CN106369891A - Air conditioning unit and control method thereof - Google Patents
Air conditioning unit and control method thereof Download PDFInfo
- Publication number
- CN106369891A CN106369891A CN201610972980.0A CN201610972980A CN106369891A CN 106369891 A CN106369891 A CN 106369891A CN 201610972980 A CN201610972980 A CN 201610972980A CN 106369891 A CN106369891 A CN 106369891A
- Authority
- CN
- China
- Prior art keywords
- air conditioning
- conditioning unit
- heat exchanger
- outdoor heat
- compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
-
- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
Abstract
The invention discloses an air conditioning unit and a control method thereof. The air conditioning unit comprises a compressor, an outdoor heat exchanger and a bypassing device, and refrigerant discharged from the compressor can be bypassed to an inlet end of the outdoor heat exchanger or an outlet end of the outdoor heat exchanger by the bypassing device. When a refrigerating mode of the air conditioning unit disclosed by the invention is switched into a heating mode, if liquid refrigerant is discharged from the compressor, the liquid refrigerant is bypassed to the inlet end of the outdoor heat exchanger or the outlet end of the outdoor heat exchanger by the bypassing device, the liquid refrigerant which flows to a four-way valve from an air outlet of the compressor is reduced effectively, and therefore, the four-way valve is prevented from being damaged by liquid impact.
Description
Technical field
A kind of the present invention relates to air-conditioning technical field, more particularly, it relates to air conditioning unit and its control method.
Background technology
Cross valve is air conditioning unit indispensable part, but is easier to impaired problem.At present, cross valve is big
Part by liquid hazards, specifically, when outdoor environment is less than indoor environment, place, by height pressure reduction by air conditioning unit long-term shutdown
Impact or compressor crankcase in freezing oil attraction cause refrigerant migration, liquid refrigerants is back to compressor, lead to compress
Liquid refrigerants discharged by machine, when air conditioning system is transformed into and heats state from refrigerating state, during cross valve commutation, the main cunning of cross valve
Valve 11 has to pass through centre position, as shown in figure 1, when main slide valve 11 is centrally located, the e pipe of cross valve, c pipe, s pipe are several
Shut by main slide valve 11, flow velocity reduces the most substantially, and due to the Incoercibility of liquid refrigerants, the pressure of four-way valve insertion is
Greatly, now cross valve just easily by liquid hazards.
If in addition, the e pipe of cross valve, s pipe and three adapters of c pipe are vertically upward, being more easily caused cross valve and damaged by liquid hammer
Bad.In order to reduce cross valve by the probability of liquid hazards, e pipe, s pipe and c manage vertically downward, such as Fig. 2.But, it is arranged so as to meeting
Air conditioning unit pipe-line system is limited, leads to pipe-line system more complicated, the workload of pipeline arrangement is larger.
In sum, how to prevent cross valve by liquid hazards, be current those skilled in the art's problem demanding prompt solution.
Content of the invention
It is an object of the invention to provide it is a kind of air conditioning unit, to prevent cross valve by liquid hazards.Another mesh of the present invention
Be provide a kind of air conditioning unit control method.
To achieve these goals, the following technical scheme of present invention offer:
A kind of air conditioning unit, comprising: compressor, outdoor heat exchanger and by-pass collar, wherein, described by-pass collar can be by
The coolant that described compressor is discharged bypasses the port of export of arrival end to described outdoor heat exchanger or described outdoor heat exchanger.
Preferably, the air vent of described compressor is connected with described air conditioning unit cross valve by the first connecting tube, institute
The import stating by-pass collar is connected with described first connecting tube.
Preferably, the arrival end of described outdoor heat exchanger has: outdoor heat exchanger entrance, with described outdoor heat exchanger entrance
Second connecting tube of connection；
When the coolant that described compressor is discharged is bypassed the arrival end to described outdoor heat exchanger by described by-pass collar, described
The outlet of by-pass collar is connected with described second connecting tube.
Preferably, the port of export of described outdoor heat exchanger has: outdoor heat exchanger outlet, with the outlet of described outdoor heat exchanger
3rd connecting tube of connection；
When the coolant that described compressor is discharged is bypassed the port of export to described outdoor heat exchanger by described by-pass collar, described
The outlet of by-pass collar is connected with described 3rd connecting tube.
Preferably, the outlet of described by-pass collar and the communicating position of described 3rd connecting tube are located at described outdoor heat exchanger
And the orifice union in described 3rd connecting tube between.
Preferably, described by-pass collar includes: bypass pipe, and is serially connected with the control valve of described bypass pipe.
Preferably, above-mentioned air conditioning unit also include:
Acquisition module, discharges liquid refrigerants for obtaining described compressor；
First control module, for receive described air conditioning unit heat start-up command after, described compressor discharge liquor
During state coolant, described control valve is controlled to open.
Preferably, described acquisition module includes:
First temperature sensor, for detecting outdoor environment temperature；
Second temperature sensor, for detecting indoor environment temperature；
Pressure transducer, for detecting the pressure at expulsion of described compressor；
Recording unit, for recording described air conditioning unit downtime；
Identifying unit, for when meeting pre-conditioned, judging that liquid refrigerants discharged by described compressor；
Wherein, described pre-conditioned it is: before described air conditioning unit start, described outdoor environment temperature is not more than first to be preset
Temperature and described downtime are not less than the first Preset Time；Or,
Described pre-conditioned it is: before described air conditioning unit start, described indoor environment temperature and described outdoor environment temperature
Difference be not less than preset difference value and described downtime and be not less than the second Preset Time；Or,
Described pre-conditioned it is: after described air conditioning unit start, described pressure at expulsion is not less than the first preset pressure.
Preferably, above-mentioned air conditioning unit also include:
Second control module, for after described control valve opens the 3rd Preset Time, controlling described control valve to close.
The present invention provide air conditioning unit, from refrigeration mode to heating mode switch when, if compressor discharge liquid refrigerants,
Then using by-pass collar, liquid refrigerants is bypassed the port of export of arrival end to outdoor heat exchanger or outdoor heat exchanger, effectively reduce
It flow to the liquid refrigerants of cross valve from the air vent of compressor, then prevent cross valve by liquid hazards.
Meanwhile, what the present invention provided is air conditioning unit, and when being run with heating mode, gaseous coolant enters to enter the room by by-pass collar
The arrival end of external heat exchanger or the port of export of outdoor heat exchanger, that is, the air conditioning unit low-pressure end of gaseous coolant entrance, increased sky
Adjust the flow system flow of unit, improve air conditioning unit low pressure, increased air conditioning unit reliability.
Meanwhile, the present invention provide air conditioning unit it is therefore prevented that cross valve by liquid hazards, then need not require the e of cross valve
Pipe, s pipe and c manage vertically downward, the e of cross valve can be made to manage, s pipe and c pipe are arranged vertically upward, relieve cross valve to whole sky
Adjust the restriction of the pipe-line system of unit, pipe-line system can be simplified it is also possible to reduce the workload of pipeline arrangement.
Air conditioning unit based on above-mentioned offer, present invention also offers a kind of air conditioning unit control method, this air conditioner
The control method of group includes step:
What reception was air conditioning unit heats start-up command；
Obtain whether described air conditioning unit compressor discharges liquid refrigerants；
If liquid refrigerants discharged by described compressor, the coolant that described compressor is discharged bypasses to described air conditioning unit room
The arrival end of external heat exchanger or the port of export of described outdoor heat exchanger.
Preferably, in above-mentioned air conditioning unit control method, obtain whether described compressor discharges liquid refrigerants, concrete bag
Include step:
The pressure at expulsion of detection indoor environment temperature, outdoor environment temperature and described compressor；
Record described air conditioning unit downtime；
If meeting pre-conditioned, judge described air conditioning unit discharge liquid refrigerants；
Wherein, described pre-conditioned it is: before described air conditioning unit start, described outdoor environment temperature is not more than first to be preset
Temperature and described downtime are not less than the first Preset Time；Or,
Described pre-conditioned it is: before described air conditioning unit start, described indoor environment temperature and described outdoor environment temperature
Difference be not less than preset difference value and described downtime and be not less than the second Preset Time；Or
Described pre-conditioned it is: after described air conditioning unit start, the pressure at expulsion of described compressor is not less than first and presets
Pressure.
Preferably, above-mentioned air conditioning unit control method further comprises the steps of:
When the coolant that described compressor is discharged bypasses to the arrival end of described outdoor heat exchanger or described outdoor heat exchanger
When the bypass time of the port of export is more than three Preset Times, stop bypass.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention and technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing providing obtains other accompanying drawings.
Fig. 1 is the structural representation of cross valve in prior art；
Fig. 2 is the scheme of installation of cross valve in prior art；
Fig. 3 is air conditioning unit structural representation provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
As shown in figure 3, provided in an embodiment of the present invention air conditioning unit, comprising: compressor 21, cross valve 211, indoor heat exchange
Device 212, outdoor heat exchanger 27 and orifice union 29.
The d pipe mouth of pipe of above-mentioned cross valve 211 is connected by the first connecting tube 214 with the air vent of compressor 21, cross valve
The 211 c pipe mouth of pipe is connected by the second connecting tube 23 with outdoor heat exchanger 27, the e pipe mouth of pipe of cross valve 211 and indoor heat exchanger
212 pass through the 4th connecting tube connection, and the s pipe mouth of pipe of cross valve 211 is connected with the air entry of compressor 21.
Above-mentioned indoor heat exchanger 212 is connected by the 3rd connecting tube 28 with outdoor heat exchanger 27, and orifice union 29 is serially connected with
3rd connecting tube 28, is additionally provided with the first stop valve 210 between orifice union 29 and indoor heat exchanger 212, the first stop valve 210 is gone here and there
It is connected to the 3rd connecting tube 28, between the e pipe mouth of pipe of indoor heat exchanger 212 and cross valve 211, be additionally provided with the second stop valve 213, the
Two stop valves 213 are serially connected with the 4th connecting tube.
For the ease of description, one end that outdoor heat exchanger 27 is connected with the c pipe mouth of pipe of cross valve 211 is designated as outdoor heat exchange
The arrival end of device 27, one end that outdoor heat exchanger 27 is connected with indoor heat exchanger 212 is designated as the port of export of outdoor heat exchanger 27.
When air conditioning unit operation in a chiller mode, coolant flows into outdoor heat exchanger 27 from the arrival end of outdoor heat exchanger 27, and coolant is certainly
The port of export of outdoor heat exchanger 27 flows out outdoor heat exchanger 27；When the air conditioning unit operation with heating mode, coolant changes from outdoor
The port of export of hot device 27 flows into outdoor heat exchanger 27, and coolant flows out outdoor heat exchanger 27 from the arrival end of outdoor heat exchanger 27.
Certainly, also one end that just outdoor heat exchanger 27 is connected with the c pipe mouth of pipe of cross valve 211 outdoor heat exchanger can be designated as
27 port of export, one end that outdoor heat exchanger 27 is connected with indoor heat exchanger 212 is designated as the arrival end of outdoor heat exchanger 27, and
It is not limited to above-described embodiment.It is understood that the restriction of arrival end to outdoor heat exchanger 27 and the port of export, have no effect on
The technical scheme that the embodiment of the present invention is protected.
It is understood that the arrival end of above-mentioned outdoor heat exchanger 27 has: outdoor heat exchanger entrance and the second connecting tube
23, wherein, one end of the second connecting tube 23 is connected with outdoor heat exchanger entrance, the other end of the second connecting tube 23 and cross valve
211 c pipe mouth of pipe connection.
The port of export of above-mentioned outdoor heat exchanger 27 has: outdoor heat exchanger outlet and the 3rd connecting tube 28, and wherein, the 3rd even
One end of adapter 28 and outdoor heat exchanger outlet, the other end of the 3rd connecting tube 28 is connected with indoor heat exchanger 212.
In order to prevent cross valve 211 by liquid hazards, above-mentioned air conditioning unit also include by-pass collar, this by-pass collar can
The coolant that compressor 21 is discharged bypasses the port of export of arrival end to outdoor heat exchanger 27 or outdoor heat exchanger 27.
It is understood that the coolant that compressor 21 can be discharged by by-pass collar bypasses to the entrance of outdoor heat exchanger 27
End or the port of export of outdoor heat exchanger 27, refer to that the coolant that compressor 21 is discharged can flow into outdoor heat exchanger by by-pass collar
27 arrival end or the port of export of outdoor heat exchanger 27.
Provided in an embodiment of the present invention air conditioning unit, from refrigeration mode to heating mode switch when, if compressor 21 is discharged
Liquid refrigerants, then bypass arrival end or the room to outdoor heat exchanger 27 using by-pass collar by the liquid refrigerants that compressor 21 is discharged
The port of export of external heat exchanger 27, effectively reduces the liquid refrigerants flowing to cross valve 211 from the air vent of compressor 21, then prevents
Cross valve 211 is by liquid hazards.
Meanwhile, provided in an embodiment of the present invention air conditioning unit, when being run with heating mode, gaseous coolant passes through by-pass collar
Enter the arrival end of outdoor heat exchanger 27 or the port of export of outdoor heat exchanger 27, that is, gaseous coolant enters air conditioning unit low pressure
End, increased air conditioning unit flow system flow, improves air conditioning unit low pressure, increased air conditioning unit reliability.
Meanwhile, provided in an embodiment of the present invention air conditioning unit it is therefore prevented that cross valve 211 by liquid hazards, then need not require
The e pipe of cross valve 211, s pipe and c manage vertically downward, the e of cross valve 211 can be made to manage, s pipe and c pipe are arranged vertically upward, release
The restriction to entirely air conditioning unit pipe-line system for the cross valve 211, can simplify pipe-line system it is also possible to reduce pipeline arrangement
Workload.
Above-mentioned air conditioning unit in, the coolant that compressor 21 can be discharged by by-pass collar bypasses entering to outdoor heat exchanger 27
Mouth end or the port of export of outdoor heat exchanger 27, then the import of by-pass collar is connected with the air vent of compressor 21.By-pass collar
Import can directly be connected with the air vent of compressor 21, also can indirect communication, that is, the import of by-pass collar pass through the first connecting tube
214 with the air vent indirect communication of compressor 21.Install for convenience, prioritizing selection the latter, specifically, the import of by-pass collar
Connect with the first connecting tube 214.
In actual application, prioritizing selection hole flanging in the first connecting tube 214, bypass pipe 24 and this of by-pass collar
Hole flanging coordinates.Certainly, miscellaneous part or structure also may be selected to realize the connection of the first connecting tube 214 and by-pass collar, example
As bypass valve etc. it is not limited to this.
For the ease of installing, the communicating position of the import of above-mentioned by-pass collar and the first connecting tube 214 is away from compressor 21
Distance, less than the import of by-pass collar and the communicating position of the first connecting tube 214 distance away from cross valve 211, i.e. by-pass collar
Import near compressor 21 air vent.
Above-mentioned air conditioning unit in, the import of by-pass collar, closer to the air vent of compressor 21, also allows for compressed
The liquid refrigerants that machine 21 is discharged flow to the arrival end of outdoor heat exchanger 27 or the port of export of outdoor heat exchanger 27 through by-pass collar.
In actual application, the communicating position of the import of by-pass collar and the first connecting tube 214 is away from compressor 21
The distance of air vent, is designed according to actual needs.Preferably, the connection of the import of by-pass collar and the first connecting tube 214
The distance of the air vent away from compressor 21 for the position is 100mm.
Above-mentioned air conditioning unit in, the coolant that compressor 21 can be discharged by by-pass collar bypasses entering to outdoor heat exchanger 27
Mouth end or the port of export of outdoor heat exchanger 27, then the arrival end of the outlet of by-pass collar and outdoor heat exchanger 27 or outdoor heat exchanger
27 port of export connection.
When the outlet of by-pass collar is connected with the arrival end of outdoor heat exchanger 27, by-pass collar can be by compressor 21 row
The coolant going out bypasses to the arrival end of outdoor heat exchanger 27.The arrival end of above-mentioned outdoor heat exchanger 27 has outdoor heat exchanger entrance
With the second connecting tube 23, install for convenience, the outlet preferably selecting by-pass collar is connected with the second connecting tube 23.Certainly,
The outlet of optional by-pass collar directly connects with outdoor heat exchanger entrance it is not limited to above-described embodiment.
In the same manner, when the outlet of by-pass collar is connected with the port of export of outdoor heat exchanger 27, by-pass collar can will compress
The coolant that machine 21 is discharged bypasses to the port of export of outdoor heat exchanger 27.The port of export of above-mentioned outdoor heat exchanger 27 has outdoor heat exchange
Device outlet and the 3rd connecting tube 28, install, the outlet preferably selecting by-pass collar is connected with the 3rd connecting tube 28 for convenience.When
So, outlet and the outdoor heat exchanger outlet of by-pass collar also may be selected it is not limited to above-described embodiment.
When the outlet of by-pass collar is connected with the 3rd connecting tube 28, it is serially connected with the first cut-off due in the 3rd connecting tube 28
Valve 210 and orifice union 29, then the outlet of by-pass collar and the communicating position of the 3rd connecting tube 28 can be located at the first stop valve 210
And orifice union 29 between, between the first stop valve 210 and indoor heat exchanger 212 or orifice union 29 and outdoor heat exchanger
Between 27.
Install and simplify pipeline, the outlet of prioritizing selection by-pass collar and the connection position of the 3rd connecting tube 28 for convenience
Setting between outdoor heat exchanger 27 and orifice union 29.
Further, the outlet of by-pass collar and the communicating position of the 3rd connecting tube 28 distance away from outdoor heat exchanger 27,
Less than the outlet of by-pass collar and the communicating position of the 3rd connecting tube 28 distance away from orifice union 29.Certainly, side also may be selected
The communicating position of the outlet of exchange device and the 3rd connecting tube 28 is located at the interposition between orifice union 29 and outdoor heat exchanger 27
Put it is not limited to above-described embodiment.
The coolant that compressor 21 can be discharged by above-mentioned by-pass collar bypasses arrival end or outdoor to outdoor heat exchanger 27
The port of export of heat exchanger 27, there are various structures in this by-pass collar, for example, by-pass collar only includes bypass pipe 24, this bypass pipe
24 one end is connected with the air vent of compressor 21, the arrival end of the other end of this bypass pipe 24 and outdoor heat exchanger 27 or outdoor
The port of export connection of heat exchanger 27；Or by-pass collar includes bypass pipe 24 and bypass valve, bypass valve is serially connected with the first connecting tube
214, and the by-pass port of bypass valve connected with one end of bypass pipe 24, the entrance of the other end of bypass pipe 24 and outdoor heat exchanger 27
The port of export connection of end or outdoor heat exchanger 27.
Install for convenience and control, the above-mentioned by-pass collar of prioritizing selection includes: bypass pipe 24, it is serially connected with bypass pipe 24
Control valve 25.It is understood that the import of bypass pipe 24 is the import of by-pass collar, the outlet of bypass pipe 24 is and bypasses
The outlet of device；Then one end of bypass pipe 24 is connected with the air vent of compressor 21, the other end of bypass pipe 24 and outdoor heat exchange
The port of export connection of the arrival end of device 27 or outdoor heat exchanger 27, control valve 25 is located between the two ends of bypass pipe 24.
For the pipe diameter size of bypass pipe 24, can be designed according to actual needs.For the ease of setting, also allow for drawing
Stream, a diameter of 6mm of prioritizing selection bypass pipe 24.Certainly, also may be selected bypass pipe 24 other numerical value a diameter of, such as 4mm,
8mm etc. is it is not limited to above-described embodiment.
For the type of control valve 25, can be selected according to actual needs, such as control valve 25 is pneumatic operated valve, electrodynamic valve
Or electromagnetic valve etc., the embodiment of the present invention does not limit to this.For the ease of controlling, prioritizing selection control valve 25 is electromagnetic valve.
Preferably, above-mentioned air conditioning unit also include: acquisition module and the first control module；Wherein, acquisition module is used for obtaining
Compressor 21 is taken to discharge liquid refrigerants；First control module be used for receive air conditioning unit heat start-up command after, compressor
During 21 discharge liquid refrigerants, control valve 25 is controlled to open.
It should be noted that the first control module receives before heating start-up command, air conditioning unit to be in refrigeration mode (empty
Adjust unit start or shut down).
Above-mentioned air conditioning unit it is achieved that automatically controlling to by-pass collar, convenient for users.
Above-mentioned air conditioning unit in, obtain compressor 21 and discharge liquid refrigerants, comprising: obtaining compressor 21, to discharge liquid cold
Liquid refrigerants discharged by matchmaker and/or acquisition compressor 21.Obtain compressor 21 and discharge liquid refrigerants, there are various ways, specifically
Selected according to practical situation.
For the ease of determining compressor 21 discharge liquid refrigerants, above-mentioned acquisition module includes: the first temperature sensor 26, the
Two temperature sensors, pressure transducer 22, recording unit and identifying unit.
Wherein, the first temperature sensor 26 is used for detecting outdoor environment temperature；Second temperature sensor is used for detecting interior
Ambient temperature；Pressure transducer 22 is used for detecting the pressure at expulsion of compressor 21；Recording unit is used for recording air conditioning unit stopping
The machine time；Identifying unit is used for, when meeting pre-conditioned, judging that liquid refrigerants discharged by compressor 21.
Above-mentioned pre-conditioned it is: before air conditioning unit start, outdoor environment temperature is not more than the first preset temperature and air conditioner
The downtime of group is not less than the first Preset Time；Or, above-mentioned pre-conditioned it is: before air conditioning unit start, indoor environment temperature
The difference of degree and outdoor environment temperature is not less than preset difference value and air conditioning unit downtime is not less than the second Preset Time；
Or, above-mentioned pre-conditioned it is: after air conditioning unit start, the pressure at expulsion of compressor 21 is not less than the first preset pressure.
It is understood that when being unsatisfactory for pre-conditioned, identifying unit judges that liquid refrigerants do not discharged by compressor 21.
When above-mentioned pre-conditioned it is: before air conditioning unit start, outdoor environment temperature is not more than the first preset temperature and air-conditioning
The downtime of unit is not less than the first Preset Time；Or, above-mentioned pre-conditioned it is: before air conditioning unit start, indoor environment
The difference of temperature and outdoor environment temperature is not less than preset difference value and air conditioning unit downtime is not less than the second Preset Time
When, get compressor 21 and can discharge liquid refrigerants.
When above-mentioned pre-conditioned it is: after air conditioning unit start, the pressure at expulsion of compressor 21 is not less than the first preset pressure
When, get compressor 21 and discharge liquid refrigerants.
Above-mentioned air conditioning unit, only may lead to cross valve 211 by liquid hazards in the case of opening controlling valve 25, realize
The bypass of liquid refrigerants, it is to avoid cross valve 211, by liquid hazards, improves reliability.
Above-mentioned first temperature sensor 26 can be in the casing of air conditioning unit off-premises station, also can be located at outdoor heat exchanger
On 27 shell.In order to improve service life, prioritizing selection the latter.Above-mentioned second temperature sensor shell is located at air conditioning unit room
In the casing of interior machine, also can be located at the shell of indoor heat exchanger 212.Detect pressure at expulsion for convenience, prioritizing selection pressure passes
Sensor 22 located at the first connecting tube 214 and near compressor 21 air vent.
In order to improve control accuracy, above-mentioned preset difference value is 5 DEG C.Further, indoor environment temperature and outdoor environment temperature
The difference of degree is 8 DEG C.Certainly, also dependent on needing to select the temperature difference of indoor environment temperature and outdoor environment temperature to be other numbers
Value is it is not limited to above-described embodiment.
Above-mentioned air conditioning unit in, for the first Preset Time, the second Preset Time, the first preset temperature and first preset pressure
The concrete numerical value of power, is set according to actual needs.Preferably, the first preset temperature is 0 DEG C, and the first Preset Time is 5h,
Second Preset Time is 5h, and the first preset pressure is 3.9mpa.Certainly, the concrete numerical value that above-mentioned parameter also may be selected is other,
It is not limited to above-described embodiment.
Above-mentioned pre-conditioned it is: after air conditioning unit start, when the pressure at expulsion of compressor 21 is not less than the first preset pressure,
Pre-conditioned particularly as follows: after air conditioning unit start the 4th Preset Time, the pressure at expulsion of compressor 21 is not less than the first default pressure
Power.Specifically, the 4th Preset Time is 5-20s.Certainly, suitably reduce or increase the 4th pre- also dependent on being actually needed
If the time, the embodiment of the present invention does not limit to this.
Further, above-mentioned air conditioning unit also include the second control module, this second control module be used in control valve 25
After opening the 3rd Preset Time, control valve 25 is controlled to close.So, it is easy to ensure air conditioning unit normal operation.
The concrete numerical value of above-mentioned 3rd Preset Time, is selected according to actual needs.Preferably, the 3rd Preset Time is
5-20s.
Further, above-mentioned air conditioning unit the 3rd control module and the 4th control module are also included；Wherein, the 3rd control mould
Block is used for air conditioning unit with heating mode operation, when outdoor environment temperature is not less than the second preset temperature and compressor 21
When pressure at expulsion is not less than the second preset pressure, control valve 25 is controlled to open；4th control module is used for the row in compressor 21
When atmospheric pressure is not more than three preset pressure, control valve 25 is controlled to close；Second preset temperature be more than the first preset temperature, the 3rd
Preset pressure is less than the second preset pressure.
Above-mentioned air conditioning unit in, when indoor environment temperature or outdoor environment temperature are not less than the second preset temperature, air-conditioning
Unit is easier to overload heat, and when the pressure at expulsion of compressor 21 is not less than the second preset pressure, shows compressor 21
Pressure at expulsion larger, now need reduce pressure at expulsion, specifically, the 3rd control module control control valve 25 open, coolant
It flow to the arrival end of outdoor heat exchanger 27 or the port of export of outdoor heat exchanger 27 by by-pass collar, reduce pressure at expulsion, carry
High system reliability, improves system overload heating capacity.When the pressure at expulsion of compressor 21 is not more than three preset pressure,
4th control module controls control valve 25 to close, so that the pressure at expulsion of compressor 21 maintains in set point.
For the concrete numerical value of the second preset temperature, the second preset pressure and the 3rd preset pressure, can be according to actual needs
Set.Preferably, the second preset temperature is 25 DEG C, and the second preset pressure is 3.9mpa, and the 3rd preset pressure is 3.2mpa.
Certainly, also may be selected above-mentioned parameter concrete numerical value be other it is not limited to this.
Air conditioning unit based on above-described embodiment offer, the embodiment of the present invention additionally provides a kind of air conditioning unit controlling party
Method, this air conditioning unit control method specifically includes step:
S01) receive the air conditioning unit start-up command that heats:
It is understood that receive air conditioning unit heat start-up command before, air conditioning unit be in refrigeration mode, then connect
Receive air conditioning unit heat start-up command after, need cross valve 211 to commutate.Air conditioning unit control provided in an embodiment of the present invention
Method processed was carried out before cross valve 211 commutation.
S02) obtain air conditioning unit compressor and whether discharge liquid refrigerants:
When liquid refrigerants discharged by compressor 21, relatively it is easily caused cross valve 211 by liquid hammer, accordingly, it would be desirable to obtain compressor
Whether 21 discharge liquid refrigerants.Whether acquisition compressor 21 discharges liquid refrigerants includes: whether obtain compressor 21 can discharge liquor
Whether state coolant and/or acquisition compressor 21 have discharged liquid refrigerants.Obtain whether compressor 21 discharges liquid refrigerants, exist
Various ways, are selected with specific reference to practical situation.
Obtain for convenience, in above-mentioned steps, obtain whether compressor 21 discharges liquid refrigerants, specifically include step: inspection
Survey the pressure at expulsion of indoor environment temperature, detection outdoor environment temperature and detection compressor 21；When recording air conditioning unit shutdown
Between；If meeting pre-conditioned, judge air conditioning unit discharge liquid refrigerants.
Above-mentioned pre-conditioned it is: before air conditioning unit start, outdoor environment temperature is not more than the first preset temperature and air conditioner
The downtime of group is not less than the first Preset Time；Or,
Above-mentioned pre-conditioned it is: before air conditioning unit start, indoor environment temperature is not less than with the difference of outdoor environment temperature
Preset difference value and air conditioning unit downtime are not less than the second Preset Time；Or
Above-mentioned pre-conditioned it is: after air conditioning unit start, the pressure at expulsion of compressor 21 is not less than the first preset pressure.
If it is understood that being unsatisfactory for pre-conditioned, judge air conditioning unit not discharging liquid refrigerants.
Certainly, also can obtain whether compressor 21 discharges liquid refrigerants it is not limited to above-mentioned enforcement by other means
Example.
S03) if liquid refrigerants discharged by compressor, the coolant that compressor is discharged bypasses to air conditioning unit outdoor heat exchanger
Arrival end or outdoor heat exchanger the port of export:
For the ease of description, one end that outdoor heat exchanger 27 is connected with cross valve 211 is designated as entering of outdoor heat exchanger 27
Mouth end, one end that outdoor heat exchanger 27 is connected with indoor heat exchanger 212 is designated as the port of export of outdoor heat exchanger 27.Work as air conditioner
When group is run in a chiller mode, coolant flows into outdoor heat exchanger 27 from the arrival end of outdoor heat exchanger 27, and coolant is from outdoor heat exchange
The port of export of device 27 flows out outdoor heat exchanger 27；When the air conditioning unit operation with heating mode, coolant is from outdoor heat exchanger 27
The port of export flows into outdoor heat exchanger 27, and coolant flows out outdoor heat exchanger 27 from the arrival end of outdoor heat exchanger 27.
It is understood that the arrival end of above-mentioned outdoor heat exchanger 27 has: outdoor heat exchanger entrance and the second connecting tube
23, wherein, one end of the second connecting tube 23 is connected with outdoor heat exchanger entrance, the other end of the second connecting tube 23 and cross valve
211 connections.
The port of export of above-mentioned outdoor heat exchanger 27 has: outdoor heat exchanger outlet and the 3rd connecting tube 28, and wherein, the 3rd even
One end of adapter 28 and outdoor heat exchanger outlet, the other end of the 3rd connecting tube 28 is connected with indoor heat exchanger 212.
Above-mentioned air conditioning unit control method, the liquid refrigerants that compressor 21 is discharged bypasses entering to outdoor heat exchanger 27
Mouth end or the port of export of outdoor heat exchanger 27, then reduce the liquid refrigerants flowing to cross valve 211 from the air vent of compressor 21,
Then prevent cross valve 211 by liquid hazards.
In above-mentioned air conditioning unit control method, in order to improve control accuracy, above-mentioned preset difference value is 5 DEG C.Further,
Indoor environment temperature is 8 DEG C with the difference of outdoor environment temperature.Certainly, also dependent on need to select indoor environment temperature with outdoor
The temperature difference of ambient temperature is other numerical value it is not limited to above-described embodiment.
For the concrete numerical value of the first Preset Time, the second Preset Time, the first preset temperature and the first preset pressure, root
Set according to being actually needed.Preferably, the first preset temperature is 0 DEG C, and the first Preset Time is 5h, and the second Preset Time is
5h, the first preset pressure is 3.9mpa.Certainly, the concrete numerical value that above-mentioned parameter also may be selected is other it is not limited to above-mentioned
Embodiment.
Above-mentioned pre-conditioned it is: after air conditioning unit start, when the pressure at expulsion of compressor 21 is not less than the first preset pressure,
Pre-conditioned particularly as follows: after air conditioning unit start the 4th Preset Time, the pressure at expulsion of compressor 21 is not less than the first default pressure
Power.Specifically, the 4th Preset Time is 5-20s.Certainly, suitably reduce or increase the 4th pre- also dependent on being actually needed
If the time, the embodiment of the present invention does not limit to this.
Further, above-mentioned air conditioning unit control method further comprises the steps of:
When the time of bypass being more than three Preset Times, stop bypass.This bypass time is the coolant that compressor is discharged
Bypass the time of the port of export to the arrival end of outdoor heat exchanger or outdoor heat exchanger.
Specifically, when bypassing the arrival end to outdoor heat exchanger when the coolant that compressor is discharged, now stop bypass and be
The coolant stopping compressor discharge bypasses to the arrival end of outdoor heat exchanger；When the coolant that compressor is discharged bypasses to outdoor heat exchange
During the port of export of device, now stop the bypass coolant that as stopping compressor being discharged and bypass to the port of export of outdoor heat exchanger.On
State the concrete numerical value of the 3rd Preset Time, selected according to actual needs.Preferably, the 3rd Preset Time is 5-20s.
Above-mentioned air conditioning unit control method, is easy to ensure air conditioning unit normal operation.
Preferably, above-mentioned air conditioning unit control method further comprises the steps of:
During the air conditioning unit operation with heating mode, if outdoor environment temperature is not less than the second preset temperature and compressor 21
Pressure at expulsion be not less than the second preset pressure, then the coolant discharged compressor 21 bypasses to the arrival end of outdoor heat exchanger 27
Or the port of export of outdoor heat exchanger 27；
When the pressure at expulsion of machine 21 to be compressed is not more than three preset pressure, stop bypass；
Wherein, the second preset temperature is more than the first preset temperature；3rd preset pressure is less than the second preset pressure.
Above-mentioned air conditioning unit in, when indoor environment temperature or outdoor environment temperature are not less than the second preset temperature, air-conditioning
Unit is easier to overload heat, and when the pressure at expulsion of compressor 21 is not less than the second preset pressure, shows compressor 21
Pressure at expulsion larger, now need reduce pressure at expulsion, specifically, the 3rd control module control control valve 25 open, coolant
It flow to the arrival end of outdoor heat exchanger 27 or the port of export of outdoor heat exchanger 27 by by-pass collar, reduce pressure at expulsion, carry
High system reliability, improves system overload heating capacity.When the pressure at expulsion of compressor 21 is not more than three preset pressure,
4th control module controls control valve 25 to close, so that the pressure at expulsion of compressor 21 maintains in set point.
For the concrete numerical value of the second preset temperature, the second preset pressure and the 3rd preset pressure, can be according to actual needs
Set.Preferably, the second preset temperature is 25 DEG C, and the second preset pressure is 3.9mpa, and the 3rd preset pressure is 3.2mpa.
Certainly, also may be selected above-mentioned parameter concrete numerical value be other it is not limited to this.
Described above to the disclosed embodiments, makes those skilled in the art be capable of or uses the present invention.To this
Multiple modifications of a little embodiments will be apparent from for a person skilled in the art, and generic principles defined herein can
Without departing from the spirit or scope of the present invention, to realize in other embodiments.Therefore, the present invention will not be limited
It is formed on the embodiments shown herein, and be to fit to consistent with principles disclosed herein and features of novelty the widest
Scope.
Claims (12)
1. a kind of air conditioning unit, comprising: compressor and outdoor heat exchanger it is characterised in that air conditioning unit also include by-pass collar,
The coolant that described compressor can be discharged by described by-pass collar bypasses arrival end or described outdoor to described outdoor heat exchanger
The port of export of heat exchanger.
2. according to claim 1 air conditioning unit it is characterised in that described compressor air vent pass through the first connecting tube
Connect with described air conditioning unit cross valve, the import of described by-pass collar is connected with described first connecting tube.
3. according to claim 1 air conditioning unit it is characterised in that the arrival end of described outdoor heat exchanger has: outdoor
Heat exchanger entrance, the second connecting tube connecting with described outdoor heat exchanger entrance；
When the coolant that described compressor is discharged is bypassed the arrival end to described outdoor heat exchanger by described by-pass collar, described bypass
The outlet of device is connected with described second connecting tube.
4. according to claim 1 air conditioning unit it is characterised in that the port of export of described outdoor heat exchanger has: outdoor
Heat exchanger exit, the 3rd connecting tube with described outdoor heat exchanger outlet；
When the coolant that described compressor is discharged is bypassed the port of export to described outdoor heat exchanger by described by-pass collar, described bypass
The outlet of device is connected with described 3rd connecting tube.
5. according to claim 4 air conditioning unit it is characterised in that the outlet of described by-pass collar is connected with the described 3rd
The communicating position of pipe is located between the orifice union on described outdoor heat exchanger and described 3rd connecting tube.
6. air conditioning unit according to any one in claim 1-5 is it is characterised in that described by-pass collar includes: other
Siphunculus, and it is serially connected with the control valve of described bypass pipe.
7. according to claim 6 air conditioning unit it is characterised in that also including:
Acquisition module, discharges liquid refrigerants for obtaining described compressor；
First control module, for receive described air conditioning unit heat start-up command after, it is cold that liquid discharged by described compressor
During matchmaker, described control valve is controlled to open.
8. according to claim 7 air conditioning unit it is characterised in that described acquisition module includes:
First temperature sensor, for detecting outdoor environment temperature；
Second temperature sensor, for detecting indoor environment temperature；
Pressure transducer, for detecting the pressure at expulsion of described compressor；
Recording unit, for recording described air conditioning unit downtime；
Identifying unit, for when meeting pre-conditioned, judging that liquid refrigerants discharged by described compressor；
Wherein, described pre-conditioned it is: before described air conditioning unit start, described outdoor environment temperature is not more than the first default temperature
Spend and described downtime is not less than the first Preset Time；Or,
Described pre-conditioned it is: before described air conditioning unit start, the difference of described indoor environment temperature and described outdoor environment temperature
Not less than preset difference value and described downtime is not less than the second Preset Time to value；Or,
Described pre-conditioned it is: after described air conditioning unit start, described pressure at expulsion is not less than the first preset pressure.
9. according to claim 7 air conditioning unit it is characterised in that also including:
Second control module, for after described control valve opens the 3rd Preset Time, controlling described control valve to close.
10. a kind of air conditioning unit control method is it is characterised in that include step:
What reception was air conditioning unit heats start-up command；
Obtain whether described air conditioning unit compressor discharges liquid refrigerants；
If liquid refrigerants discharged by described compressor, the coolant that described compressor is discharged bypasses and changes to described air conditioning unit outdoor
The arrival end of hot device or the port of export of described outdoor heat exchanger.
Whether to discharge liquid cold it is characterised in that obtaining described compressor for 11. control methods according to claim 10
Matchmaker, specifically includes step:
The pressure at expulsion of detection indoor environment temperature, outdoor environment temperature and described compressor；
Record described air conditioning unit downtime；
If meeting pre-conditioned, judge described air conditioning unit discharge liquid refrigerants；
Wherein, described pre-conditioned it is: before described air conditioning unit start, described outdoor environment temperature is not more than the first default temperature
Spend and described downtime is not less than the first Preset Time；Or,
Described pre-conditioned it is: before described air conditioning unit start, the difference of described indoor environment temperature and described outdoor environment temperature
Not less than preset difference value and described downtime is not less than the second Preset Time to value；Or
Described pre-conditioned it is: after described air conditioning unit start, the pressure at expulsion of described compressor is not less than the first preset pressure.
12. control methods according to claim 10 are it is characterised in that further comprise the steps of:
When the coolant that described compressor is discharged bypasses the outlet of arrival end to described outdoor heat exchanger or described outdoor heat exchanger
When the bypass time at end is more than three Preset Times, stop bypass.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084547A (en) * | 2017-04-24 | 2017-08-22 | 青岛海尔空调电子有限公司 | Air-conditioning system and the control method for air-conditioning system |
| CN109539616A (en) * | 2019-01-02 | 2019-03-29 | 格力电器（合肥）有限公司 | Prevent the compressor protection structure and air-conditioning system of refrigerant migration |
| CN110726207A (en) * | 2019-10-28 | 2020-01-24 | 珠海格力电器股份有限公司 | Multi-system air conditioner control method and device |
| CN110736217A (en) * | 2019-09-27 | 2020-01-31 | 青岛海尔空调器有限总公司 | Control method and control device for defrosting of air conditioner and air conditioner |
| CN111076447A (en) * | 2019-12-30 | 2020-04-28 | 珠海格力电器股份有限公司 | Four-way valve mechanism, air conditioner and regulation and control method |
| CN111735164A (en) * | 2020-06-29 | 2020-10-02 | 曹永民 | Air conditioning system capable of continuously heating |
| CN111895577A (en) * | 2020-07-27 | 2020-11-06 | 宁波奥克斯电气股份有限公司 | Four-way valve reversing control method and device, storage medium and air conditioner |
| CN113446760A (en) * | 2020-03-27 | 2021-09-28 | 广东美的制冷设备有限公司 | Control method of refrigerating device and refrigerating device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09257345A (en) * | 1996-03-22 | 1997-10-03 | Mitsubishi Heavy Ind Ltd | Heat pump air-conditioner |
| CN101852508A (en) * | 2009-03-31 | 2010-10-06 | 日立空调·家用电器株式会社 | Air conditioner |
| JP2012127518A (en) * | 2010-12-13 | 2012-07-05 | Panasonic Corp | Air conditioner |
| CN202792325U (en) * | 2012-09-04 | 2013-03-13 | 美意(浙江)空调设备有限公司 | Anti-icing humidity control type water ground source air conditioner |
| CN203731756U (en) * | 2013-12-26 | 2014-07-23 | Tcl空调器(中山)有限公司 | Air-conditioner system |
| CN203908148U (en) * | 2014-06-13 | 2014-10-29 | 广东美的制冷设备有限公司 | Air conditioning system |
-
2016
- 2016-11-03 CN CN201610972980.0A patent/CN106369891B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09257345A (en) * | 1996-03-22 | 1997-10-03 | Mitsubishi Heavy Ind Ltd | Heat pump air-conditioner |
| CN101852508A (en) * | 2009-03-31 | 2010-10-06 | 日立空调·家用电器株式会社 | Air conditioner |
| JP2012127518A (en) * | 2010-12-13 | 2012-07-05 | Panasonic Corp | Air conditioner |
| CN202792325U (en) * | 2012-09-04 | 2013-03-13 | 美意(浙江)空调设备有限公司 | Anti-icing humidity control type water ground source air conditioner |
| CN203731756U (en) * | 2013-12-26 | 2014-07-23 | Tcl空调器(中山)有限公司 | Air-conditioner system |
| CN203908148U (en) * | 2014-06-13 | 2014-10-29 | 广东美的制冷设备有限公司 | Air conditioning system |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084547A (en) * | 2017-04-24 | 2017-08-22 | 青岛海尔空调电子有限公司 | Air-conditioning system and the control method for air-conditioning system |
| CN107084547B (en) * | 2017-04-24 | 2023-04-25 | 青岛海尔空调电子有限公司 | Air conditioning system and control method for air conditioning system |
| CN109539616A (en) * | 2019-01-02 | 2019-03-29 | 格力电器（合肥）有限公司 | Prevent the compressor protection structure and air-conditioning system of refrigerant migration |
| CN110736217A (en) * | 2019-09-27 | 2020-01-31 | 青岛海尔空调器有限总公司 | Control method and control device for defrosting of air conditioner and air conditioner |
| CN110726207A (en) * | 2019-10-28 | 2020-01-24 | 珠海格力电器股份有限公司 | Multi-system air conditioner control method and device |
| CN111076447A (en) * | 2019-12-30 | 2020-04-28 | 珠海格力电器股份有限公司 | Four-way valve mechanism, air conditioner and regulation and control method |
| CN113446760A (en) * | 2020-03-27 | 2021-09-28 | 广东美的制冷设备有限公司 | Control method of refrigerating device and refrigerating device |
| CN111735164A (en) * | 2020-06-29 | 2020-10-02 | 曹永民 | Air conditioning system capable of continuously heating |
| CN111895577A (en) * | 2020-07-27 | 2020-11-06 | 宁波奥克斯电气股份有限公司 | Four-way valve reversing control method and device, storage medium and air conditioner |
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|---|---|
| CN106369891B (en) | 2018-10-19 |
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