CN209246462U - Motor cooling circuit, refrigeration system and the air-conditioning of compressor - Google Patents
Motor cooling circuit, refrigeration system and the air-conditioning of compressor Download PDFInfo
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- CN209246462U CN209246462U CN201822206320.9U CN201822206320U CN209246462U CN 209246462 U CN209246462 U CN 209246462U CN 201822206320 U CN201822206320 U CN 201822206320U CN 209246462 U CN209246462 U CN 209246462U
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- motor
- cooling
- refrigerant
- cooling line
- compressor
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Abstract
The utility model relates to motor cooling circuit, refrigeration system and the air-conditionings of a kind of compressor.Wherein, the motor cooling circuit of compressor includes: the motor of the compressor；Refrigerating circulation where the compressor；Cooling line is connected to the refrigerating circulation and the motor, for guiding the part refrigerant in the refrigerating circulation into the motor, with the cooling motor；And plenum member, it is set to the cooling line, for adjusting the pressure of the refrigerant in the cooling line.The utility model is variable by the refrigerant pressure for realizing cooling motor, and then adjusts the cold medium flux for cooling down motor, to adapt under different operating conditions, required coolant quantity.
Description
Technical field
The utility model relates to the motors of compressor field more particularly to a kind of adjustable compressor of coolant quantity to cool back
Road, refrigeration system and air-conditioning.
Background technique
The motor of centrifugal compressor is a kind of high power, high revolving speed motor special, rated power increase with cooling capacity section and
Increase, the centrifugal motor power in industry for refrigeration has been up to 1300kW at present.But since motor is there are copper loss and iron loss,
Its electric efficiency is unable to reach 100%, and the electric efficiency of loss is converted into heat, and power of motor is bigger, and calorific value is also bigger.
The heat of spilling by the output power for reducing motor, it is serious when will lead to rotor demagnetization, or even burn motor.Therefore motor cooling is
Guarantee the necessary means of centrifuge stable operation.
Presently relevant technology has the following problems the motor cooling of compressor:
1) before centrifuge starting, system components pressure is in equilibrium state, so not building after centrifuge starting in pressure difference
It erects before coming, refrigerant needed for cooling motor can not be obtained directly from the refrigerant containers such as condenser or evaporator or flash evaporation；
2) when switching the operating conditions such as low voltage difference, system pressure difference reduces the fluctuation of bring motor coolant liquid, and it is cold to may cause motor
But liquid is insufficient；
3) when switching the operating conditions such as High Pressure Difference, to improve pressure ratio, compressor load is promoted, and power of motor increases at this time, fever
Amount also increases, and required coolant liquid also needs to increase.
Utility model content
One of purpose of the utility model is the motor cooling circuit for proposing a kind of adjustable compressor of coolant quantity, system
Cooling system and air-conditioning, for alleviating the problem of motor cooling circuit pressure difference not can guarantee.
Some embodiments of the utility model provides a kind of motor cooling circuit of compressor comprising: the compression
The motor of machine；Refrigerating circulation where the compressor；Cooling line, with the refrigerating circulation and the motor
Connection, for guiding the part refrigerant in the refrigerating circulation into the motor, with the cooling motor；And pressurization
Part is set to the cooling line, for adjusting the pressure of the refrigerant in the cooling line.
In some embodiments, the cooling line includes the first cooling line and the second cooling line in parallel；It is described
Refrigerant in first cooling line and second cooling line derives from the refrigerating circulation；First cooling line
It is changeable with second cooling line, refrigerant is provided to the motor to select one；It is cooling that the plenum member is set to described first
One of pipeline and second cooling line, the pressure of the refrigerant where the plenum member is used to adjust it in pipeline.
In some embodiments, the cooling line includes: that refrigerant draws pipeline, first end and the refrigeration cycle pipe
Road connection；Second end is connected to first cooling line and second cooling line.
In some embodiments, the motor cooling circuit of compressor includes: three-way control valve, first end and the refrigerant
Draw piping connection；Second end is connect with first cooling line；Third end is connect with second cooling line.
In some embodiments, the cooling line includes: interflow pipeline, first end and first cooling line with
And the second cooling line connection；Second end is connected to the motor, for providing refrigerant for the motor.
In some embodiments, the motor cooling circuit of compressor includes check valve, the interflow pipeline is set to, for making
Refrigerant flows to the motor.
In some embodiments, the motor cooling circuit of compressor includes: that refrigerant backflows pipeline, first end and the electricity
Machine connection；Second end is connected to the refrigerating circulation；The refrigerant backflows pipeline for that will discharge heat in the motor
Refrigerant after amount, the cooling motor is led back to the refrigerating circulation.
In some embodiments, the refrigerating circulation includes condenser；The cooling line and the condenser
Output end connection.
In some embodiments, the refrigerating circulation includes evaporator or flash evaporation；The motor cooling circuit is also
It include: that refrigerant backflows pipeline, first end is connected to the motor；The input terminal of second end and the evaporator or flash evaporation connects
It is logical.
In some embodiments, the motor cooling circuit of compressor includes: first pressure detecting element, is flowed into for detecting
Refrigerant pressure P1 before the motor；And second pressure detecting element, for detecting from the refrigerant pressure after motor outflow
Power P2；The plenum member is used to adjust the pressure of the refrigerant in the cooling line, so that △ P is not less than preset value；Wherein, △
P=P1-P2.
In some embodiments, the cooling line is equipped with motor-driven valve.
In some embodiments, the cooling line is equipped with filter.
In some embodiments, the plenum member includes freq uency conversion supercharging pump.
Some embodiments of the utility model provides a kind of refrigeration system comprising the motor in above-described embodiment is cooling
Circuit.
Some embodiments of the utility model provides a kind of air-conditioning comprising the refrigeration system in above-described embodiment.
Based on the above-mentioned technical proposal, the utility model at least has the advantages that
In some embodiments, the motor cooling circuit of compressor includes cooling line and plenum member, cooling line and system
SAPMAC method pipeline is connected to motor, for guiding the part refrigerant in refrigerating circulation into motor, to cool down motor；Plenum member
Realize that the refrigerant pressure of cooling motor is variable, and then adjust for adjusting the pressure of the refrigerant in cooling line set on cooling line
It saves in the cold medium flux of cooling motor, to adapt to coolant quantity required under different operating conditions.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the improper of the utility model
It limits.In the accompanying drawings:
Fig. 1 is the schematic diagram of the motor cooling circuit for the compressor that some embodiments of the utility model provide.
Numbering in the drawing explanation:
1- compressor；2- motor；The first cooling line of 3-；The second cooling line of 4-；5- plenum member；6- refrigerant fairlead
Road；7- three-way control valve；8- collaborates pipeline；9- check valve；10- refrigerant backflows pipeline；11- condenser；12- evaporator or shwoot
Device；13- first pressure detecting element；14- second pressure detecting element；15- motor-driven valve；16- filter.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, the technical solution in embodiment is carried out it is clear, complete
Ground description.Obviously, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.
Based on the embodiments of the present invention, institute obtained by those of ordinary skill in the art without making creative efforts
There are other embodiments, fall within the protection scope of the utility model.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this is practical
The limitation of novel protected range.
As shown in Figure 1, being the schematic diagram of the motor cooling circuit for the compressor that some embodiments provide.
In some embodiments, the motor cooling circuit of compressor includes the refrigerating circulation where compressor 1.Refrigeration
Part refrigerant in circulation line is used for as the cooling of motor 2.
In some embodiments, refrigerating circulation includes compressor 1, condenser 11 and evaporator or flash evaporation 12.
Further, compressor 1 includes centrifugal compressor 1.
In some embodiments, the motor cooling circuit of compressor includes the motor 2 of compressor 1.
In some embodiments, the motor cooling circuit of compressor includes cooling line, cooling line and refrigeration cycle pipe
Road is connected to motor 2, for guiding the part refrigerant in refrigerating circulation into motor 2, to cool down motor 2.
In some embodiments, the motor cooling circuit of compressor includes plenum member 5, and plenum member 5 is set to cooling line, is used
In the pressure for adjusting the refrigerant in cooling line, realize that the refrigerant pressure of cooling motor 2 is variable, and then adjust for cooling down motor
2 cold medium flux, to adapt to coolant quantity required under different operating conditions.
In some embodiments, cooling line includes the first cooling line 3 and the second cooling line 4 in parallel.First is cold
But the refrigerant in pipeline 3 and the second cooling line 4 derives from refrigerating circulation.
Since pressure difference is to drive the guarantee flowed in circulation line of refrigerant, and pressure difference is too small is used to reduction cool down motor
2 coolant quantity is easy to cause motor 2 to overheat.Therefore, in some embodiments, the motor cooling circuit of compressor includes pressurization
Part 5, plenum member 5 are set to one of the first cooling line 3 and the second cooling line 4.
The pressure of refrigerant where plenum member 5 is used to adjust it in pipeline realizes that the refrigerant pressure of cooling motor 2 is variable,
The cold medium flux for cooling down motor 2 is adjusted, in turn to adapt to coolant quantity required under different operating conditions.
Optionally, plenum member 5 is set to the second cooling line 4, and plenum member 5 is used to adjust the refrigerant in the second cooling line 4
Pressure.
In some embodiments, the first cooling line 3 and the second cooling line 4 are changeable, are provided with to select one to motor 2 cold
Matchmaker.Pipeline for providing from refrigerant to motor 2 is variable, can be realized the controllability of 2 coolant liquid of motor, and it is long to be conducive to realization system
The energy-saving of phase operation.
In some embodiments, cooling line includes the first cooling line 3 and the second cooling line 4 in parallel, and first is cold
But pipeline 3 and the second cooling line 4 are changeable, provide refrigerant to motor 2 to select one；Plenum member 5 is set to 3 He of the first cooling line
One of second cooling line 4, the pressure of the refrigerant where plenum member 5 is used to adjust it in pipeline realize cooling motor 2
Refrigerant pressure it is variable, and then adjust the cold medium flux for cooling down motor 2, to adapt under different operating conditions, required coolant quantity,
Alleviate the problem of motor cooling circuit pressure difference not can guarantee.
In some embodiments, cooling line includes that refrigerant draws pipeline 6.The first end and refrigeration of refrigerant extraction pipeline 6
Circulation line connection；The second end that refrigerant draws pipeline 6 is connected to the first cooling line 3 and the second cooling line 4.
In some embodiments, the motor cooling circuit of compressor includes three-way control valve 7.The first of three-way control valve 7
Pipeline 6 is drawn with refrigerant and is connect in end；The second end of three-way control valve 7 is connect with the first cooling line 3；The of three-way control valve 7
Three ends are connect with the second cooling line 4.
By the way that three-way control valve 7 is arranged, the switching of the first cooling line 3 and the second cooling line 4 is realized.
Optionally, after system pressure difference is stablized, the pipeline of no plenum member 5, plenum member 5 when reducing longtime running are switched to
Operation, be conducive to energy conservation and reduce failure.
It is of course also possible to it is not provided with three-way control valve 7, but on the first cooling line 3 and the second cooling line 4 respectively
Switch valve is set, to realize the switching of the first cooling line 3 and the second cooling line 4.
In some embodiments, cooling line includes interflow pipeline 8, collaborates the first end and the first cooling line 3 of pipeline 8
And second cooling line 4 be connected to；The second end of interflow pipeline 8 is connected to motor 2, for providing refrigerant for motor 2.
In some embodiments, the motor cooling circuit of compressor includes check valve 9, and check valve 9 is set to interflow pipeline 8,
For making refrigerant flow direction motor 2.
Check valve 9 mainly plays unidirectional constant current, for preventing the refrigerant adverse current for cooling down motor 2, motor 2 is caused to lack
Coolant liquid, and cause to be arranged on the first cooling line 3 and the second cooling line 4 component (such as: motor-driven valve 15, filtering
Device 16 or plenum member 5 etc.) impact.
In some embodiments, the motor cooling circuit of compressor includes that refrigerant backflows pipeline 10.Refrigerant backflows pipeline 10
First end be connected to motor 2；The backflow second end of pipeline 10 of refrigerant is connected to refrigerating circulation.
Refrigerant backflows pipeline 10 for leading back the refrigerant after release heat, cooling motor 2 in motor 2 to refrigeration cycle
Pipeline.
In some embodiments, refrigerating circulation includes condenser 11.The output end of cooling line and condenser 11 connects
It is logical.
In some embodiments, the first cooling line 3 and the second cooling line 4 are connected to the output end of condenser 11.
Since the refrigerant pressure of the output end of condenser 11 is big, refrigerant is drawn from the output end of condenser 11, is conducive to realize
The flowing of refrigerant in motor cooling circuit.Certainly, it is not limited to draw refrigerant from the output end of condenser 11.
In some embodiments, refrigerating circulation includes evaporator or flash evaporation 12.Refrigerant backflows the first of pipeline 10
End is connected to motor 2；The backflow second end of pipeline 10 of refrigerant is connected to the input terminal of evaporator or flash evaporation 12.
In some embodiments, highest cold from pressure to guarantee that the amount for the coolant liquid (refrigerant) for being supplied to motor 2 is enough
Condenser 11 is taken in the refrigerant of cooling motor 2, and is cooled down the refrigerant after motor 2 and returned to evaporator or flash evaporation 12, keeps motor cold
But circuit has certain pressure difference, realizes that self is recycled.
In some embodiments, the motor cooling circuit of compressor includes first pressure detecting element 13, first pressure inspection
Element 13 is surveyed to be used to detect the refrigerant pressure P1 before flowing into motor 2.
Optionally, first pressure detecting element 13 is set to interflow pipeline 8.
In some embodiments, the motor cooling circuit of compressor includes second pressure detecting element 14, second pressure inspection
Element 14 is surveyed to be used to detect from the refrigerant pressure P2 after the outflow of motor 2.
Optionally, second pressure detecting element 14 is set to the input terminal of evaporator or flash evaporation 12.
In some embodiments, the pressure of the refrigerant where plenum member 5 is used to adjust it in pipeline, so that △ P is not less than
Preset value；Wherein, △ P=P2-P1.
Optionally, to guarantee cooling effect, △ P is not less than 100kPa.
In some embodiments, cooling line is equipped with motor-driven valve 15.
In some embodiments, the first cooling line 3 is equipped with motor-driven valve 15 or throttle valve.
In some embodiments, it since the refrigerant that the output end of condenser 11 exports is high temperature and pressure state, is unable to reach cold
But the effect of motor, therefore the refrigerant for cooling down motor 2 first passes through motor-driven valve 15, adjusts via diameter by motor-driven valve 15, from
And reach throttling purpose, obtain the refrigerant of low-pressure low-temperature, and then the motor 2 of cooling compressor 1.Refrigerant after cooling motor 2 without
By evaporator or flash evaporation 12 is returned to, compressor 1 is finally come together in, refrigerant is after 1 adherence pressure of compressor, flow direction condensation again
Device 11 completes the refrigerant circulation for cooling down motor 2.
In some embodiments, the second cooling line 4 is equipped with motor-driven valve 15 or throttle valve.
In some embodiments, cooling line is equipped with filter 16.
In some embodiments, the first cooling line 3 is equipped with filter 16.
In some embodiments, the second cooling line 4 is equipped with filter 16.
Optionally, filter 16 is made of high duty metal silk screen, can be against refrigerant corrosion and impacting with high pressure.To protect
Filter effect is demonstrate,proved, filtering accuracy is preferably not less than 3um.
In some embodiments, plenum member 5 is pumped including freq uency conversion supercharging.
In some embodiments, freq uency conversion supercharging pump is mainly used for promoting the pressure of the refrigerant for cooling down motor 2, makes its height
In the pressure of evaporator or the input terminal of flash evaporation 12, and then realize the circulation of motor cooling circuit.
Further, freq uency conversion supercharging pump can also be achieved frequency control, thus obtain different pressures for cooling down motor 2
Refrigerant, to adapt to different duty requirements.
The frequency control of freq uency conversion supercharging pump passes through first pressure detecting element 13 and the joint control of second pressure detecting element 14
System.
Some embodiments provide a kind of motor cooling means of compressor, use above-mentioned motor cooling circuit real
It is existing.
In some embodiments, motor cooling means include:
In the case where refrigerating circulation is in rigid starting state:
Switch to the pipeline equipped with plenum member 5；
Adjust the refrigerant pressure where it in pipeline by plenum member 5, the refrigerant pressure P1 before making to flow into motor 2 with from electricity
The pressure difference △ P of refrigerant pressure P2 after the outflow of machine 2 meets preset value.Wherein, △ P=P1-P2.
When above-described embodiment is for solving booting, motor cooling circuit pressure difference can not be obtained caused by not setting up for cold
But the refrigerant of motor 2 and the biggish refrigerant bring pressure ratio of specific volume are promoted difficult, influence the cooling problem of motor 2.
In some embodiments, motor cooling means include:
In the state that refrigerating circulation is in irregular operation:
Switch to the pipeline equipped with plenum member 5；
Adjust the refrigerant pressure where it in pipeline by plenum member 5, the refrigerant pressure P1 before making to flow into motor 2 with from electricity
The pressure difference △ P of refrigerant pressure P2 after the outflow of machine 2 meets preset value.Wherein, △ P=P1-P2.
Above-described embodiment is for solving in refrigerating circulation operational process, the cooling fluid wave of motor 2 caused by pressure-difference fluctuation
Dynamic problem.
In some embodiments, motor cooling means include:
It is in the state of stable operation in refrigerating circulation, i.e. refrigerant pressure P1 before inflow motor 2 is flowed with from motor 2
The pressure difference △ P of refrigerant pressure P2 after out meets in the state of preset value:
Switch to the pipeline of no plenum member 5.
In some embodiments, the second cooling line 4 is equipped with plenum member 5.
Before booting or system condition changes, and when pressure difference △ P being caused to be unsatisfactory for preset value, is switched by three-way control valve 7
To the second cooling line 4, the first cooling line 3 is closed at this time, and is pumped and done work by freq uency conversion supercharging, and pressure difference △ P is improved.
And after system stable operation, the pressure of 11 output end of condenser is greater than the input of evaporator or flash evaporation 12 at this time
The pressure at end, and motor-driven valve 15 is combined to adjust, effective pressure difference △ P is formed, it is cooling to switch to first by three-way control valve 7 at this time
Pipeline 3, the second cooling line 4 is closed at this time, and when reducing longtime running, energy conservation is realized in the operation of freq uency conversion supercharging pump.
In some embodiments, it includes refrigerating capacity needed for user terminal that refrigerating circulation, which is in the state of irregular operation,
The state of the decline of refrigerating capacity needed for the state or user terminal of promotion.
In some embodiments, in the state that the refrigerating capacity needed for user terminal is promoted: improving its place by plenum member 5
Refrigerant pressure in pipeline.
When the refrigerating capacity needed for user terminal is promoted, the power of motor 2 increases, and the calorific value of motor 2 also increases, can lead at this time
The ability for improving plenum member 5 is crossed, the flow for cooling down the refrigerant of motor 2 is promoted, and then provides more refrigerants with cooling electricity
Machine 2.
In some embodiments, it in the state that refrigerating capacity needed for user terminal declines, is managed where reducing it by plenum member 5
Refrigerant pressure in road.
When the refrigerating capacity needed for user terminal declines, the power of motor 2 reduces, and the calorific value of motor 2 also reduces, at this time if
Refrigerant for cooling down motor 2 is excessive, then 2 temperature of motor can be made too low, cause dew condensation phenomenon, therefore, can be pressurized by reducing
The ability of part 5 reduces the flow for cooling down the refrigerant of motor 2, to reduce cooling effect.
Some embodiments provide a kind of refrigeration systems comprising the motor cooling circuit in above-described embodiment.
Some embodiments provide a kind of air-conditionings comprising the refrigeration system in above-described embodiment.
In the description of the present invention, it should be understood that being limited using the words such as " first ", " second ", " third "
Determine components, it is only for convenient for distinguishing to above-mentioned parts, there is no Stated otherwise such as, there is no special for above-mentioned word
Meaning, therefore should not be understood as the limitation to scope of protection of the utility model.
Finally it should be noted that: above embodiments are only to illustrate the technical solution of the utility model rather than limit it
System；Although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should
Understand: specific implementation of the utility model can still be modified or is equally replaced to some technical characteristics
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (15)
1. a kind of motor cooling circuit of compressor characterized by comprising
The motor (2) of the compressor (1)；
Refrigerating circulation where the compressor (1)；
Cooling line is connected to the refrigerating circulation and the motor (2), for will be in the refrigerating circulation
Part refrigerant guides the motor (2) into, with the cooling motor (2)；And
Plenum member (5) is set to the cooling line, for adjusting the pressure of the refrigerant in the cooling line.
2. the motor cooling circuit of compressor as described in claim 1, which is characterized in that the cooling line includes in parallel
First cooling line (3) and the second cooling line (4)；In first cooling line (3) and second cooling line (4)
Refrigerant derives from the refrigerating circulation；First cooling line (3) and second cooling line (4) are changeable, with
It selects one and provides refrigerant to the motor (2)；The plenum member (5) is set to first cooling line (3) and second cooling
One of pipeline (4), the pressure of the refrigerant where the plenum member (5) is used to adjust it in pipeline.
3. the motor cooling circuit of compressor as claimed in claim 2, which is characterized in that the cooling line includes:
Refrigerant draws pipeline (6), and first end is connected to the refrigerating circulation；Second end and first cooling line
(3) and second cooling line (4) is connected to.
4. the motor cooling circuit of compressor as claimed in claim 3 characterized by comprising
Three-way control valve (7), first end are drawn pipeline (6) with the refrigerant and are connect；Second end and first cooling line
(3) it connects；Third end is connect with second cooling line (4).
5. the motor cooling circuit of compressor as claimed in claim 2, which is characterized in that the cooling line includes:
Collaborate pipeline (8), first end is connected to first cooling line (3) and second cooling line (4)；Second
End is connected to the motor (2), for providing refrigerant for the motor (2).
6. the motor cooling circuit of compressor as claimed in claim 5, which is characterized in that including check valve (9), be set to described
Collaborate pipeline (8), for making refrigerant flow to the motor (2).
7. the motor cooling circuit of compressor as described in claim 1 characterized by comprising
Refrigerant backflows pipeline (10), and first end is connected to the motor (2)；Second end is connected to the refrigerating circulation；
The refrigerant backflows pipeline (10) for leading back the refrigerant after release heat, the cooling motor (2) in the motor (2)
To the refrigerating circulation.
8. the motor cooling circuit of compressor as described in claim 1, which is characterized in that the refrigerating circulation includes cold
Condenser (11)；
The cooling line is connected to the output end of the condenser (11).
9. the motor cooling circuit of compressor as claimed in claim 1 or 8, which is characterized in that the refrigerating circulation packet
Include evaporator or flash evaporation (12)；
The motor cooling circuit further include:
Refrigerant backflows pipeline (10), and first end is connected to the motor (2)；Second end and the evaporator or flash evaporation (12)
Input terminal connection.
10. the motor cooling circuit of compressor as described in claim 1 characterized by comprising
First pressure detecting element (13), for detecting the refrigerant pressure P1 before flowing into the motor (2)；And
Second pressure detecting element (14), for detecting from the refrigerant pressure P2 after the motor (2) outflow；
The plenum member (5) is used to adjust the pressure of the refrigerant in the cooling line, so that △ P is not less than preset value；Wherein,
△ P=P1-P2.
11. the motor cooling circuit of compressor as described in claim 1, which is characterized in that the cooling line is equipped with electricity
Dynamic valve (15).
12. the motor cooling circuit of compressor as described in claim 1, which is characterized in that the cooling line was equipped with
Filter (16).
13. the motor cooling circuit of compressor as described in claim 1, which is characterized in that the plenum member (5) includes frequency conversion
Booster pump.
14. a kind of refrigeration system, which is characterized in that including the described in any item motor cooling circuits of such as claim 1~13.
15. a kind of air-conditioning, which is characterized in that including refrigeration system as claimed in claim 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822206320.9U CN209246462U (en) | 2018-12-26 | 2018-12-26 | Motor cooling circuit, refrigeration system and the air-conditioning of compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822206320.9U CN209246462U (en) | 2018-12-26 | 2018-12-26 | Motor cooling circuit, refrigeration system and the air-conditioning of compressor |
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| CN209246462U true CN209246462U (en) | 2019-08-13 |
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| CN201822206320.9U Active CN209246462U (en) | 2018-12-26 | 2018-12-26 | Motor cooling circuit, refrigeration system and the air-conditioning of compressor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365897A (en) * | 2018-12-26 | 2020-07-03 | 珠海格力电器股份有限公司 | Motor cooling loop of compressor, cooling method, refrigerating system and air conditioner |
| WO2021114741A1 (en) * | 2019-12-11 | 2021-06-17 | 珠海格力电器股份有限公司 | Air conditioning system |
-
2018
- 2018-12-26 CN CN201822206320.9U patent/CN209246462U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365897A (en) * | 2018-12-26 | 2020-07-03 | 珠海格力电器股份有限公司 | Motor cooling loop of compressor, cooling method, refrigerating system and air conditioner |
| WO2021114741A1 (en) * | 2019-12-11 | 2021-06-17 | 珠海格力电器股份有限公司 | Air conditioning system |
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