CN109631434A - System and method, outdoor machine of air-conditioner and the air-conditioning system of refrigerant are filled into outdoor machine of air-conditioner - Google Patents
System and method, outdoor machine of air-conditioner and the air-conditioning system of refrigerant are filled into outdoor machine of air-conditioner Download PDFInfo
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- CN109631434A CN109631434A CN201811523033.9A CN201811523033A CN109631434A CN 109631434 A CN109631434 A CN 109631434A CN 201811523033 A CN201811523033 A CN 201811523033A CN 109631434 A CN109631434 A CN 109631434A
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- Prior art keywords
- air
- refrigerant
- conditioner
- machine
- outdoor machine
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B45/00—Arrangements for charging or discharging refrigerant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/001—Charging refrigerant to a cycle
Abstract
The invention discloses system and method, outdoor machine of air-conditioner and air-conditioning systems that refrigerant is filled into outdoor machine of air-conditioner.Wherein, the system for filling refrigerant includes: test air-conditioning internal machine；Connecting tube, the connecting tube are adapted to the outdoor machine of air-conditioner of the test air-conditioning internal machine and refrigerant to be filled, and at least one of the connecting tube and the test air-conditioning internal machine are upper to have coolant injection mouth.The system of the filling refrigerant can save the process that refrigerant process duct is welded on outdoor machine of air-conditioner, and in the filling for carrying out completing refrigerant in outer machine while operation test to outdoor machine of air-conditioner.
Description
Technical field
The present invention relates to household appliance technical fields, specifically, the present invention relates to the systems for filling refrigerant into outdoor machine of air-conditioner
With method, outdoor machine of air-conditioner and air-conditioning system.
Background technique
Current domestic air conditioner generally fills refrigerant into outdoor machine of air-conditioner by individual process duct, and to sky
The filling of refrigerant is completed before adjusting outer machine to carry out operation test.However, directly being recombinated into outdoor machine of air-conditioner by refrigerant process duct cold
The method of matchmaker has the following problems: the production technology that setting refrigerant process duct directly results in outdoor machine of air-conditioner is complicated, increase manually at
This, production efficiency decline and material cost increase；In addition, refrigerant process duct needs sealing welding on outdoor machine of air-conditioner, sealing
Property is difficult to ensure that refrigerant easily leaks.Especially with the air-conditioning system of combustible refrigerant, refrigerant process duct is needed using Lip river gram
Lin Huan sealing or ultrasonic bonding, leakage problem can be protruded more.And if cancelling refrigerant process duct, directly by outside air-conditioning
Low pressure valve or high pressure valve on machine fill refrigerant into outdoor machine of air-conditioner, also there is following adverse effect: refrigerant is filled from low pressure valve, it is right
Outer machine inner compressor is inhaled, exhaust valve plate has impact, influences compressor reliability, increases compressor fault probability；If from high pressure
Valve fills refrigerant, then due to the drag effect of throttle part in outer machine, filling efficiency is necessarily reduced, and improves filling pressure, inevitable
Reduce the safety of coolant injection.
Thus, the existing means for filling refrigerant into outdoor machine of air-conditioner still have much room for improvement.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.In consideration of it, of the invention
It is proposed system and method, outdoor machine of air-conditioner and air-conditioning system that refrigerant is filled into outdoor machine of air-conditioner.The system of the filling refrigerant can save
The process for welding refrigerant process duct on outdoor machine of air-conditioner is gone, and is completed in outer machine while carrying out operation test to outdoor machine of air-conditioner
The filling of refrigerant.
In one aspect of the invention, the system that the invention proposes a kind of fills refrigerant into outdoor machine of air-conditioner.According to this
The embodiment of invention, the system include: test air-conditioning internal machine；Connecting tube, the connecting tube are adapted to test sky
The outdoor machine of air-conditioner of machine and refrigerant to be filled in adjusting, at least one of the connecting tube and the test air-conditioning internal machine above have cold
Matchmaker's fill port.
Coolant injection system according to an embodiment of the present invention, by the outdoor machine of air-conditioner of test air-conditioning internal machine and refrigerant to be filled
It is connected to by connecting tube, and is filled with refrigerant into coolant injection mouth.The test run of later on outdoor machine of air-conditioner, connecting tube and survey
Refrigerant at least one of air-conditioning internal machine on probation is recycled in test between air-conditioning internal machine and outdoor machine of air-conditioner, and refrigerant enters air-conditioning
In outer machine.As a result, in the filling for carrying out completing refrigerant in outer machine while operation test to outdoor machine of air-conditioner.Using of the invention cold
Matchmaker's filling system fills refrigerant into outdoor machine of air-conditioner, does not need that refrigerant process duct is being arranged on outdoor machine of air-conditioner in advance, avoids
The problems such as poor leakproofness brought by refrigerant process duct, cost raising and production efficiency reduce is set；And relative to directly passing through
Outer machine low pressure valve or high pressure valve fill refrigerant, and refrigerant is filled with connecting tube and test air-conditioning internal machine first by system of the invention
At least one in, subsequently through normal outer machine test run, refrigerant is made to enter outer machine, will not externally caused other interior units of machine
Influence or generate safety issue.In addition, in the prior art, after having filled refrigerant into outdoor machine of air-conditioner, then being carried out to it
Operation test not only increases manufacturing field and occupies, in test process is also easy to that refrigerant is caused to lose.And system of the invention is in sky
The filling that refrigerant is completed while adjusting outer machine to be tested can also be reduced while avoiding that refrigerant process duct additionally is arranged
The occupancy of manufacturing field.In summary, coolant injection system of the invention is applied to the refrigerant of outdoor machine of air-conditioner in which can be convenient
Filling improves the manufacture efficiency of outdoor machine of air-conditioner, reduces manufacturing cost, improves product quality and reliability.
In addition, coolant injection system according to the above embodiment of the present invention can also have the following additional technical features:
In some embodiments of the invention, the coolant injection mouth is copper pipe, nipple or quick coupling.
In some embodiments of the invention, in the copper pipe, the nipple and the quick coupling at least it
One is adapted to be coupled to external refrigerant source.In some embodiments of the invention, the connecting tube includes high-voltage tube and low-voltage tube, institute
Fill port is stated to be arranged at least one of the high-voltage tube and the low-voltage tube.
In some embodiments of the invention, the coolant injection system further comprises: vacuum evacuation device, described to take out very
Empty device is connected with the fill port.Before filling refrigerant into outdoor machine of air-conditioner, vacuum evacuation device is advanced with to outdoor machine of air-conditioner
Carry out vacuumize process.It can further improve the filling efficiency of refrigerant as a result,.
In another aspect of this invention, the invention proposes a kind of coolant injection systems using above-described embodiment to air-conditioning
The method of refrigerant is filled in outer machine.According to an embodiment of the invention, this method comprises: (1) is by the outdoor machine of air-conditioner of refrigerant to be filled
It is connect with test with air-conditioning internal machine by connecting tube；(2) at least one Xiang Suoshu connecting tube and the test air-conditioning internal machine
Coolant injection mouth in fill refrigerant；(3) test run is carried out to the outdoor machine of air-conditioner, to make the refrigerant enter the sky
Adjust outer machine.
The method of filling refrigerant according to an embodiment of the present invention, will be outside the air-conditioning of test air-conditioning internal machine and refrigerant to be filled
Machine is connected to by connecting tube, and is filled with refrigerant into the coolant injection mouth of connecting tube and test at least one of air-conditioning internal machine.
The test run of later on outdoor machine of air-conditioner, refrigerant at least one of connecting tube and test air-conditioning internal machine is in test with empty
It is recycled between machine and outdoor machine of air-conditioner in adjusting, refrigerant enters in outdoor machine of air-conditioner.The same of operation test is being carried out to outdoor machine of air-conditioner as a result,
When complete the filling of refrigerant in outer machine.Refrigerant is filled into outdoor machine of air-conditioner using method of the invention, is not needed in advance in sky
It adjusts and refrigerant process duct is set on outer machine, avoid poor leakproofness brought by setting refrigerant process duct, cost raising and production effect
The problems such as rate reduces；And relative to outer machine low pressure valve or high pressure valve filling refrigerant is directly passed through, method of the invention first will be cold
Matchmaker is filled at least one of connecting tube and test air-conditioning internal machine, subsequently through normal outer machine test run, make refrigerant into
Enter outer machine, externally will not impact or generate safety issue by other interior units of machine.In addition, in the prior art, to sky
It adjusts after having filled refrigerant in outer machine, then operation test is carried out to it, not only increase manufacturing field and occupy, be also easy in test process
Refrigerant is caused to lose.And method of the invention completes the filling of refrigerant while outdoor machine of air-conditioner is tested, and is avoiding additionally
While refrigerant process duct is set, the occupancy of manufacturing field can also be reduced.In summary, the side of filling refrigerant of the invention
Method is applied to the coolant injection of outdoor machine of air-conditioner in which can be convenient, and improves the manufacture efficiency of outdoor machine of air-conditioner, reduces manufacturing cost, improves
Product quality and reliability.
In addition, the method according to the above embodiment of the present invention that refrigerant is filled into outdoor machine of air-conditioner can also have it is following attached
The technical characteristic added:
In some embodiments of the invention, before step (2), the outdoor machine of air-conditioner is carried out vacuumizing place in advance
Reason.It can further improve the filling efficiency of refrigerant as a result,.
In some embodiments of the invention, vacuum evacuation device is connected to the fill port, to carry out described take out very
Vacancy reason.
In some embodiments of the invention, it is 0.01~100Pa that vacuum degree is controlled in the vacuumize process.As a result,
It can further improve the filling efficiency of refrigerant, and further increase the reliability of outdoor machine of air-conditioner product.
In some embodiments of the invention, in step (2), the filling pressure of the refrigerant is 0.01~100MPa.
It can further improve the filling efficiency of refrigerant as a result, and further increase the safety of production.
In another aspect of the invention, the invention proposes a kind of outdoor machine of air-conditioner.According to an embodiment of the invention, the air-conditioning
Outer machine includes: high pressure valve, low pressure valve and connecting tube, and the connecting tube is suitable for for the outdoor machine of air-conditioner connecting with air-conditioning internal machine, institute
It states at least one of high pressure valve and the low pressure valve to be connected with the connecting tube, there is coolant injection mouth in the connecting tube.
As a result, the outdoor machine of air-conditioner can by the coolant injection system of connecting tube and above-described embodiment for being connect with outdoor machine of air-conditioner or
The method of refrigerant is filled to fill refrigerant.In turn, condenser can use closed refrigerant pipeline in the outdoor machine of air-conditioner, avoid
The problems such as leakproofness is poor, cost increases and production efficiency reduces is set brought by refrigerant process duct, have higher quality with
Reliability.
In some embodiments of the invention, the coolant injection mouth is copper pipe, nipple or quick coupling.
In still another aspect of the invention, the invention proposes a kind of air-conditioning systems.According to an embodiment of the invention, the air-conditioning
System includes the outdoor machine of air-conditioner of above-described embodiment.The air-conditioning system has higher by using the outdoor machine of air-conditioner of above-described embodiment
Quality, reliability and production efficiency and lower production cost.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is coolant injection system structure diagram according to an embodiment of the invention；
Fig. 2 is the coolant injection system structure diagram of further embodiment according to the present invention；
Fig. 3 is the coolant injection system structure diagram of another embodiment according to the present invention；
Fig. 4 is the method flow schematic diagram according to an embodiment of the invention that refrigerant is filled into outdoor machine of air-conditioner；
Fig. 5 is the structural schematic diagram of refrigerant pipeline in outdoor machine of air-conditioner condenser in the prior art；
Fig. 6 is the structural schematic diagram of refrigerant pipeline in outdoor machine of air-conditioner condenser according to an embodiment of the invention.
Description of symbols:
100: the outdoor machine of air-conditioner of refrigerant to be filled；200: air-conditioning internal machine is used in test；1: condenser；2: evaporator；3: compression
Machine；4: four-way valve；5: restricting element；6: high pressure valve；7: low pressure valve；8: connecting tube；9: interior machine connector；10: coolant injection mouth；
11: refrigerant pipeline；12: conventional coolant injection process duct；81: high-pressure connecting pipe；82: low-pressure connection tube；83: high pressure vacuumizes,
Fill refrigerant quick coupling；84: low pressure vacuumizes, fills refrigerant quick coupling；85: high-voltage quick joint tooling；86: the fast quick access of low pressure
Head tooling.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", etc. instruction
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, the terms such as " installation ", " connected ", " connection ", " fixation "
It shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or is integral；It can be mechanical connection,
It is also possible to be electrically connected；It can be directly connected, can also can be inside two elements indirectly connected through an intermediary
The interaction relationship of connection or two elements, unless otherwise restricted clearly.For the ordinary skill in the art,
The specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of the present invention, the meaning of " plurality " is at least two, such as two, three etc., unless otherwise clear
It is specific to limit.
Inventor has found in the research to outdoor machine of air-conditioner coolant injection technique, according to the method for the prior art, by cold
Matchmaker's process duct fills refrigerant into outdoor machine of air-conditioner, has the following problems: setting refrigerant process duct directly results in the life of outdoor machine of air-conditioner
Production. art is complicated, increases cost of labor, and production efficiency decline and material cost increase；In addition, refrigerant process duct needs to seal
It is welded on outdoor machine of air-conditioner, leakproofness is difficult to ensure, refrigerant easily leaks.Especially with the air-conditioning system of combustible refrigerant,
Refrigerant process duct needs more protrude using the sealing of Luoghlin ring or ultrasonic bonding, leakage problem.And if cancelled cold
Matchmaker's process duct directly fills refrigerant into outdoor machine of air-conditioner by low pressure valve on outdoor machine of air-conditioner or high pressure valve, and there also have to be following unfavorable
It influences: filling refrigerant from low pressure valve, external machine inner compressor is inhaled, exhaust valve plate has impact, influences compressor reliability, is increased
Compressor fault probability；If filling refrigerant from high pressure valve, due to the drag effect of throttle part in outer machine, it is inevitable to fill efficiency
It reduces, improves filling pressure, necessarily reduce the safety of coolant injection.
In consideration of it, in one aspect of the invention, the system that the invention proposes a kind of to fill refrigerant into outdoor machine of air-conditioner.
According to an embodiment of the invention, the system includes: test air-conditioning internal machine and connecting tube, connecting tube is adapted to test air-conditioning
The outdoor machine of air-conditioner of interior machine and refrigerant to be filled, at least one of connecting tube and test air-conditioning internal machine are upper to have coolant injection mouth.
Coolant injection system according to an embodiment of the present invention, by the outdoor machine of air-conditioner of test air-conditioning internal machine and refrigerant to be filled
It is connected to by connecting tube, and is filled with refrigerant into coolant injection mouth.The test run of later on outdoor machine of air-conditioner, connecting tube and survey
Refrigerant at least one of air-conditioning internal machine on probation is recycled in test between air-conditioning internal machine and outdoor machine of air-conditioner, and refrigerant enters air-conditioning
In outer machine.As a result, in the filling for carrying out completing refrigerant in outer machine while operation test to outdoor machine of air-conditioner.Using of the invention cold
Matchmaker's filling system fills refrigerant into outdoor machine of air-conditioner, does not need that refrigerant process duct is being arranged on outdoor machine of air-conditioner in advance, avoids
The problems such as poor leakproofness brought by refrigerant process duct, cost raising and production efficiency reduce is set；And relative to directly passing through
Outer machine low pressure valve or high pressure valve fill refrigerant, and refrigerant is filled with connecting tube and test air-conditioning internal machine first by system of the invention
At least one in, subsequently through normal outer machine test run, refrigerant is made to enter outer machine, will not externally caused other interior units of machine
Influence or generate safety issue.In addition, in the prior art, after having filled refrigerant into outdoor machine of air-conditioner, then being carried out to it
Operation test not only increases manufacturing field and occupies, in test process is also easy to that refrigerant is caused to lose.And system of the invention is in sky
The filling that refrigerant is completed while adjusting outer machine to be tested can also be reduced while avoiding that refrigerant process duct additionally is arranged
The occupancy of manufacturing field.In summary, coolant injection system of the invention is applied to the refrigerant of outdoor machine of air-conditioner in which can be convenient
Filling improves the manufacture efficiency of outdoor machine of air-conditioner, reduces manufacturing cost, improves product quality and reliability.
It should be noted that " test air-conditioning internal machine " described herein refers in the production of outdoor machine of air-conditioner, it is used for
Test equipment of trial operation is connect and carried out to it with outdoor machine of air-conditioner.
According to an embodiment of the invention, the specific structure of above-mentioned coolant injection mouth is not particularly restricted, as long as can be steady
Surely connect with refrigerant source can specific example according to the present invention, coolant injection mouth can for copper pipe, nipple or quickly
Connector.According to an embodiment of the invention, at least one of above-mentioned copper pipe, nipple and quick coupling are adapted to be coupled to outside
Refrigerant source.When coolant injection mouth uses copper pipe, the process duct for filling refrigerant can be pressed on refrigerant by way of crimping and be filled
On geat；When coolant injection mouth uses nipple, the mode that the process duct for filling refrigerant can be connected through a screw thread is connected
On coolant injection mouth；Coolant injection mouth use quick coupling when, for fill refrigerant process duct can by with quick coupling
Compatible mode is connect with coolant injection mouth.It should be noted that the specific structure of quick coupling is not particularly restricted, it can
With the quick coupling, such as rod-pulling type quick coupling etc. common using this field.
According to an embodiment of the invention, above-mentioned connecting tube includes high-voltage tube and low-voltage tube, fill port may be provided at high-voltage tube
With at least one of low-voltage tube.Specifically, on outdoor machine of air-conditioner include high pressure valve and low pressure valve, high-voltage tube be suitable for even through-inner-machine and
High pressure valve on outer machine, low-voltage tube are suitable for the low pressure valve on even through-inner-machine and outer machine, so that machine and outer machine are connected in realizing.By
This, after filling refrigerant into connecting tube, starts to carry out test run to outdoor machine of air-conditioner, refrigerant is made to exist by high-voltage tube, low-voltage tube
It is recycled between air-conditioning internal machine and outer machine, after there is the refrigerant of aim parameter in outdoor machine of air-conditioner, closes high pressure valve and low pressure valve, make cold
Matchmaker is deposited in outdoor machine of air-conditioner, completes the filling of refrigerant in outer machine.
According to an embodiment of the invention, position of the fill port in connecting tube is not particularly restricted, such as can be set
In the middle position of connecting tube or connecting tube close to the side of air-conditioning internal machine.
According to an embodiment of the invention, coolant injection mouth is not particularly restricted in test with the position on air-conditioning internal machine,
As long as can be introduced in the medium circulation pipeline of air-conditioning internal machine and outer machine i.e. by being filled with refrigerant into fill port, and by refrigerant
It can.
According to some embodiments of the present invention, as shown in Figure 1, coolant injection mouth 10 may be provided at connection refrigerant to be filled
In the connecting tube 8 of outdoor machine of air-conditioner 100 and test air-conditioning internal machine 200.Other embodiments according to the present invention, as shown in Fig. 2,
Coolant injection mouth 10 also can be set on test air-conditioning internal machine 200, such as be arranged between evaporator 2 and interior machine connector 9.
In Fig. 1 and Fig. 2, arrow direction is refrigerant flow direction when filling and recycling refrigerant.
According to an embodiment of the invention, as shown in figure 3, coolant injection mouth can be separately positioned on the sky for connecting refrigerant to be filled
On the high-pressure connecting pipe 81 and low-pressure connection tube 82 for adjusting outer machine 100 and test air-conditioning internal machine 200, it is located at high-pressure connecting pipe 81
Coolant injection mouth is further connected with high pressure and vacuumizes, fills refrigerant quick coupling 83, is located at the coolant injection of low-pressure connection tube 82
Mouth is further connected with low pressure and vacuumizes, fills refrigerant quick coupling 84.And high-pressure connecting pipe 81 passes through high-voltage quick joint tooling
85 are connected with the outdoor machine of air-conditioner 100 of refrigerant to be filled, low-pressure connection tube 82 by high-voltage quick joint tooling 86 with it is to be filled cold
The outdoor machine of air-conditioner 100 of matchmaker is connected.
According to a particular embodiment of the invention, also settable valve in fill port.As a result, empty to connecting tube and test use
After filling refrigerant at least one of machine in adjusting, which can be closed, then carry out subsequent test run.
According to an embodiment of the invention, coolant injection system of the invention may further comprise: vacuum evacuation device.The pumping is true
Empty device is connected with fill port.As a result, before filling refrigerant into outdoor machine of air-conditioner, vacuum evacuation device is advanced with to outdoor machine of air-conditioner
Vacuumize process is carried out, can further improve the filling efficiency of refrigerant.In some embodiments, vacuum evacuation device can simultaneously with
Two or more fill ports are connected, and vacuum evacuation device vacuumizes two or more fill ports simultaneously as a result, vacuumize effect
Rate is higher, effect is more preferable.
In addition, in the prior art, after needing first to vacuumize outdoor machine of air-conditioner, fill refrigerant, then will fill cold
The outdoor machine of air-conditioner of matchmaker, which is sent, carries out test run into operation room, is easy to outer machine occurs during outer machine is sent to operation room cold
Matchmaker's leakage loss.And technical solution of the present invention vacuumizes again after sending machine outside sky to operation room, and is being surveyed
The filling that refrigerant is completed while trial operation, it is possible thereby to reduce the occupancy of manufacturing field, and effectively avoids coolant leakage, air-conditioning
The problems such as outer machine vacuum error.
In another aspect of this invention, the invention proposes a kind of coolant injection systems using above-described embodiment to air-conditioning
The method of refrigerant is filled in outer machine.According to an embodiment of the invention, this method comprises: (1) is by the outdoor machine of air-conditioner of refrigerant to be filled
It is connect with test with air-conditioning internal machine by connecting tube；(2) cold at least one connecting tube and the test air-conditioning internal machine
Refrigerant is filled in matchmaker's fill port；(3) test run is carried out to outdoor machine of air-conditioner, to make refrigerant enter the outdoor machine of air-conditioner.
The method of filling refrigerant according to an embodiment of the present invention, will be outside the air-conditioning of test air-conditioning internal machine and refrigerant to be filled
Machine is connected to by connecting tube, and is filled with refrigerant into the coolant injection mouth of connecting tube and test at least one of air-conditioning internal machine.
The test run of later on outdoor machine of air-conditioner, refrigerant at least one of connecting tube and test air-conditioning internal machine is in test with empty
It is recycled between machine and outdoor machine of air-conditioner in adjusting, refrigerant enters in outdoor machine of air-conditioner.The same of operation test is being carried out to outdoor machine of air-conditioner as a result,
When complete the filling of refrigerant in outer machine.Refrigerant is filled into outdoor machine of air-conditioner using method of the invention, is not needed in advance in sky
It adjusts and refrigerant process duct is set on outer machine, avoid poor leakproofness brought by setting refrigerant process duct, cost raising and production effect
The problems such as rate reduces；And relative to outer machine low pressure valve or high pressure valve filling refrigerant is directly passed through, method of the invention first will be cold
Matchmaker is filled at least one of connecting tube and test air-conditioning internal machine, subsequently through normal outer machine test run, make refrigerant into
Enter outer machine, externally will not impact or generate safety issue by other interior units of machine.In addition, in the prior art, to sky
It adjusts after having filled refrigerant in outer machine, then operation test is carried out to it, not only increase manufacturing field and occupy, be also easy in test process
Refrigerant is caused to lose.And method of the invention completes the filling of refrigerant while outdoor machine of air-conditioner is tested, and is avoiding additionally
While refrigerant process duct is set, the occupancy of manufacturing field can also be reduced.In summary, the side of filling refrigerant of the invention
Method is applied to the coolant injection of outdoor machine of air-conditioner in which can be convenient, and improves the manufacture efficiency of outdoor machine of air-conditioner, reduces manufacturing cost, improves
Product quality and reliability.
The method of filling refrigerant according to an embodiment of the present invention is described in detail further below:
According to an embodiment of the invention, carrying out vacuumize process to outdoor machine of air-conditioner in advance before step (2).As a result, may be used
Further increase the filling efficiency of refrigerant.
According to an embodiment of the invention, vacuum evacuation device is connected to coolant injection mouth, to carry out vacuumize process.?
In some embodiments, vacuum evacuation device can be connected with two or more coolant injection mouths simultaneously, and vacuum evacuation device can be right as a result,
Two or more fill ports are vacuumized simultaneously, vacuumize that more efficient, effect is more preferable.
According to an embodiment of the invention, controlling vacuum degree in vacuumize process is 0.01~100Pa.It as a result, can be further
The filling efficiency of refrigerant is improved, and further increases the reliability of outdoor machine of air-conditioner product.
According to an embodiment of the invention, the filling pressure of refrigerant is 0.01~100MPa in step (2).Of the invention
Method by fill port to connecting tube and test with filling refrigerant at least one of air-conditioning internal machine, rather than directly pass through air-conditioning
High pressure valve or low pressure valve on outer machine are filled, and can impact or generate peace by other units in not external machine as a result,
Under the premise of full property problem, using higher coolant injection pressure, the filling efficiency of refrigerant is further increased, and further increase
The safety of production.
It should be noted that it is cold to be equally applicable to the filling described previously for feature and advantage described in coolant injection system
The method of matchmaker, this is no longer going to repeat them.
In another aspect of the invention, the invention proposes a kind of outdoor machine of air-conditioner.According to an embodiment of the invention, the air-conditioning
Outer machine includes high pressure valve, low pressure valve and connecting tube, and the connecting tube is suitable for for the outdoor machine of air-conditioner connecting with air-conditioning internal machine, described
At least one of high pressure valve and the low pressure valve are connected with the connecting tube, have coolant injection mouth in the connecting tube.By
This, the outdoor machine of air-conditioner can by the coolant injection system of connecting tube and above-described embodiment for being connect with outdoor machine of air-conditioner or
The method of refrigerant is filled to fill refrigerant.In turn, condenser can use closed refrigerant pipeline in the outdoor machine of air-conditioner, avoid
The problems such as leakproofness is poor, cost increases and production efficiency reduces is set brought by refrigerant process duct, have higher quality with
Reliability.In some embodiments of the invention, above-mentioned coolant injection mouth can be copper pipe, nipple or quick coupling.
Above-mentioned " closing " shall be understood in a broad sense, it will be appreciated to those of skill in the art that the refrigerant pipeline in condenser
Including for inlet and outlet necessary to connecting with outdoor machine of air-conditioner other component, " closed refrigerant pipeline " refers to refrigerant pipeline
In addition to above-mentioned necessary inlet and outlet, the opening for filling refrigerant is no longer additionally set.It refers to Figures 5 and 6, the prior art
In, need to be arranged on the refrigerant pipeline 11 of outdoor machine of air-conditioner condenser coolant injection process duct 12, and pass through the coolant injection work
Skill pipe 12 fills refrigerant into refrigerant pipeline 11.And the corresponding site on the refrigerant pipeline 11 of outdoor machine of air-conditioner condenser of the invention
Closing, and the method for coolant injection system or filling refrigerant through the foregoing embodiment carries out coolant injection, to effectively keep away
Exempt from that poor leakproofness brought by coolant injection process duct 12, cost raising and production efficiency reduction is arranged on refrigerant pipeline 11
The problems such as.Based on this, the present invention also proposes a kind of outdoor machine of air-conditioner, has on condenser used by the outdoor machine of air-conditioner as previously described
Closed refrigerant pipeline.
It should be noted that same described previously for feature and advantage described in coolant injection system and the method for filling refrigerant
Sample is suitable for the outdoor machine of air-conditioner, and this is no longer going to repeat them.
In still another aspect of the invention, the invention proposes a kind of air-conditioning systems.According to an embodiment of the invention, the air-conditioning
System includes the outdoor machine of air-conditioner of above-described embodiment.The air-conditioning system has higher by using the outdoor machine of air-conditioner of above-described embodiment
Quality, reliability and production efficiency and lower production cost.
It should be noted that described previously for spy described in coolant injection system, the method for filling refrigerant and outdoor machine of air-conditioner
Advantage of seeking peace is equally applicable to the air-conditioning system, and this is no longer going to repeat them.
Below with reference to specific embodiment, present invention is described, it should be noted that these embodiments are only to describe
Property, without limiting the invention in any way.
Embodiment 1
With reference to Fig. 4, refrigerant is filled into outdoor machine of air-conditioner according to the following steps:
Outdoor machine of air-conditioner cancels coolant injection process duct, and model machine does not vacuumize and fill refrigerant before entering operation room, into
Enter after running room, is connect with test with air-conditioning internal machine by connecting tube in operation room, and draw two or more in connecting tube
A coolant injection mouth is vacuumized simultaneously by two or more coolant injection mouths, to shorten the pumpdown time, exhausts vacuum
Refrigerant is filled in backward coolant injection mouth, then carries out trial operation detection, to make refrigerant enter outdoor machine of air-conditioner, is completed outside air-conditioning
The filling of refrigerant in machine, outdoor machine of air-conditioner carry out next process flow secondary refrigerant leakage detection and subsequent process flow.
Embodiment 2
With reference to Fig. 4, refrigerant is filled into outdoor machine of air-conditioner according to the following steps:
Outdoor machine of air-conditioner cancels coolant injection process duct, and model machine does not vacuumize and fill refrigerant before entering operation room, into
Enter after running room, connect with test with air-conditioning internal machine by connecting tube in operation room, and in test extraction two on interior machine
Or multiple coolant injection mouths, it is vacuumized by two or more coolant injection mouths, to shorten the pumpdown time, is exhausted simultaneously
Refrigerant is filled after vacuum into coolant injection mouth, then carries out trial operation detection, to make refrigerant enter outdoor machine of air-conditioner, is completed empty
The filling of refrigerant in outer machine is adjusted, outdoor machine of air-conditioner carries out next process flow secondary refrigerant leakage detection and subsequent process flow.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (13)
1. a kind of coolant injection system characterized by comprising
Air-conditioning internal machine is used in test；
Connecting tube, the connecting tube are adapted to the outdoor machine of air-conditioner of the test air-conditioning internal machine and refrigerant to be filled, the company
At least one of adapter tube and the test air-conditioning internal machine are upper to have coolant injection mouth.
2. coolant injection system according to claim 1, which is characterized in that the coolant injection mouth is copper pipe, screw thread connects
Head or quick coupling.
3. coolant injection system according to claim 2, which is characterized in that the copper pipe, the nipple and described
At least one of quick coupling is adapted to be coupled to external refrigerant source.
4. coolant injection system according to claim 1, which is characterized in that the connecting tube includes high-voltage tube and low pressure
Pipe, the fill port are arranged at least one of the high-voltage tube and the low-voltage tube.
5. coolant injection system according to any one of claims 1 to 4, which is characterized in that further comprise:
Vacuum evacuation device, the vacuum evacuation device are connected with the fill port.
6. a kind of method that refrigerant is filled into outdoor machine of air-conditioner using the described in any item coolant injection systems of Claims 1 to 55,
It is characterised by comprising:
(1) outdoor machine of air-conditioner of refrigerant to be filled and test are connected with air-conditioning internal machine by connecting tube；
(2) Xiang Suoshu connecting tube and the test fill refrigerant in the coolant injection mouth at least one air-conditioning internal machine；
(3) test run is carried out to the outdoor machine of air-conditioner, to make the refrigerant enter the outdoor machine of air-conditioner.
7. according to the method described in claim 6, it is characterized in that, being carried out in advance to the outdoor machine of air-conditioner before step (2)
Vacuumize process.
8. the method according to the description of claim 7 is characterized in that vacuum evacuation device is connected to the fill port, so as into
The row vacuumize process.
9. according to the described in any item methods of claim 6~8, which is characterized in that control vacuum degree in the vacuumize process
For 0.01~100Pa.
10. according to the described in any item methods of claim 6~8, which is characterized in that in step (2), the filling of the refrigerant
Pressure is 0.01~100MPa.
11. a kind of outdoor machine of air-conditioner characterized by comprising high pressure valve, low pressure valve and connecting tube, the connecting tube are suitable for institute
Outdoor machine of air-conditioner to be stated to connect with air-conditioning internal machine, at least one of the high pressure valve and the low pressure valve are connected with the connecting tube,
There is coolant injection mouth in the connecting tube.
12. outdoor machine of air-conditioner according to claim 11, which is characterized in that the coolant injection mouth is copper pipe, nipple
Or quick coupling.
13. a kind of air-conditioning system characterized by comprising outdoor machine of air-conditioner described in claim 11 or 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811523033.9A CN109631434B (en) | 2018-12-13 | 2018-12-13 | System and method for filling refrigerant into air conditioner outdoor unit, air conditioner outdoor unit and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811523033.9A CN109631434B (en) | 2018-12-13 | 2018-12-13 | System and method for filling refrigerant into air conditioner outdoor unit, air conditioner outdoor unit and air conditioning system |
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| Publication Number | Publication Date |
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| CN109631434A true CN109631434A (en) | 2019-04-16 |
| CN109631434B CN109631434B (en) | 2021-08-20 |
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| CN109631434B (en) | 2021-08-20 |
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