CN105674651A - Air conditioner and method for regulating content of refrigerant of air conditioner - Google Patents
Air conditioner and method for regulating content of refrigerant of air conditioner Download PDFInfo
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- CN105674651A CN105674651A CN201610089598.5A CN201610089598A CN105674651A CN 105674651 A CN105674651 A CN 105674651A CN 201610089598 A CN201610089598 A CN 201610089598A CN 105674651 A CN105674651 A CN 105674651A
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- heat exchanger
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- conditioner
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner and a method for regulating content of a refrigerant of the air the conditioner. The air conditioner comprises an outdoor unit and an indoor unit; the outdoor unit comprises a compressor, an outdoor heat exchanger and a throttle valve; the indoor unit comprises an indoor heat exchanger and an air shutting valve; one end of the outdoor heat exchanger is connected with one end of the indoor heat exchanger through the throttle valve; and the other end of the indoor heat exchanger is connected with the other end of the outdoor heat exchanger through the air shutting vale and the compressor. The method comprises the following steps: after a stop instruction is received, controlling the compressor to run according to a preset frequency, and cutting off the throttle valve; after first preset time is delayed, controlling the compressor to stop, and cutting off the air shutting valve. The method is capable of blocking the refrigerant in the outdoor unit to the greatest extent, and therefore the content of the refrigerant in the indoor unit is reduced, and safety of a user at the indoor side is further ensured.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly the control method of a kind of air-conditioner and refrigerant content thereof.
Background technology
In order to tackle Global climate change, in recent years to ozone layer had the refrigerant that destroys and easily cause greenhouse effects gradually byRestriction is used, and environment-friendly type cooling medium is gradually by promotion and application. But the environment-friendly type cooling medium of main flow is as R290, R32 etc. at presentHave certain potential safety hazard, the main preventive means that therefore uses environment-friendly type cooling medium is to control charging amount, with what ensure to fillEven refrigerant all reveal in room, its concentration by lower than can quick-fried concentration range 50%.
But the environment for use more complicated of air-conditioner conventionally, if the usage space of air-conditioner is narrow and small, or around has easily, in the time that the refrigerant in air-conditioner occurs to reveal, if having little time at short notice diffusion, will there is peace in combustion explosive materials etc.Full hidden danger.
Summary of the invention
The present invention is intended to solve at least to a certain extent one of technical problem in correlation technique. For this reason, one of the present inventionObject is to propose the control method of refrigerant content in a kind of air-conditioner, refrigerant can be locked in off-premises station as much as possible,Thereby the refrigerant content in reduction indoor set, guarantee indoor user's safety.
Another object of the present invention is to propose a kind of air-conditioner.
For achieving the above object, the present invention on the other hand embodiment has proposed the control method of refrigerant content in a kind of air-conditioner,Described air-conditioner comprises off-premises station and indoor set, and described off-premises station comprises compressor, outdoor heat exchanger and choke valve, described chamberInterior machine comprises indoor heat exchanger and pass air valve, and one end of described outdoor heat exchanger is by described choke valve and described indoor heat exchangerOne end be connected, the other end of described indoor heat exchanger is by described pass air valve and described compressor and described outdoor heat exchangerThe other end is connected, and said method comprising the steps of: receiving after halt instruction, controlling described compressor according to frequently defaultRate operation, and close described choke valve; And after time delay the first Preset Time, control described compressor shutdown, and close instituteState pass air valve.
The control method of the air-conditioner of the embodiment of the present invention and refrigerant content thereof, is receiving after halt instruction, controls compressorAccording to predeterminated frequency operation, and close choke valve, after time delay the first Preset Time, control compressor shutdown, and gas is closed the border in passValve, so that refrigerant is locked in off-premises station as much as possible, thereby reduces the refrigerant content in indoor set, ensures indoor userSafety.
According to one embodiment of present invention, described the first Preset Time according to the volume of described air-conditioner, refrigerant type andCoolant injection amount is obtained.
According to one embodiment of present invention, the control method of refrigerant content in above-mentioned air-conditioner, also comprises: Real-time ObtainingRefrigerant concentration in described indoor heat exchanger, and judge whether described refrigerant concentration is less than preset concentration; And if described coldMatchmaker's concentration is less than described preset concentration, controls described compressor shutdown, and closes described pass air valve.
According to one embodiment of present invention, the control method of refrigerant content in above-mentioned air-conditioner, also comprises: Real-time ObtainingThe outlet temperature of described outdoor heat exchanger, and judge whether the temperature variation of described outlet temperature is less than default variable quantity; AsThe variable quantity of the described outlet temperature of fruit is less than described default variable quantity and continues the second Preset Time, controls described compressor and stopsMachine, and close described pass air valve.
According to one embodiment of present invention, described the second Preset Time obtains according to the volume of described air-conditioner.
For achieving the above object, the present invention on the other hand embodiment has proposed a kind of air-conditioner, comprises off-premises station and indoor set,Described off-premises station comprises compressor, outdoor heat exchanger and choke valve, and described indoor set comprises indoor heat exchanger and closes air valve, instituteOne end of stating outdoor heat exchanger is connected with one end of described indoor heat exchanger by described choke valve, described indoor heat exchanger separatelyOne end is connected with the other end of described outdoor heat exchanger with described compressor by described pass air valve, and described air-conditioner also comprises:Control module, described control module, for receiving after halt instruction, is controlled described compressor and is moved according to predeterminated frequency,And close described choke valve, and after time delay the first Preset Time, control described compressor shutdown, and close described pass air valve.
The air-conditioner of the embodiment of the present invention, control module is receiving after halt instruction, controls compressor and transports according to predeterminated frequencyOK, and close choke valve, after time delay the first Preset Time, control compressor shutdown, and close and close the border air valve, with by refrigerant to the greatest extentPossible is locked in off-premises station, thereby reduces the refrigerant content in indoor set, ensures indoor user's safety.
According to one embodiment of present invention, described the first Preset Time according to the volume of described air-conditioner, refrigerant type andCoolant injection amount is obtained.
According to one embodiment of present invention, above-mentioned air-conditioner, also comprises: the first acquisition module, and for Real-time Obtaining instituteState the refrigerant concentration in indoor heat exchanger, wherein, described control module judges whether described refrigerant concentration is less than preset concentration,And in the time that described refrigerant concentration is less than described preset concentration, control described compressor shutdown, and close described pass air valve.
According to one embodiment of present invention, above-mentioned air-conditioner, also comprises: the second acquisition module, and for Real-time Obtaining instituteState the outlet temperature of outdoor heat exchanger, wherein, described control module judges whether the temperature variation of described outlet temperature is less thanDefault variable quantity, and in the time that the variable quantity of described outlet temperature is less than described default variable quantity and continues the second Preset Time, controlMake described compressor shutdown, and close described pass air valve.
According to one embodiment of present invention, described the second Preset Time obtains according to the volume of described air-conditioner.
Brief description of the drawings
Fig. 1 is the flow chart of the control method of refrigerant content in air-conditioner according to an embodiment of the invention.
Fig. 2 is the structural representation of air-conditioner according to an embodiment of the invention.
Fig. 3 is the block diagram of air-conditioner according to an embodiment of the invention.
Fig. 4 is the block diagram of air-conditioner in accordance with another embodiment of the present invention.
Detailed description of the invention
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, wherein identical from start to finishOr similarly label represents same or similar element or has the element of identical or similar functions. Below by retouching with reference to accompanying drawingThe embodiment stating is exemplary, is intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
Describe with reference to the accompanying drawings according to the air-conditioner of embodiment of the present invention proposition and the control method of refrigerant content thereof.
Fig. 1 is the flow chart of the control method of refrigerant content in air-conditioner according to an embodiment of the invention.
In an embodiment of the present invention, as shown in Figure 2, air-conditioner comprises off-premises station and indoor set, off-premises station comprise compressor,Outdoor heat exchanger and choke valve, indoor set comprise indoor heat exchanger and close air valve, one end of outdoor heat exchanger by choke valve withOne end of indoor heat exchanger is connected, and the other end of indoor heat exchanger is by closing the other end of air valve and compressor and outdoor heat exchangerBe connected.
As shown in Figure 1, in this air-conditioner, the control method of refrigerant content comprises the following steps:
S1, is receiving after halt instruction, controls compressor and moves according to predeterminated frequency, and close choke valve.
S2, after time delay the first Preset Time, control compressor shutdown, and air valve is closed the border in pass. Wherein, the first Preset Time canTo obtain according to the volume of air-conditioner, refrigerant type and coolant injection amount.
Particularly, in order to alleviate the destruction of climate warming and ozone layer, environment-friendly type cooling medium is gradually by promotion and application. According to orderPopularization progress within the scope of former world, some new refrigerants such as R32, R290, R161 and HFO-1234yf may be in futureThe interior alternative as main flow of a period of time. But what these environment-friendly type cooling mediums had has inflammable and explosive property etc., therefore, orderThe main preventive means of front these environment-friendly type cooling mediums of use is to control charging amount, even so that filled refrigerant all reveal in roomBetween in, its concentration also by lower than can quick-fried concentration range 50%.
But, the environment for use more complicated of air-conditioner conventionally, if the installation environment local space of air-conditioner is narrow and small, orThere is equipment of Flammable and Explosive Materials etc. around, in the time that the refrigerant in air-conditioner occurs to reveal, if having little time at short notice diffusion,To there is potential safety hazard. Consider the needs of heat exchange, the off-premises station of air-conditioner is generally arranged on outside User Activity place, diffusionWith flammable environment relative ideal. Therefore, in an embodiment of the present invention, before air-conditioner is shut down, refrigerant is drawn into off-premises stationIn and block, to improve indoor user's safety.
Particularly, receiving after halt instruction, controlling compressor and move according to predeterminated frequency, and close choke valve, withMake refrigerant constantly flow to off-premises station from indoor set, because choke valve is in closed condition, therefore refrigerant will be locked in throttlingIn the pipeline and outdoor heat exchanger of valve front end. Wherein, predeterminated frequency can be for receiving halt instruction previous moment compressorRunning frequency, it is constant that compressor can keep current running frequency, can be also predefined other frequencies, concreteCan set according to the type of air-conditioner and refrigerant.
When compressor moves with predeterminated frequency after the first Preset Time, control compressor shutdown, and close close the border air valve, to ensureRefrigerant can not be back in indoor set. Wherein, the first Preset Time can be according to the volume of air-conditioner, refrigerant type and coldMatchmaker's charging amount obtains, to ensure refrigerant in indoor set all or major part is drawn in off-premises station, and specifically can be by realTest examination obtains.
The control method of the air-conditioner of the embodiment of the present invention and refrigerant content thereof, is receiving after halt instruction, controls compressorAccording to predeterminated frequency operation, and close choke valve, then, after time delay the first Preset Time, control compressor shutdown, and closeClose air valve, so that refrigerant is locked in off-premises station as much as possible, thereby reduce the refrigerant content in indoor set, ensure indoorUser's safety.
According to one embodiment of present invention, in above-mentioned air-conditioner, the control method of refrigerant content also comprises: Real-time Obtaining chamberThe refrigerant concentration of interior heat exchanger, and judge whether refrigerant concentration is less than preset concentration; If refrigerant concentration is less than preset concentration,Control compressor shutdown, and air valve is closed the border in pass.
Particularly, in an embodiment of the present invention, also can judge compressor by the refrigerant concentration in indoor heat exchangerWhether shut down,, in the time that the refrigerant concentration in indoor heat exchanger is less than preset concentration, control compressor shutdown, and gas is closed the border in passValve. That is to say, in the time that the refrigerant concentration in indoor heat exchanger reaches within the scope of safe concentration, control compressor shutdown, andAir valve is closed the border in pass, to ensure indoor user's safety. What wherein, preset concentration can be according to the type of refrigerant and air-conditionerVolume obtains.
According to one embodiment of present invention, in above-mentioned air-conditioner, the control method of refrigerant content also comprises: Real-time Obtaining chamberThe outlet temperature of external heat exchanger, and judge whether the temperature variation of outlet temperature is less than default variable quantity; If outlet temperatureVariable quantity be less than default variable quantity and continue the second Preset Time, control compressor shutdown, and close and close the border air valve. Wherein,The second Preset Time can obtain according to the volume of air-conditioner.
Particularly, in the time that the outlet temperature of outdoor heat exchanger is substantially unchanged, outdoor heat exchanger has not had heat transfer effectTime, show that refrigerant is locked in the pipeline and outdoor heat exchanger of choke valve front end substantially, then time delay the second Preset TimeAfter, control compressor shutdown, and close close the border air valve, to ensure indoor user's safety.
It should be noted that in an embodiment of the present invention, can also judge by other means whether compressor shuts down,Concrete judgment mode just repeats no more here.
In sum, the control method of the air-conditioner of the embodiment of the present invention and refrigerant content thereof, is receiving after halt instruction,Control compressor and move according to predeterminated frequency, and close choke valve, after time delay the first Preset Time, or work as indoor heat exchangerIn refrigerant concentration be less than preset concentration, or the outlet temperature of outdoor heat exchanger is less than default variable quantity and continues second defaultTime, control compressor shutdown, and close close the border air valve, so that refrigerant is locked in off-premises station as much as possible, thus reduce chamberRefrigerant content in interior machine, guarantee indoor user's safety.
As shown in Figure 2, in an embodiment of the present invention, air-conditioner comprises off-premises station 10 and indoor set 20, and off-premises station 10 wrapsDraw together compressor 11, outdoor heat exchanger 12 and choke valve 13, indoor set 20 comprises indoor heat exchanger 21 and closes air valve 22, chamberOne end of external heat exchanger 12 is connected with one end of indoor heat exchanger 21 by choke valve 13, the other end of indoor heat exchanger 21Be connected with the other end of outdoor heat exchanger 12 with compressor 11 by closing air valve 22.
And as shown in Figure 3 and Figure 4, air-conditioner also comprises control module 30, control module 30 is for receiving shutdownAfter instruction, control compressor 11 according to predeterminated frequency operation, and close choke valve 13, and after time delay the first Preset Time,Control compressor 11 and shut down, and air valve 22 is closed the border in pass. Wherein, the first Preset Time can be according to the volume of air-conditioner, coldMatchmaker's type and coolant injection amount are obtained.
Particularly, control module 30 is receiving after halt instruction, controls compressor 11 according to predeterminated frequency operation, and closesClose choke valve 13, so that refrigerant constantly flows to off-premises station 10 from indoor set 20, because choke valve 13 is in closed condition,Therefore refrigerant will be locked in the pipeline and outdoor heat exchanger 12 of choke valve 13 front ends. Wherein, predeterminated frequency can beReceive the running frequency of halt instruction previous moment compressor 11, it is constant that compressor 11 can keep current running frequency,Also can be predefined other frequencies, specifically can set according to the type of air-conditioner and refrigerant.
When compressor 11 moves with predeterminated frequency after the first Preset Time, control module 30 is controlled compressor 11 and is shut down, and closesClose the border air valve 22, to ensure that refrigerant can not be back in indoor set 20. Wherein, the first Preset Time can be according to air-conditionerVolume, refrigerant type and coolant injection amount obtain, to ensure refrigerant in indoor set 20 all or major part is drawn intoIn off-premises station 10, specifically can test by experiment acquisition.
According to one embodiment of present invention, as shown in Figure 3, above-mentioned air-conditioner also comprises: the first acquisition module 40, theOne acquisition module 40 is for the refrigerant concentration of Real-time Obtaining indoor heat exchanger 21, and wherein, control module 30 judges that refrigerant is denseWhether degree is less than preset concentration, and in the time that refrigerant concentration is less than preset concentration, control compressor 11 and shut down, and air valve is closed the border in pass22。
Particularly, in an embodiment of the present invention, also can judge compression by the refrigerant concentration in indoor heat exchanger 21Whether machine 11 shuts down, and, in the time that the refrigerant concentration in indoor heat exchanger 21 is less than preset concentration, control module 30 is controlled compressionMachine 11 is shut down, and air valve 22 is closed the border in pass. That is to say, when the refrigerant concentration in indoor heat exchanger 21 reaches safe concentration modelEnclose when interior, control module 30 is controlled compressor 11 and is shut down, and closes and close the border air valve 22, to ensure indoor user's safety.Wherein, preset concentration can obtain according to the volume of the type of refrigerant and air-conditioner.
According to one embodiment of present invention, as shown in Figure 4, above-mentioned air-conditioner also comprises the second acquisition module 50, the secondAcquisition module 50 is for the outlet temperature of Real-time Obtaining outdoor heat exchanger 12, and wherein, control module 30 judges outlet temperatureWhether temperature variation is less than default variable quantity, and is less than default variable quantity and continues second default at the variable quantity of outlet temperatureWhen time, control compressor 11 and shut down, and air valve 22 is closed the border in pass. What wherein, the second Preset Time can be according to air-conditionerVolume obtains.
Particularly, in the time that the outlet temperature of outdoor heat exchanger 12 is substantially unchanged, outdoor heat exchanger 12 has not changedWhen thermal effect, show that refrigerant is locked in the pipeline and outdoor heat exchanger 12 of choke valve 13 front ends substantially, then time delayAfter the second Preset Time, control module 30 is controlled compressor 11 and is shut down, and closes and close the border air valve 22, thereby ensures that indoor usesThe safety at family.
It should be noted that in an embodiment of the present invention, can also judge by other means whether compressor 11 shuts down,Concrete judgment mode just repeats no more here. In addition, the installation site of closing air valve 22 can be set according to actual conditions,For example, can be arranged on the arbitrary correct position between the outlet of indoor heat exchanger 21 and the air inlet of compressor 11, as long asAfter preventing that air-conditioner from shutting down, refrigerant can not be back in indoor set 20.
The air-conditioner of the embodiment of the present invention, control module is receiving after halt instruction, controls compressor and transports according to predeterminated frequencyOK, and close choke valve, and after time delay the first Preset Time, or the refrigerant concentration of working as in indoor heat exchanger is less than defaultConcentration, or the outlet temperature of outdoor heat exchanger is when being less than default variable quantity and continuing the second Preset Time, controls compressor and stopsMachine, and close and close the border air valve, so that refrigerant is locked in off-premises station as much as possible, thereby reduce the refrigerant content in indoor set,Ensure indoor user's safety.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width "," thickness ", " on ", D score, 'fornt', 'back', " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior "," outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", " circumferentially " etc. instruction orientation or position relationship be based onOrientation shown in the drawings or position relationship, be only the present invention for convenience of description and simplified characterization, instead of instruction or hint instituteThe device referring to or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as thisBright restriction.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importanceOr the implicit quantity that indicates indicated technical characterictic. Thus, the feature that is limited with " first ", " second " can be expressedOr impliedly comprise at least one this feature. In description of the invention, the implication of " multiple " is at least two, for example twoIndividual, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixing "Should be interpreted broadly Deng term, for example, can be to be fixedly connected with, and can be also to removably connect, or integral; Can beMechanical connection can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be twoThe interaction relationship of the connection of individual element internal or two elements, unless separately there is clear and definite restriction. Common for this areaTechnical staff, can understand above-mentioned term concrete meaning in the present invention as the case may be.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic " on " or D score canBeing that the first and second features directly contact, or the first and second features are by intermediary mediate contact. And, theOne feature Second Characteristic " on ", " top " and " above " but First Characteristic directly over Second Characteristic orOblique upper, or only represent that First Characteristic level height is higher than Second Characteristic. First Characteristic Second Characteristic " under "," below " and " below " can be First Characteristic under Second Characteristic or tiltedly, or only represents the first spyLevy level height and be less than Second Characteristic.
In the description of this description, reference term " embodiment ", " some embodiment ", " example ", " specifically showExample " or the description of " some examples " etc. the specific features that means to describe in conjunction with this embodiment or example, structure, material orFeature is contained at least one embodiment of the present invention or example. In this manual, the schematic statement to above-mentioned termNot must for be identical embodiment or example. And specific features, structure, material or the feature of description canIn one or more embodiment in office or example with suitable mode combination. In addition, not conflicting in the situation that, abilityThe technical staff in territory can enter the feature of the different embodiment that describe in this description or example and different embodiment or exampleRow combination and combination.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary,Can not be interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-described embodimentChange, amendment, replacement and modification.
Claims (10)
1. a control method for refrigerant content in air-conditioner, is characterized in that, described air-conditioner comprises off-premises station and indoor set,Described off-premises station comprises compressor, outdoor heat exchanger and choke valve, and described indoor set comprises indoor heat exchanger and closes air valve, instituteOne end of stating outdoor heat exchanger is connected with one end of described indoor heat exchanger by described choke valve, described indoor heat exchanger separatelyOne end is connected with the other end of described outdoor heat exchanger with described compressor by described pass air valve, and described method comprises following stepRapid:
Receiving after halt instruction, controlling described compressor and move according to predeterminated frequency, and closing described choke valve; And
After time delay the first Preset Time, control described compressor shutdown, and close described pass air valve.
2. the control method of refrigerant content in air-conditioner according to claim 1, is characterized in that, described first is defaultTime obtains according to the volume of described air-conditioner, refrigerant type and coolant injection amount.
3. the control method of refrigerant content in air-conditioner according to claim 1 and 2, is characterized in that, also comprises:
Refrigerant concentration described in Real-time Obtaining in indoor heat exchanger, and judge whether described refrigerant concentration is less than preset concentration; WithAnd
If described refrigerant concentration is less than described preset concentration, controls described compressor shutdown, and close described pass air valve.
4. the control method of refrigerant content in air-conditioner according to claim 1 and 2, is characterized in that, also comprises:
The outlet temperature of outdoor heat exchanger described in Real-time Obtaining, and judge whether the temperature variation of described outlet temperature is less than in advanceIf variable quantity;
If the variable quantity of described outlet temperature is less than described default variable quantity and continues the second Preset Time, control described pressureContracting machine is shut down, and closes described pass air valve.
5. the control method of refrigerant content in air-conditioner according to claim 4, is characterized in that, described second is defaultTime obtains according to the volume of described air-conditioner.
6. an air-conditioner, is characterized in that, comprises off-premises station and indoor set, and described off-premises station comprises compressor, outdoor changingHot device and choke valve, described indoor set comprises indoor heat exchanger and pass air valve, one end of described outdoor heat exchanger is by described jointStream valve is connected with one end of described indoor heat exchanger, and the other end of described indoor heat exchanger is by described pass air valve and described compressionMachine is connected with the other end of described outdoor heat exchanger, and described air-conditioner also comprises:
Control module, described control module, for receiving after halt instruction, is controlled described compressor and is transported according to predeterminated frequencyOK, and close described choke valve, and after time delay the first Preset Time, control described compressor shutdown, and close described passAir valve.
7. air-conditioner according to claim 6, is characterized in that, described the first Preset Time is according to described air-conditionerVolume, refrigerant type and coolant injection amount are obtained.
8. according to the air-conditioner described in claim 6 or 7, it is characterized in that, also comprise:
The first acquisition module, for the refrigerant concentration of indoor heat exchanger described in Real-time Obtaining, wherein, described control module is sentencedWhether disconnected described refrigerant concentration is less than preset concentration, and in the time that described refrigerant concentration is less than described preset concentration, controls described pressureContracting machine is shut down, and closes described pass air valve.
9. according to the air-conditioner described in claim 6 or 7, it is characterized in that, also comprise:
The second acquisition module, for the outlet temperature of outdoor heat exchanger described in Real-time Obtaining, wherein, described control module judgementWhether the temperature variation of described outlet temperature is less than default variable quantity, and is less than described pre-at the variable quantity of described outlet temperatureIf when variable quantity and lasting the second Preset Time, control described compressor shutdown, and close described pass air valve.
10. air-conditioner according to claim 9, is characterized in that, described the second Preset Time is according to described air-conditionerVolume obtain.
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| CN201610089598.5A CN105674651B (en) | 2016-02-17 | 2016-02-17 | The adjusting method of air conditioner and its refrigerant content |
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| CN201610089598.5A CN105674651B (en) | 2016-02-17 | 2016-02-17 | The adjusting method of air conditioner and its refrigerant content |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440215A (en) * | 2016-10-08 | 2017-02-22 | 芜湖美智空调设备有限公司 | Air conditioner and control method thereof |
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| WO2018192385A1 (en) * | 2017-04-17 | 2018-10-25 | 青岛海尔空调器有限总公司 | Air conditioner and control method therefor |
| CN109484131A (en) * | 2018-12-12 | 2019-03-19 | 江苏阿尔特空调实业有限责任公司 | The control method of the double dynamical compressor air-conditioning system of plug-in hybrid-power automobile |
| CN110173813A (en) * | 2019-05-30 | 2019-08-27 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
| CN110553415A (en) * | 2019-09-11 | 2019-12-10 | 广东美的制冷设备有限公司 | Air conditioner, control method of air conditioner and storage medium |
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| CN106642519A (en) * | 2016-09-20 | 2017-05-10 | 青岛海尔空调器有限总公司 | Constant-frequency air conditioner stopping control method and device |
| CN106440215A (en) * | 2016-10-08 | 2017-02-22 | 芜湖美智空调设备有限公司 | Air conditioner and control method thereof |
| WO2018192385A1 (en) * | 2017-04-17 | 2018-10-25 | 青岛海尔空调器有限总公司 | Air conditioner and control method therefor |
| CN108007027A (en) * | 2017-11-07 | 2018-05-08 | 珠海格力电器股份有限公司 | Shutdown control method and device for refrigeration system |
| CN110887168B (en) * | 2018-09-10 | 2021-05-18 | 奥克斯空调股份有限公司 | Air conditioner refrigerant shortage detection method and air conditioner |
| CN110887168A (en) * | 2018-09-10 | 2020-03-17 | 奥克斯空调股份有限公司 | Air conditioner refrigerant shortage detection method and air conditioner |
| CN109484131A (en) * | 2018-12-12 | 2019-03-19 | 江苏阿尔特空调实业有限责任公司 | The control method of the double dynamical compressor air-conditioning system of plug-in hybrid-power automobile |
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| CN110553415A (en) * | 2019-09-11 | 2019-12-10 | 广东美的制冷设备有限公司 | Air conditioner, control method of air conditioner and storage medium |
| CN110553415B (en) * | 2019-09-11 | 2022-04-26 | 广东美的制冷设备有限公司 | Air conditioner, control method of air conditioner and storage medium |
| CN114608187A (en) * | 2022-03-01 | 2022-06-10 | 博锐尚格科技股份有限公司 | Method, device and equipment for determining cold machine adjusting mode and storage medium |
| CN114608187B (en) * | 2022-03-01 | 2023-09-26 | 博锐尚格科技股份有限公司 | Method, device, equipment and storage medium for determining cooling machine adjusting mode |
| CN114963299A (en) * | 2022-06-30 | 2022-08-30 | 海信空调有限公司 | Air conditioner |
| CN114963299B (en) * | 2022-06-30 | 2023-11-03 | 海信空调有限公司 | Air conditioner |
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