CN206164277U - Pivot, motor and air conditioner - Google Patents
Pivot, motor and air conditioner Download PDFInfo
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- CN206164277U CN206164277U CN201621120966.XU CN201621120966U CN206164277U CN 206164277 U CN206164277 U CN 206164277U CN 201621120966 U CN201621120966 U CN 201621120966U CN 206164277 U CN206164277 U CN 206164277U
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- mandrel
- magnetic
- bearing rotor
- rotating shaft
- magnetic force
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Abstract
The utility model provides a pivot, motor and air conditioner. Wherein, the pivot includes: the dabber, magnetic force portion sets up at the spindle with the magnetic field on providing A predetermined direction, bearing rotor, cover are established and are set up at the spindle and with magnetic force portion interval, the first magnetism portion that separates presss from both sides and establishes between bearing rotor and dabber. Use the technical scheme of the utility model can solve the high problem of the pivot control degree of difficulty among the prior art effectively.
Description
Technical field
The utility model is related to high-speed magnetic levitation field, in particular to a kind of rotating shaft, motor and air-conditioner.
Background technology
High speed permanent magnet motor rotor structure of the prior art, using monoblock annular magnetic steel 4 (surface-mount type magnet steel), Suo Youzhuan
Successively hot charging in rotor mandrel 7, by sheath 2 annular magnetic steel 4 and transmitting torque is protected to sub- part.Annular magnetic steel 4 provides electricity
The main field of machine, the R in Fig. 1 is the magnetic induction line of main field.Above-mentioned high speed rotor structure, although employ magnetic shielding structure
(every magnetic baffle plate 3 and every magnetic baffle plate 5) is carried out every magnetic treatment, but its mandrel 7 is permeability magnetic material, rotor axial direction stray field meeting
Bearing rotor assembly 1 and bearing rotor assembly 6 through mandrel 7 Yu both sides forms coupling circuit Q and coupling circuit S.It is coupled back into
Road Q and coupling circuit S can produce interference to radial direction magnetic bearing magnetic field P and radial direction magnetic bearing magnetic field T, so as to increased two side bearings
The control difficulty of rotor assembly.
Utility model content
Main purpose of the present utility model is to provide a kind of rotating shaft, motor and air-conditioner, of the prior art to solve
The high problem of rotating shaft control difficulty.
To achieve these goals, according to one side of the present utility model, there is provided a kind of rotating shaft, including：Mandrel；Magnetic
Power portion, is arranged on mandrel to provide the magnetic field on predetermined direction；Bearing rotor, is set on mandrel and sets with magnetic force portion interval
Put；First magnetic isolation unit, is folded between bearing rotor and mandrel.
Further, the first magnetic isolation unit includes magnetic shield, and magnetic shield includes the first body, and the first body is folded in bearing and turns
Between the inwall and the outer wall of mandrel of son.
Further, magnetic shield also includes the second body, the second body be arranged on the first body towards the one of magnetic force portion
Side or the side away from magnetic force portion, the external diameter of the second body is more than the external diameter of the first body to form first step structure, axle
Forward son to be arranged at first step structure.
Further, mandrel has first end and the second end, and bearing rotor includes being arranged on the first of the first end of mandrel
Bearing rotor and be arranged on mandrel the second end second bearing rotor, magnetic shield be two, respectively forward with first axle
The first magnetic shield and the second magnetic shield with second bearing rotor engagement that son coordinates.
Further, the first magnetic isolation unit also includes magnetism-isolating loop, and magnetism-isolating loop is set on mandrel, the end face of magnetism-isolating loop, first
The outer wall of body forms receiving space with the step surface of first step structure, and clutch shaft bearing rotor is located in receiving space.
Further, clutch shaft bearing rotor is contacted along its axial two ends end face with the second body and magnetism-isolating loop.
Further, the lug boss that mandrel includes mandrel body and is arranged on mandrel this body sidewall, mandrel body with it is convex
The portion of rising forms second step portion towards one end of the first end of mandrel, and magnetism-isolating loop is located at first end of the second step portion towards mandrel
Side.
Further, magnetism-isolating loop is contacted with the step surface in second step portion.
Further, magnetic force portion is set on mandrel and is located in lug boss away from one end and second of the first end of mandrel
Between magnetic shield.
Further, to be set in first set with interference external for bearing rotor.
Further, magnetic force portion is annular magnetic steel, and annular magnetic steel is provided with positioning on the end face of the first end of mandrel
Groove, is provided with two location holes that magnetize, the line of two location holes that magnetize and the bearing of trend of locating slot on the second end of mandrel
It is parallel or vertical.
Further, the first magnetic isolation unit is made up of non-magnet material.
Further, rotating shaft also includes：Second magnetic isolation unit, is arranged on mandrel and is located at the axially external of magnetic force portion.
According to another aspect of the present utility model, there is provided a kind of motor, including：Rotating shaft, rotating shaft is above-mentioned rotating shaft.
According to another aspect of the present utility model, there is provided a kind of air-conditioner, including：Motor, motor is above-mentioned motor.
Using the technical solution of the utility model, rotating shaft includes magnetic force portion and the bearing rotor being arranged on mandrel.Its
In, magnetic force portion can provide the magnetic field on predetermined direction.Bearing rotor be set on mandrel and with magnetic force portion interval setting.Rotating shaft
Also include the first magnetic isolation unit, the first magnetic isolation unit is folded between bearing rotor and mandrel.Said structure causes bearing rotor and leads
The mandrel of magnetic separated by the first magnetic isolation unit, it is to avoid axial leakage field forms coupling circuit through bearing rotor, enters one
Step avoids the coupling circuit of generation and interference is produced to the radial direction magnetic bearing magnetic field of bearing rotor, and then reduces two side bearings turn
The control difficulty of son, solves the problems, such as that rotating shaft control difficulty of the prior art is high.
Description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding to of the present utility model, this practicality
New schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model.
In the accompanying drawings：
Fig. 1 shows the vertical profile structural representation of rotating shaft of the prior art；
Fig. 2 shows the vertical profile structural representation of the embodiment according to rotating shaft of the present utility model；
Fig. 3 shows the mplifying structure schematic diagram at the A of the rotating shaft of Fig. 2；
Fig. 4 shows the side structure schematic view of the rotating shaft of Fig. 2.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
10th, mandrel；11st, mandrel body；12nd, lug boss；13rd, magnetize location hole；20th, magnetic force portion；21st, locating slot；31st,
One bearing rotor；32nd, second bearing rotor；40th, the first magnetic isolation unit；41st, magnetic shield；411st, the first body；412nd, the second body；
42nd, magnetism-isolating loop；50th, the second magnetic isolation unit；51st, first every magnetic baffle plate；52nd, second every magnetic baffle plate；53rd, sheath.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Below with reference to the accompanying drawings and in conjunction with the embodiments describing the utility model in detail.
As shown in Fig. 2 the rotating shaft of the present embodiment includes mandrel 10, magnetic force portion 20, bearing rotor and the first magnetic isolation unit 40.
Wherein, magnetic force portion 20, is arranged on mandrel 10 to provide the magnetic field on predetermined direction.Bearing rotor, is set on mandrel 10 simultaneously
With the interval setting of magnetic force portion 20.First magnetic isolation unit 40, is folded between bearing rotor and mandrel 10.
Using the technical scheme of the present embodiment, rotating shaft includes magnetic force portion 20 and the bearing rotor being arranged on mandrel 10.
Wherein, magnetic force portion 20 can provide the magnetic field on predetermined direction.Bearing rotor is set on mandrel 10 and is spaced with magnetic force portion 20
Arrange.Rotating shaft also includes the first magnetic isolation unit 40, and the first magnetic isolation unit 40 is folded between bearing rotor and mandrel 10.Said structure makes
Obtain bearing rotor to separate by the first magnetic isolation unit 40 with the mandrel 10 of magnetic conduction, so as to avoid axial leakage field through bearing
Coupling circuit is formed after rotor, radial direction magnetic bearing magnetic field generation of the coupling circuit of generation to bearing rotor is further avoid dry
Disturb, and then reduce the control difficulty of both sides bearing rotor, improve journal bearing control accuracy, solve of the prior art
The high problem of rotating shaft control difficulty, while improve the systematic function of rotating shaft.
As shown in Fig. 2 in the present embodiment, the first magnetic isolation unit 40 includes magnetic shield 41, and magnetic shield 41 includes the first body
411, the first body 411 is folded between the outer wall of the inwall of bearing rotor and mandrel 10.Said structure is simple, it is easy to assemble.
Preferably, in the present embodiment the first body 411 is cylindrical in shape structure, and said structure causes bearing rotor completely outer with mandrel 10
Wall is separated, so that magnetism isolating effect is more preferably.Certainly, it will be appreciated by those skilled in the art that magnetic shield 41 can with by
Multi-disc antifreeze plate is constituted, and is linked together by attachment structure between each antifreeze plate.
As shown in Fig. 2 in the present embodiment, magnetic shield 41 also includes the second body 412, and the second body 412 is arranged on the
The side towards magnetic force portion 20 of one body 411 or the side away from magnetic force portion 20.Said structure is further increased every magnetic
The magnetism isolating effect of set 41.In addition, in the present embodiment, the external diameter of the second body 412 is more than the external diameter of the first body 411 to be formed
First step structure, bearing rotor is arranged at first step structure.Said structure is simple, it is easy to assemble.Certainly, this area skill
It can also be Split type structure that art personnel should be known that the first body 411 and the second body 412 can be structure as a whole.Need
It is bright, in the present embodiment, need the hot jacket of magnetic shield 41 when mounted on mandrel 10.Above-mentioned assembling is simple, it is easy to real
It is existing.
As shown in Fig. 2 in the present embodiment, mandrel 10 has first end and the second end, and bearing rotor includes being arranged on core
The clutch shaft bearing rotor 31 of the first end of axle 10 and be arranged on mandrel 10 the second end second bearing rotor 32, magnetic shield 41
For two, respectively with clutch shaft bearing rotor 31 coordinate the first magnetic shield and with second bearing rotor 32 coordinate second every
Magnetosheath.In said structure, clutch shaft bearing rotor 31 is separated with the mandrel 10 of magnetic conduction by the first magnetic shield, so as to avoid
Axial leakage field forms coupling circuit after bearing rotor, further avoid the coupling circuit of generation to clutch shaft bearing rotor
Radial direction magnetic bearing magnetic field produce interference, and then reduce the control difficulty of clutch shaft bearing rotor.In the same manner, second bearing rotor 32
Separated by the second magnetic shield with the mandrel 10 of magnetic conduction, so as to avoid axial leakage field shape after second bearing rotor
Into coupling circuit, the coupling circuit that further avoid generation produces interference to the radial direction magnetic bearing magnetic field of second bearing rotor,
Further reduce the control difficulty of second bearing rotor.
It should be noted that in the present embodiment, when mounted, need the magnetic shield mistake of clutch shaft bearing rotor 31 and first
It is full of and is combined together, after the two hot charging first assembly is formed.Equally, also need to during installation by second bearing rotor 32 and second every
Magnetosheath interference fit together, forms the second component after the two hot charging.
The hot jacket of magnetic shield 41 is on mandrel 10.Above-mentioned assembling is simple, it is easy to accomplish.
Preferably, in the present embodiment, the second body 412 of the first magnetic shield be arranged on the first body 411 away from magnetic
The side in power portion 20, the second body 412 of the second magnetic shield is arranged on the side towards magnetic force portion 20 of the first body 411.
In order to avoid clutch shaft bearing rotor 31 is contacted towards the end face in magnetic force portion 20 and the mandrel 10 of magnetic conduction.As shown in Fig. 2
In the present embodiment, the first magnetic isolation unit 40 also includes magnetism-isolating loop 42, and magnetism-isolating loop 42 is set on mandrel 10, the end of magnetism-isolating loop 42
The step surface in face, the outer wall of the first body 411 and first step structure forms receiving space, and clutch shaft bearing rotor 31 is located at and accommodates
In space.Said structure causes the surface beyond the exterior surface of clutch shaft bearing rotor 31 by the first magnetic isolation unit 40 and mandrel 10
Separate, therefore further avoid axial leakage field and form coupling circuit after clutch shaft bearing rotor 31, it is to avoid
The coupling circuit of generation produces interference to the radial direction magnetic bearing magnetic field of clutch shaft bearing rotor 31, and then reduces clutch shaft bearing rotor
Control difficulty, improve the systematic function of rotating shaft.
As shown in Fig. 2 in the present embodiment, bearing rotor is set in interference outside the first body 411.Said structure letter
It is single, it is easy to assemble and ensure that the job stability of bearing rotor.Specifically, in the present embodiment, clutch shaft bearing rotor 31
And second bearing rotor 32 is set in interference outside the first body 411.
As shown in Fig. 2 in the present embodiment, clutch shaft bearing rotor 31 is along its axial two ends end face and the second body 412
Contact with magnetism-isolating loop 42.Said structure causes magnetism isolating effect more preferably.
As shown in Fig. 2 in the present embodiment, mandrel 10 includes mandrel body 11 and is arranged on the side wall of mandrel body 11
Lug boss 12, mandrel body 11 forms second step portion, magnetism-isolating loop 42 with lug boss 12 towards one end of the first end of mandrel 10
Positioned at second step portion towards the first end of mandrel 10 side.Above-mentioned magnetism-isolating loop 42 can make clutch shaft bearing rotor 31 towards convex
The end face for playing portion 12 is separated, therefore avoids axial leakage field coupling circuit is formed after clutch shaft bearing rotor 31, is improved
The systematic function of rotating shaft.
As shown in Fig. 2 in the present embodiment, magnetism-isolating loop 42 is contacted with the step surface in second step portion.When assembling, need
Magnetism-isolating loop 42 is enclosed within outside mandrel 10 and towards lug boss 12 and is moved, until the end contact of magnetism-isolating loop 42 is to second step portion
Till step surface.Said structure is simple, is easy to workman to install, and improves installation effectiveness.
As shown in Fig. 2 in the present embodiment, magnetic force portion 20 is set on mandrel 10 and is located in lug boss 12 away from mandrel
Between one end of 10 first end and the second magnetic shield.
As shown in Figures 2 and 3, in the present embodiment, rotating shaft also includes：Second magnetic isolation unit 50, is arranged on mandrel 10 simultaneously
Positioned at the axially external of magnetic force portion 20.Said structure causes magnetism isolating effect more preferably so as to improve the systematic function of rotating shaft.Specifically
Ground, the second magnetic isolation unit 50 include first every magnetic baffle plate 51, second every magnetic baffle plate 52.Wherein, first every magnetic baffle plate 51 and second every
Magnetic baffle plate 52 be located at magnetic force portion 20 two ends, and with the interference fit of mandrel 10.And first every magnetic baffle plate 51 and second every magnetic baffle plate
52 are non-magnet material, have thus blocked magnetic circuit, greatly reduce the generation of leakage field phenomenon.
As shown in Figures 2 and 3, in the present embodiment, rotating shaft also includes：Sheath 53.Sheath 53 adopts nickel-bass alloy material,
And it is interference fit every magnetic baffle plate 52 every magnetic baffle plate 51, second with mandrel 10, magnetic force portion 20, first.Due to magnetic force portion 20 it is high
Larger centrifugal action can be subject to during speed operating, and the tensile strength of magnetic force portion 20 is less, compression strength is very high, therefore said structure
So that magnetic force portion 20 is still subject to compression when motor rotates at a high speed, so as to ensure that rotating shaft runs well.It should be noted that
In the present embodiment, the length of sheath 53 more than magnetic force portion 20, first every magnetic baffle plate 51 and second every magnetic baffle plate 52 axial length
Sum.
As shown in Fig. 2 in the present embodiment, magnetic force portion 20 is annular magnetic steel, and said structure is simple, it is easy to processing and dress
Match somebody with somebody.
It should be noted that because hot charging sheath 53 may produce overheated loss of excitation to magnetic force portion 20, therefore should be by rotating shaft
After assembling magnetic force portion 20 magnetized again, you can the phenomenon for avoiding overheated loss of excitation is produced.
Magnetized orientation when making in magnetic force portion 20.Said structure causes magnetic force portion 20 after magnetic of substituting the bad for the good, generation
Magnetic direction is identical with magnetic direction set in advance.In order that magnetic force portion 20 can magnetize along the direction of the orientation that magnetizes.Such as
Shown in Fig. 2 and Fig. 4, in the present embodiment, annular magnetic steel is provided with locating slot 21, core on the end face of the first end of mandrel 10
Two location holes 13 that magnetize are provided with second end of axle 10.During installation so that the line of two location holes 13 that magnetize and positioning
The bearing of trend of groove 21 is parallel or vertical, you can ensure that magnetic force portion 20 can magnetize along the direction of the orientation that magnetizes.
Preferably, in the present embodiment, annular magnetic steel is NdFeB material.Locating slot 21 on annular magnetic steel is to be located at ring
The little groove that the center of circle is opened is crossed on the end face of shape magnet steel.The locating slot 21 of annular magnetic steel end face is parallel with the line of location hole 13 that magnetizes
(or vertical), magnetize orientation (or parallel) vertical with the direction of locating slot 21, and annular magnetic steel is gap cooperation with mandrel 10.Enter one
Step preferably, on annular magnetic steel inwall or the outer wall of mandrel 10 magnet steel glue is coated with, and can so cause annular magnetic steel and mandrel
10 connection is more solid and reliable.
Preferably, in the present embodiment, the first magnetic isolation unit 40 is made up of non-magnet material, has thus blocked magnetic circuit, greatly
The generation of leakage field phenomenon is reduced greatly.
Assembling process is as follows：
1st, would be heated to first after uniform temperature on the hot charging of magnetic baffle plate 51 to mandrel 10；
2nd, annular magnetic steel set is attached on mandrel 10, and makes the line and annular of two on mandrel 10 location holes 13 that magnetize
The locating slot 21 parallel (or vertical) of magnet steel end face；
3rd, second after uniform temperature is would be heated on the hot charging of magnetic baffle plate 52 to mandrel 10, and carry out axial compression, with
Annular magnetic steel is set to be in by pressure condition；
4th, the alloy sleeve hot charging of uniform temperature is will warm up on mandrel 10, and carry out axial compression, make sheath 53
End face is fitted with the end face of mandrel 10；
5th, respectively hot charging is inserted on mandrel 10 to would be heated to the first assembly after uniform temperature, the second component.
The assembling of countershaft can be completed by above step, complete to magnetize by the location hole 13 that magnetizes after finishing.
Present invention also provides a kind of motor, includes according to the motor (not shown) of the application：Rotating shaft, rotating shaft is upper
The rotating shaft stated.Because rotating shaft has the control difficulty of bearing rotor low, the high advantage of journal bearing control accuracy.Therefore there is it
Motor also have above-mentioned advantage.
Present invention also provides a kind of air-conditioner, includes according to the air-conditioner (not shown) of the application：Motor, motor
For above-mentioned motor.Because motor has the control difficulty of bearing rotor low, the high advantage of journal bearing control accuracy.Therefore have
There is its air-conditioner that also there is above-mentioned advantage.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (15)
1. a kind of rotating shaft, it is characterised in that include：
Mandrel (10)；
Magnetic force portion (20), is arranged on the mandrel (10) to provide the magnetic field on predetermined direction；
Bearing rotor, be set on the mandrel (10) and with magnetic force portion (20) interval setting；
First magnetic isolation unit (40), is folded between the bearing rotor and the mandrel (10).
2. rotating shaft according to claim 1, it is characterised in that first magnetic isolation unit (40) is including magnetic shield (41), institute
Magnetic shield (41) is stated including the first body (411), first body (411) be folded in the inwall of the bearing rotor with it is described
Between the outer wall of mandrel (10).
3. rotating shaft according to claim 2, it is characterised in that the magnetic shield (41) also includes the second body (412), institute
State the second body (412) be arranged on first body (411) the direction magnetic force portion (20) side or away from magnetic force
The side in portion (20), the external diameter of second body (412) is more than the external diameter of first body (411) to form first step
Structure, the bearing rotor is arranged at the first step structure.
4. rotating shaft according to claim 3, it is characterised in that the mandrel (10) is described with first end and the second end
Bearing rotor includes the clutch shaft bearing rotor (31) of the first end for being arranged on the mandrel (10) and is arranged on the mandrel
(10) the second bearing rotor (32) at the second end, the magnetic shield (41) is two, respectively with the clutch shaft bearing rotor
(31) the first magnetic shield for coordinating and the second magnetic shield coordinated with the second bearing rotor (32).
5. rotating shaft according to claim 4, it is characterised in that first magnetic isolation unit (40) also includes magnetism-isolating loop (42),
The magnetism-isolating loop (42) is set on the mandrel (10), the end face of the magnetism-isolating loop (42), first body (411) it is outer
Wall forms receiving space with the step surface of the first step structure, and the clutch shaft bearing rotor (31) is positioned at the receiving space
It is interior.
6. rotating shaft according to claim 5, it is characterised in that the clutch shaft bearing rotor (31) is along its axial two ends end
Face contacts with second body (412) and magnetism-isolating loop (42).
7. rotating shaft according to claim 5, it is characterised in that the mandrel (10) is including mandrel body (11) and is arranged on
Lug boss (12) on the wall of mandrel body (11) side, the mandrel body (11) is with the lug boss (12) towards the core
One end of the first end of axle (10) forms second step portion, and the magnetism-isolating loop (42) is positioned at the second step portion towards the core
The side of the first end of axle (10).
8. rotating shaft according to claim 7, it is characterised in that the step in the magnetism-isolating loop (42) and the second step portion
Face contacts.
9. rotating shaft according to claim 7, it is characterised in that the magnetic force portion (20) is set on the mandrel (10) simultaneously
The lug boss (12) is located between one end of the first end of the mandrel (10) and second magnetic shield.
10. rotating shaft according to claim 2, it is characterised in that the bearing rotor is set in interference the first set
Body (411) is outward.
11. rotating shafts according to claim 1, it is characterised in that the magnetic force portion (20) is annular magnetic steel, the annular magnetic
Steel back is provided with locating slot (21) on the end face of the first end of the mandrel (10), arranges on the second end of the mandrel (10)
There are two location holes that magnetize (13), the line of described two location holes that magnetize (13) is flat with the bearing of trend of the locating slot (21)
Row is vertical.
12. rotating shafts according to claim 1, it is characterised in that first magnetic isolation unit (40) is made up of non-magnet material.
13. rotating shafts according to claim 1, it is characterised in that the rotating shaft also includes：
Second magnetic isolation unit (50), is arranged on the mandrel (10) and positioned at the axially external of the magnetic force portion (20).
A kind of 14. motors, including：Rotating shaft, it is characterised in that the rotating shaft is turning any one of claim 1 to 13
Axle.
A kind of 15. air-conditioners, including：Motor, it is characterised in that the motor is the motor described in claim 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621120966.XU CN206164277U (en) | 2016-10-13 | 2016-10-13 | Pivot, motor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621120966.XU CN206164277U (en) | 2016-10-13 | 2016-10-13 | Pivot, motor and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206164277U true CN206164277U (en) | 2017-05-10 |
Family
ID=58653131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621120966.XU Active CN206164277U (en) | 2016-10-13 | 2016-10-13 | Pivot, motor and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206164277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329813A (en) * | 2016-10-13 | 2017-01-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotation shaft, motor and air-conditioner |
-
2016
- 2016-10-13 CN CN201621120966.XU patent/CN206164277U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329813A (en) * | 2016-10-13 | 2017-01-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotation shaft, motor and air-conditioner |
| WO2018068545A1 (en) * | 2016-10-13 | 2018-04-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Shaft, motor and air conditioner |
| CN106329813B (en) * | 2016-10-13 | 2019-03-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Shaft, motor and air conditioner |
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