CN208986801U - Rotor core, motor and air-conditioning system - Google Patents
Rotor core, motor and air-conditioning system Download PDFInfo
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- CN208986801U CN208986801U CN201821969923.8U CN201821969923U CN208986801U CN 208986801 U CN208986801 U CN 208986801U CN 201821969923 U CN201821969923 U CN 201821969923U CN 208986801 U CN208986801 U CN 208986801U
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- rotor core
- slot
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- punching
- magnet isolation
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model provides a kind of rotor core, motor and air-conditioning system.Wherein, rotor core includes: the stacked punching of multiple phases, and punching has multiple magnet isolation tanks；Slot wedge, slot wedge is multiple, and multiple slot wedges are arranged in a one-to-one correspondence in multiple magnet isolation tanks, and slot wedge is metal non-permeable material；The end of punching is arranged at least one end pressing plate, end pressing plate.The utility model solves the problems, such as rotor core structure intensity difference in the prior art.
Description
Technical field
The utility model relates to permanent magnet synchronous motor fields, in particular to a kind of rotor core, motor and air-conditioning system
System.
Background technique
It needs that rotor leakage can be reduced in this way every magnetic between adjacent two pole of permanent-magnetic synchronous motor rotor, uses open at present
Magnet isolation tank solves.Large-power High-Speed permanent magnet synchronous motor, since rotor size is big, rotary inertia and rotor centrifugal force are also big,
It is easy to cause magnet isolation tank position deformed damaged, it is therefore desirable to fill magnet isolation tank using non-magnetic material.
The rotor core being made of the existing punching 10 ' with cooling hole 40 ' is as depicted in figs. 1 and 2, due to magnetic slot
12 ' are connected with magnet isolation tank 11 ', and magnet isolation tank 11 ' has separated magnetic effect, after being inserted into non-metallic insulation slot wedge 20 ', additionally it is possible to
Increase the mechanical strength of rotor.Magnet isolation tank 11 ' is generally filled using the slot wedge 20 ' that non-metal insulating material is made at present, is held
Portion's pressing plate 30 ' uses stainless steel, and slot wedge 20 ' is nonmetallic materials, and end pressing plate 30 ' is metal material, and the two is difficult to connect into
It is whole, only put on motor shaft, end pressing plate 30 ', rotor core, magnet steel 50 ' and slot wedge 20 ' etc. just can be connected to one it is whole
Body.And in rotor manufacture craft, can only also it be respectively installed on axis.The structural integrity and structural strength relative mistake of rotor
It is some.And the rotor of high-speed permanent magnetic synchronous motor needs to bear very big centrifugal force and rotatory inertia, structural integrity is better, then
Structural strength is bigger, can also bear bigger centrifugal force, and motor operation revolving speed is also higher.
Therefore, presently, there are rotor core structure intensity difference the problem of.
Utility model content
The main purpose of the utility model is to provide a kind of rotor core, motor and air-conditioning systems, to solve existing skill
The problem of rotor core structure intensity difference in art.
To achieve the goals above, one aspect according to the present utility model provides a kind of rotor core, comprising: more
The stacked punching of a phase, punching have multiple magnet isolation tanks；Slot wedge, slot wedge is multiple, and multiple slot wedges are arranged in a one-to-one correspondence more
In a magnet isolation tank, slot wedge is metal non-permeable material；The end of punching is arranged at least one end pressing plate, end pressing plate
Portion.
Further, slot wedge and end pressing plate are made of same material.
Further, slot wedge is made of aluminium or copper product.
Further, punching has multiple magnetic slots along its circumferential direction, and rotor core further includes two kinds of magnetic multiple magnet steel,
Multiple magnet steel are arranged in a one-to-one correspondence in multiple magnetic slots, and are provided between the different magnetic corresponding magnetic slots of two magnet steel
At least one magnet isolation tank.
Further, between the different magnetic corresponding magnetic slots of two magnet steel setting there are two magnet isolation tank, and two every
Magnetic slot is symmetrical arranged along the middle vertical plane M of punching.
Further, magnet isolation tank magnetic slot connection adjacent thereto；Or magnet isolation tank magnetic slot interval adjacent thereto is set
It sets.
Further, the number of poles of rotor core is equal to the number of magnet isolation tank；Or the number of magnet isolation tank is equal to rotor core
Twice of number of poles.
Further, the number of the magnetic slot of every pole of rotor core is not more than three.
Further, at least part of magnet isolation tank is connected to the edge of punching to form open slot.
Further, end pressing plate and slot wedge are fixed by way of casting or welding or riveting to constitute cage-shaped structure.
Further, punching also has cooling hole, and cooling hole and magnet isolation tank interval are arranged.
Further, punching has multiple magnetic slots along its circumferential direction, and cooling hole is located in the region that multiple magnetic slots surround.
Another aspect according to the present utility model provides a kind of motor, including above-mentioned rotor core.
Another aspect according to the present utility model provides a kind of air-conditioning system, including above-mentioned motor.
Using the technical solution of the utility model, the rotor core in the application includes the stacked punching of multiple phases, slot wedge
And at least one end pressing plate.Punching has multiple magnet isolation tanks；Slot wedge is multiple, and multiple slot wedges are arranged in a one-to-one correspondence multiple
In magnet isolation tank, slot wedge is metal non-permeable material；The end of punching is arranged in end pressing plate.
Using above structure rotor core when, when slot wedge is filled in the magnet isolation tank of the stacked punching of multiple phases, by
In slot wedge made of metal non-permeable material, so slot wedge can connect into an entirety with closing panel, both protect in this way
The magnetism isolating effect and mechanical strength between the two neighboring pole in existing structure are held, simultaneously because slot wedge is connected into end pressing plate
One entirety can tightly embrace rotor iron core lamination, therefore it is whole to increase rotor equivalent to increase a frame-type anchor ear
The mechanical strength and structural strength of body, to achieve the effect that improve motor speed.Furthermore it is also possible to which first grinding rotor core fills
The inner hole of ligand refills motor shaft, in this way on the assembly technology of rotor assembly, more advantages of simple, effect than current method
More preferably.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of existing rotor core；
Fig. 2 shows the A-A direction views of Fig. 1；
Fig. 3 show multiple punchings in an alternative embodiment in the utility model it is stacked after structural schematic diagram；
Fig. 4 shows the main view of Fig. 3；
Fig. 5 shows the side view of Fig. 4；
Fig. 6 shows the knot for the cage-shaped structure that slot wedge and end pressing plate are formed in an alternative embodiment of the utility model
Structure schematic diagram；
Fig. 7 shows the main view of Fig. 6；
Fig. 8 shows the B-B direction view of Fig. 7；
Fig. 9 shows the structural schematic diagram of the rotor core after Fig. 3 is connected with the punching in Fig. 6, slot wedge with end pressing plate；
Figure 10 shows the main view of Fig. 9；
Figure 11 shows the C-C direction view of Figure 10；
Figure 12 shows the sectional view of the broken line K-K in Figure 11；
Figure 13 shows the structural schematic diagram of punching in another embodiment of the utility model, wherein of magnet isolation tank
Number is equal to 2 times of rotor number of poles；And
Figure 14 shows the structural schematic diagram after the punching in multiple Figure 11 is stacked.
Wherein, the above drawings include the following reference numerals:
10, punching；11, magnet isolation tank；12, magnetic slot；20, slot wedge；30, end pressing plate；40, cooling hole；50, magnet steel.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have and the application
The normally understood identical meanings of person of an ordinary skill in the technical field.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is usually
It is for direction shown in the drawings, or for component itself is on vertical, vertical or gravity direction；Together
Sample, it for ease of understanding and describes, " inside and outside " refers to the inside and outside of the profile relative to each component itself, but the above-mentioned noun of locality is simultaneously
It is not used in limitation the utility model.
In order to solve the problems, such as rotor core structure intensity difference in the prior art, the application provides a kind of rotor core, electricity
Machine and air-conditioning system.
Air-conditioning system in this application, including following motors.Setting can be improved the whole of air-conditioning system and imitate in this way
Rate.It is said from theoretical and structure, following rotor cores is suitable for the permanent-magnetic synchronous motor rotor of embedded radial magnet steel used
Iron core, but from the point of view of actual effect, it is relatively more suitable for the leptosomatic high-speed permanent magnetic synchronous motor of rotor, such as magnetic suspension centrifugation
Machine.In terms of rotor number of poles, it is also relatively specific for 2/4/6/8 pole.
Specifically, the motor in the application includes following rotor core.
As shown in Fig. 3 to Figure 14, the rotor core in the application includes the stacked punching 10 of multiple phases, slot wedge 20 and at least
One end pressing plate 30.Punching 10 has multiple magnet isolation tanks 11；Slot wedge 20 is multiple, and multiple slot wedges 20 are arranged in a one-to-one correspondence
In multiple magnet isolation tanks 11, slot wedge 20 is metal non-permeable material；The end of punching 10 is arranged in end pressing plate 30.
Using above structure rotor core when, when slot wedge 20 is filled in the magnet isolation tank 11 of the stacked punching 10 of multiple phases
When, since slot wedge 20 is made of metal non-permeable material, so slot wedge 20 can connect into an entirety with closing panel,
The magnetism isolating effect and mechanical strength between the two neighboring pole in existing structure had both been maintained in this way, simultaneously because slot wedge 20 and end
Pressing plate 30 connects into an entirety, equivalent to increase a frame-type anchor ear, can tightly embrace rotor iron core lamination 10, because
This increases the mechanical strength and structural strength of rotor entirety, to achieve the effect that improve motor speed.Furthermore it is also possible to first
It is ground the inner hole of rotor core assembly, refills motor shaft, in this way on the assembly technology of rotor assembly, more than current method
Advantages of simple, effect are more preferable.
Specifically, slot wedge 20 and end pressing plate 30 are made of same material.Be arranged slot wedge 20 and end pressing plate 30 by
Same material is made, and slot wedge 20 and end pressing plate 30 more easily can be connected into an entirety in this way.To increase
The stability that slot wedge 20 is connect with end pressing plate 30 guarantees that entire rotor core is able to bear bigger centrifugal force, so as to
The rated speed of motor is designed higher.
Optionally, slot wedge 20 is made of aluminium or copper product.Selecting slot wedge 20 is supported by aluminium or copper, in this way can be with
By using the process of casting, welding or riveting, slot wedge 20 and end pressing plate 30 are more easily connected into one
It is whole.
As shown in Figure 3 and Figure 4, punching 10 has multiple magnetic slots 12 along its circumferential direction, and rotor core further includes two kinds of magnetism
Multiple magnet steel 50, multiple magnet steel 50 are arranged in a one-to-one correspondence in multiple magnetic slots 12, and different two magnetic magnet steel 50 are right
At least one magnet isolation tank 11 is provided between the magnetic slot 12 answered.Being arranged in this way allows magnet isolation tank 11 to play separated magnetic effect
Simultaneously, additionally it is possible to after being inserted into slot wedge 20 into magnet isolation tank 11, an entirety be connected by slot wedge 20 and end pressing plate 30, no
The stability of entire rotor core can only be increased, but also can make rotor core that can become before being assembled to electric machine main shaft
One entirety.
In the specific embodiment shown in Figure 11, it is provided between the different magnetic corresponding magnetic slots 12 of two magnet steel 50
Two magnet isolation tanks 11, and two magnet isolation tanks 11 are symmetrical arranged along the middle vertical plane M of punching 10.It is inserted into this way by slot wedge 20 every magnetic
Behind 11 inside of slot, the middle vertical plane M due to two magnet isolation tanks 11 along punching 10 is symmetrical arranged, and thereby may be ensured that each slot wedge 20
Uniform force, and then prevent entire rotor core from generating deformation due to internal unbalance stress, and slot wedge is circumferentially pairs of
Claim distribution, will not influence the amount of unbalance of rotor.
In the specific embodiment shown in Figure 11, the magnetic slot 12 adjacent thereto of magnet isolation tank 11 is spaced setting.By magnet isolation tank
11 magnetic slots 12 adjacent thereto are spaced setting, in this way can separate magnet steel 50 and slot wedge 20, so as to enhance punching
Piece 10 reduces shaking and slot wedge 20 of the magnet steel 50 in magnetic slot 12 in magnet isolation tank 11 to the fixing intensity of magnet steel 50 and slot wedge 20
Interior shaking, and then enhance the stability of rotor core.
It is of course also possible to which the magnetic slot 12 for keeping magnet isolation tank 11 adjacent thereto is connected to.In such manner, it is possible to reduce opening for punching 10
Mouthful, to increase the intensity of punching 10, increase the durability of punching 10.
Optionally, the number of poles of rotor core is equal to the number of magnet isolation tank 11.When the number of poles of rotor core is equal to magnet isolation tank 11
Number when, magnet isolation tank 11 can be arranged on the central axes between two neighboring pole.It is specific as shown in Figure 5.
In another specific embodiment, the number of magnet isolation tank 11 is equal to twice of the number of poles of rotor core, please refers to figure
13.And when the number of magnet isolation tank 11 is equal to twice of number of poles of rotor core, then by magnet isolation tank 11 be arranged two neighboring pole it
Between central axes both sides it is symmetrical.Concrete condition can be selected according to the length of rotor core and other demand conditions
It selects.
Optionally, the number of the magnetic slot 12 of every pole of rotor core is not more than three.As of the magnetic slot 12 of setting
When number is excessive, the intensity of punching 10 will weaken, and become easy damage.So, it should it is selected according to actual service condition
12 numbers of magnetic slot of every pole avoid making punching 10 be easy to be damaged because the number of magnetic slot 12 is excessive.
As shown in figure 5, at least part of magnet isolation tank 11 is connected to the edge of punching 10 to form open slot.Work as rotor
When iron core uses non-salient pole structure, i.e., magnet isolation tank 11 connects together with magnetic slot 12, and at this moment being formed is closed slot, in such case
Under, rotor surface has into biggish vortex when high-speed cruising.And rotor core uses 0.35mm punching 10 to laminate to reduce at present
Rotor vortex, but 10 stacking factor of 0.35mm punching is also relatively low.So using open slot as between adjacent pole every magnetic
Slot 11 can separate rotor magnetic steel 50 (main field) along the leakage field of rotor surface, reduce rotor iron loss.
As shown in Figure 6 and Figure 7, end pressing plate 30 and slot wedge 20 are fixed by way of casting or welding or riveting to constitute
Cage-shaped structure.In existing technical solution, need by electric machine main shaft, punching 10, magnet steel 50, end pressing plate 30 and slot wedge 20
Five kinds of different materials could form rotor assembly, could constitute an entirety.And by the way that end pressing plate 30 and slot wedge 20 are led to
It is fixed to constitute cage-shaped structure to cross the mode for casting or welding or riveting, can first make punching 10, magnet steel 50, end before assembly
Pressing plate 30 and slot wedge 20 form iron core assembly body, constitute an entirety, and enhance the overall structural strength of rotor core, make
Rotor is able to bear bigger centrifugal force, increases electric efficiency.And motor can be absorbed in the slot wedge 20 of the cage-shaped structure formed
The vortex along rotor surface generated when normal operation, and by 30 short circuit zero of end pressing plate, thus under identical circumstances
Thicker silicon steel sheet can be used and bear same vortes interference as rotor core, and then increase rotor core effective length,
Improve electric efficiency.
Optionally, in specific embodiment shown in Fig. 5, punching 10 also has cooling hole 40, cooling hole 40 and magnet isolation tank
11 interval settings.Since rotor can generate a large amount of heat during normal operation, so cooling is arranged in punching 10
Hole 40 can carry out cooling heat rotor during rotor operation, and prevent motor shaft from overheating, thus to entire rotor
Iron core is protected.
Optionally, punching 10 has multiple magnetic slots 12 along its circumferential direction, and cooling hole 40 is located at what multiple magnetic slots 12 surrounded
In region.It is of course also possible to be reasonably arranged according to position of the actual service condition to cooling hole 40.In the application
In, can according to the number of magnetic slot 12, magnetic slot 12 setting arrangement mode, whether there is or not the positions of cooling hole 40 and cooling hole 40
Set, carry out different permutation and combination, thus select suitable 10 structure of punching carry out using.
It can be seen from the above description that the above embodiments of the utility model achieve the following technical effects:
1, the mechanical strength for increasing rotor entirety can reach the effect for improving motor speed equivalent to increase a frame
Formula anchor ear tightly embraces rotor iron core lamination 10；
2, rotor heating caused by reducing rotor surface vortex and being vortexed, prevents magnet steel 50 from demagnetizing；
3, rotor field is reduced along the leakage field of rotor surface, improves electric efficiency；
4, when laod unbalance state or three-phase Nonsymmetric Short Circuit occurs in motor, 2 times along rotor axial can be weakened
The transient current of reverse frequency, and rotor heating is reduced, in case irreversible demagnetization occurs for magnet steel 50, and can be to avoid central air-conditioning
There is performance inconsistency.
Obviously, above-mentioned described embodiment is only the embodiment of the utility model a part, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The range of the utility model protection all should belong in the every other embodiment obtained.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, work, device, component and/or their combination.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that presently filed embodiment described herein can be in addition to illustrating herein
Or the sequence other than those of description is implemented.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (14)
1. a kind of rotor core characterized by comprising
The stacked punching (10) of multiple phases, the punching (10) have multiple magnet isolation tanks (11)；
Slot wedge (20), the slot wedge (20) is multiple, and multiple slot wedges (20) are arranged in a one-to-one correspondence multiple described every magnetic
In slot (11), the slot wedge (20) is metal non-permeable material；
At least one end pressing plate (30), end of end pressing plate (30) setting in the punching (10).
2. rotor core according to claim 1, which is characterized in that the slot wedge (20) is with the end pressing plate (30)
Made of same material.
3. rotor core according to claim 1, which is characterized in that the slot wedge (20) is made of aluminium or copper product.
4. rotor core according to claim 1, which is characterized in that the punching (10) has multiple magnet steel along its circumferential direction
Slot (12), the rotor core further include two kinds of magnetic multiple magnet steel (50), and multiple magnet steel (50) are arranged in a one-to-one correspondence
It is set in multiple magnetic slots (12), and between the corresponding magnetic slot (12) of different magnetic two magnet steel (50)
It is equipped at least one described magnet isolation tank (11).
5. rotor core according to claim 4, which is characterized in that different two magnetic magnet steel (50) are corresponding
There are two the magnet isolation tank (11) for setting between the magnetic slot (12), and two magnet isolation tanks (11) are along the punching (10)
Middle vertical plane M be symmetrical arranged.
6. rotor core according to claim 4, which is characterized in that
The magnet isolation tank (11) magnetic slot (12) connection adjacent thereto；Or
The magnet isolation tank (11) magnetic slot (12) adjacent thereto is spaced setting.
7. rotor core according to any one of claim 1 to 6, which is characterized in that
The number of poles of the rotor core is equal to the number of the magnet isolation tank (11)；Or
The number of the magnet isolation tank (11) is equal to twice of the number of poles of the rotor core.
8. the rotor core according to any one of claim 4 to 6, which is characterized in that every pole of the rotor core
The number of the magnetic slot (12) is not more than three.
9. rotor core according to any one of claim 1 to 6, which is characterized in that the magnet isolation tank (11) is at least
A part is connected to the edge of the punching (10) to form open slot.
10. rotor core according to claim 1, which is characterized in that the end pressing plate (30) and the slot wedge (20)
It is fixed by way of casting or welding or riveting to constitute cage-shaped structure.
11. rotor core according to claim 1, which is characterized in that the punching (10) also has cooling hole (40), institute
Cooling hole (40) and the magnet isolation tank (11) interval is stated to be arranged.
12. rotor core according to claim 11, which is characterized in that the punching (10) has multiple magnetic along its circumferential direction
Steel tank (12), the cooling hole (40) are located in the region that multiple magnetic slots (12) surround.
13. a kind of motor, which is characterized in that including rotor core described in any one of claims 1 to 12.
14. a kind of air-conditioning system, which is characterized in that including the motor described in claim 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821969923.8U CN208986801U (en) | 2018-11-27 | 2018-11-27 | Rotor core, motor and air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821969923.8U CN208986801U (en) | 2018-11-27 | 2018-11-27 | Rotor core, motor and air-conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208986801U true CN208986801U (en) | 2019-06-14 |
Family
ID=66791581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821969923.8U Active CN208986801U (en) | 2018-11-27 | 2018-11-27 | Rotor core, motor and air-conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208986801U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256924A (en) * | 2018-11-27 | 2019-01-22 | 珠海格力电器股份有限公司 | Rotor core, motor and air-conditioning system |
| CN110176817A (en) * | 2019-06-26 | 2019-08-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor core, rotor, motor, compressor |
-
2018
- 2018-11-27 CN CN201821969923.8U patent/CN208986801U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256924A (en) * | 2018-11-27 | 2019-01-22 | 珠海格力电器股份有限公司 | Rotor core, motor and air-conditioning system |
| CN110176817A (en) * | 2019-06-26 | 2019-08-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor core, rotor, motor, compressor |
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