B；

When the judged result of step S126 is to be, step S124 is returned, when the judged result of step S126 For it is no when, into step S128；

Step S128, the accumulated running time tl for recording the compressor reach room during four preset duration t4 Interior heat exchange temperature T2, is recorded as T2 (i)；

When the judged result of step S130 is to be, step S120 is returned；When the judged result of step S130 For it is no when, return step S124.

3. the detection method that air-conditioner coolant according to claim 2 is revealed, it is characterised in that step S118 it Also include afterwards：

Step S1182, judges whether the secondary refrigerant leakage cumulative number N is equal to the second preset times D2, wherein D2 ＜ D1；

When the judged result of step S1182 is to be, into step S1184；

The indoor fan is converted to low wind rotating speed operation by setting speed operation by step S1184.

4. the detection method that air-conditioner coolant according to claim 3 is revealed, it is characterised in that also include：

Step S1184, the specific cumulative number M for being also yes including the judged result for recording step S1182；

Step S1186, judges whether the specific cumulative number M is equal to the 3rd preset times D3；

When the judged result of step S1186 is to be, into step S1188；

Step S1188, the indoor fan are run after the 5th preset duration t5 by the low wind rotating speed, are converted to described setting Determine rotating speed operation, and enter step S124.

5. the detection method that air-conditioner coolant according to claim 1 is revealed, it is characterised in that step S112 is concrete Including：

Step S1122, when the operating time ti of the compressor reaches the first preset duration t1, judges △ T1=T1- Whether T2 is more than or equal to the first preset temperature difference A1；

When the judged result of step S1122 is to be, into step S1124, when the judged result of step S1122 is When no, into step S124；

Step S1124, when the operating time ti of the compressor reaches the second preset duration t2, judges △ T2= Whether T1-T2 is more than or equal to the second preset temperature difference A2；

When the judged result of step S1124 is to be, into step S114, when the judgement of step S1124 is tied When fruit is no, into step S124.

6. the detection method that air-conditioner coolant according to claim 1 is revealed, it is characterised in that also include：

When the judged result of step S114 is no, into step S124.

7. the detection method that air-conditioner coolant according to claim 1 is revealed, it is characterised in that also include：

When the judged result of step S104 is no, step S104 is returned.

8. the detection method that the air-conditioner coolant according to any one of claim 1-5 is revealed, it is characterised in that

First preset duration, second preset duration, the 3rd preset duration, the 4th preset duration are following At least one：The parameter relationship formula or fixed value of the air-conditioner, wherein the parameter of the air-conditioner be at least one of or Its combination：The compressor frequency or speed, the indoor fan rotating speed, indoor inlet temperature T1, the indoor heat exchange Device temperature T2.

9. the detection method that air-conditioner coolant according to claim 1 is revealed, it is characterised in that the indoor fan shows The mode of secondary refrigerant leakage failure is at least one of or its combination：

Audio frequency, video, light, picture and text.

10. the detection method that air-conditioner coolant according to any one of claim 1 to 5 is revealed, it is characterised in that

First preset duration t1, wherein 1 minute≤t1≤10 minute；

Second preset duration t2, wherein 2 minutes≤t2≤10 minute；

3rd preset duration t3, wherein 2 minutes≤t3≤5 minute；

4th preset duration t4, wherein 50 minutes≤t4≤100 minute；

5th preset duration t5, wherein 3 minutes≤t4≤10 minute；

The first preset temperature difference A1, wherein 5 DEG C≤A1≤15 DEG C；

The second preset temperature difference A2, wherein 5 DEG C≤A2≤15 DEG C；

The 3rd preset temperature difference A3, wherein 0.5 DEG C≤A3≤3 DEG C；

The 4th preset temperature difference A4, wherein 1 DEG C≤A4≤5 DEG C；

First preset times D1, wherein 3≤D1≤10；

Second preset times D2, wherein 2≤D2≤5；

3rd preset times D3, wherein 2≤D2≤4.

The detection method that 11. air-conditioner coolants according to any one of claim 1 to 5 are revealed, it is characterised in that

First preset duration t1 is 2 minutes；

Second preset duration t2 is 3 minutes；

3rd preset duration t3 is 3 minutes；

4th preset duration t4 is 60 minutes；

5th preset duration t5 is 5 minutes；

The first preset temperature difference A1 is 10 DEG C；

The second preset temperature difference A2 is 10 DEG C；

The 3rd preset temperature difference A3 is 1 DEG C；

The 4th preset temperature difference A4 is 2 DEG C；

First preset times D1 are 3；

Second preset times D2 are 2；

3rd preset times D3 are 2.

The detecting system that a kind of 12. air-conditioner coolants are revealed, the air-conditioner include compressor, indoor fan and indoor heat exchange Device, it is characterised in that the detecting system that the air-conditioner coolant is revealed includes：

Detector unit, is powered for the air-conditioner after starting shooting, detects the present mode of operation of the air-conditioner；

First judging unit, for judging whether the present mode of operation is refrigeration mode or dehumidification mode；

First performance element, for when the judged result of first judging unit is to be, recording secondary refrigerant leakage cumulative number N, and detect the current operating state of the compressor；

Second judging unit, for judging whether the current operating state is starting state；

Second performance element, for when the judged result of second judging unit is to be, this opens to record the compressor Dynamic operating time ti, indoor inlet temperature T1, indoor heat exchanger temperature T2, in the work of the compressor When duration ti reaches the first preset duration t1, start the 3rd judging unit；

3rd judging unit, for whether judging △ T1=T1-T2 more than or equal to the first preset temperature difference A1, in the pressure When the operating time ti of contracting machine reaches the second preset duration t2, judge whether △ T2=T1-T2 are default more than or equal to second Temperature difference A2；

3rd performance element, for the judged result of the 3rd judging unit be when, start the 4th judging unit；

4th judging unit, | △ T1- △ T2 | the whether A3s poor less than or equal to the 3rd preset temperature for judging △ T=；

4th performance element, for when the judged result of the 4th judging unit is to be, the coolant for being recorded being let out Dew cumulative number N adds 1, wherein, the initial value of the secondary refrigerant leakage cumulative number N is 0；

5th judging unit, for judging whether the secondary refrigerant leakage cumulative number N is equal to the first preset times D1；

5th performance element, for when the judged result of the 5th judging unit is no, the compressor shutdown the 3rd is pre- If restarting after duration t3, and return second judging unit；

6th performance element, for when the judged result of the 5th judging unit is to be, controlling the air-conditioner and shutting down, control Make the indoor fan and show secondary refrigerant leakage failure；

Wherein, t1 ＜ t2.

The detecting system that 13. air-conditioner coolants according to claim 12 are revealed, it is characterised in that also include：

7th performance element, for the judged result in the 3rd judging unit for it is no when, start timing and be simultaneously recorded as the time The initial value of tt, wherein tt is 0, while recording indoor heat exchanger temperature T2 when tt is initial value, is recorded as T2 (0), remembers The accumulated running time tl of record compressor, and after the accumulated running time tl of the compressor reaches the 4th preset duration t4, Start the 6th judging unit；

6th judging unit, for judging indoor inlet temperature T1 whether more than or equal to the first preset temperature value B；

8th performance element, for when the judged result of the 6th judging unit is to be, returning the 7th performance element；

9th performance element, for the judged result in the 6th judging unit for it is no when, record the accumulative of the compressor Run time tl reaches indoor heat exchanger temperature T2 during four preset duration t4, is recorded as T2 (i)；

7th judging unit, for judging △ T22=T2 (i)-T2 (0) whether less than the 4th preset temperature difference A4；

Tenth performance element, for when the judged result of the 7th judging unit is to be, being back to the described 5th and performing list Unit, when the judged result of the 7th judging unit is no, is back to the 7th performance element.

The detecting system that 14. air-conditioner coolants according to claim 13 are revealed, it is characterised in that also include：

8th judging unit, for judging whether the secondary refrigerant leakage cumulative number N is equal to the second preset times D2, wherein D2 ＜ D1；

11st performance element, for when the judged result of the 8th judging unit is to be, by the indoor fan by setting Determine rotating speed operation and be converted to low wind rotating speed operation.

The detecting system that 15. air-conditioner coolants according to claim 14 are revealed, it is characterised in that also include：

11st performance element, is additionally operable to record the specific cumulative number that the judged result of the 8th judging unit is yes M；

9th judging unit, for judging whether the specific cumulative number M is equal to the 3rd preset times D3；

12nd performance element, for when the judged result of the 9th judging unit is to be, the indoor fan is by described After low wind rotating speed runs the 5th preset duration t5, the setting speed operation is converted to, and starts the 7th performance element.

The detecting system that 16. air-conditioner coolants according to claim 12 are revealed, it is characterised in that the described 3rd judges single Unit also includes：

First start unit, for when the operating time ti of the compressor reaches the first preset duration t1, starts the One temperature difference judging unit；

First temperature difference judging unit, for judging △ T1=T1-T2 whether more than or equal to the first preset temperature difference A1；

Second start unit, for when the judged result of first temperature difference judging unit is to be, in the institute of the compressor When stating operating time ti and reaching the second preset duration t2, start the second temperature difference judging unit, in sentencing for the first temperature difference judging unit When disconnected result is no, start the 7th performance element；

Second temperature difference judging unit, for judging △ T2=T1-T2 whether more than or equal to the second preset temperature difference A2；

3rd start unit, for when the judged result of second temperature difference judging unit is to be, starting the described 4th and judging Unit, when the judged result of second temperature difference judging unit is no, starts the 7th performance element.

The detecting system that 17. air-conditioner coolants according to claim 12 are revealed, it is characterised in that

4th performance element, is additionally operable to, when the judged result of the 4th judging unit is no, start the described 7th and hold Row unit.

The detecting system that 18. air-conditioner coolants according to claim 12 are revealed, it is characterised in that

First performance element, is additionally operable to, when the judged result of first judging unit is no, return described first and sentence Disconnected unit.

The detecting system that 19. air-conditioner coolants according to any one of claim 12 to 16 are revealed, it is characterised in that

The detecting system that 20. air-conditioner coolants according to claim 12 are revealed, it is characterised in that the described 6th performs list Unit controls the indoor fan and shows that the mode of secondary refrigerant leakage failure is at least one of or its combination：

Audio frequency, video, light, picture and text.

The detecting system that 21. air-conditioner coolants according to any one of claim 12 to 16 are revealed, it is characterised in that

First preset duration t1, wherein 2 minutes≤t1≤10 minute；

Second preset duration t2, wherein 3 minutes≤t2≤10 minute；

3rd preset duration t3, wherein 2 minutes≤t3≤5 minute；

4th preset duration t4, wherein 50 minutes≤t4≤100 minute；

5th preset duration t5, wherein 3 minutes≤t4≤10 minute；

The first preset temperature difference A1, wherein 5 DEG C≤A1≤15 DEG C；

The second preset temperature difference A2, wherein 5 DEG C≤A2≤15 DEG C；

The 3rd preset temperature difference A3, wherein 0.5 DEG C≤A3≤3 DEG C；

The 4th preset temperature difference A4, wherein 1 DEG C≤A4≤5 DEG C；

First preset times D1, wherein 3≤D1≤10；

Second preset times D2, wherein 2≤D2≤5；

3rd preset times D3, wherein 2≤D2≤4.

The detecting system that 22. air-conditioner coolants according to any one of claim 12 to 16 are revealed, it is characterised in that

First preset duration t1 is 5 minutes；

Second preset duration t2 is 8 minutes；

3rd preset duration t3 is 3 minutes；

4th preset duration t4 is 60 minutes；

5th preset duration t5 is 5 minutes；

The first preset temperature difference A1 is 10 DEG C；

The second preset temperature difference A2 is 10 DEG C；

The 3rd preset temperature difference A3 is 1 DEG C；

The 4th preset temperature difference A4 is 2 DEG C；

First preset times D1 are 3；

Second preset times D2 are 2；

3rd preset times D3 are 2.

23. a kind of air-conditioners, it is characterised in that include that the air-conditioner coolant as any one of claim 12 to 22 is revealed Detecting system.