CN104006934B - Detection system, method and device and air conditioner - Google Patents
Detection system, method and device and air conditioner Download PDFInfo
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- CN104006934B CN104006934B CN201410247999.XA CN201410247999A CN104006934B CN 104006934 B CN104006934 B CN 104006934B CN 201410247999 A CN201410247999 A CN 201410247999A CN 104006934 B CN104006934 B CN 104006934B
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- 238000001514 detection method Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims description 18
- 239000003507 refrigerant Substances 0.000 claims abstract description 66
- 230000001143 conditioned effect Effects 0.000 claims description 109
- 230000005611 electricity Effects 0.000 description 11
- 239000003795 chemical substances by application Substances 0.000 description 8
- 230000011218 segmentation Effects 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Abstract
The embodiment of the invention discloses a detection system, which comprises two electromagnetic valves arranged in a refrigerant circuit, a pressure sensor arranged at an exhaust port of a compressor and a controller electrically connected with the two electromagnetic valves and the pressure sensor, so that the controller can sequentially open each electromagnetic valve according to the refrigerant circuit in an air conditioner after receiving a starting instruction, and judge whether refrigerant leakage occurs or not according to a pressure value acquired by the pressure sensor before each electromagnetic valve is opened, thereby judging whether refrigerant leakage occurs in a refrigerant circuit section before the electromagnetic valve which is closest to the exhaust port of the compressor and is not opened in the refrigerant circuit, realizing the purpose of detecting whether refrigerant leakage occurs or not in a segmented manner, and determining the position range of the refrigerant leakage. The application also provides a detection method and device and an air conditioner.
Description
Technical field
The present invention relates to air-conditioner technical field, more particularly, it relates to a kind of detecting system, method, device and air-conditioning
Device.
Background technology
Air conditioner refrigerant leakage not only wastes electric power, also can shorten the service life of air-conditioner, serious meeting causes fire
Calamity or the danger of blast, accordingly, it would be desirable to detect to whether cold-producing medium leaks.
At present, whether detection air-conditioner has the method for cold-producing medium leakage to have a lot, but these detection methods all can only judge
Whether refrigeration system leaks, and cannot judge that system occurs the position of leakage.
Therefore, how to detect that cold-producing medium occurs the position of leakage to become problem demanding prompt solution.
Content of the invention
It is an object of the invention to provide a kind of detecting system, the position being leaked with detecting cold-producing medium to occur.
For achieving the above object, the invention provides following technical scheme：
A kind of detecting system, is applied to air-conditioner, and described air-conditioner includes off-premises station, the exhaust end setting of described off-premises station
There is the first stop valve, the exhaust end of the outdoor heat exchanger in described off-premises station is provided with choke valve, described first stop valve and institute
State choke valve and pass through the first connecting tube connection；The inlet end of described off-premises station is provided with the second stop valve, described second stop valve
It is connected with the air entry of the compressor in described off-premises station by the second connecting tube；Described detecting system includes：
Pressure sensor in 3rd connecting tube of the exhaust outlet being arranged on described compressor；
It is arranged on the first magnetic valve in described first connecting tube；
It is arranged on the second magnetic valve in described second connecting tube；
The controller electrically connecting with described pressure sensor, described first magnetic valve and described second magnetic valve respectively.
, it is preferred that described off-premises station also includes four-way change-over valve, the exhaust outlet of described compressor is by described for said system
First path of four-way change-over valve is connected with the inlet end of described outdoor heat exchanger；
Described second connecting tube includes the first connecting branch and the second connecting branch；
The input of the alternate path of described four-way change-over valve passes through described first connecting branch and described second stop valve
It is connected, the output end of the alternate path of the described four-way change-over valve air-breathing by described second connecting branch and described compressor
Mouth is connected.
Said system is it is preferred that also include：
At least one the 3rd magnetic valve, the set location of described 3rd magnetic valve and the set location of described first magnetic valve
All different with the set location of described second magnetic valve.
Said system is it is preferred that described air-conditioner also includes indoor set, the air inlet of the indoor heat exchanger in described indoor set
End is connected with the first connector by the 4th connecting tube, and the exhaust end of the indoor heat exchanger in described indoor set passes through the 5th even
Adapter is connected with the second connector；Described system also includes two the 3rd magnetic valves, wherein,
The 4th magnetic valve in described two 3rd magnetic valves is arranged in described 4th connecting tube, described two 3rd electricity
The 5th magnetic valve in magnet valve is arranged in described 5th connecting tube；
Described controller is also electrically connected with described 4th magnetic valve and described 5th magnetic valve.
Said system is it is preferred that described air-conditioner also includes indoor set, the air inlet of the indoor heat exchanger in described indoor set
End is connected with the first connector by the 4th connecting tube, and the exhaust end of the indoor heat exchanger in described indoor set passes through the 5th even
Adapter is connected with the second connector；Described system also includes four the 3rd magnetic valves, wherein,
The 4th magnetic valve in described four the 3rd magnetic valves is arranged in described 4th connecting tube, described four the 3rd electricity
The 5th magnetic valve in magnet valve is arranged in described 5th connecting tube；
The 6th magnetic valve in described four the 3rd magnetic valves is arranged on the exhaust outlet of described compressor and described outdoor is changed
In connecting tube between the inlet end of hot device, the 7th magnetic valve in described four the 3rd magnetic valves be arranged on described choke valve with
In connecting tube between the exhaust end of described outdoor heat exchanger；
Described controller also with described 4th magnetic valve, described 5th magnetic valve, described 6th magnetic valve and the described 7th
Magnetic valve electrically connects.
A kind of air-conditioner, including the detecting system described in as above any one.
A kind of detection method, based on the detecting system described in as above any one, methods described includes：
Obtain the pressure value of described pressure sensor collection；
Judge whether acquired pressure value meets first pre-conditioned；There is cold-producing medium leakage if it is, determining；
Otherwise, open in the refrigerant loop of described air-conditioner, apart from the exhaust outlet of described compressor nearest not
The magnetic valve opened, and the step executing the described pressure value obtaining described pressure sensor collection.
Said method is it is preferred that the pressure value of described acquisition described pressure sensor collection includes：Obtain frequency according to default
Rate obtains several pressure value of described pressure sensor collection in the first preset duration；
Whether the acquired pressure value of described judgement meets the first pre-conditioned inclusion：
Judge, in several pressure value obtaining in described first preset duration, whether two neighboring pressure value meets the
One son is pre-conditioned；
Judge whether last pressure value obtaining in described first preset duration and first pressure value meet the
Two sons are pre-conditioned；
Pre-conditioned in described two neighboring pressure value satisfaction first, and/or, last pressure value described and first
Individual pressure value meet second sub pre-conditioned when, determine that acquired pressure value meets first pre-conditioned；Otherwise, it determines being obtained
It is pre-conditioned that the pressure value taking is unsatisfactory for first.
Said method is it is preferred that work as a nearest magnetic valve do not opened of the described exhaust outlet apart from described compressor
Be apart from the nearest magnetic valve of exhaust outlet of described compressor when, whether the pressure value acquired in described judgement meets first is preset
Condition includes：
Judge, in several pressure value obtaining in described first preset duration, whether two neighboring pressure value meets the
One son is pre-conditioned；
Judge whether last pressure value obtaining in described first preset duration and first pressure value meet the
Two sons are pre-conditioned；
Judge whether first pressure value obtaining in described first preset duration meets the 3rd son pre-conditioned；
Pre-conditioned in described two neighboring pressure value satisfaction first, and/or, last pressure value described and first
It is pre-conditioned that individual pressure value meets the second son, and/or, described first pressure value meet the 3rd sub pre-conditioned when, determine institute
It is pre-conditioned that the pressure value obtaining meets first；Otherwise, it determines acquired pressure value to be unsatisfactory for first pre-conditioned.
Said method is it is preferred that also include：
After receiving shutdown command, wait the second preset duration；When waiting time reaching described second preset duration,
Judge whether acquired pressure value meets second pre-conditioned；
If it is, closing each magnetic valve.
A kind of detection means, based on the detecting system described in as above any one, described device includes：
Acquisition module, for obtaining the pressure value of described pressure sensor collection；
First detection module, it is first pre-conditioned whether the pressure value for judging acquired in described acquisition module meets,
There is cold-producing medium leakage if it is, determining；
First control module, for judging pressure value acquired in described acquisition module not in described first detection module
Meet first pre-conditioned when, open described air-conditioner in refrigerant loop in, nearest apart from the exhaust outlet of described compressor
A magnetic valve do not opened, and trigger the step that the execution of described acquisition module obtains the pressure value of described pressure sensor collection
Suddenly.
Said apparatus are it is preferred that described acquisition module is specifically for according to default acquisition frequency acquisition first preset duration
Several pressure value of interior described pressure sensor collection；
Described first detection module includes：
First judging unit, for judging several pressure that described acquisition module obtains in described first preset duration
In value, it is pre-conditioned whether two neighboring pressure value meets the first son；
Second judging unit, with judging last pressure that described acquisition module obtains in described first preset duration
It is pre-conditioned whether value and first pressure value meet the second son；
First determining unit, pre-conditioned for meeting the first son in described two neighboring pressure value, and/or, described
Latter pressure value and first pressure value meet second sub pre-conditioned when, determine that acquired pressure value meets first and presets
Condition；Otherwise, it determines acquired pressure value to be unsatisfactory for first pre-conditioned；
Second determining unit, pre-conditioned for determining that acquired pressure value meets first in described first determining unit
When, determine between the nearest magnetic valve do not opened of exhaust outlet of described Range compress machine and the exhaust outlet of described compressor
Refrigerant loop section occur cold-producing medium leakage.
Said apparatus are it is preferred that work as a nearest magnetic valve do not opened of the described exhaust outlet apart from described compressor
Be apart from the nearest magnetic valve of exhaust outlet of described compressor when, described first detection module also includes：
3rd judging unit, for judging first pressure that described acquisition module obtains in described first preset duration
It is pre-conditioned whether value meets the 3rd son；
Described first determining unit specifically for, meet the first son in described two neighboring pressure value pre-conditioned, and/
Or, last pressure value described and first pressure value satisfaction second are pre-conditioned, and/or, described first pressure value
Meet the 3rd sub pre-conditioned when, determine that acquired pressure value meets first pre-conditioned；Otherwise, it determines acquired pressure
It is pre-conditioned that value is unsatisfactory for first.
Said apparatus are it is preferred that also include：
Second detection module, for, after receiving shutdown command, waiting the second preset duration；Reach institute in waiting time
When stating the second preset duration, judge whether acquired pressure value meets second pre-conditioned；
In described second detection module, second control module, for judging that acquired pressure value meets the second default bar
During part, close each magnetic valve.
A kind of detecting system being provided by above scheme, the application, is applied to air-conditioner, described air-conditioner includes
Off-premises station, the exhaust end of described off-premises station is provided with the first stop valve, and the exhaust end of the outdoor heat exchanger in described off-premises station sets
It is equipped with choke valve, described first stop valve and described choke valve pass through the first connecting tube and connect；The inlet end of described off-premises station sets
It is equipped with the second stop valve, described second stop valve is connected with the air entry of the compressor in described off-premises station by the second connecting tube
Connect；Described detecting system includes：Pressure sensor in 3rd connecting tube of the exhaust end being arranged on described compressor；It is arranged on
The first magnetic valve in described first connecting tube；It is arranged on the second magnetic valve in described second connecting tube；Respectively with described pressure
The controller of force snesor, described first magnetic valve and described second magnetic valve electrical connection.There is provided based on the embodiment of the present application
Detecting system, described controller can be opened according to the refrigerant loop in described air-conditioner after receiving start-up command successively
Open each magnetic valve, and judged whether to make according to the pressure value of pressure sensor collection before each magnetic valve is opened
Cryogen leaks, such that it is able to judge the refrigeration before the nearest non-opens solenoid valve of Range compress machine exhaust outlet in refrigerant loop
Whether agent loop sections occur cold-producing medium to leak, and realize segmentation and detect whether cold-producing medium occurs the purpose leaking, so that it is determined that refrigeration
There is the position range of leakage in agent.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
A kind of structural representation of the detecting system that Fig. 1 provides for the embodiment of the present application；
Another kind of structural representation of the detecting system that Fig. 2 provides for the embodiment of the present application；
Another structural representation of the detecting system that Fig. 3 provides for the embodiment of the present application；
Another structural representation of the detecting system that Fig. 4 provides for the embodiment of the present application；
A kind of flowchart of the detection method that Fig. 5 provides for the embodiment of the present application；
A kind of structural representation of the detection means that Fig. 6 provides for the embodiment of the present application；
A kind of structural representation of the first detection module that Fig. 7 provides for the embodiment of the present application；
Another middle structural representation of the first detection module that Fig. 8 provides for the embodiment of the present application；
Another middle structural representation of the detection means that Fig. 9 provides for the embodiment of the present application.
Term " first " in specification and claims and above-mentioned accompanying drawing, " second ", " the 3rd " " the 4th " etc. (if
Exist) it is for distinguishing similar part, without for describing specific order or precedence.It should be appreciated that such use
Data can exchange in the appropriate case, so that embodiments herein described herein can be with except illustrating here
Order in addition is implemented.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
The detecting system that the embodiment of the present application provides is applied to air-conditioner, and described air-conditioner includes off-premises station, described outdoor
The exhaust end of machine is provided with the first stop valve, and the exhaust end of the outdoor heat exchanger in described off-premises station is provided with choke valve, described
First stop valve and described choke valve pass through the first connecting tube and connect；The inlet end of described off-premises station is provided with the second stop valve,
Described second stop valve is connected with the air entry of the compressor in off-premises station by the second connecting tube.
Refer to Fig. 1, a kind of structural representation of the detecting system that Fig. 1 provides for the embodiment of the present application, can include：
Pressure sensor 1, the first magnetic valve 2, the second magnetic valve 3 and controller 4；Wherein,
Pressure sensor 1 is arranged in the 3rd connecting tube of the exhaust outlet of compressor, for the exhaust outlet of collect and process machine
Pressure；I.e. pressure sensor 1 be arranged on be connected with the exhaust outlet of compressor the 3rd connecting tube (in Fig. 1, outdoor heat exchange
Connecting tube between the inlet end of device and the exhaust outlet of compressor) on.
First magnetic valve 2 is arranged in the first connecting tube, and that is, the first magnetic valve 2 is disposed in the outdoor choke valve and first in machine
On connecting line between stop valve；
Second magnetic valve 3 is arranged in the second connecting tube, that is, the second magnetic valve 3 be disposed in the outdoor in machine the second stop valve and
On connecting line between the air entry of compressor；
Controller 4 respectively with pressure sensor 1, the first magnetic valve 2 and the second magnetic valve 3 electrically connect.
For ease of distinguishing, in the embodiment of the present application, in air-conditioner, the connecting line between all parts is indicated by the solid line, and
Connection line between controller 4 and pressure sensor 1 and each magnetic valve is represented by dashed line.
When air-conditioner normally freezes, the first magnetic valve 2 and the second magnetic valve 3 are all opened, refrigerant loop in air-conditioner
For：Cold-producing medium, after exhaust outlet of compressor discharge, initially enters outdoor heat exchanger, after discharging through outdoor heat exchanger, sequentially passes through
Choke valve, the first magnetic valve 2 and the first stop valve export to the indoor heat exchanger of indoor set, and cold-producing medium exports from indoor heat exchanger
Enter off-premises station through the second stop valve afterwards, be then passed through the second magnetic valve 3 and enter compressor air suction mouth.
In the embodiment of the present application, two magnetic valves are set in refrigerant loop, refrigerant loop is divided into three sections：From
Exhaust outlet of compressor is first paragraph to the first magnetic valve 2, is second segment from first magnetic valve the 2 to the second magnetic valve 3, from the second electricity
Magnet valve 3 arrives compressor air suction mouth and is the 3rd section.The detecting system being provided based on the embodiment of the present application, controller 4 can receive
To after start-up command, open each magnetic valve successively according to refrigerant loop in air-conditioner, and open it in each magnetic valve
The front pressure value according to pressure sensor collection judges whether cold-producing medium leakage to occur, such that it is able to judge refrigerant loop middle-range
Whether the refrigerant loop section before the nearest non-opens solenoid valve of exhaust outlet of compressor occurs cold-producing medium to leak, and realizes segmentation
Whether detection cold-producing medium there is the purpose leaking, so that it is determined that cold-producing medium occurs the position range of leakage.
Illustrate in the embodiment of the present application with reference to Fig. 1, realize the process of segmentation detection by detecting system shown in Fig. 1.
In air-conditioner start, before compressor start, each magnetic valve is closed.
Controller 4, after receiving start-up command, can obtain the pressure value that pressure sensor 1 records, and is passed according to pressure
The change information of the pressure value that sensor 1 records determines whether cold-producing medium leakage, and because the first magnetic valve 2 is to cut out,
Cold-producing medium can not pass through the first magnetic valve 2, therefore if it is determined that there is cold-producing medium leakage, exhaust outlet of compressor and first is described
There is cold-producing medium leakage in the refrigerant loop section between magnetic valve 2, be not turned on the first magnetic valve 2 and the electromagnetism subsequently do not opened
Valve；Otherwise, illustrate that the refrigerant loop section between exhaust outlet of compressor and the first magnetic valve 2 does not leak, then open
First magnetic valve 2；
After opening the first magnetic valve 2, obtain the pressure value that pressure sensor 1 records again, surveyed according to pressure sensor 1
The change information of the pressure value obtaining determines whether cold-producing medium leakage, in the event of cold-producing medium leakage, the first magnetic valve 2 is described
And second the refrigerant loop section between magnetic valve 3 leak, be not turned on the second magnetic valve 3；Otherwise, the first magnetic valve is described
The 2 and second refrigerant loop sections between magnetic valve 3 also do not leak, that is, exhaust outlet of compressor to the second magnetic valve 3 it
Between all do not occur cold-producing medium leak, then open the second magnetic valve 3；
After opening the second magnetic valve 3, obtain the pressure value that pressure sensor 1 records again, surveyed according to pressure sensor 1
The change information of the pressure value obtaining determines whether cold-producing medium leakage, in the event of cold-producing medium leakage, the second magnetic valve 3 is described
There is cold-producing medium leakage in the refrigerant loop section and compressor air suction mouth between；Otherwise, illustrate that the second magnetic valve 3 and compressor are inhaled
Refrigerant loop section between gas port does not occur cold-producing medium to leak yet, that is, whole refrigerant loop does not all freeze
Agent leaks.
When determining that whole refrigerant loop does not all occur cold-producing medium leakage, normally start compressor.
In another embodiment that the application provides, described off-premises station also includes four-way change-over valve, the exhaust of described compressor
Mouth is connected with the inlet end of described outdoor heat exchanger by the first path of described four-way change-over valve；Based on this, the application is real
Another kind of structural representation of detecting system that example offer is provided as shown in Fig. 2 wherein, a mouth of four-way change-over valve and b mouth composition the
One path, the c mouth of four-way change-over valve and d mouth constitute alternate path, and described second connecting tube includes the first connecting branch 21 and the
Two connecting branches 22；Wherein,
The input (i.e. c mouth) of the alternate path of four-way change-over valve passes through described first connecting branch 21 and described second section
Only valve is connected, and the output end (i.e. d mouth) of the alternate path of described four-way change-over valve passes through described second connecting branch 22 and institute
The air entry stating compressor is connected.
That is, the detecting system that the embodiment of the present application provides, it is applicable not only to not use the air-conditioning of four-way change-over valve
Device, is also applied for the air-conditioner using four-way change-over valve.
Above-described embodiment is it is preferred that described detecting system can also include at least one the 3rd magnetic valve, described 3rd electricity
The set location of magnet valve is all differed with the set location of described first magnetic valve 2 and the set location of described second magnetic valve 3.
When the 3rd magnetic valve is one, this 3rd magnetic valve can be disposed in the outdoor machine side it is also possible to arrange
Machine side indoors；
For example, the 3rd magnetic valve can be arranged on the connecting tube between exhaust outlet of compressor and the inlet end of outdoor heat exchanger
On；Or, the 3rd magnetic valve can be arranged in the connecting tube between the exhaust end of outdoor heat exchanger and choke valve；Or, the 3rd
Magnetic valve can be disposed in the interior in the connecting tube between the inlet end of indoor heat exchanger and the first connector in machine；Or, the
Three magnetic valves can be disposed in the interior in the connecting tube between the exhaust end of indoor heat exchanger and the second connector in machine；Certainly,
Other positions can also be arranged on, as long as equal with the set location of the first magnetic valve 2 and the set location of described second magnetic valve 3
Differ, no longer repeat one by one here.
When the 3rd magnetic valve is two or more, the 3rd magnetic valve can be disposed in the outdoor machine side it is also possible to set
Put machine side indoors, or the 3rd magnetic valve is set in off-premises station side and off-premises station side simultaneously.
For example, it is possible to arrange one the 3rd in connecting tube between exhaust outlet of compressor and the inlet end of outdoor heat exchanger
Magnetic valve, arranges another the 3rd electricity indoors in the connecting tube between the inlet end of indoor heat exchanger and the first connector in machine
Magnet valve；Or in the connecting tube between exhaust outlet of compressor and the inlet end of outdoor heat exchanger, the 3rd magnetic valve is set,
Another 3rd magnetic valve is arranged indoors on the connecting tube between the exhaust end of indoor heat exchanger and the second connector in machine；When
So, can also there are other set-up modes, e.g., can arrange in the connecting tube between the exhaust end of outdoor heat exchanger and choke valve
One the 3rd magnetic valve, arranges another indoors in the connecting tube between the inlet end of indoor heat exchanger and the first connector in machine
Individual 3rd magnetic valve, arranges the 3rd in the connecting tube between the exhaust end of indoor heat exchanger and the second connector in machine indoors
3rd magnetic valve.
In the embodiment of the present application, it is provided with three or more magnetic valves, can be according to the position of magnetic valve cold-producing medium
Loop division is more multistage, such that it is able to a point more multistage, refrigerant loop is detected, thus more accurate determine refrigeration
The position of agent leakage.
Another structural representation of the detecting system that the embodiment of the present application provides as shown in figure 3, in the embodiment of the present application,
Described air-conditioner also includes indoor set, and the inlet end of the indoor heat exchanger in described indoor set passes through the 4th connecting tube with first even
Joint is connected, and the exhaust end of the indoor heat exchanger in described indoor set is connected with the second connector by the 5th connecting tube；
Described system can also include two the 3rd magnetic valves, wherein,
The 4th magnetic valve 31 in described two 3rd magnetic valves is arranged on described 4th connecting tube, described two 3rd electricity
The 5th magnetic valve 32 in magnet valve is arranged in described 5th connecting tube；
For ease of distinguishing, in the embodiment of the present application, two the 3rd magnetic valves are respectively designated as the 4th magnetic valve and the 5th
Magnetic valve.
Described controller 4 is also electrically connected with described 4th magnetic valve 31 and described 5th magnetic valve 32.
Specifically whether cold-producing medium is leaked detect when, before the first magnetic valve 2 is opened, if refrigeration is detected
Agent leaks, and illustrates that exhaust outlet of compressor leaks to the refrigerant loop section between the first magnetic valve 2, is not turned on the first electromagnetism
Valve 2 and the magnetic valve subsequently do not opened；Otherwise explanation exhaust outlet of compressor does not have to the refrigerant loop section between the first magnetic valve 2
Leak, then open the first magnetic valve 2；
After opening the first magnetic valve 2, if cold-producing medium leakage is detected, illustrate the first magnetic valve 2 to the 4th magnetic valve
Refrigerant loop section between 31 leaks, and is not turned on the 4th magnetic valve 31 and the magnetic valve subsequently do not opened；Otherwise illustrate
Refrigerant loop section between first magnetic valve 2 to the 4th magnetic valve 31 does not leak, and then opens the 4th magnetic valve 31；
After opening the 4th magnetic valve 31, if cold-producing medium leakage is detected, illustrate the 4th magnetic valve 31 to the 5th electromagnetism
Refrigerant loop section between valve 32 leaks, and is not turned on the 5th magnetic valve 32 and the magnetic valve subsequently do not opened；Otherwise say
Refrigerant loop section between bright 4th magnetic valve 31 to the 5th magnetic valve 32 does not leak, and then opens the 5th magnetic valve
32；
After opening the 5th magnetic valve 32, if cold-producing medium leakage is detected, the 5th magnetic valve the 32 to the second electromagnetism is described
Refrigerant loop section between valve 3 leaks, and is not turned on the second magnetic valve 3；Otherwise explanation the 5th magnetic valve the 32 to the second electricity
Refrigerant loop section between magnet valve 3 does not leak, and then opens the second magnetic valve 3；
After opening the second magnetic valve 3, if cold-producing medium leakage is detected, illustrate compressor air suction mouth to the second magnetic valve
Refrigerant loop section between 3 leaks；The refrigerant loop between the second magnetic valve 3 for the compressor air suction mouth is otherwise described
Section does not leak.
Another structural representation of the detecting system that the embodiment of the present application provides as shown in figure 4, in the embodiment of the present application,
Described air-conditioner also includes indoor set, and the inlet end of the indoor heat exchanger in described indoor set passes through the 4th connecting tube with first even
Joint is connected, and the exhaust end of the indoor heat exchanger in described indoor set is connected with the second connector by the 5th connecting tube；
Described system can also include four the 3rd magnetic valves, wherein,
The 4th magnetic valve 31 in described four the 3rd magnetic valves is arranged on described 4th connecting tube, described four the 3rd electricity
The 5th magnetic valve 32 in magnet valve is arranged in described 5th connecting tube；
The 6th magnetic valve 41 in described four the 3rd magnetic valves is arranged on the exhaust outlet of described compressor and described outdoor
In connecting tube between the inlet end of heat exchanger, the 7th magnetic valve 42 in described four the 3rd magnetic valves is arranged on described throttling
In connecting tube between the exhaust end of valve and described outdoor heat exchanger；
Described controller 4 also with described 4th magnetic valve 31, described 5th magnetic valve 32, described 6th magnetic valve 41 and institute
State the 7th magnetic valve 42 to electrically connect.
For ease of distinguishing, in the embodiment of the present application, four the 3rd magnetic valves are respectively designated as the 4th magnetic valve, the 5th electricity
Magnet valve, the 6th magnetic valve and the 7th magnetic valve.
Specifically whether cold-producing medium is leaked detect when, before the 6th magnetic valve 41 is opened, if system is detected
Cryogen leaks, and illustrates that exhaust outlet of compressor leaks to the refrigerant loop section between the 6th magnetic valve 41, is not turned on the 6th
Magnetic valve 41 and the magnetic valve subsequently do not opened；Otherwise explanation exhaust outlet of compressor returns to the cold-producing medium between the 6th magnetic valve 41
Section does not leak, and then opens the 6th magnetic valve 41；
After opening the 6th magnetic valve 41, if cold-producing medium leakage is detected, illustrate the 6th magnetic valve 41 to the 7th electromagnetism
Refrigerant loop section between valve 42 leaks, and is not turned on the 7th magnetic valve 42 and the magnetic valve subsequently do not opened；Otherwise say
Refrigerant loop section between bright 6th magnetic valve 41 to the 7th magnetic valve 42 does not leak, and then opens the 7th magnetic valve
42；
After opening the 7th magnetic valve 42, if cold-producing medium leakage is detected, the 7th magnetic valve the 42 to the first electromagnetism is described
Refrigerant loop section between valve 2 leaks, and is not turned on the first magnetic valve 2 and the magnetic valve subsequently do not opened；Otherwise illustrate
Refrigerant loop section between 7th magnetic valve the 42 to the first magnetic valve 2 does not leak, and then opens the first magnetic valve 2；
After opening the first magnetic valve 2, if cold-producing medium leakage is detected, illustrate the first magnetic valve 2 to the 4th magnetic valve
Refrigerant loop section between 31 leaks, and is not turned on the 4th magnetic valve 31 and the magnetic valve subsequently do not opened；Otherwise illustrate
Refrigerant loop section between first magnetic valve 2 to the 4th magnetic valve 31 does not leak, and then opens the 4th magnetic valve 31；
After opening the 4th magnetic valve 31, if cold-producing medium leakage is detected, illustrate the 4th magnetic valve 31 to the 5th electromagnetism
Refrigerant loop section between valve 32 leaks, and is not turned on the 5th magnetic valve 32 and the follow-up magnetic valve for opening；Otherwise say
Refrigerant loop section between bright 4th magnetic valve 31 to the 5th magnetic valve 32 does not leak, and then opens the 5th magnetic valve
32；
After opening the 5th magnetic valve 32, if cold-producing medium leakage is detected, the 5th magnetic valve the 32 to the second electromagnetism is described
Refrigerant loop section between valve 3 leaks, and is not turned on the second magnetic valve 3；Otherwise explanation the 5th magnetic valve the 32 to the second electricity
Refrigerant loop section between magnet valve 3 does not leak, and then opens the second magnetic valve 3；
After opening the second magnetic valve 3, if cold-producing medium leakage is detected, illustrate compressor air suction mouth to the second magnetic valve
Refrigerant loop section between 3 leaks；The refrigerant loop between the second magnetic valve 3 for the compressor air suction mouth is otherwise described
Section does not leak.
The embodiment of the present application also provides a kind of air-conditioner, and this air-conditioner has the as above detecting system described in any one.
The embodiment of the present application also provides a kind of detection method, and this detection method is based on the inspection described in as above any one embodiment
Examining system, this detection method can apply in the controller in system detected as described above, the inspection that the embodiment of the present application provides
A kind of flowchart of survey method is as shown in figure 5, can include：
Step S51：Obtain the pressure value of described pressure sensor collection；
Step S52：Judge whether acquired pressure value meets first pre-conditioned；
There is cold-producing medium leakage if it is, determining；
In the embodiment of the present application, if it is judged that acquired pressure value satisfaction first is pre-conditioned, illustrate that cold-producing medium returns
Lu Zhong, the condensation from the exhaust outlet of compressor magnetic valve do not opened nearest to the exhaust outlet apart from described compressor
There is cold-producing medium leakage in agent loop sections；Otherwise, illustrate nearest to the exhaust outlet apart from described compressor from exhaust outlet of compressor
Condensing agent loop sections between one magnetic valve do not opened do not occur cold-producing medium to leak.
Step S53：Acquired pressure value be unsatisfactory for first pre-conditioned when, open described air-conditioner cold-producing medium return
Lu Zhong, apart from a nearest magnetic valve do not opened of the exhaust outlet of described compressor, and executes described acquisition described pressure biography
The step of the pressure value of sensor collection.
When determination from exhaust outlet of compressor to a nearest magnetic valve do not opened of the exhaust outlet apart from described compressor
Between condensing agent loop sections when there is not cold-producing medium leakage, open apart from described compressor exhaust outlet nearest not
The magnetic valve opened, is then back to execution step S51.
A kind of detection method that the embodiment of the present application provides, based on a kind of detecting system, this detecting system includes being arranged on
Two magnetic valves in refrigerant loop and be arranged on the pressure sensor of exhaust outlet of compressor, and with this two magnetic valves and
The controller of pressure sensor electrical connection, the detection method that the embodiment of the present application provides, can apply to, in described controller, obtain
Take the pressure value of described pressure sensor collection；Judge whether acquired pressure value meets first pre-conditioned, if it is,
Determine and cold-producing medium leakage occurs；Otherwise, open described air-conditioner refrigerant loop in, apart from described compressor exhaust outlet
A near magnetic valve do not opened, and execute the described pressure value obtaining described pressure sensor collection step it is achieved that
Open each magnetic valve according to the refrigerant loop in described air-conditioner successively, and according to pressure before each magnetic valve is opened
The pressure value of force snesor collection judges whether cold-producing medium leakage to occur, such that it is able to judge Range compress machine in refrigerant loop
Whether cold-producing medium leakage refrigerant loop section before the nearest non-opens solenoid valve of exhaust outlet occurs it is achieved that segmentation detection is made
Whether cryogen there is the purpose leaking, and may thereby determine that cold-producing medium occurs the position range of leakage.
It is preferred that the described pressure value obtaining described pressure sensor collection can include in above-described embodiment：According to pre-
If obtaining several pressure value of described pressure sensor collection in frequency acquisition first preset duration；
Wherein, described first preset duration can be according to institute in described default acquisition frequency and described first preset duration
The number needing the pressure value obtaining determines, that is, the first preset duration is the described default pressure obtaining frequency and required acquisition
The product of the number of value.
Preferably, described default acquisition frequency can be 1～10s/ time, can obtain at least 5 pressure value；Described first
Preset duration can be between 15s～90s, as long as at least 5 pressure value can be obtained in described first preset duration.
Accordingly, described judge whether acquired pressure value meets first and pre-conditioned can include：
Judge, in several pressure value obtaining in described first preset duration, whether two neighboring pressure value meets the
One son is pre-conditioned；
Assume that some any pressure value detecting in described first preset duration is Px, if the previous pressure value of Px
For Px-1, specifically, described judge whether two neighboring pressure value meets that the first son is pre-conditioned can be：
Judge whether that the continuous m second is satisfied by Px<Px-1, if it is, the two neighboring pressure value of explanation meets the first son in advance
If condition；Otherwise illustrate that two neighboring pressure value is unsatisfactory for the first son pre-conditioned.Wherein, the value of m can for 15～60 it
Between any one integer value.
Judge whether last pressure value obtaining in described first preset duration and first pressure value meet the
Two sons are pre-conditioned；
Specifically, if described first pressure value is more than the first default threshold with the difference of last pressure value described
Value is it is determined that last pressure value that described acquisition module obtains in described first preset duration is expired with first pressure value
Foot second is pre-conditioned；Otherwise, it determines last pressure that described acquisition module obtains in described first preset duration
It is pre-conditioned that value and first pressure value are unsatisfactory for the second son.
Pre-conditioned in described two neighboring pressure value satisfaction first, and/or, last pressure value described and first
Individual pressure value meet second sub pre-conditioned when, determine that acquired pressure value meets first pre-conditioned；Otherwise, it determines being obtained
It is pre-conditioned that the pressure value taking is unsatisfactory for first.That is, above-mentioned two is pre-conditioned, as long as there being a son pre-conditioned
Meet it is possible to determine that acquired pressure value satisfaction first is pre-conditioned.
It is preferred that working as a nearest electricity do not opened of the described exhaust outlet apart from described compressor in above-described embodiment
Magnet valve be apart from the nearest magnetic valve of exhaust outlet of described compressor when, whether the pressure value acquired in described judgement meets first
Pre-conditioned inclusion：
Judge, in several pressure value obtaining in described first preset duration, whether two neighboring pressure value meets the
One son is pre-conditioned；
Judge whether last pressure value obtaining in described first preset duration and first pressure value meet the
Two sons are pre-conditioned；
Judge whether first pressure value obtaining in described first preset duration meets the 3rd son pre-conditioned；
Specifically, if first pressure value is less than the second predetermined threshold value, can determine in described first preset duration
It is pre-conditioned that first pressure value of interior acquisition meets the 3rd son；Otherwise it may be determined that obtaining in described first preset duration
First pressure value be unsatisfactory for the 3rd son pre-conditioned.
Pre-conditioned in described two neighboring pressure value satisfaction first, and/or, last pressure value described and first
It is pre-conditioned that individual pressure value meets the second son, and/or, described first pressure value meet the 3rd sub pre-conditioned when, determine institute
It is pre-conditioned that the pressure value obtaining meets first；Otherwise, it determines acquired pressure value to be unsatisfactory for first pre-conditioned.Namely
Say, above three is pre-conditioned, as long as having, son is pre-conditioned to be met it is possible to determine that acquired pressure value meets the
One is pre-conditioned.
The method that above-mentioned the embodiment of the present application provides, can start when air-conditioner is started shooting.
It is preferred that methods described can also include in above-described embodiment：
After receiving shutdown command, wait the second preset duration；When waiting time reaching described second preset duration,
Judge whether acquired pressure value meets second pre-conditioned；
If it is, closing each magnetic valve, in order to detecting whether to occur cold-producing medium to let out with segmentation during start next time
Leakage.
After receiving shutdown command, compressor is out of service；In the embodiment of the present application, after receiving shutdown command,
While compressor is out of service, wait the second preset duration (starting timing after receiving shutdown command), this is preset
Duration can be between 30s～180s；When waiting time reaching described second preset duration, obtain pressure sensor again and adopt
The pressure value of collection, judges whether acquired pressure value meets second pre-conditioned, specifically, judges that acquired pressure value is
No satisfaction second is pre-conditioned can be included：
By default several pressure value obtaining described pressure sensor collection in frequency acquisition the 3rd preset duration；
In the embodiment of the present application, described 3rd preset duration can be 30s～150s.
Judge whether that the continuous k second is satisfied by Px=Px-1, if it is, whether the acquired pressure value of explanation meets second
Pre-conditioned；Otherwise, illustrate that acquired pressure value is unsatisfactory for second pre-conditioned.Wherein, the value of k can for 10～30 it
Between any one integer value；
If acquired pressure value is unsatisfactory for second pre-conditioned, described pressure in the 3rd preset duration can be obtained again
Several pressure value of sensor collection.
Corresponding with embodiment of the method, the embodiment of the present application obtains the pressure value of pressure sensor collection, and executes judgement
Whether acquired pressure value meets the second pre-conditioned step.
Corresponding with embodiment of the method, the embodiment of the present application also provides a kind of detection means, and the embodiment of the present application provides
Detection means can apply to described detection also based on detecting system as above, the detection means that the embodiment of the present application provides
In the controller of system, a kind of structural representation of the detection means that the embodiment of the present application provides is as shown in fig. 6, can include：
Acquisition module 61, first detection module 62 and the first control module 63；Wherein,
Acquisition module 61 is used for obtaining the pressure value of described pressure sensor collection；
It is first pre-conditioned whether the pressure value that first detection module 62 is used for judging acquired in described acquisition module meets,
There is cold-producing medium leakage if it is, determining；
First control module 63 is used for judging the pressure value acquired in described acquisition module in described first detection module
Be unsatisfactory for first pre-conditioned when, open described air-conditioner in refrigerant loop in, apart from described compressor exhaust outlet
A near magnetic valve do not opened, and trigger the pressure value that described acquisition module 61 execution obtains described pressure sensor collection
Step.
A kind of detection means that the embodiment of the present application provides, based on a kind of detecting system, this detecting system includes being arranged on
Two magnetic valves in refrigerant loop and be arranged on the pressure sensor of exhaust outlet of compressor, and with this two magnetic valves and
The controller of pressure sensor electrical connection, the detection means that the embodiment of the present application provides, can apply to, in described controller, obtain
Take the pressure value of described pressure sensor collection；Judge whether acquired pressure value meets first pre-conditioned, if it is,
Determine and cold-producing medium leakage occurs；Otherwise, open described air-conditioner refrigerant loop in, apart from described compressor exhaust outlet
A near magnetic valve do not opened, and execute the described pressure value obtaining described pressure sensor collection step it is achieved that
Open each magnetic valve according to the refrigerant loop in described air-conditioner successively, and according to pressure before each magnetic valve is opened
The pressure value of force snesor collection judges whether cold-producing medium leakage to occur, such that it is able to judge Range compress machine in refrigerant loop
Whether cold-producing medium leakage refrigerant loop section before the nearest non-opens solenoid valve of exhaust outlet occurs it is achieved that segmentation detection is made
Whether cryogen there is the purpose leaking, and may thereby determine that cold-producing medium occurs the position range of leakage.
In above-described embodiment, described acquisition module 61 can be according to described in default acquisition frequency acquisition first preset duration
Several pressure value of pressure sensor collection；
Accordingly, the embodiment of the present application provides a kind of structural representation of first detection module 62 as shown in fig. 7, can wrap
Include：
First judging unit 71, the second judging unit 72, the first determining unit 73 and the second determining unit 74；Wherein,
First judging unit 71 is used for judging several that described acquisition module 61 obtains in described first preset duration
In pressure value, it is pre-conditioned whether two neighboring pressure value meets the first son；
Last judging described acquisition module 61 and obtaining in described first preset duration of second judging unit 72
It is pre-conditioned whether pressure value and first pressure value meet the second son；
First determining unit 73 be used for meeting the first son in described two neighboring pressure value pre-conditioned, and/or, described
Latter pressure value and first pressure value meet second sub pre-conditioned when, determine that acquired pressure value meets first and presets
Condition；Otherwise, it determines acquired pressure value to be unsatisfactory for first pre-conditioned；
Second determining unit 74 is used for determining that acquired pressure value meets the first default bar in described first determining unit
During part, determine the nearest magnetic valve do not opened of exhaust outlet of described Range compress machine and described compressor exhaust outlet it
Between refrigerant loop section occur cold-producing medium leakage.
When a nearest magnetic valve do not opened of the described exhaust outlet apart from described compressor is apart from described compressor
Exhaust outlet nearest magnetic valve when, another middle structural representation of the first detection module 62 that the embodiment of the present application provides is as schemed
Shown in 8, can also include：
3rd judging unit 81, for first that judges that described acquisition module 61 obtains in described first preset duration
It is pre-conditioned whether pressure value meets the 3rd son；
Described first determining unit 73 specifically for, meet the first son in described two neighboring pressure value pre-conditioned, and/
Or, last pressure value described and first pressure value satisfaction second are pre-conditioned, and/or, described first pressure value
Meet the 3rd sub pre-conditioned when, determine that acquired pressure value meets first pre-conditioned；Otherwise, it determines acquired pressure
It is pre-conditioned that value is unsatisfactory for first.
Another middle structural representation of the detection means that the embodiment of the present application provides is as shown in figure 9, can also include：
Second detection module 91, for, after receiving shutdown command, waiting the second preset duration；Reach in waiting time
During described second preset duration, judge whether acquired pressure value meets second pre-conditioned；
In described second detection module, second control module 92, for judging that acquired pressure value meets second and presets
During condition, close each magnetic valve.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple modifications to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty phase one
The scope the widest causing.
Claims (7)
1. a kind of detection method based on detecting system, is applied to air-conditioner, and described air-conditioner includes off-premises station, described off-premises station
Exhaust end be provided with the first stop valve, the exhaust end of the outdoor heat exchanger in described off-premises station is provided with choke valve, described
One stop valve and described choke valve pass through the first connecting tube and connect；The inlet end of described off-premises station is provided with the second stop valve, institute
State the second stop valve to be connected with the air entry of the compressor in described off-premises station by the second connecting tube；Described detecting system bag
Include：Pressure sensor in 3rd connecting tube of the exhaust outlet being arranged on described compressor；It is arranged in described first connecting tube
The first magnetic valve；It is arranged on the second magnetic valve in described second connecting tube；Respectively with described pressure sensor, described first
Magnetic valve and the controller of described second magnetic valve electrical connection；It is characterized in that, methods described includes：
Obtain the pressure value of described pressure sensor collection, including：According to institute in default acquisition frequency acquisition first preset duration
State several pressure value of pressure sensor collection；
Judge whether acquired pressure value meets the first pre-conditioned inclusion：
Judge in several pressure value obtaining in described first preset duration, whether two neighboring pressure value meets the first son
Pre-conditioned；
Judge whether last pressure value obtaining in described first preset duration and first pressure value meet the second son
Pre-conditioned；
Pre-conditioned in described two neighboring pressure value satisfaction first, and/or, last pressure value described is pressed with first
Force value meet second sub pre-conditioned when, determine that acquired pressure value meets first pre-conditioned；Otherwise, it determines it is acquired
It is pre-conditioned that pressure value is unsatisfactory for first；
If acquired pressure value meets, first is pre-conditioned it is determined that generation cold-producing medium leaks；
If acquired pressure value is unsatisfactory for first pre-conditioned, open in the refrigerant loop of described air-conditioner, Range compress
A nearest magnetic valve do not opened of the exhaust outlet of machine, and execute the described pressure value obtaining described pressure sensor collection
Step.
2. method according to claim 1 it is characterised in that when the described exhaust outlet apart from described compressor nearest one
The individual magnetic valve do not opened be apart from the nearest magnetic valve of exhaust outlet of described compressor when, the pressure value acquired in described judgement
Whether meet the first pre-conditioned inclusion：
Judge in several pressure value obtaining in described first preset duration, whether two neighboring pressure value meets the first son
Pre-conditioned；
Judge whether last pressure value obtaining in described first preset duration and first pressure value meet the second son
Pre-conditioned；
Judge whether first pressure value obtaining in described first preset duration meets the 3rd son pre-conditioned；
Pre-conditioned in described two neighboring pressure value satisfaction first, and/or, last pressure value described is pressed with first
It is pre-conditioned that force value meets the second son, and/or, described first pressure value meet the 3rd sub pre-conditioned when, determine acquired
Pressure value meet first pre-conditioned；Otherwise, it determines acquired pressure value to be unsatisfactory for first pre-conditioned.
3. method according to claim 1 is it is characterised in that also include：
After receiving shutdown command, wait the second preset duration；When waiting time reaching described second preset duration, judge
It is pre-conditioned whether acquired pressure value meets second；
If it is, closing each magnetic valve.
4. a kind of detection means based on detecting system, is applied to air-conditioner, and described air-conditioner includes off-premises station, described off-premises station
Exhaust end be provided with the first stop valve, the exhaust end of the outdoor heat exchanger in described off-premises station is provided with choke valve, described
One stop valve and described choke valve pass through the first connecting tube and connect；The inlet end of described off-premises station is provided with the second stop valve, institute
State the second stop valve to be connected with the air entry of the compressor in described off-premises station by the second connecting tube；Described detecting system bag
Include：Pressure sensor in 3rd connecting tube of the exhaust outlet being arranged on described compressor；It is arranged in described first connecting tube
The first magnetic valve；It is arranged on the second magnetic valve in described second connecting tube；Respectively with described pressure sensor, described first
Magnetic valve and the controller of described second magnetic valve electrical connection；It is characterized in that, described device includes：
Acquisition module, for obtaining the pressure value of described pressure sensor collection, specifically for according to default acquisition frequency acquisition
Several pressure value of described pressure sensor collection in first preset duration；
First detection module, it is first pre-conditioned whether the pressure value for judging acquired in described acquisition module meets, if
It is that described first detection module includes it is determined that there is cold-producing medium leakage：First judging unit, for judging described acquisition mould
In several pressure value that block obtains in described first preset duration, whether two neighboring pressure value meets the default bar of the first son
Part；Second judging unit, for judging last pressure value that described acquisition module obtains in described first preset duration
It is pre-conditioned with whether first pressure value meets the second son；First determining unit, for full in described two neighboring pressure value
Foot first is pre-conditioned, and/or, last pressure value described and first pressure value meet second sub pre-conditioned when,
Determine that acquired pressure value meets first pre-conditioned；Otherwise, it determines acquired pressure value to be unsatisfactory for first pre-conditioned；
Second determining unit, for described first determining unit determine acquired pressure value meet first pre-conditioned when, determine
Cold-producing medium between a nearest magnetic valve do not opened of the exhaust outlet of Range compress machine and the exhaust outlet of described compressor returns
There is cold-producing medium leakage in section；
First control module, for judging that in described first detection module the pressure value acquired in described acquisition module is unsatisfactory for
First pre-conditioned when, open described air-conditioner in refrigerant loop in, apart from the exhaust outlet of described compressor nearest one
The individual magnetic valve do not opened, and trigger the step that described acquisition module execution obtains the pressure value of described pressure sensor collection.
5. device according to claim 4 it is characterised in that when the described exhaust outlet apart from described compressor nearest one
The individual magnetic valve do not opened be apart from the nearest magnetic valve of exhaust outlet of described compressor when, described first detection module also wraps
Include：
3rd judging unit, for judging that first pressure value that described acquisition module obtains in described first preset duration be
No satisfaction the 3rd is pre-conditioned；
Described first determining unit specifically for, meet the first son in described two neighboring pressure value pre-conditioned, and/or, institute
Stating last pressure value and first pressure value, to meet the second son pre-conditioned, and/or, described first pressure value meets the
Three sub pre-conditioned when, determine that acquired pressure value meets first pre-conditioned；Otherwise, it determines acquired pressure value is discontented with
Foot first is pre-conditioned.
6. device according to claim 4 is it is characterised in that also include：
Second detection module, for, after receiving shutdown command, waiting the second preset duration；Reach described in waiting time
During two preset duration, judge whether acquired pressure value meets second pre-conditioned；
Second control module, pre-conditioned for judging that acquired pressure value meets second in described second detection module
When, close each magnetic valve.
7. a kind of air-conditioner it is characterised in that include off-premises station and as described in claim 4-6 any one based on detection system
The detection means of system.
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| CN104567158B (en) * | 2014-12-19 | 2017-02-22 | 李宁 | System and method for controlling leakage amount of refrigerant of refrigerator system |
| JP6604051B2 (en) * | 2015-06-26 | 2019-11-13 | ダイキン工業株式会社 | Air conditioning system |
| CN105004492B (en) * | 2015-07-16 | 2017-10-27 | 珠海格力电器股份有限公司 | Method and device for detecting leakage of refrigerant of air conditioning unit |
| CN105003975B (en) * | 2015-09-02 | 2018-03-27 | 广东美的制冷设备有限公司 | Split-floor type air conditioner |
| CN105042700B (en) * | 2015-09-02 | 2018-12-11 | 广东美的制冷设备有限公司 | Split-floor type air conditioner and its control method and control device |
| CN105465961B (en) * | 2015-12-25 | 2018-04-17 | 西安交通大学 | There is the air conditioner and control method that control refrigerant migration |
| CN106556560A (en) * | 2017-01-16 | 2017-04-05 | 中国科学院武汉岩土力学研究所 | True triaxial charger and assay device |
| EP3591311B1 (en) * | 2017-03-01 | 2022-03-30 | Mitsubishi Electric Corporation | Refrigeration cycle device |
| CN106768724B (en) * | 2017-04-05 | 2023-08-25 | 徐州徐工筑路机械有限公司 | Device and method for rapidly detecting leakage of heat conduction oil pipeline of asphalt distribution truck |
| CN107389365B (en) * | 2017-06-13 | 2020-08-11 | 珠海格力电器股份有限公司 | Entropy detection equipment for air conditioner outdoor unit |
| CN109406068A (en) * | 2018-12-11 | 2019-03-01 | 上海松芝酷能汽车技术有限公司 | Vehicle air-conditioner evaporator core detection device and detection method |
| CN111397087B (en) * | 2020-03-25 | 2021-06-15 | 美的集团股份有限公司 | Control method and device of air conditioner, electronic equipment and storage medium |
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