CN105387559B - Air conditioner and its valve state detection method and device - Google Patents
Air conditioner and its valve state detection method and device Download PDFInfo
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- CN105387559B CN105387559B CN201510725690.1A CN201510725690A CN105387559B CN 105387559 B CN105387559 B CN 105387559B CN 201510725690 A CN201510725690 A CN 201510725690A CN 105387559 B CN105387559 B CN 105387559B
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- air conditioner
- temperature
- condenser
- valve
- evaporator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of air conditioner and its valve state detection method and device.The air conditioner includes compressor, inner blower and outer wind turbine, which includes：After air conditioner start, control air conditioner is in the first operating status, wherein, in the first operating status, compressor and outer wind turbine are in opening, and inner blower is closed；And the valve state of air conditioner is detected in the first operating status so that whether the valve for detecting air conditioner is in cut-off state.By the present invention, the effect of the valve state of quick detection air conditioner is reached.
Description
Technical field
The present invention relates to air-conditioner field, in particular to a kind of air conditioner and its valve state detection method and dress
Put.
Background technology
At present, air conditioner has the control valves such as volume damper, smoke-and fire-preventing valve, anti-fire smoke expelling valve.The wind of air conditioner
The inner blower of air conditioner and the air quantity of outer wind turbine can be adjusted in adjustable valve, air conditioner is stably worked in refrigeration
Pattern, or heating mode；When the smoke-and fire-preventing valve of air conditioner can produce smoke signal around air conditioner detects, or
Temperature is acted when reaching certain temperature, makes air conditioner isolation smog or the intensity of a fire；The anti-fire smoke expelling valve of air conditioner is in air-conditioning
When device detects smoke signal, smoke discharging pipe is opened, and starts chain smoke exhaust fan smoke evacuation, when producing naked light, air conditioner
Anti-fire smoke expelling valve close, big fire is blocked, so that air conditioner fire and smoke exhaust, improves the security performance of air conditioner.
But the valve of air conditioner is in installation or after-sales service, if not detecting the valve shape of air conditioner in time
State and control it, cause air conditioner to occur hidden danger during operation, produce failure.Such as when air conditioner is held
During reforwarding row, because the valve of air conditioner is not switched on and pressure at expulsion when causing the air conditioner to be in heating mode or refrigeration mode
Constantly increase, so that air conditioner breaks down.At present, it is long to the valve detection time of air conditioner.Due to cannot be timely
Ground detects that the valve state of air conditioner is cut-off state, so that safeguard measure cannot be taken to air conditioner in time.Work as air-conditioning
The pressure at expulsion of device is because during the valve state of air conditioner excessive for cut-off state, when causing the air conditioner to be in refrigeration mode
Refrigeration effect or heating effect during in heating mode are poor.Due to the time of the valve state of air conditioner detection air conditioner
Long, when the valve state for detecting air conditioner is cut-off state, the action that air conditioner carries out protection operation is late, air conditioner
Valve causes air conditioner destruction for cut-off state.On the other hand, the valve state testing result of air conditioner is not allowed
Really, it may appear that the situation protected or leak protection is missed to air conditioner, so as to have impact on user to the using effect of air conditioner and do
Maintenance of the maintenance personal to air conditioner is disturbed.
For air conditioner in correlation technique valve state detection time it is long the problem of, not yet propose effective solve at present
Scheme.
The content of the invention
It is a primary object of the present invention to provide a kind of air conditioner and its valve state detection method and device, at least to solve
The problem of certainly the valve state detection time of air conditioner is long.
To achieve these goals, according to an aspect of the invention, there is provided a kind of valve state detection of air conditioner
Method.The air conditioner includes compressor, inner blower and outer wind turbine, and the valve state detection method of the air conditioner includes：In air-conditioning
After device start, control air conditioner is in the first operating status, wherein, in the first operating status, compressor and outer wind turbine are in
Opening, inner blower are closed；And the valve state of air conditioner is detected in the first operating status to examine
Whether the valve for surveying air conditioner is in cut-off state.
Further, whether air conditioner includes evaporator, detect the valve of air conditioner and include in cut-off state：Detection is steamed
The turn-on temperature of device is sent out, wherein, the turn-on temperature of evaporator is evaporator temperature when air conditioner is started shooting；Detect the fortune of evaporator
Trip temperature, wherein, the running temperature of evaporator is temperature of the evaporator in the operational process of air conditioner；And judge evaporator
Running temperature and the difference of turn-on temperature of evaporator whether be less than or equal to the first preset difference value, wherein, when the fortune of evaporator
When the difference of the turn-on temperature of trip temperature and evaporator is less than or equal to the first preset difference value, determine that the valve of air conditioner is in cut-off
State.
Further, air conditioner further includes condenser, and whether the valve for detecting air conditioner further includes in cut-off state：Inspection
The running temperature of condenser is surveyed, wherein, the running temperature of condenser is temperature of the condenser in the operational process of air conditioner；Inspection
The turn-on temperature of condenser is surveyed, wherein, the turn-on temperature of condenser is temperature of the condenser when air conditioner is started shooting；And judge
Whether the running temperature of condenser and the difference of the turn-on temperature of condenser are less than or equal to the second preset difference value, wherein, work as evaporation
The running temperature of device and the difference of the turn-on temperature of evaporator be less than or equal to the first preset difference value and the running temperature of condenser with
When the difference of the turn-on temperature of condenser is less than or equal to the second preset difference value, determine that the valve of air conditioner is in cut-off state device
When the difference of turn-on temperature is less than or equal to the first preset difference value, determine that the valve of air conditioner is in cut-off state.
Further, judge whether the difference of the running temperature of evaporator and the turn-on temperature of evaporator is less than or equal to first
Preset difference value includes：When air conditioner is in refrigeration mode, the running temperature of evaporator and the turn-on temperature of evaporator are judged
Whether difference is less than or equal to preset difference value A；When air conditioner is in heating mode, the running temperature and evaporator of evaporator are judged
The difference of turn-on temperature whether be less than or equal to preset difference value C, judge the running temperature of condenser and the turn-on temperature of condenser
Difference whether be less than or equal to the second preset difference value include：When air conditioner is in refrigeration mode, the operation temperature of condenser is judged
Whether the difference of degree and the turn-on temperature of condenser is less than or equal to preset difference value B；When air conditioner is in heating mode, judge cold
Whether the running temperature of condenser and the difference of the turn-on temperature of condenser are less than or equal to preset difference value D.
Further, the valve state of air conditioner is detected in the first operating status is with the valve for detecting air conditioner
No to be in after cut-off state, method further includes：Obtain the testing result in the first operating status；If in the first operating status
Detect that the valve of air conditioner is in cut-off state, then control air conditioner to be in the second operating status, wherein, run shape second
State, compressor, outer wind turbine and inner blower are in closed mode；The valve state of air conditioner is examined in the second operating status
Survey and whether cut-off state is in the valve for detecting air conditioner；And obtain the second operating status testing result, wherein,
The testing result of first operating status and be that the valve of air conditioner is in cut-off state in the testing result of the second operating status
When, determine that the valve of air conditioner is in cut-off state.
Further, air conditioner further includes four-way valve, when air conditioner is in heating mode, in the first operating status, and four
Port valve is in off-position.
To achieve these goals, according to another aspect of the present invention, a kind of valve state inspection of air conditioner is additionally provided
Survey device.The air conditioner includes compressor, inner blower and outer wind turbine, and the valve state detection device of the air conditioner includes：First
Control unit, after starting shooting in air conditioner, control air conditioner is in the first operating status, wherein, in the first operating status,
Compressor and outer wind turbine are in opening, and inner blower is closed；And first detection unit, in the first operation
State is detected the valve state of air conditioner so that whether the valve for detecting air conditioner is in cut-off state.
Further, air conditioner includes evaporator, and first detection unit includes：First detection module, evaporates for detecting
The turn-on temperature of device, wherein, the turn-on temperature of evaporator is evaporator temperature when air conditioner is started shooting；Second detection module, is used
In the running temperature of detection evaporator, wherein, the running temperature of evaporator is temperature of the evaporator in the operational process of air conditioner
Degree；And whether first judgment module, the difference for judging the running temperature of evaporator and the turn-on temperature of evaporator are less than
Equal to the first preset difference value, wherein, first detection unit is used for the turn-on temperature for the running temperature and evaporator for working as evaporator
When difference is less than or equal to the first preset difference value, determine that the valve of air conditioner is in cut-off state.
Further, air conditioner further includes condenser, and first detection unit further includes：3rd detection module, for detecting
The running temperature of condenser, wherein, the running temperature of condenser is temperature of the condenser in the operational process of air conditioner；4th
Detection module, for detecting the turn-on temperature of condenser, wherein, the turn-on temperature of condenser is condenser when air conditioner is started shooting
Temperature；And second judgment module, for judge the running temperature of condenser and the turn-on temperature of condenser difference whether
Less than or equal to the second preset difference value, wherein, first detection unit is additionally operable to the start of the running temperature and evaporator when evaporator
The difference of temperature is less than or equal to the running temperature of the first preset difference value and condenser and the difference of the turn-on temperature of condenser is less than
During equal to the second preset difference value, determine that the valve of air conditioner is in cut-off state.
Further, the first judgment module is used for when air conditioner is in refrigeration mode, judges the running temperature of evaporator
Whether it is less than or equal to preset difference value A with the difference of the turn-on temperature of evaporator, when air conditioner is in heating mode, judges to evaporate
Whether the running temperature of device and the difference of the turn-on temperature of evaporator are less than or equal to preset difference value C, and the second judgment module is used to work as
When air conditioner is in refrigeration mode, judge whether the difference of the running temperature of condenser and the turn-on temperature of condenser is less than or equal to
Preset difference value B, when air conditioner is in heating mode, judges the running temperature of condenser and the difference of the turn-on temperature of condenser
Whether preset difference value D is less than or equal to.
Further, the valve state detection device of the air conditioner further includes：First acquisition unit, in the first operation
State is detected the valve state of air conditioner to detect after whether the valve of air conditioner be in cut-off state, obtains the
The testing result of one operating status；Second control unit, the valve for going out air conditioner in the first condition monitoring, which is in, to be cut
Only state, then control air conditioner to be in the second operating status, wherein, in the second operating status, compressor, outer wind turbine and inner blower
It is in closed mode；Second detection unit, for being detected in the second operating status to the valve state of air conditioner to examine
Whether the valve for surveying air conditioner is in cut-off state；And second acquisition unit, for obtaining the detection in the second operating status
As a result, wherein, first detection unit is additionally operable to the testing result in the first operating status and the detection knot in the second operating status
When fruit is that the valve of air conditioner is in cut-off state, determine that the valve of air conditioner is in cut-off state.
Further, the air conditioner of the valve state detection device of the air conditioner further includes four-way valve, when air conditioner is in
During heating mode, in the first operating status, four-way valve is in off-position.
To achieve these goals, according to another aspect of the present invention, a kind of air conditioner is additionally provided, which includes
The valve state detection device of the air conditioner of the present invention.
In the present invention, after air conditioner start, first by controlling air conditioner to be in the first operating status, this
In one operating status, compressor and outer wind turbine are in opening, and inner blower is closed；Then in the first operating status
The valve state of air conditioner is detected so that whether the valve for detecting air conditioner is in cut-off state, the valve for solving air conditioner
The problem of door state detection time is long, and then the effect of the valve state of quick detection air conditioner.
Brief description of the drawings
The attached drawing for forming the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its explanation is used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of the valve state detection method of air conditioner according to a first embodiment of the present invention；
Fig. 2 is the flow chart of the valve state detection method of air conditioner according to a second embodiment of the present invention；
Fig. 3 is the flow chart of the valve state detection method of air conditioner according to a third embodiment of the present invention；And
Fig. 4 is the schematic diagram of the valve state detection device of air conditioner according to embodiments of the present invention.
Embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.Below with reference to the accompanying drawings and the present invention will be described in detail in conjunction with the embodiments.
In order to make those skilled in the art more fully understand application scheme, below in conjunction with the embodiment of the present application
Attached drawing, is clearly and completely described the technical solution in the embodiment of the present application, it is clear that described embodiment is only
The embodiment of the application part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's all other embodiments obtained without making creative work, should all belong to the model of the application protection
Enclose.
It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use
Data can exchange in the appropriate case, so as to embodiments herein described herein.In addition, term " comprising " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing series of steps or unit
Process, method, system, product or equipment are not necessarily limited to those steps clearly listed or unit, but may include without clear
It is listing to Chu or for the intrinsic other steps of these processes, method, product or equipment or unit.
An embodiment of the present invention provides a kind of valve state detection method of air conditioner.The valve state detection of the air conditioner
Method is used to be detected the valve state of air conditioner.
Fig. 1 is the flow chart of the valve state detection method of air conditioner according to a first embodiment of the present invention.Such as Fig. 1 institutes
Show, the valve state detection method of the air conditioner of the embodiment comprises the following steps：
Step S101, after air conditioner start, control air conditioner is in the first operating status, wherein, in the first operation
State, compressor and outer wind turbine are in opening, and inner blower is closed.
Air conditioner includes compressor, inner blower and outer wind turbine.After air conditioner start, control air conditioner is in the first fortune
Row state.For air conditioner in the first operating status, compressor and outer wind turbine are in opening, and at the inner blower of air conditioner
In closed mode.The air conditioner of the embodiment of the present invention further includes four-way valve, it is preferable that when air conditioner is in heating mode,
First operating status, four-way valve are in off-position.
Step S102, is detected the valve state of air conditioner in the first operating status to detect the valve of air conditioner
Whether cut-off state is in.
The valve of air conditioner has a two states during air conditioner is run, including the open mode of valve and valve
Cut-off state.Preferably, when the valve of air conditioner is in open mode, it can prevent that the pressure at expulsion of air conditioner is excessive, make
Air conditioner normal operation, when the valve of air conditioner is in cut-off state, air conditioner pressure at expulsion is excessive, makes air conditioner system
The security risks such as system leakage, and then air conditioner is broken down.After control air conditioner is in the first operating status, to air-conditioning
The valve state of device is detected, to detect whether the valve of air conditioner is in cut-off state, so that it is determined that whether air conditioner goes out
Existing failure.
The air conditioner of the embodiment of the present invention includes evaporator, it is preferable that whether detects the valve of air conditioner in cut-off shape
State includes：Detect the turn-on temperature of evaporator；Detect the running temperature of evaporator；Judge the running temperature and evaporator of evaporator
The difference of turn-on temperature whether be less than or equal to the first preset difference value.Specifically, the turn-on temperature of evaporator exists for evaporator
Temperature when air conditioner is started shooting, running temperature of the detection evaporator when air conditioner is started shooting.Air conditioner passes through detection in start
Power on signal boots up.When air conditioner is started shooting, the steaming of air conditioner is detected by the temperature sensor installed on evaporator
Send out the temperature of device.Started shooting and run for a period of time according to power on signal in air conditioner, the temperature sensor detection on evaporator
The running temperature of evaporator, wherein, the running temperature of evaporator is temperature of the evaporator in the operational process of air conditioner.Examining
After the running temperature for measuring evaporator, judge whether the difference of the running temperature of evaporator and the turn-on temperature of evaporator is less than
Equal to the first preset difference value, when the running temperature and the difference of turn-on temperature of evaporator of evaporator, to be less than or equal to first default poor
During value, determine that the valve of air conditioner is in cut-off state.
The air conditioner of the embodiment of the present invention further includes condenser, it is preferable that whether detects the valve of air conditioner in cut-off
State further includes：Detect the running temperature of condenser；Detect the turn-on temperature of condenser；And judge the running temperature of condenser
Whether it is less than or equal to the second preset difference value with the difference of the turn-on temperature of condenser.Specifically, the running temperature of condenser is
Temperature of the condenser in the operational process of air conditioner, temperature of the detection condenser in the operational process of air conditioner.Condenser
On temperature sensor is installed, when air conditioner is run, pass through temperature sensor detect condenser running temperature.In air conditioner
During start, the turn-on temperature of condenser is detected by the temperature sensor installed on condenser.The turn-on temperature of condenser is
Temperature of the condenser when air conditioner is started shooting.Judge whether the difference of the running temperature of condenser and the turn-on temperature of condenser is small
In equal to the second preset difference value.When the running temperature and the difference of turn-on temperature of evaporator of evaporator, to be less than or equal to first default
Difference, and when the difference of the turn-on temperature of the running temperature of condenser and condenser is less than or equal to the second preset difference value, determine
The valve of air conditioner is in cut-off state.
The operating mode of air conditioner includes refrigeration mode and heating mode.Judge the running temperature and evaporator of evaporator
Whether the difference of turn-on temperature, which is less than or equal to the first preset difference value, includes：When air conditioner is in refrigeration mode, evaporator is judged
Running temperature and the difference of turn-on temperature of evaporator whether be less than or equal to preset difference value A.When air conditioner is in heating mode
When, judge whether the difference of the running temperature of evaporator and the turn-on temperature of evaporator is less than or equal to preset difference value C.Judge condensation
Whether the running temperature of device and the difference of the turn-on temperature of condenser, which are less than or equal to the second preset difference value, includes：When air conditioner is in
During refrigeration mode, judge whether the difference of the running temperature of condenser and the turn-on temperature of condenser is less than or equal to preset difference value B；
When air conditioner is in heating mode, judge whether the difference of the running temperature of condenser and the turn-on temperature of condenser is less than etc.
In preset difference value D.Specifically, when air conditioner is in refrigeration mode, the running temperature and evaporator of evaporator are being judged
The difference of turn-on temperature be less than being equal to preset difference value A, and judge the running temperature of condenser and the start of condenser
When the difference of temperature is less than or equal to preset difference value B, determine that the valve of air conditioner is in cut-off state, wherein, preset difference value A is the
One preset difference value, preset difference value B are the second preset difference value.When air conditioner is in heating mode, the fortune of evaporator is being judged
The difference of the turn-on temperature of trip temperature and evaporator is less than or equal to preset difference value C, and judge the running temperature of condenser with
When the difference of the turn-on temperature of condenser is less than or equal to preset difference value D, determine that the valve of air conditioner is in cut-off state, wherein,
Preset difference value C is the first preset difference value, and preset difference value D is the second preset difference value.
The valve state of air conditioner is detected in the first operating status, is opened that is, being in compressor and outer wind turbine
State is opened, when inner blower is closed, whether the valve for detecting air conditioner is in cut-off state.In the first operating status pair
After the valve of air conditioner is detected, testing result of the valve in the first operating status of air conditioner is obtained.If air conditioner
Valve go out in the first condition monitoring for cut-off state, then control air conditioner to be in the second operating status.Specifically, it is empty
Adjusting device, compressor, outer wind turbine and inner blower are in closed mode in the second operating status.Control compressor, outer wind turbine and
Inner blower is in closed mode, and the valve state of air conditioner is detected, thus detect air conditioner valve whether
In cut-off state, testing result of the valve in the second operating status of air conditioner is obtained.Preferably, in the first operating status
Testing result and when the testing result of the second operating status is that the valve of air conditioner is in cut-off state, determines air conditioner
Valve is in cut-off state, so as to fulfill the valve state of air conditioner is detected exactly.
After the valve state for determining air conditioner is cut-off state, alternatively, when air conditioner is in refrigeration mode, control
The inner blower of air conditioner processed is opened, and air conditioner is run according to default windscreen.When air conditioner is in heating mode, control
The four-way valve of air conditioner powers on, four-way valve commutation.Specifically, compressor sucks low-temp low-pressure by the air intake duct of air conditioner
Refrigerant gas, is then compressed refrigerant gas by the operating band piston of motor, forms the gas of high pressure saturation,
The condenser of air conditioner condenses high pressure saturated gas, then is throttled by the throttling protection device of air conditioner, is passed through
In the evaporator of air conditioner, cooling heat transferring is realized, ultimately form the gas of low-temp low-pressure, so as to fulfill air conditioner climate comfort
Effect.
The embodiment is after air conditioner start, and control air conditioner is in the first operating status, and air conditioner is in the first operation
During state, compressor and outer wind turbine are in opening, and inner blower is closed, in the first operating status to air conditioner
Valve state is detected so that whether the valve for detecting air conditioner is in cut-off state, it is achieved thereby that quickly detecting air conditioner
The effect of valve state, it is excessive to avoid the pressure at expulsion of air conditioner, the destruction caused by air conditioner.
Fig. 2 is the flow chart of the valve state detection method of air conditioner according to a second embodiment of the present invention.Need to illustrate
, the valve state detection method of the air conditioner of the embodiment can be as the valve of the air conditioner of first embodiment of the invention
The preferred embodiment of condition detection method.As shown in Fig. 2, the valve state detection method of the air conditioner of the embodiment is including following
Step：
Step S201, air conditioner refrigeration start.
Air conditioner detects power on signal before start.Air conditioner is after power on signal is detected, according to power on signal
Start air conditioner, and it is refrigeration mode to set the operating mode of air conditioner.
Step S202, compressor are opened.
After air conditioner refrigeration start, the compressor of air conditioner is opened.
Step S203, outer wind turbine are opened.
After air conditioner refrigeration start, the outer wind turbine of air conditioner is opened.
Step S204, inner blower are closed.
After air conditioner refrigeration start, the inner blower of air conditioner is closed, to reach the valve shape of quick detection air conditioner
The effect of state.
Step S205, judges whether the valve of air conditioner is in cut-off state.
Air conditioner includes evaporator and condenser, and evaporator is installed on the indoor unit of air conditioner, and condenser is installed on sky
On the outdoor unit for adjusting device.Alternatively, mounting temperature sensor on evaporator, is detected by the temperature sensor installed on evaporator
The evaporating temperature of evaporator；Mounting temperature sensor on condenser, condensation is detected by the temperature sensor installed on condenser
The condensation temperature of device.
When being run when air conditioner is in refrigeration mode, temperature of the detection evaporator in refrigeration mode, and detection are cold
Temperature of the condenser in refrigeration mode.Specifically, when air conditioner powers on first, evaporator opening in refrigeration mode is detected
Machine temperature, can detect evaporator the opening in refrigeration mode of air conditioner by temperature sensor according to the power on signal of air conditioner
Machine temperature, and the turn-on temperature for recording evaporator is TInner tube 0.Detect turn-on temperature of the condenser in refrigeration mode, Ke Yigen
Turn-on temperature of the condenser in refrigeration mode is detected by temperature sensor according to power on signal, and records the start temperature of condenser
Spend for TOuter tube 0.In the turn-on temperature T of record evaporatorInner tube 0With the turn-on temperature T of record condenserOuter tube 0Afterwards, run in air conditioner
For a period of time, the evaporating temperature to evaporator and the condensation temperature of condenser start continuously to detect.Alternatively, detect at air conditioner
Run time when refrigeration mode, judges whether run time during air conditioner heat-production pattern reaches preset time, this is default
Time when time is in refrigeration mode for air conditioner after stable operation.If it is judged that the run time of air conditioner reaches pre-
If the time, the running temperature of evaporator is detected, temperature of the evaporator in the operational process of air conditioner is detected by temperature sensor
Degree, and the running temperature for recording evaporator is TInner tube.The running temperature of condenser is detected, is detected and condensed by temperature sensor
Temperature of the device in the operational process of air conditioner, and the running temperature for recording condenser is TOuter tube。
Opening is in compressor and outer wind turbine, inner blower is closed down, judges evaporator in refrigeration mould
Whether the temperature and condenser of formula meet preset condition in the temperature of refrigeration mode.Specifically, the operation temperature of evaporator is judged
Whether the difference of degree and the turn-on temperature of evaporator is less than or equal to preset difference value A, judges the running temperature and condenser of condenser
The difference of turn-on temperature whether be less than or equal to preset difference value B.Alternatively, when air conditioner work is in refrigeration mode, to evaporation
The turn-on temperature T of deviceInner tube 0With the running temperature T of evaporatorInner tubeSubtraction is performed, the first result of calculation is obtained, that is, TInner tube 0-
TInner tube；To the running temperature T of condenserOuter tubeWith the turn-on temperature T of condenserOuter tube 0Subtraction is performed, obtains the second result of calculation,
That is, TOuter tube-TOuter tube 0；Judge the first result of calculation TInner tube 0-TInner tubeWhether preset difference value A is less than or equal to, that is, judging TInner tube 0-TInner tube
Whether≤A sets up；Judge whether the second result of calculation is less than or equal to preset difference value B, that is, TOuter tube-TOuter tube 0Whether≤B sets up；Such as
Fruit judges that the first result of calculation is less than or equal to preset difference value A and the second result of calculation is less than or equal to preset difference value B, that is,
TInner tube 0-TInner tube≤ A and TOuter tube-TOuter tube 0≤ B is set up, then judges temperature and condenser of the evaporator in refrigeration mode in refrigeration mode
Temperature meet preset condition, determine that the valve of air conditioner is in cut-off state when air conditioner is in refrigeration mode.
Step S206, compressor are closed, and exogenous wind organ closes.
After the valve for determining air conditioner is in cut-off state when air conditioner is in refrigeration mode, air conditioner is controlled
Compressor, outer wind turbine and inner blower are in closed mode.Compressor, outer wind turbine and inner blower in air conditioner are in closing
During state, step S202 to step S205 is performed again, and the valve state of air conditioner is detected to determine air conditioner again
Valve whether be in cut-off state so that exactly detect air conditioner valve state, air conditioner is protected exactly
Shield.Cut if the compressor, outer wind turbine and inner blower in air conditioner determine that the valve of air conditioner is in when being in closed mode
Only state, then show the fault message of air conditioner by the display of air conditioner.Alternatively, display shows that air conditioner is in system
Because the failure code that the valve of air conditioner is in cut-off state and produces during chill formula.
Step S207, inner blower are opened.
If it is judged that evaporator does not meet default bar in the temperature and condenser of refrigeration mode in the temperature of refrigeration mode
Part, then air conditioner is the failure of cut-off state because of the valve of air conditioner without appearance, controls the inner blower of air conditioner to open, empty
Device is adjusted according to pre-set windscreen normal operation.
The valve state detection method of the air conditioner of the embodiment is started shooting when being in refrigeration mode by air conditioner, and control is empty
The compressor of device is adjusted to open, outer wind turbine is opened, and inner blower is closed, and then judges whether the valve of air conditioner is in cut-off state,
If it is judged that the valve of air conditioner is in cut-off state, then the compressor of air conditioner is controlled to close, exogenous wind organ closes, again right
The state of the valve of air conditioner is detected, if it is judged that the valve of air conditioner is in cut-off state, then controls air conditioner
Inner blower is opened, so as to reach the effect of the valve state of quick detection air conditioner, and then realizes and the timely of air conditioner is protected
Shield.
Fig. 3 is the flow chart of the valve state detection method of air conditioner according to a third embodiment of the present invention.Need to illustrate
, the valve state detection method of the air conditioner of the embodiment can be as the valve of the air conditioner of first embodiment of the invention
The preferred embodiment of condition detection method.As shown in figure 3, the valve state detection method of the air conditioner of the embodiment is including following
Step：
Step S301, air conditioner heat-production start.
Air conditioner detects power on signal before start.Air conditioner is after power on signal is detected, according to power on signal
Start air conditioner, and it is heating mode to set the operating mode of air conditioner.
Step S302, compressor are opened.
After air conditioner heat-production start, the compressor of air conditioner is opened.
Step S303, outer wind turbine are opened.
After air conditioner heat-production start, the outer wind turbine of air conditioner is opened.
Step S304, inner blower are closed.
After air conditioner heat-production start, the inner blower of air conditioner is closed, to reach the valve shape of quick detection air conditioner
The effect of state.
Step S305, four-way valve do not power on.
After air conditioner heat-production start, the four-way valve of air conditioner does not power on, to reach the valve of quick detection air conditioner
The effect of state.
Step S306, judges whether the valve of air conditioner is in cut-off state.
When being run when air conditioner is in heating mode, temperature of the detection evaporator in heating mode, and detection are cold
Temperature of the condenser in heating mode.Specifically, when air conditioner powers on first, evaporator opening in heating mode is detected
Machine temperature, and the turn-on temperature for recording evaporator is TInner tube 0.Turn-on temperature of the condenser in heating mode is detected, and is remembered
The turn-on temperature for recording condenser is TOuter tube 0.In the turn-on temperature T of record evaporatorInner tube 0With the turn-on temperature T of record condenserOuter tube 0
Afterwards, a period of time is run in air conditioner, the condensation temperature of evaporating temperature and condenser to evaporator starts continuously to detect.Can
Selection of land, detection air conditioner are in run time during heating mode, judge that run time when air conditioner is in heating mode is
It is no to reach preset time, time when this preset time is in heating mode for air conditioner after stable operation.If it is judged that
The run time of air conditioner reaches preset time, detects the running temperature of evaporator, and detecting evaporator by temperature sensor exists
Temperature in the operational process of air conditioner, and the running temperature for recording evaporator is TInner tube.The running temperature of condenser is detected,
Temperature of the condenser in the operational process of air conditioner is detected by temperature sensor, and the running temperature for recording condenser is
TOuter tube。
Opening is in compressor and outer wind turbine, inner blower is closed, and when four-way valve does not power on, judges to steam
Whether hair device meets preset condition in the temperature and condenser of heating mode in the temperature of heating mode.Specifically, in air-conditioning
When device is in heating mode, judge whether the difference of the running temperature of evaporator and the turn-on temperature of evaporator is less than or equal to preset
Difference C, judges whether the difference of the running temperature of condenser and the turn-on temperature of condenser is less than or equal to preset difference value D.It is optional
Ground, to the running temperature T of evaporatorInner tubeWith the turn-on temperature T of evaporatorInner tube 0Subtraction is performed, obtains the 3rd result of calculation,
That is, TInner tube-TInner tube 0；To the turn-on temperature T of condenserOuter tube 0With the running temperature T of condenserOuter tubeSubtraction is performed, obtains the 4th
Result of calculation, that is, TOuter tube 0-TOuter tube；Judge the 3rd result of calculation TInner tube-TInner tube 0Whether preset difference value C is less than or equal to, that is, judging
TInner tube-TInner tube 0Whether≤C sets up；Judge whether the 4th result of calculation is less than or equal to preset difference value D, that is, TOuter tube 0-TOuter tubeWhether≤D
Set up；If it is judged that the 3rd result of calculation is less than or equal to preset difference value C and the 4th result of calculation is less than or equal to preset difference value D,
That is, TInner tube -TInner tube 0≤ C and TOuter tube 0-TOuter tube≤ D is set up, then judges that evaporator is being made in the temperature and condenser of heating mode
The temperature of heat pattern meets preset condition, determines that the valve of air conditioner is in cut-off state when air conditioner is in heating mode.
Due to when inner blower is closed, the temperature difference of the inner tube gently between outer tube temperature will be more significant, thus, energy
Enough realize the quick detection of valve state.
Step S307, compressor are closed, and exogenous wind organ closes.
After the valve for determining air conditioner is in cut-off state when air conditioner is in heating mode, air conditioner is controlled
Compressor, outer wind turbine and inner blower are in closed mode.Compressor, outer wind turbine and inner blower in air conditioner are in closing
During state, step S302 to step S306 is performed again, and the valve state of air conditioner is detected to determine air conditioner again
Valve whether be in cut-off state so that exactly detect air conditioner valve state, air conditioner is protected exactly
Shield.Cut if the compressor, outer wind turbine and inner blower in air conditioner determine that the valve of air conditioner is in when being in closed mode
Only state, then show the fault message of air conditioner by the display of air conditioner.Alternatively, display shows that air conditioner is in system
Because the failure code that the valve of air conditioner is in cut-off state and produces during heat pattern.
Step S308, four-way valve power on.
If it is judged that evaporator does not meet default bar in the temperature and condenser of heating mode in the temperature of heating mode
Part, then air conditioner do not occur because air conditioner valve be cut-off state failure, control the four-way valve of air conditioner to power on, air-conditioning
The four-way valve of device powers on.
The valve state detection method of the air conditioner of the embodiment is started shooting when being in heating mode by air conditioner, and control is empty
Adjust the compressor of device to open, outer wind turbine is opened, and inner blower is closed, and four-way valve does not power on, then judge air conditioner valve whether
In cut-off state, if it is judged that the valve of air conditioner is in cut-off state, then the compressor of air conditioner is controlled to close, exogenous wind
Organ closes, and the state of the valve of air conditioner is detected again, if it is judged that the valve of air conditioner is in cut-off state, then
The four-way valve of control air conditioner does not power on, so that reached the effect of the valve state of quick detection air conditioner, and then realization pair
The accurate protection of air conditioner.
It should be noted that step shown in the flowchart of the accompanying drawings can be in such as a group of computer-executable instructions
Performed in computer system, although also, show logical order in flow charts, in some cases, can be with not
The order being same as herein performs shown or described step.
The embodiment of the present invention additionally provides a kind of valve state detection device of air conditioner.It should be noted that the implementation
The valve state detection device of the air conditioner of example can be used for the valve state detection side for performing the air conditioner of the embodiment of the present invention
Method.
Fig. 4 is the schematic diagram of the valve state detection device of air conditioner according to embodiments of the present invention.The sky of the embodiment
Device is adjusted to include compressor, inner blower and outer wind turbine.As shown in figure 4, the valve state detection device of the air conditioner includes：First control
Unit 10 processed and first detection unit 20.
First control unit 10, after starting shooting in air conditioner, control air conditioner is in the first operating status, wherein,
In the first operating status, compressor and outer wind turbine are in opening, and inner blower is closed.Preferably, air conditioner is also
Including four-way valve, when air conditioner is in heating mode, in the first operating status, four-way valve is in off-position.
First detection unit 20, for being detected the valve state of air conditioner to detect air-conditioning in the first operating status
Whether the valve of device is in cut-off state.
The air conditioner of the embodiment of the present invention includes evaporator, and first detection unit 20 includes first detection module, the second inspection
Survey module and the first judgment module.Specifically, first detection module, for detecting the turn-on temperature of evaporator, evaporator
Turn-on temperature is evaporator temperature when air conditioner is started shooting；Second detection module, for detecting the running temperature of evaporator, evaporation
The running temperature of device is temperature of the evaporator in the operational process of air conditioner；First judgment module, for judging evaporator
Whether the difference of the turn-on temperature of running temperature and evaporator is less than or equal to the first preset difference value, it is preferable that the first judgment module
For when air conditioner is in refrigeration mode, judging whether the difference of the running temperature of evaporator and the turn-on temperature of evaporator is small
In equal to preset difference value A, when air conditioner is in heating mode, the running temperature of evaporator and the turn-on temperature of evaporator are judged
Difference whether be less than or equal to preset difference value C.First detection unit 10 is used to work as the running temperature of evaporator and opening for evaporator
When the difference of machine temperature is less than or equal to the first preset difference value, determine that the valve of air conditioner is in cut-off state.
The air conditioner of the embodiment of the present invention further includes condenser, and first detection unit 20 further includes：3rd detection module, the
Four detection modules and the second judgment module.Specifically, the 3rd detection module, for detecting the running temperature of condenser, condensation
The running temperature of device is temperature of the condenser in the operational process of air conditioner；4th detection module, for detecting condenser
Turn-on temperature, wherein, the turn-on temperature of condenser is temperature of the condenser when air conditioner is started shooting；Second judgment module, is used for
Judge whether the difference of the running temperature of condenser and the turn-on temperature of condenser is less than or equal to the second preset difference value.Preferably,
Second judgment module is used for when air conditioner is in refrigeration mode, judges the running temperature of condenser and the turn-on temperature of condenser
Difference whether be less than or equal to preset difference value B, when air conditioner is in heating mode, judge running temperature and the condensation of condenser
Whether the difference of the turn-on temperature of device is less than or equal to preset difference value D.First detection unit 20 is additionally operable to the operation temperature when evaporator
Spend and be less than or equal to the first preset difference value and the running temperature of condenser and opening for condenser with the difference of the turn-on temperature of evaporator
When the difference of machine temperature is less than or equal to the second preset difference value, determine that the valve of air conditioner is in cut-off state.
The air conditioner of the embodiment of the present invention further includes first acquisition unit, the second control unit, second detection unit and
Two acquiring units.Specifically, first acquisition unit, for being detected in the first operating status to the valve state of air conditioner
To detect the valve of air conditioner whether after cut-off state, the testing result in the first operating status is obtained；Second control
Unit, the valve for going out air conditioner in the first condition monitoring are in cut-off state, then control air conditioner to be in the second fortune
Row state, wherein, in the second operating status, compressor, outer wind turbine and inner blower are in closed mode；Second detection unit,
For the valve to detect air conditioner to be detected to the valve state of air conditioner in the second operating status whether in cut-off shape
State；Second acquisition unit, for obtaining the testing result in the second operating status.First detection unit 20 is additionally operable in the first fortune
The testing result of row state and when the testing result of the second operating status is that the valve of air conditioner is in cut-off state, determines
The valve of air conditioner is in cut-off state.
For example, air conditioner detects power on signal before start.Air conditioner is after power on signal is detected, root
Start air conditioner according to power on signal, the compressor of air conditioner is opened by the first control unit 10, outer wind turbine is opened, and outer wind turbine is opened
Opening, inner blower is closed, and when the operating mode of air conditioner is heating mode, the first control unit 10 control four-way valve does not power on,
To reach the effect of the valve state of quick detection air conditioner.Air conditioner includes evaporator and condenser, and evaporator is installed on sky
On the indoor unit for adjusting device, condenser is installed in outdoor unit of the air conditioner.When being run when air conditioner is in refrigeration mode, first
Detection unit 20 detects the temperature of evaporator, and the temperature of detection condenser.Specifically, when air conditioner powers on first,
The turn-on temperature of evaporator is detected by first detection module, and the turn-on temperature for recording evaporator is TInner tube 0.Pass through the 3rd
Detection module detects the turn-on temperature of condenser, and the turn-on temperature for recording condenser is TOuter tube 0.In opening for record evaporator
Machine temperature TInner tube 0With the turn-on temperature T of record condenserOuter tube 0Afterwards, a period of time, the evaporation to evaporator are run in air conditioner
Temperature and the condensation temperature of condenser start continuously to detect, and the running temperature of evaporator is detected by the second detection module, and
The running temperature for recording evaporator is TInner tube.The running temperature of condenser is detected by the 4th detection module, and records condensation
The running temperature of device is TOuter tube。
Alternatively, when air conditioner is in refrigeration mode, opening is in compressor and outer wind turbine, inner blower, which is in, to close
Under closed state, judge whether evaporator meets preset condition in the temperature and condenser of refrigeration mode in the temperature of refrigeration mode.
Specifically, whether the difference for judging the running temperature of evaporator and the turn-on temperature of evaporator by the first judgment module is less than
Equal to preset difference value A, the difference for judging the running temperature of condenser and the turn-on temperature of condenser by the second judgment module is
It is no to be less than or equal to preset difference value B.To the turn-on temperature T of evaporatorInner tube 0With the running temperature T of evaporatorInner tubePerform subtraction,
The first result of calculation is obtained, that is, TInner tube 0-TInner tube；To the running temperature T of condenserOuter tubeWith the turn-on temperature T of condenserOuter tube 0Perform
Subtraction, obtains the second result of calculation, that is, TOuter tube-TOuter tube 0；First result of calculation T is judged by the first judgment moduleInner tube 0-
TInner tubeWhether preset difference value A is less than or equal to, that is, judging TInner tube 0-TInner tubeWhether≤A sets up；Judge by the second judgment module
Whether two result of calculations are less than or equal to preset difference value B, that is, TOuter tube-TOuter tube 0Whether≤B sets up；If pass through the first judgment module
Judge that the first result of calculation is less than or equal to preset difference value A and is less than or equal to by second the second result of calculation of judgment module default
Difference B, that is, TInner tube 0-TInner tube≤ A and TOuter tube-TOuter tube 0≤ B is set up, then evaporator is being made in the temperature and condenser of refrigeration mode
The temperature of chill formula meets preset condition.First detection unit 20 is being freezed in evaporator in the temperature and condenser of refrigeration mode
After the temperature of pattern meets preset condition, determine that the valve of air conditioner is in cut-off shape when air conditioner is in refrigeration mode
State.
Alternatively, when air conditioner is in heating mode, opening is in compressor and outer wind turbine, inner blower, which is in, to close
Closed state, and when four-way valve does not power on, judge evaporator heating mode temperature and condenser heating mode temperature
Whether preset condition is met.Specifically, the running temperature of evaporator and the start of evaporator are judged by the first judgment module
Whether the difference of temperature is less than or equal to preset difference value C, judges the running temperature of condenser and the difference of the turn-on temperature of condenser
Whether preset difference value D is less than or equal to.Alternatively, to the running temperature T of evaporatorInner tubeWith the turn-on temperature T of evaporatorInner tube 0Perform
Subtraction, obtains the 3rd result of calculation, that is, TInner tube-TInner tube 0；To the turn-on temperature T of condenserOuter tube 0With the operation temperature of condenser
Spend TOuter tubeSubtraction is performed, the 4th result of calculation is obtained, that is, TOuter tube 0-TOuter tube；3rd meter is judged by the first judgment module
Calculate result TInner tube-TInner tube 0Whether preset difference value C is less than or equal to, that is, judging TInner tube-TInner tube 0Whether≤C sets up；Judge by second
Module judges whether the 4th result of calculation is less than or equal to preset difference value D, that is, TOuter tube 0-TOuter tubeWhether≤D sets up；It is if logical
Cross the first judgment module and judge that the 3rd result of calculation is less than or equal to preset difference value C and judges the by the second judgment module
Four result of calculations are less than or equal to preset difference value D, that is, TInner tube-TInner tube 0≤ C and TOuter tube 0-TOuter tube≤ D is set up, then evaporator is in heating mould
The temperature and condenser of formula meet preset condition in the temperature of heating mode.First detection unit 20 is judging that evaporator making
The temperature and condenser of heat pattern determine the valve of air conditioner in air conditioner after the temperature of heating mode meets preset condition
Cut-off state is in during in heating mode.
After the state of valve of air conditioner is determined, detection of the air conditioner in the first operating status is obtained by acquiring unit
As a result, the compressor, outer wind turbine and the inner blower that control air conditioner by the second control unit are in closed mode.In air conditioner
Compressor, outer wind turbine and inner blower when being in the second operating status of closed mode, by second detection unit to air-conditioning
The valve state of device is detected so that whether the valve for determining air conditioner is in cut-off state.Obtained by the 3rd acquiring unit
The testing result of second operating status, determines whether the valve of air conditioner is in cut-off state, so as to detect air conditioner exactly
Valve state, air conditioner is protected exactly.Preferably, first detection unit 20 is additionally operable in the first operating status
Testing result and when the testing result of the second operating status is that the valve of air conditioner is in cut-off state, determine air conditioner
Valve be in cut-off state.
After first detection unit 20 determines that the valve of air conditioner is in cut-off state, shown by the display of air conditioner
Show the fault message of air conditioner.If it is judged that evaporator refrigeration mode temperature and condenser refrigeration mode temperature not
Meet preset condition, then air conditioner is without the failure that the valve occurred because of air conditioner is cut-off state, when air conditioner is in system
During chill formula, the inner blower of air conditioner is controlled to open, air conditioner is according to pre-set windscreen normal operation, at air conditioner
When heating mode, the four-way valve of air conditioner is controlled to power on, four-way valve commutation.
The valve state detection device of the air conditioner of the embodiment after air conditioner start, is controlled by the first control unit
Air conditioner processed is in the first operating status, and for air conditioner in the first operating status, compressor and outer wind turbine are in opening, interior
Wind turbine is closed, and the valve state of air conditioner is detected to examine in the first operating status by first detection unit
Whether the valve for surveying air conditioner is in cut-off state, so as to reach the effect of the valve state of quick detection air conditioner.
The embodiment of the present invention additionally provides a kind of air conditioner, which includes the valve of the air conditioner of the embodiment of the present invention
Condition checkout gear.
The air conditioner of the embodiment of the present invention opens the compressor of air conditioner and outer wind turbine, interior wind when in refrigeration mode
Machine is first not turned on, it is possible to achieve quickly to the detection of the valve state of air conditioner, while is avoided the occurrence of because environment temperature, humidity
Influence to air conditioner parameter, causes situation about being protected by mistake to air conditioner occur.When air conditioner is in refrigeration mode, open empty
The compressor and outer wind turbine, inner blower for adjusting device are first not turned on, and the four-way valve of air conditioner does not power on first, and air conditioner is still in refrigeration
The operating status of pattern, it is possible to achieve the quick detection to the valve of air conditioner, so that the protection to air conditioner is more timely, keeps away
Exempt to occur because valve causes pressure at expulsion excessive for cut-off state, air conditioner is damaged.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed
Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
Performed in the storage device by computing device, either they are fabricated to respectively each integrated circuit modules or by they
In multiple modules or step be fabricated to single integrated circuit module to realize.In this way, the present invention be not restricted to it is any specific
Hardware and software combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (13)
1. the valve state detection method of a kind of air conditioner, it is characterised in that the air conditioner includes compressor, inner blower and outer
Wind turbine, the described method includes：
After air conditioner start, the air conditioner is controlled to be in the first operating status, wherein, run shape described first
State, the compressor and the outer wind turbine are in opening, and the inner blower is closed；And
The valve state of the air conditioner is detected in first operating status is with the valve for detecting the air conditioner
It is no to be in cut-off state；
Wherein, the air conditioner includes：Evaporator and condenser, wherein, when running temperature and the evaporation of the evaporator
The difference of the turn-on temperature of device is less than or equal to opening for the first preset difference value and the running temperature of the condenser and the condenser
When the difference of machine temperature is less than or equal to the second preset difference value, determine that the valve of the air conditioner is in cut-off state；
Wherein, the turn-on temperature of the evaporator is evaporator temperature when the air conditioner is started shooting, the evaporator
Running temperature is temperature of the evaporator in the operational process of the air conditioner, and the running temperature of the condenser is described
Temperature of the condenser in the operational process of the air conditioner, the turn-on temperature of the condenser are the condenser in the sky
Adjust temperature during device start.
2. according to the method described in claim 1, it is characterized in that, whether the valve for detecting the air conditioner is in cut-off state
Including：
Detect the turn-on temperature of the evaporator；
Detect the running temperature of the evaporator；And
Judge whether the difference of the running temperature of the evaporator and the turn-on temperature of the evaporator is less than or equal to described first
Preset difference value.
3. according to the method described in claim 2, it is characterized in that, whether the valve for detecting the air conditioner is in cut-off state
Further include：
Detect the running temperature of the condenser；
Detect the turn-on temperature of the condenser；And
Judge whether the difference of the running temperature of the condenser and the turn-on temperature of the condenser is less than or equal to described second
Preset difference value.
4. according to the method described in claim 3, it is characterized in that,
Judge whether the difference of the running temperature of the evaporator and the turn-on temperature of the evaporator is default less than or equal to first
Difference includes：
When the air conditioner is in refrigeration mode, the running temperature of the evaporator and the turn-on temperature of the evaporator are judged
Difference whether be less than or equal to preset difference value A；
When the air conditioner is in heating mode, the running temperature of the evaporator and the turn-on temperature of the evaporator are judged
Difference whether be less than or equal to preset difference value C,
Judge whether the difference of the running temperature of the condenser and the turn-on temperature of the condenser is default less than or equal to second
Difference includes：
When the air conditioner is in refrigeration mode, the running temperature of the condenser and the turn-on temperature of the condenser are judged
Difference whether be less than or equal to preset difference value B；
When the air conditioner is in heating mode, the running temperature of the condenser and the turn-on temperature of the condenser are judged
Difference whether be less than or equal to preset difference value D.
5. according to the method described in claim 2, it is characterized in that, in first operating status to the valve of the air conditioner
State be detected with detect the air conditioner valve whether be in cut-off state after, the method further includes：
Obtain the testing result in first operating status；
If the valve for going out the air conditioner in first condition monitoring is in cut-off state, the air conditioner is controlled
In the second operating status, wherein, it is equal in second operating status, the compressor, the outer wind turbine and the inner blower
It is closed；
The valve state of the air conditioner is detected in second operating status is with the valve for detecting the air conditioner
It is no to be in cut-off state；And
The testing result in second operating status is obtained,
Wherein, the testing result in first operating status and the testing result in second operating status are the sky
When adjusting the valve of device to be in cut-off state, determine that the valve of the air conditioner is in cut-off state.
6. according to the method described in claim 1, it is characterized in that, the air conditioner further includes four-way valve, when the air conditioner
During in heating mode, in first operating status, the four-way valve is in off-position.
7. the valve state detection device of a kind of air conditioner, it is characterised in that the air conditioner includes compressor, inner blower and outer
Wind turbine, described device include：
First control unit, for after air conditioner start, controlling the air conditioner to be in the first operating status, its
In, in first operating status, the compressor and the outer wind turbine are in opening, and the inner blower, which is in, closes shape
State；And
First detection unit, for being detected the valve state of the air conditioner to detect in first operating status
Whether the valve for stating air conditioner is in cut-off state；
Wherein, the air conditioner includes：Evaporator and condenser, wherein, when running temperature and the evaporation of the evaporator
The difference of the turn-on temperature of device is less than or equal to opening for the first preset difference value and the running temperature of the condenser and the condenser
When the difference of machine temperature is less than or equal to the second preset difference value, determine that the valve of the air conditioner is in cut-off state；
Wherein, the turn-on temperature of the evaporator is evaporator temperature when the air conditioner is started shooting, the evaporator
Running temperature is temperature of the evaporator in the operational process of the air conditioner, and the running temperature of the condenser is described
Temperature of the condenser in the operational process of the air conditioner, the turn-on temperature of the condenser are the condenser in the sky
Adjust temperature during device start.
8. device according to claim 7, it is characterised in that the first detection unit includes：
First detection module, for detecting the turn-on temperature of the evaporator；
Second detection module, for detecting the running temperature of the evaporator；And
First judgment module, for judge the running temperature of the evaporator and the turn-on temperature of the evaporator difference whether
Less than or equal to first preset difference value.
9. device according to claim 8, it is characterised in that the first detection unit further includes：
3rd detection module, for detecting the running temperature of the condenser；
4th detection module, for detecting the turn-on temperature of the condenser；And
Second judgment module, for judge the running temperature of the condenser and the turn-on temperature of the condenser difference whether
Less than or equal to second preset difference value.
10. device according to claim 9, it is characterised in that
First judgment module be used for when the air conditioner be in refrigeration mode, judge the evaporator running temperature and
Whether the difference of the turn-on temperature of the evaporator is less than or equal to preset difference value A, when the air conditioner is in heating mode, sentences
Whether the running temperature of the evaporator of breaking and the difference of the turn-on temperature of the evaporator are less than or equal to preset difference value C,
Second judgment module be used for when the air conditioner be in refrigeration mode, judge the condenser running temperature and
Whether the difference of the turn-on temperature of the condenser is less than or equal to preset difference value B, when the air conditioner is in heating mode, sentences
Whether the running temperature of the condenser of breaking and the difference of the turn-on temperature of the condenser are less than or equal to preset difference value D.
11. device according to claim 8, it is characterised in that described device further includes：
First acquisition unit, for being detected the valve state of the air conditioner to detect in first operating status
Whether the valve for stating air conditioner is in after cut-off state, obtains the testing result in first operating status；
Second control unit, the valve for going out the air conditioner in first condition monitoring are in cut-off state, then
The air conditioner is controlled to be in the second operating status, wherein, in second operating status, the compressor, the outer wind turbine
Closed mode is in the inner blower；
Second detection unit, for being detected the valve state of the air conditioner to detect in second operating status
Whether the valve for stating air conditioner is in cut-off state；And
Second acquisition unit, for obtaining the testing result in second operating status,
Wherein, the first detection unit is additionally operable to run shape in the testing result of first operating status and described second
When the testing result of state is that the valve of the air conditioner is in cut-off state, determine that the valve of the air conditioner is in cut-off shape
State.
12. device according to claim 7, it is characterised in that the air conditioner further includes four-way valve, when the air conditioner
During in heating mode, in first operating status, the four-way valve is in off-position.
A kind of 13. air conditioner, it is characterised in that the valve shape including the air conditioner described in any one in claim 7 to 12
State detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510725690.1A CN105387559B (en) | 2015-10-28 | 2015-10-28 | Air conditioner and its valve state detection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN113124539A (en) * | 2021-05-14 | 2021-07-16 | 宁波奥克斯电气股份有限公司 | Automatic protection control method and device for unopened air conditioner valve and air conditioner |
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