CN107062560A - The coolant leakage protection device and method of air conditioner and air conditioner - Google Patents
The coolant leakage protection device and method of air conditioner and air conditioner Download PDFInfo
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- CN107062560A CN107062560A CN201710385052.9A CN201710385052A CN107062560A CN 107062560 A CN107062560 A CN 107062560A CN 201710385052 A CN201710385052 A CN 201710385052A CN 107062560 A CN107062560 A CN 107062560A
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- Prior art keywords
- air conditioner
- magnetic valve
- coolant leakage
- control
- refrigerant
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Classifications
-
- 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
- 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
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/84—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 using valves
Abstract
The invention discloses coolant leakage protection device, method and the air conditioner of a kind of air conditioner, the coolant leakage protection device of air conditioner includes：It is arranged at the first magnetic valve of the outdoor heat exchanger outlet of outdoor unit in air conditioner；It is arranged at the second magnetic valve of the compressor air suction mouthful of outdoor unit in air conditioner；Control unit, control unit is connected with the first magnetic valve and the second magnetic valve respectively, and control unit is used for the control air conditioner when coolant leakage occurs for air conditioner and run in a chiller mode, and controls the first magnetic valve and the second magnetic valve successively to close.So as to which the refrigerant that promptly will leak out is transferred to outside, it is prevented effectively from coolant leakage particularly combustible refrigerant and leaks to the potential safety hazard that indoor user is brought, the personal safety of user of the protection in indoor environment improves the security that air conditioner is used.
Description
Technical field
The present invention relates to air conditioner technical field, the coolant leakage protection device of more particularly to a kind of air conditioner, Yi Zhongkong
Adjust the coolant leakage guard method of device and a kind of air conditioner.
Background technology
The coolant leakage of air conditioner can produce material impact to systematic function and reliability, in particular with combustible refrigerant
R32, R290 gradually popularization, secondary refrigerant leakage are more important.Coolant leakage detection in correlation technique will be detected mostly
Coolant leakage state is notified user in the form of failure code and controls air conditioner to shut down.But, the problem of it is present is, because cold
Matchmaker's leakage particularly combustible refrigerant leakage is still present, therefore there is likely to be potential safety hazard.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.Therefore, the present invention
One purpose is the coolant leakage protection device for proposing a kind of air conditioner, can be prevented effectively from coolant leakage be particularly it is flammable cold
The potential safety hazard that matchmaker's leakage is brought.
It is another object of the present invention to propose a kind of air conditioner.A further object of the present invention is to propose a kind of sky
Adjust the coolant leakage guard method of device.
To reach above-mentioned purpose, a kind of coolant leakage protection device bag for air conditioner that one aspect of the present invention embodiment is proposed
Include：It is arranged at the first magnetic valve of the outdoor heat exchanger outlet of outdoor unit in the air conditioner；It is arranged at room in the air conditioner
Second magnetic valve of the compressor air suction mouthful of outer machine；Control unit, described control unit respectively with first magnetic valve and institute
State the second magnetic valve to be connected, described control unit is used to control the air conditioner to make when coolant leakage occurs for the air conditioner
Cold mode operation, and control first magnetic valve and second magnetic valve successively to close.
The coolant leakage protection device of the air conditioner proposed according to embodiments of the present invention, passes through the outdoor heat exchange in outdoor unit
The outlet of device sets the first magnetic valve, and sets the second magnetic valve in the air entry of compressor, and control unit occurs in air conditioner
Control air conditioner to run in a chiller mode during coolant leakage, and control the first magnetic valve and the second magnetic valve successively to close.Thus,
The magnetic valve exported in coolant leakage by closing outdoor heat exchanger with the refrigerant of prevent leakage continues to flow into indoor set, then
The refrigerant recovering that will leak out by forced refrigeration encloses room into outdoor unit, then by closing the second magnetic valve by the refrigerant of recovery
Outer machine, so that the refrigerant that promptly will leak out is transferred to outside, is prevented effectively from coolant leakage particularly combustible refrigerant and is leaked to
The potential safety hazard that indoor user is brought, the personal safety of user of the protection in indoor environment, improves the peace that air conditioner is used
Quan Xing.
According to one embodiment of present invention, described control unit, can be further used for occurring refrigerant in the air conditioner
Control first magnetic valve first to close during leakage, and control the air conditioner to run preset time, Yi Ji in a chiller mode
Second closed electromagnetic valve is controlled after the preset time again.
According to one embodiment of present invention, described control unit, it may also be used for controlling second closed electromagnetic valve
Afterwards, control the compressor out of service, and control the air conditioner to send refrigerant fault warning.
According to one embodiment of present invention, described control unit can be used for when coolant leakage does not occur for the air conditioner
First magnetic valve and second magnetic valve is controlled to be both turned on.
To reach above-mentioned purpose, another aspect of the present invention embodiment proposes a kind of air conditioner, including described air-conditioning
The coolant leakage protection device of device.
The air conditioner proposed according to embodiments of the present invention, the refrigerant that can promptly will leak out is transferred to outside, effectively
Coolant leakage particularly combustible refrigerant is avoided to leak to the potential safety hazard that indoor user is brought, user of the protection in indoor environment
Personal safety, improve the security that air conditioner is used.
To reach above-mentioned purpose, a kind of coolant leakage protection side for air conditioner that another aspect of the invention embodiment is proposed
Method, the air conditioner includes being arranged at the first magnetic valve and the setting of the outdoor heat exchanger outlet of outdoor unit in the air conditioner
The second magnetic valve of the compressor air suction mouthful of outdoor unit, the described method comprises the following steps in the air conditioner：Detection is described
Whether air conditioner occurs coolant leakage；If coolant leakage occurs for the air conditioner, the air conditioner is controlled in a chiller mode
Operation, and control first magnetic valve and second magnetic valve successively to close.
The coolant leakage guard method of the air conditioner proposed according to embodiments of the present invention, passes through the outdoor heat exchange in outdoor unit
The outlet of device sets the first magnetic valve, and sets the second magnetic valve in the air entry of compressor, occurs coolant leakage in air conditioner
When control air conditioner run in a chiller mode, and control the first magnetic valve and the second magnetic valve successively to close.Thus, let out in refrigerant
The magnetic valve exported during leakage by closing outdoor heat exchanger with the refrigerant of prevent leakage continues to flow into indoor set, then passes through and forces
The refrigerant recovering that will leak out freeze to outdoor unit, then by closing the second magnetic valve by the refrigerant inclosure outdoor unit of recovery, so that
The refrigerant that promptly will leak out is transferred to outside, is prevented effectively from coolant leakage particularly combustible refrigerant and leaks to indoor user band
The potential safety hazard come, the personal safety of user of the protection in indoor environment, improves the security that air conditioner is used.
According to one embodiment of present invention, the control air conditioner runs and controls described first in a chiller mode
Magnetic valve and second magnetic valve are successively closed, it may include：Control first magnetic valve first to close, and control the air-conditioning
Device runs preset time in a chiller mode；After the preset time, then control second closed electromagnetic valve.
According to one embodiment of present invention, the coolant leakage guard method of the air conditioner also includes：It is described in control
After second closed electromagnetic valve, control the compressor out of service, and control the air conditioner to send refrigerant fault warning.
According to one embodiment of present invention, the coolant leakage guard method of the air conditioner also includes：In the air-conditioning
When coolant leakage does not occur for device, first magnetic valve and second magnetic valve is controlled to be both turned on.
Brief description of the drawings
Fig. 1 is the block diagram of the coolant leakage protection device of air conditioner according to embodiments of the present invention；
Fig. 2 is the structural representation of air conditioner according to an embodiment of the invention；
Fig. 3 is the flow chart of the coolant leakage guard method of air conditioner according to embodiments of the present invention；And
Fig. 4 is the flow chart of the coolant leakage guard method of air conditioner according to an embodiment of the invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Illustrate the refrigerant of coolant leakage protection device, air conditioner and the air conditioner of the air conditioner of the present invention below in conjunction with the accompanying drawings
Leakage protecting method.
Fig. 1 is the block diagram of the coolant leakage protection device of air conditioner according to embodiments of the present invention.Such as Fig. 1 and 2
Shown, the coolant leakage protection device of the air conditioner of the embodiment of the present invention includes：First magnetic valve 5, the second magnetic valve 3 and control
Unit 10.
As illustrated in fig. 1 and 2, air conditioner includes indoor set 200 and outdoor unit 100, and indoor set 200 includes indoor heat exchanger 7,
Outdoor unit 100 includes outdoor heat exchanger 4, throttle part 6, four-way valve 2 and compressor 1, wherein, the first end C of four-way valve 2 and room
The entrance of external heat exchanger 4 is connected, and the outlet of outdoor heat exchanger 4 passes through throttle part 6 and the indoor heat exchanger 7 of indoor set 200
Entrance is connected, and the outlet of indoor heat exchanger 7 is connected with the second end E of four-way valve 2, the 3rd end S of four-way valve 2 by reservoir and
The entrance of compressor 1 is connected, and the 4th end D of four-way valve 2 is connected with the outlet of compressor 1.
Wherein, as illustrated in fig. 1 and 2, the first magnetic valve 5 is arranged at going out for the outdoor heat exchanger 4 of outdoor unit 100 in air conditioner
Mouthful, more specifically, the first magnetic valve 5 is arranged between outdoor heat exchanger 4 and throttle part 6, the first magnetic valve 5 is used for control room
External heat exchanger 4 exports the break-make of the pipeline between indoor set 200 to control whether refrigerant flows into indoor set 200.
Second magnetic valve 3 is arranged at the air entry of the compressor 1 of outdoor unit 100 in air conditioner, more specifically, the second electromagnetism
Valve 3 is arranged between the reservoir of compressor 1 and four-way valve 2, and the second magnetic valve 3 is used for the suction for controlling four-way valve 2 and compressor 1
The break-make of pipeline between gas port is to control whether refrigerant flows into outdoor unit 100.
Control unit 10 is connected with the first magnetic valve 5 and the second magnetic valve 3 respectively, and control unit 10 may be provided at indoor set
200, control unit 10 is used for the control air conditioner when coolant leakage occurs for air conditioner and run in a chiller mode, and controls the first electricity
The magnetic valve 3 of magnet valve 5 and second is successively closed.That is, control unit 10 respectively with the first magnetic valve 5 and the second magnetic valve 3
Be connected, with controlled by controlling the on or off of the first magnetic valve 5 and the second magnetic valve 3 the unimpeded of refrigerant flow pipe or
Closing.
It should be noted that control unit 10 can prestore coolant leakage detection program, control unit 10 can be by cold
Whether matchmaker's leak detection Programmable detection air conditioner occurs coolant leakage.
Specifically, in air conditioner running, control unit 10 performs coolant leakage detection program to detect air-conditioning
Whether device occurs coolant leakage, if coolant leakage occurs for air conditioner, control unit 10 then controls air conditioner to transport in a chiller mode
OK, and control the first magnetic valve 5 and the second magnetic valve 3 successively to close, i.e., the first magnetic valve 5 is first closed when refrigeration mode is run
Then the second magnetic valve 3 is turned off, refrigerant is enclosed into outdoor unit.
According to one embodiment of present invention, control unit 10 is further used for controlling when coolant leakage occurs for air conditioner
First magnetic valve 5 is first closed, and controls air conditioner to run preset time in a chiller mode, and controls after preset time again
Two magnetic valves 3 are closed.
That is, control unit 10 first controls the first magnetic valve 5 to close when coolant leakage occurs for air conditioner, to prevent
The refrigerant of outdoor unit 100 continues to flow into indoor set 200, and controls air conditioner to run preset time, such as 5 points in a chiller mode
Clock, and control the second magnetic valve 3 to close after operation preset time in a chiller mode, by the remaining refrigerant in indoor set 200
Suck and enclose outdoor unit 100, in other words, pressure refrigerant recovering is carried out equivalent to control air conditioner, by refrigerant recovering to room
In outer machine 100, so as to avoid coolant leakage particularly combustible refrigerant from leaking to the potential safety hazard that indoor user is brought, it is ensured that be in
The personal safety of the user of indoor environment.
According to one embodiment of present invention, control unit 10 is used to control first when coolant leakage does not occur for air conditioner
The magnetic valve 3 of magnetic valve 5 and second is both turned on.
That is, when air conditioner is started shooting and normally run according to preassigned pattern, control unit 10 controls the first magnetic valve 5
It is both turned on the second magnetic valve 3, so that refrigerant is by carrying out temperature adjustment.
Specifically, air conditioner is started shooting and run according to preassigned pattern, and control unit 10 controls the first magnetic valve 5 and second
Conducted on magnetic valve 3, and start to perform coolant leakage detection program to detect whether air conditioner occurs coolant leakage, if not
Detect air conditioner and occur coolant leakage, control unit 10 then controls air conditioner normally to run；If detecting air conditioner
Coolant leakage, control unit 10 then first controls the first magnetic valve 5 to close, to prevent the refrigerant of outdoor unit 100 from continuing to flow into interior
Machine 200.The operational mode of air conditioner is now detected, if air conditioner is in heating mode, control air conditioner is shut down and controlled
Four-way valve 2 commutates using unsteady state operation as refrigeration mode, and air conditioner is run in a chiller mode controls the second electromagnetism again after preset time
Valve 3 is closed.If air conditioner is in refrigeration mode, without forced refrigeration, preset time is run in a chiller mode in air conditioner
Control the second magnetic valve 3 to close again afterwards, so that the refrigerant that promptly will leak out is transferred to outside, be prevented effectively from coolant leakage special
It is not that combustible refrigerant leaks to the potential safety hazard that indoor user is brought, the personal safety of user of the protection in indoor environment is carried
The security that high air conditioner is used.
Further, according to one embodiment of present invention, control unit 10 is additionally operable to controlling the second magnetic valve 3 to close
Afterwards, control compressor 1 is out of service, and controls air conditioner to send refrigerant fault warning.
Alarmed it should be noted that control unit 10 can send buzzing by the buzzer of indoor set 200 to residing room
Or by the display device of indoor set 200 such as indicator lamp, display show fault warning.Also, control unit 10 may be used also
Coolant leakage fault warning is sent to remote server by wireless communication module, refrigerant let out so as to contact personnel after sale as early as possible
Leakage failure is repaired.
Specifically, when coolant leakage does not occur for air conditioner, control unit controls the first magnetic valve 5 and the second magnetic valve
3 are both turned on, so that refrigerant is by carrying out temperature adjustment, when coolant leakage occurs for air conditioner, control unit 10 first controls first
Magnetic valve 5 is closed, and to stop carrying out temperature adjustment to indoor set transmission refrigerant, prevents the further leakage of refrigerant, and control sky
Adjust device to run preset time in a chiller mode, the second magnetic valve 3 is controlled again after air conditioner runs preset time in a chiller mode
Close, control compressor 1 is out of service after controlling the second magnetic valve 3 to close, and control air conditioner to send the police of refrigerant failure
Report, it is to avoid refrigerant continues to leak.
In summary, the coolant leakage protection device of the air conditioner proposed according to embodiments of the present invention, by outdoor unit
The outlet of outdoor heat exchanger the first magnetic valve is set, and the second magnetic valve is set in the air entry of compressor, control unit exists
Control air conditioner is run in a chiller mode when coolant leakage occurs for air conditioner, and controls the first magnetic valve and the second magnetic valve successively
Close.Thus, the magnetic valve exported in coolant leakage by closing outdoor heat exchanger is continued to flow into the refrigerant of prevent leakage
Indoor set, the refrigerant recovering that then will leak out by forced refrigeration will be reclaimed into outdoor unit, then by closing the second magnetic valve
Refrigerant enclose outdoor unit so that the refrigerant that promptly will leak out is transferred to outside, being prevented effectively from that coolant leakage is particularly can
The potential safety hazard that combustion secondary refrigerant leakage is brought to indoor user, the personal safety of user of the protection in indoor environment, improves sky
The security for adjusting device to use.
In addition, the embodiment of the present invention also proposed a kind of air conditioner, its refrigerant for including the air conditioner of above-described embodiment is let out
Leak protection device.
The air conditioner proposed according to embodiments of the present invention, the refrigerant that can promptly will leak out is transferred to outside, effectively
Coolant leakage particularly combustible refrigerant is avoided to be leaked to the potential safety hazard that indoor user is brought, user of the protection in indoor environment
Personal safety, improve the security that air conditioner is used.
Fig. 3 is the flow chart of the coolant leakage guard method of air conditioner according to embodiments of the present invention.Wherein, air conditioner bag
Include indoor set and outdoor unit, indoor set includes indoor heat exchanger, outdoor unit include outdoor heat exchanger, throttle part, four-way valve and
Compressor, the first end of four-way valve is connected with the entrance of outdoor heat exchanger, and the outlet of outdoor heat exchanger passes through throttle part and room
The entrance of the indoor heat exchanger of interior machine is connected, and the outlet of indoor heat exchanger is connected with the second end of four-way valve, and the 3rd of four-way valve the
End is connected by reservoir with the entrance of compressor, and the 4th end of four-way valve is connected with the outlet of compressor.
As shown in figure 3, the coolant leakage guard method of the air conditioner of the embodiment of the present invention, comprises the following steps：
S1：Whether detection air conditioner occurs coolant leakage.
It should be noted that can detect whether Programmable detection air conditioner occurs refrigerant and let out by the coolant leakage prestored
Leakage.
S2：If coolant leakage occurs for air conditioner, control air conditioner is run in a chiller mode, and controls the first magnetic valve
Successively closed with the second magnetic valve.
Specifically, during operation of air conditioner, whether detection air conditioner occurs coolant leakage, if air conditioner generation is cold
Matchmaker leaks, then controls air conditioner to run in a chiller mode, and controls the first magnetic valve and the second magnetic valve successively to close, i.e., in system
The first magnetic valve is first closed during cold mode operation and then the second magnetic valve is turned off, refrigerant is enclosed into outdoor unit.
According to one embodiment of present invention, control air conditioner runs and controls the first magnetic valve and second in a chiller mode
Magnetic valve, which is successively closed, to be included：Control the first magnetic valve first to close, and control air conditioner to run preset time in a chiller mode；
After preset time, then control the second closed electromagnetic valve.
That is, the first closed electromagnetic valve is first controlled when coolant leakage occurs for air conditioner, to prevent the cold of outdoor unit
Matchmaker continues to flow into indoor set, and controls air conditioner to run preset time in a chiller mode, such as 5 minutes, is transporting in a chiller mode
The second closed electromagnetic valve is controlled after row preset time, the remaining refrigerant in indoor set is sucked and outdoor unit is enclosed, in other words,
Pressure refrigerant recovering is carried out equivalent to control air conditioner, by refrigerant recovering into outdoor unit, so as to avoid coolant leakage special
It is that combustible refrigerant leaks to the potential safety hazard that indoor user is brought, it is ensured that the personal safety of the user in indoor environment.According to
One embodiment of the present of invention, when the coolant leakage guard method of air conditioner is additionally included in air conditioner and does not occur coolant leakage, control
Make the first magnetic valve and the second magnetic valve is both turned on.That is, when air conditioner is started shooting and normally run according to preassigned pattern, control
Make the first magnetic valve and the second magnetic valve is both turned on, so that refrigerant is by carrying out temperature adjustment.
Specifically, air conditioner is started shooting and run according to preassigned pattern, electricity on the first magnetic valve of control and the second magnetic valve
Conducting, and start to perform coolant leakage detection program to detect whether air conditioner occurs coolant leakage, if being not detected by air-conditioning
Coolant leakage occurs for device, then controls air conditioner normally to run；If detecting air conditioner occurs coolant leakage, first is first controlled
Closed electromagnetic valve, to prevent the refrigerant of outdoor unit from continuing to flow into indoor set.The operational mode of air conditioner is now detected, if air-conditioning
Device be in heating mode, then control air conditioner shut down and control four-way valve commutate using unsteady state operation as refrigeration mode, air conditioner with
The second closed electromagnetic valve is controlled again after refrigeration mode operation preset time.If air conditioner is in refrigeration mode, without forcing
Refrigeration, the second closed electromagnetic valve is controlled after air conditioner runs preset time in a chiller mode again, so that promptly will leak out
Refrigerant is transferred to outside, is prevented effectively from coolant leakage particularly combustible refrigerant and leaks to the potential safety hazard that indoor user is brought,
The personal safety of user of the protection in indoor environment, improves the security that air conditioner is used.
According to one embodiment of present invention, the coolant leakage guard method of air conditioner also includes：Controlling the second electromagnetism
After valve is closed, control compressor is out of service, and controls air conditioner to send refrigerant fault warning.
Alarmed or by indoor set it should be noted that buzzing can be sent to residing room by the buzzer of indoor set
Display device is such as indicator lamp, display show fault warning.Also, can also be by wireless communication module, to remote service
Device sends coolant leakage fault warning, and coolant leakage failure is repaired so as to contact personnel after sale as early as possible.
Specifically, when coolant leakage does not occur for air conditioner, the first magnetic valve of control and the second magnetic valve are both turned on, with
Make refrigerant by carrying out temperature adjustment, when coolant leakage occurs for air conditioner, the first closed electromagnetic valve is first controlled, to stop to room
Interior machine transmission refrigerant carries out temperature adjustment, prevents the further leakage of refrigerant, and it is default to control air conditioner to run in a chiller mode
Time, the second closed electromagnetic valve is controlled again after air conditioner runs preset time in a chiller mode, closed controlling the second magnetic valve
Control compressor is out of service after closing, and controls air conditioner to send refrigerant fault warning, to avoid refrigerant from continuing to leak.
According to one embodiment of present invention, as shown in figure 4, the coolant leakage guard method of air conditioner includes following step
Suddenly：
S101：Control air conditioner starts according to setting mode operation.
S102：Judge whether occur coolant leakage.
If it is, performing step S103；If it is not, then return to step S102.
S103：The first magnetic valve is closed, whether detection air conditioner is in refrigeration mode.
If it is, performing step S105；If it is not, then performing step S104.
S104：Control air conditioner pattern switchs to refrigeration mode.
S105：Refrigerating operaton preset time.For example, preset time can be 5 minutes.
S106：Control the second closed electromagnetic valve.
S107：Control compressor out of service, and control air conditioner to send refrigerant fault warning.
Specifically, when coolant leakage does not occur for air conditioner, conducted on the first magnetic valve of control and the second magnetic valve,
So that refrigerant is let out by carrying out temperature adjustment, and starting execution coolant leakage detection program with detecting whether air conditioner occurs refrigerant
Leakage, if coolant leakage occurs for air conditioner, controls the first closed electromagnetic valve, to prevent the refrigerant of outdoor unit from continuing to flow into interior
Machine.The operational mode of air conditioner is now detected, if air conditioner is in heating mode, control air conditioner is shut down and controls four-way
Valve commutates using unsteady state operation as refrigeration mode, and air conditioner is run in a chiller mode controls the second magnetic valve to close again after preset time
Close.If air conditioner is in refrigeration mode, without forced refrigeration, controlled again after air conditioner runs preset time in a chiller mode
Make the second closed electromagnetic valve.Control compressor is out of service after the second closed electromagnetic valve is controlled, and controls air conditioner to send
Refrigerant fault warning, it is to avoid refrigerant continues to leak.
In summary, the coolant leakage guard method of air conditioner according to embodiments of the present invention, by the room of outdoor unit
The outlet of external heat exchanger sets the first magnetic valve, and sets the second magnetic valve in the air entry of compressor, occurs in air conditioner cold
Control air conditioner is run in a chiller mode when matchmaker leaks, and controls the first magnetic valve and the second magnetic valve successively to close.Thus, exist
The magnetic valve exported during coolant leakage by closing outdoor heat exchanger with the refrigerant of prevent leakage continues to flow into indoor set, Ran Houtong
Refrigerant recovering that forced refrigeration will leak out is crossed to outdoor unit, then by close the second magnetic valve the refrigerant of recovery is enclosed it is outdoor
Machine, so that the refrigerant that promptly will leak out is transferred to outside, is prevented effectively from coolant leakage particularly combustible refrigerant and leaks to room
The potential safety hazard that interior user brings, the personal safety of user of the protection in indoor environment, improves the safety that air conditioner is used
Property.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device or element of meaning must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, unless otherwise clear and definite restriction.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (9)
1. a kind of coolant leakage protection device of air conditioner, it is characterised in that including：
It is arranged at the first magnetic valve of the outdoor heat exchanger outlet of outdoor unit in the air conditioner；
It is arranged at the second magnetic valve of the compressor air suction mouthful of outdoor unit in the air conditioner；
Control unit, described control unit is connected with first magnetic valve and second magnetic valve respectively, and the control is single
Member is used to control the air conditioner to run in a chiller mode when coolant leakage occurs for the air conditioner, and controls first electricity
Magnet valve and second magnetic valve are successively closed.
2. the coolant leakage protection device of air conditioner according to claim 1, it is characterised in that described control unit, enters
One step be used for the air conditioner occur coolant leakage when control first magnetic valve first to close, and control the air conditioner with
Refrigeration mode runs preset time, and controls after the preset time second closed electromagnetic valve again.
3. the coolant leakage protection device of air conditioner according to claim 2, it is characterised in that described control unit, also
For after second closed electromagnetic valve is controlled, controlling the compressor out of service, and control the air conditioner to send
Refrigerant fault warning.
4. the coolant leakage protection device of air conditioner according to claim 1, it is characterised in that described control unit is used for
First magnetic valve and second magnetic valve is controlled to be both turned on when coolant leakage does not occur for the air conditioner.
5. a kind of air conditioner, it is characterised in that include the coolant leakage of the air conditioner according to any one of claim 1-4
Protection device.
6. the coolant leakage guard method of a kind of air conditioner, it is characterised in that the air conditioner includes being arranged at the air conditioner
First magnetic valve of the outdoor heat exchanger outlet of middle outdoor unit and the compressor air suction for being arranged at outdoor unit in the air conditioner
Second magnetic valve of mouth, the described method comprises the following steps：
Detect whether the air conditioner occurs coolant leakage；
If coolant leakage occurs for the air conditioner, the air conditioner is controlled to run in a chiller mode, and control described first
Magnetic valve and second magnetic valve are successively closed.
7. the coolant leakage guard method of air conditioner according to claim 6, it is characterised in that the control air-conditioning
Device runs and controls first magnetic valve and second magnetic valve successively closing in a chiller mode, including：
Control first magnetic valve first to close, and control the air conditioner to run preset time in a chiller mode；
After the preset time, then control second closed electromagnetic valve.
8. the coolant leakage guard method of air conditioner according to claim 7, it is characterised in that also include：
After second closed electromagnetic valve is controlled, control the compressor out of service, and control the air conditioner to send
Refrigerant fault warning.
9. the coolant leakage guard method of air conditioner according to claim 6, it is characterised in that also include：
When coolant leakage does not occur for the air conditioner, first magnetic valve and second magnetic valve is controlled to be both turned on.
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| CN110044017A (en) * | 2019-03-26 | 2019-07-23 | 青岛海尔空调器有限总公司 | A kind of electrochemistry air-conditioning and its control method |
| 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 |
| CN110469951A (en) * | 2019-08-19 | 2019-11-19 | 青岛海尔空调器有限总公司 | A kind of control method of air conditioner, storage medium and air conditioner |
| CN110486884A (en) * | 2019-08-19 | 2019-11-22 | 青岛海尔空调器有限总公司 | A kind of air conditioner, control method and storage medium |
| CN110848876A (en) * | 2018-08-21 | 2020-02-28 | 奥克斯空调股份有限公司 | Refrigerant leakage detection method and system and air conditioner |
| CN111397086A (en) * | 2020-03-25 | 2020-07-10 | 珠海格力电器股份有限公司 | Refrigerant detection method and device for air conditioning system, air conditioner and storage medium |
| CN111503852A (en) * | 2020-04-29 | 2020-08-07 | 广东美的暖通设备有限公司 | Air conditioner and control method and device thereof |
| WO2023246779A1 (en) * | 2022-06-23 | 2023-12-28 | 青岛海尔空调电子有限公司 | Refrigerant leakage control method and system for air conditioner, and air conditioner |
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| CN108488916A (en) * | 2018-04-19 | 2018-09-04 | 青岛海信日立空调系统有限公司 | A kind of air conditioner and its control method |
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| CN110469951A (en) * | 2019-08-19 | 2019-11-19 | 青岛海尔空调器有限总公司 | A kind of control method of air conditioner, storage medium and air conditioner |
| CN110486884A (en) * | 2019-08-19 | 2019-11-22 | 青岛海尔空调器有限总公司 | A kind of air conditioner, control method and storage medium |
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| CN111397086B (en) * | 2020-03-25 | 2021-06-04 | 珠海格力电器股份有限公司 | Refrigerant detection method and device for air conditioning system, air conditioner and storage medium |
| CN111503852A (en) * | 2020-04-29 | 2020-08-07 | 广东美的暖通设备有限公司 | Air conditioner and control method and device thereof |
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| WO2023246779A1 (en) * | 2022-06-23 | 2023-12-28 | 青岛海尔空调电子有限公司 | Refrigerant leakage control method and system for air conditioner, and air conditioner |
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Application publication date: 20170818 |