CN205407496U - Permanent magnet synchronous motor assembly, compressor with permanent magnet synchronous motor assembly and air conditioner with permanent magnet synchronous motor assembly - Google Patents
Permanent magnet synchronous motor assembly, compressor with permanent magnet synchronous motor assembly and air conditioner with permanent magnet synchronous motor assembly Download PDFInfo
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- CN205407496U CN205407496U CN201620157249.8U CN201620157249U CN205407496U CN 205407496 U CN205407496 U CN 205407496U CN 201620157249 U CN201620157249 U CN 201620157249U CN 205407496 U CN205407496 U CN 205407496U
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- magnet synchronous
- synchronous electric
- thermomechanical components
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 48
- 239000012809 cooling fluid Substances 0.000 claims abstract description 49
- 238000001816 cooling Methods 0.000 claims description 50
- 230000000930 thermomechanical effect Effects 0.000 claims description 37
- 230000004308 accommodation Effects 0.000 claims description 10
- 239000006200 vaporizer Substances 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 4
- 230000005347 demagnetization Effects 0.000 abstract description 7
- 230000002093 peripheral effect Effects 0.000 abstract 3
- 239000002826 coolant Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005276 aerator Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Motor Or Generator Cooling System (AREA)
Abstract
The utility model provides a PMSM subassembly and have its compressor and air conditioner. A permanent magnet synchronous motor assembly comprising: a barrel having a receiving cavity; the stator is arranged in the accommodating cavity; the stator is sleeved on the outer peripheral wall of the rotor, an air gap channel communicated with the accommodating cavity is formed between the stator and the outer peripheral wall of the rotor, and a cooling fluid channel for introducing cooling fluid into the air gap channel is formed in the cylinder wall of the cylinder; and the air return channel is arranged on the cylinder wall of the cylinder body and the stator and is communicated with the air gap channel. The cooling fluid is introduced to the peripheral wall of the rotor to cool the rotor, so that the rotor of the motor is prevented from being seriously lost due to demagnetization of the permanent magnet when running in a high-temperature environment for a long time.
Description
Technical field
This utility model relates to a kind of permanent magnet synchronous electric thermomechanical components and has its compressor and air-conditioner.
Background technology
Permagnetic synchronous motor has that volume is little, overall operation efficiency is high, power factor (PF) high, is often applied to the driving of compressor in recent years.Compared with transmission asynchronous starting motor, permagnetic synchronous motor adopts the permanent magnet excitation in rotor, exciting current can be avoided to cause excitation loss while producing magnetic field, it also requires adopt forced heat radiation measure to take away the heat within permagnetic synchronous motor, it is to avoid the internal rotor permanent magnet demagnetization phenomenon because causing under high-temperature work environment for a long time.Especially heavy-duty motor, winding current is big, and whole environment caloric value is obvious especially, and cooling measure must be ensured.
The type of cooling that existing permagnetic synchronous motor adopts can be divided into two kinds according to motor type, open machine is frequently with air-cooled, fan drive motor surrounding air is utilized to flow, thus being motor radiating, but this kind of structure can increase the temperature of whole environment, need to additionally increasing equipment environment to external world to dispel the heat, this structure has certain limitation；Enclosed motor employing freon etc. evaporates, non-conductive liquid cooling medium cools down, and what existing major part compressor arrangement all adopted is this kind of type of cooling.
The method conventional about the enclosed permagnetic synchronous motor type of cooling also has multiple, can be that stator two ends winding sprays cooling medium, or set up helical flow path to cool down winding hull-skin temperature at stator outer surface, but these measures are all more single, cooling effect is limited, it is only applicable to the motor of middle low power, when power of motor rises to 800KW, when 1500KW is even bigger, owing to motor length can increase a lot, traditional type of cooling is only capable of cooling two ends of rotor or stator outer surface, and it is difficult to be cooled to rotor middle part, it is easily caused internal rotor permanent magnet because causing demagnetization phenomenon under high-temperature work environment for a long time.
Utility model content
Main purpose of the present utility model is in that provide a kind of permanent magnet synchronous electric thermomechanical components and have its compressor and air-conditioner, to solve the problem that in prior art, motor inhomogeneous cooling is even.
To achieve these goals, according to an aspect of the present utility model, it is provided that a kind of permanent magnet synchronous electric thermomechanical components, including: cylinder, there is accommodation chamber；Stator, is arranged in accommodation chamber；Rotor, stator sleeve be located on the periphery wall of rotor and and the periphery wall of rotor between be formed and hold the air gap channel that chamber is connected, the barrel of cylinder offers cooling fluid is introduced the cooling channels to air gap channel；Return gas channel, is opened in the barrel of cylinder and is connected with on stator and with air gap channel.
Further, accommodation chamber is separated into the first chamber and the second chamber by stator, first chamber and the second chamber are positioned at the two ends of air gap channel mutually, wherein, the import of cooling channels is arranged on the barrel of cylinder, and cooling channels has the first outlet being connected with the first chamber and the second outlet being connected with the second chamber.
Further, in the first outlet and the second outlet, at least one is opened on the barrel on top of cylinder.
Further, cooling channels includes: cooling fluid inlet, is opened on the barrel of cylinder；Helical duct, is opened on the internal perisporium of cylinder and extends along the circumferential and axial direction of stator, and the arrival end of helical duct is connected with cooling fluid inlet, and the port of export of helical duct is connected with air gap channel.
Further, the arrival end of helical duct is positioned at the medium position along himself axial direction of helical duct.
Further, helical duct has two ports of export being oppositely arranged, and two ports of export are connected with the first chamber and the second chamber to form the first outlet and the second outlet respectively.
Further, two ports of export of helical duct are respectively arranged at the head end place being positioned at the first chamber and the second chamber and the tail end place of stator.
Further, the channel pitch of helical duct is uniform along the axial direction of stator.
Further, the direction of rotation of helical duct is identical with the magnetic direction that the coil of stator produces or contrary.
Further, return gas channel includes: cooling fluid issuing, is opened on the periphery wall of cylinder；Cooling duct, is opened on stator, and air gap channel is connected with cooling fluid issuing by cooling duct.
Further, the axis of cooling duct is extended along the radial direction of stator.
To achieve these goals, according to another aspect of the present utility model, additionally providing a kind of compressor, including permanent magnet synchronous electric thermomechanical components, permanent magnet synchronous electric thermomechanical components is above-mentioned permanent magnet synchronous electric thermomechanical components.
To achieve these goals, according to another aspect of the present utility model, provide again a kind of air-conditioner, including permanent magnet synchronous electric thermomechanical components, compressor, vaporizer and condenser, permanent magnet synchronous electric thermomechanical components is above-mentioned permanent magnet synchronous electric thermomechanical components, cooling channels is connected with condenser, and return gas channel is connected with the air entry of vaporizer or compressor.
Application the technical solution of the utility model, stator sleeve be located on the periphery wall of rotor and and the periphery wall of rotor between be formed and hold the air gap channel that chamber is connected, the barrel of cylinder offers cooling fluid is introduced the cooling channels to air gap channel.Cooling fluid causes the periphery wall of rotor sentence rotor is lowered the temperature, it is to avoid the rotor longtime running of motor causes serious loss because permanent magnet demagnetization in hot environment.
Accompanying drawing explanation
The Figure of description constituting the part of the application is used for providing being further appreciated by of the present utility model, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 illustrates the sectional view according to permanent magnet synchronous electric thermomechanical components of the present utility model.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling:
10, cylinder；11, cooling channels；11a, the first outlet；11b, the second outlet；12, cooling fluid inlet；13, helical duct；20, stator；30, rotor；40, air gap channel；50, return gas channel；51, cooling fluid issuing；52, cooling duct.
Detailed description of the invention
It should be noted that when not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As it is shown in figure 1, this utility model provides a kind of permanent magnet synchronous electric thermomechanical components.
Specifically, permanent magnet synchronous electric thermomechanical components includes cylinder 10, stator 20, rotor 30, air gap channel 40 and return gas channel 50.Wherein, cylinder 10 has accommodation chamber.Stator 20 is arranged in accommodation chamber, and stator 20 suit of motor is fixed on the inside of cylinder 10.Stator 20 be sheathed on the periphery wall of rotor 30 and and the periphery wall of rotor 30 between be formed with air gap channel 40, air gap channel 40 is connected with holding chamber.The rotor 30 of motor is arranged on the inside of stator 20, supports cylinder 10 in front and back bearings.Offering cooling channels 11 on the barrel of cylinder 10, cooling fluid can be introduced to air gap channel 40 by cooling channels 11.Return gas channel 50 is opened on barrel and the stator 20 of cylinder 10, and return gas channel 50 is connected with air gap channel 40.Cooling fluid causes the periphery wall of rotor 30 sentence rotor 30 is lowered the temperature, it is to avoid rotor 30 longtime running of motor causes serious loss because permanent magnet demagnetization in hot environment.The cooling approach of this structural change cooling fluid, and then improve the type of cooling, improves the uniformity of cooling, it is ensured that with improve motor reliability of operation, be particularly well-suited to large-size motor.
This utility model can solve the problem that the cooling problem of heavy-duty motor, wherein, high-power is generally referred to as the motor more than 100KW, is particularly suited for 500KW～1500KW motor in this utility model.This high power permanent magnet synchronous motor can be used for the multiple similar models such as centrifugal compressor, helical-lobe compressor, aerator.Cooling medium for cooling down can be freon or other easy evaporation generation decalescence, nonconducting material.
Permanent magnet synchronous electric thermomechanical components in the present embodiment includes each one of cylinder 10, stator 20 and rotor 30.
It is positioned at the two ends of air gap channel 40, the first chamber and the second chamber is mutually connected as it is shown in figure 1, accommodation chamber is separated into the first chamber and the second chamber, the first chamber and the second chamber by stator 20 by air gap channel 40.Wherein, the import of cooling channels 11 is arranged on the barrel of cylinder 10, and cooling channels 11 has the first outlet 11a being connected with the first chamber, and cooling channels 11 also has the second outlet 11b being connected with the second chamber.Cooling fluid enters the import of cooling channels 11, then export 11a and the second from first respectively and export 11b outflow, the cooling fluid that first outlet 11a flows out enters air gap channel 40, the cooling fluid that second outlet 11b flows out enters air gap channel 40, and cooling fluid is all from return gas channel 50 outflow tube 10.
And then ground, as it is shown in figure 1, the first outlet 11a and the second exports in 11b, at least one is opened on the barrel on top of cylinder 10.The position of the first outlet 11a and/or the second outlet 11b may be located at the optional position on the internal perisporium of cylinder 10, it is possible to TV structure needs arbitrarily arrangement, offers as the best on the barrel on the top of cylinder 10.Because bottom is likely to there is liquid refrigerants, bottom coohng obtains better, offers outlet and be conducive to the cooling on the top to cylinder 10 on the barrel on the top of cylinder 10.
Cooling channels 11 includes cooling fluid inlet 12 and helical duct 13.Specifically, cooling fluid inlet 12 is opened on the barrel of cylinder 10.Helical duct 13 is opened on the internal perisporium of cylinder 10, and helical duct 13 extends along the circumferential and axial direction of stator 20, and the arrival end of helical duct 13 is connected with cooling fluid inlet 12, and the port of export of helical duct 13 is connected with air gap channel 40.Further, the channel pitch of helical duct 13 is uniform along the axial direction of stator 20.Offering helical duct 13 on the inwall of cylinder 10, helical duct 13 can be helicla flute, helical duct 13 direction of rotation can left-handed can dextrorotation.The channel pitch of helical duct 13 can be determined according to power of motor and caloric value size, and spacing is with uniform for best.
Further, helical duct 13 has two ports of export being oppositely arranged, and two ports of export are connected with the first chamber and the second chamber to form the first outlet 11a and second outlet 11b respectively.
The arrival end of helical duct 13 is positioned at the medium position along himself axial direction of helical duct 13.Introduce coolant in the middle of adopting, flow to both sides simultaneously, then return to middle part from the air gap channel 40 at two ends, draw motor by return gas channel 50, it is achieved cooling.
As it is shown in figure 1, the two of helical duct 13 ports of export are respectively arranged at the head end place being positioned at the first chamber and the second chamber and the tail end place of stator 20, so it are easy to cooling fluid and flow through complete air gap channel 40, so that whole rotor is cooled.
The magnetic direction that the direction of rotation of helical duct 13 produces with the coil of stator 20 is identical or contrary.
Specifically, as it is shown in figure 1, return gas channel 50 includes cooling fluid issuing 51 and cooling duct 52.Cooling fluid issuing 51 is opened on the periphery wall of cylinder 10.Cooling duct 52 is opened on stator 20, and air gap channel 40 is connected with cooling fluid issuing 51 by cooling duct 52.
The middle part of cylinder 10 has cooling fluid inlet 12 and the cooling fluid issuing 51 of cooling fluid, and cooling fluid inlet 12 communicates with helical duct 13, and return gas channel 50 then staggers with helical duct 13.Cooling fluid inlet 12 and cooling fluid issuing 51 arbitrarily can be arranged at circumferencial direction, and cooling fluid inlet 12 and cooling fluid issuing 51 may be located at homonymy and be arranged side by side, it is also possible to offset angular, and namely TV structure needs arbitrarily to arrange.During motor rotation, being introduced from the cooling fluid inlet 12 in the middle part of motor by sub-cooled fluid, cooling fluid moves ahead and rear row respectively along the helicla flute on the internal perisporium of cylinder 10 and helical duct 13, arrives separately at motor front-end and back-end.In this process, stator 20 outer rim of motor is cooled down.The cooling fluid at two ends gathers rear pressure and increases, and cooling fluid is pressed in the air gap channel 40 between the stator 20 of motor and rotor 30, returns in the middle part of motor, and cooling fluid is cooled down through part, rotor 30 and stator 20 inside, and cooling fluid temperature (F.T.) raises simultaneously.Finally, cooling fluid is drawn out to the outside of cylinder 10 by the cooling fluid issuing 51 on the barrel of the cooling duct 52 on stator 20 and cylinder 10.This is exactly the type of cooling of motor.
Preferably, the axis of cooling duct 52 is extended along the radial direction of stator 20.Such structure processing and fabricating is simply easily achieved.
This utility model additionally provides a kind of compressor, and compressor includes permanent magnet synchronous electric thermomechanical components, and permanent magnet synchronous electric thermomechanical components is above-mentioned permanent magnet synchronous electric thermomechanical components.Owing to permagnetic synchronous motor is the parts of whole compressor core the most, it it is the power source of whole compressor, core in rotor core especially, once the permanent magnet demagnetization in rotor, will result directly in compressor cannot run well, the loss caused is destructive, and can will avoid the generation of this thing completely by this utility model, it is ensured that whole compressor operating safe and reliable.This utility model can solve the problem that the problem that large-size motor inhomogeneous cooling is even, it is ensured that motor rotation is normal.
This utility model provides again a kind of air-conditioner, and air-conditioner includes permanent magnet synchronous electric thermomechanical components, compressor, vaporizer and condenser.Permanent magnet synchronous electric thermomechanical components is the permanent magnet synchronous electric thermomechanical components in above-described embodiment, and wherein, cooling channels is connected with condenser, and return gas channel is connected with the air entry of vaporizer or compressor.
As can be seen from the above description, this utility model the above embodiments achieve following technique effect:
Rotor be sheathed on the periphery wall of stator and and the periphery wall of stator between be formed and hold the air gap channel that chamber is connected, the barrel of cylinder offers cooling fluid is introduced the cooling channels to air gap channel.Cooling fluid causes the periphery wall of rotor sentence rotor is lowered the temperature, it is to avoid the rotor longtime running of motor causes serious loss because permanent magnet demagnetization in hot environment.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.
Claims (13)
1. a permanent magnet synchronous electric thermomechanical components, it is characterised in that including:
Cylinder (10), has accommodation chamber；
Stator (20), is arranged in described accommodation chamber；
Rotor (30), described stator (20) be set on the periphery wall of described rotor (30) and be formed with the air gap channel (40) being connected with described accommodation chamber between the periphery wall of described rotor (30), the barrel of described cylinder (10) offers cooling fluid is introduced to the cooling channels (11) in described air gap channel (40)；
Return gas channel (50), the barrel being opened in described cylinder (10) above and is connected with described air gap channel (40) with described stator (20).
2. permanent magnet synchronous electric thermomechanical components according to claim 1, it is characterized in that, described accommodation chamber is separated into the first chamber and the second chamber by described stator (20), described first chamber is positioned at the two ends of described air gap channel (40) mutually with described second chamber, wherein, the import of described cooling channels (11) is arranged on the barrel of described cylinder (10), and described cooling channels (11) has the first outlet (11a) being connected with described first chamber and the second outlet (11b) being connected with described second chamber.
3. permanent magnet synchronous electric thermomechanical components according to claim 2, it is characterised in that described first outlet (11a) and described second exports in (11b) that at least one is opened on the barrel on top of described cylinder (10).
4. permanent magnet synchronous electric thermomechanical components according to claim 2, it is characterised in that described cooling channels (11) including:
Cooling fluid inlet (12), is opened on the barrel of described cylinder (10)；
Helical duct (13), it is opened on the internal perisporium of described cylinder (10) and extends along the circumferential and axial direction of described stator (20), the arrival end of described helical duct (13) is connected with described cooling fluid inlet (12), and the port of export of described helical duct (13) is connected with described air gap channel (40).
5. permanent magnet synchronous electric thermomechanical components according to claim 4, it is characterised in that the arrival end of described helical duct (13) is positioned at the medium position along himself axial direction of described helical duct (13).
6. permanent magnet synchronous electric thermomechanical components according to claim 4, it is characterized in that, described helical duct (13) has two ports of export being oppositely arranged, and two described ports of export are connected with described first chamber and described second chamber to form described first outlet (11a) and described second outlet (11b) respectively.
7. permanent magnet synchronous electric thermomechanical components according to claim 6, it is characterized in that, two described ports of export of described helical duct (13) are respectively arranged at the head end place being positioned at described first chamber and described second chamber and the tail end place of described stator (20).
8. permanent magnet synchronous electric thermomechanical components according to claim 4, it is characterised in that the channel pitch of described helical duct (13) is uniform along the axial direction of described stator (20).
9. permanent magnet synchronous electric thermomechanical components according to claim 4, it is characterised in that the magnetic direction that the direction of rotation of described helical duct (13) produces with the coil of described stator (20) is identical or contrary.
10. permanent magnet synchronous electric thermomechanical components according to claim 1, it is characterised in that described return gas channel (50) including:
Cooling fluid issuing (51), is opened on the periphery wall of described cylinder (10)；
Cooling duct (52), is opened on described stator (20), and described air gap channel (40) is connected with described cooling fluid issuing (51) by described cooling duct (52).
11. permanent magnet synchronous electric thermomechanical components according to claim 10, it is characterised in that the axis of described cooling duct (52) is extended along the radial direction of described stator (20).
12. a compressor, it is characterised in that include permanent magnet synchronous electric thermomechanical components, described permanent magnet synchronous electric thermomechanical components is the permanent magnet synchronous electric thermomechanical components according to any one of claim 1 to 11.
13. an air-conditioner, it is characterized in that, including permanent magnet synchronous electric thermomechanical components, compressor, vaporizer and condenser, described permanent magnet synchronous electric thermomechanical components is the permanent magnet synchronous electric thermomechanical components in any of the one of claim 1 to 11, described cooling channels (11) is connected with described condenser, and described return gas channel (50) is connected with the air entry of described vaporizer or described compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620157249.8U CN205407496U (en) | 2016-02-29 | 2016-02-29 | Permanent magnet synchronous motor assembly, compressor with permanent magnet synchronous motor assembly and air conditioner with permanent magnet synchronous motor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620157249.8U CN205407496U (en) | 2016-02-29 | 2016-02-29 | Permanent magnet synchronous motor assembly, compressor with permanent magnet synchronous motor assembly and air conditioner with permanent magnet synchronous motor assembly |
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| Publication Number | Publication Date |
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| CN205407496U true CN205407496U (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620157249.8U Active CN205407496U (en) | 2016-02-29 | 2016-02-29 | Permanent magnet synchronous motor assembly, compressor with permanent magnet synchronous motor assembly and air conditioner with permanent magnet synchronous motor assembly |
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| CN (1) | CN205407496U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329831A (en) * | 2016-09-20 | 2017-01-11 | 珠海格力电器股份有限公司 | Cooling structure of permanent magnet synchronous motor |
| CN107134878A (en) * | 2016-02-29 | 2017-09-05 | 珠海格力电器股份有限公司 | Permanent magnet synchronous motor assembly, compressor with permanent magnet synchronous motor assembly and air conditioner with permanent magnet synchronous motor assembly |
-
2016
- 2016-02-29 CN CN201620157249.8U patent/CN205407496U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134878A (en) * | 2016-02-29 | 2017-09-05 | 珠海格力电器股份有限公司 | Permanent magnet synchronous motor assembly, compressor with permanent magnet synchronous motor assembly and air conditioner with permanent magnet synchronous motor assembly |
| CN106329831A (en) * | 2016-09-20 | 2017-01-11 | 珠海格力电器股份有限公司 | Cooling structure of permanent magnet synchronous motor |
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