CN209088654U - Rotor, motor and air-conditioning system - Google Patents
Rotor, motor and air-conditioning system Download PDFInfo
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- CN209088654U CN209088654U CN201821981174.0U CN201821981174U CN209088654U CN 209088654 U CN209088654 U CN 209088654U CN 201821981174 U CN201821981174 U CN 201821981174U CN 209088654 U CN209088654 U CN 209088654U
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- rotor
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- magnet isolation
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model provides a kind of rotor, motor and air-conditioning system.Wherein, rotor includes: cage-shaped structure, and cage-shaped structure includes slot wedge and at least one end pressing plate, and end pressing plate is connected by way of casting or welding or riveting with slot wedge；The stacked punching of multiple phases, punching have multiple magnet isolation tanks, and slot wedge is multiple, and multiple slot wedges are arranged in a one-to-one correspondence in multiple magnet isolation tanks, and end pressing plate is located at the end of punching；Axis, axis sequentially pass through end pressing plate and punching.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, motor and air-conditioning system.
Background technique
Currently, high-speed permanent magnetic synchronous motor is quickly grown, and is widely used in the centrifuge etc. of heating and ventilating equipment, since motor turns
Fast height (generally having 10000rpm or more), the rotary inertia of rotor is big, therefore to be generally used punching outer diameter small for rotor structure,
Repeatedly thick big elongated shaped iron core (embedded magnet steel).And needed between adjacent two pole of permanent-magnetic synchronous motor rotor every magnetic, it in this way can be with
Rotor leakage is reduced, is solved at present using magnet isolation tank is opened.Large-power High-Speed permanent magnet synchronous motor turns since rotor size is big
Dynamic inertia and rotor centrifugal force are also big, be easy to cause magnet isolation tank position deformed damaged, it is therefore desirable to fill out using non-magnetic material
Fill magnet isolation tank.
The rotor core being made of the ontology 10 ' of the existing punching with cooling hole 40 ' is as depicted in figs. 1 and 2, due to
Magnetic slot 12 ' is 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 ',
The mechanical strength of rotor can also be increased.At present only put on motor shaft, end pressing plate 30 ', rotor core, magnet steel 50 ' and
Slot wedge 20 ' etc. just can be connected to an entirety.And in rotor manufacture craft, can only also it be respectively installed on axis.Rotor
Structural integrity and structural strength are relatively weaker.And the rotor of high-speed permanent magnetic synchronous motor need to bear very big centrifugal force and
Rotatory inertia, structural integrity is better, then structural strength is bigger, can also bear bigger centrifugal force, motor operation revolving speed
It is 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, motor and air-conditioning systems, to solve in the prior art
Rotor core structure intensity difference the problem of.
To achieve the goals above, one aspect according to the present utility model, provides rotor, comprising: cage-shaped structure, mouse
Basket structure includes slot wedge and at least one end pressing plate, and end pressing plate and slot wedge are connected by way of casting or welding or riveting
It connects；The stacked punching of multiple phases, punching have multiple magnet isolation tanks, and slot wedge is multiple, and multiple slot wedges are arranged in a one-to-one correspondence more
In a magnet isolation tank, end pressing plate is located at the end of punching；Axis, axis sequentially pass through end pressing plate and punching.
Further, slot wedge is metal non-permeable material.
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 further includes two kinds of magnetic multiple magnet steel, multiple
Magnet steel is arranged in a one-to-one correspondence in multiple magnetic slots, and is provided at least between the different magnetic corresponding magnetic slots of two magnet steel
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 is equal to the number of magnet isolation tank；Or the number of magnet isolation tank is equal to the number of poles of rotor
Twice.
Further, the number of the magnetic slot of every pole of rotor 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, 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.
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 in the application includes: the stacked punching of cage-shaped structure, multiple phases
And axis.Cage-shaped structure includes slot wedge and at least one end pressing plate, and end pressing plate and slot wedge by casting or weld or rivet
Mode connect；Punching has multiple magnet isolation tanks, and slot wedge is multiple, and multiple slot wedges are arranged in a one-to-one correspondence in multiple magnet isolation tanks
Interior, end pressing plate is located at the end of punching；Axis sequentially passes through end pressing plate and punching.
Using above structure rotor when, by end pressing plate and slot wedge by consolidating by way of casting or welding or riveting
Determine first make punching, magnet steel, end pressing plate and slot wedge composition iron core assembly body, structure before assembly to constitute cage-shaped structure
At an entirety, and enhance the overall structural strength of rotor core, rotor is made to be able to bear bigger centrifugal force, increases motor
Efficiency.And the vortex along rotor surface generated when motor operates normally can be absorbed in the slot wedge of the cage-shaped structure formed, and
It is zeroed by end pressing plate short circuit, so that thicker silicon steel sheet can be used under identical circumstances as rotor core, is born
Same vortes interference, and then increase rotor core effective length, improve electric efficiency.
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 existing rotor core structure schematic diagram；
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 radial cross-section of Fig. 9；
Figure 11 shows the cross-sectional view of the broken line K-K of Figure 10；
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；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 provide a kind of rotor, motor 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 turns suitable for the embedded permanent magnet synchronous motor for enjoying magnet steel 50 used
Sub- 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.
As shown in Fig. 3 to Figure 11, the rotor in the application includes the stacked punching 10 and axis of cage-shaped structure, multiple phases.
Cage-shaped structure includes slot wedge 20 and at least one end pressing plate 30, and end pressing plate 30 and slot wedge 20 by casting or weld or rivet
Mode connect；Punching 10 has multiple magnet isolation tanks 11, and slot wedge 20 is multiple, and multiple slot wedges 20 are arranged in a one-to-one correspondence multiple
In magnet isolation tank 11, end pressing plate 30 is located at the end of punching 10；Axis sequentially passes through end pressing plate 30 and punching 10.
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 use above structure rotor when, pass through by
End pressing plate 30 and slot wedge 20 are fixed by way of casting or welding or riveting to constitute cage-shaped structure, can before assembly first
So that punching 10, magnet steel 50, end pressing plate 30 and slot wedge 20 is formed iron core assembly body, constitutes an entirety, and enhance rotor
The overall structural strength of iron core makes rotor be able to bear bigger centrifugal force, increases electric efficiency.And the cage-shaped structure formed
Slot wedge 20 vortex along rotor surface that generates when motor operates normally can be absorbed, and returned by 30 short circuit of end pressing plate
Zero, so that thicker silicon steel sheet can be used under identical circumstances as rotor core, same vortes interference is born, in turn
Increase rotor core effective length, improves electric efficiency.
And when there is the misoperation of Nonsymmetric Short Circuit or laod unbalance in motor, rotor will appear in short-term,
Axially flow, frequency is the very big induced current of 2 times of inverter current frequencies, this electric current can make rotor heating, Ke Nengzao
At the irreversible demagnetization of magnet steel 50.After cage-shaped structure, then the induced current of this 2 overtones band can be allowed mainly from slot wedge
20 flow through, and form closed circuit at both ends, and cancel out each other.Which reduces the rotor of high-speed permanent magnetic synchronous motor hairs
Heat reduces the irreversible demagnetization risk of magnet steel 50.
Specifically, slot wedge 20 is metal non-permeable material.Since slot wedge 20 is made of metal non-permeable material,
So slot wedge 20 can connect into an entirety with closing panel, both maintained between the two neighboring pole in existing structure in this way
Magnetism isolating effect and mechanical strength, simultaneously because slot wedge 20 and end pressing plate 30 connect into an entirety, equivalent to increase one
Frame-type anchor ear can tightly embrace rotor iron core lamination 10, therefore increase the mechanical strength and structural strength of rotor entirety,
To achieve the effect that improve motor speed.Furthermore it is also possible to first be ground the inner hole of rotor core assembly, motor shaft is refilled,
In this way on the assembly technology of rotor assembly, than current method, more 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 5, punching 10 has multiple magnetic slots 12 along its circumferential direction, rotor further includes two kinds of magnetic multiple magnet steel
50, multiple magnet steel 50 are arranged in a one-to-one correspondence in multiple magnetic slots 12, and the different magnetic corresponding magnetic slots of two magnet steel 50
At least one magnet isolation tank 11 is provided between 12.It is arranged while alloing magnet isolation tank 11 to play separated magnetic effect in this way, moreover it is possible to
Enough after being inserted into slot wedge 20 into magnet isolation tank 11, an entirety is connected by slot wedge 20 and end pressing plate 30, can not only be increased
Add the stability of entire rotor core, but also can make rotor core can be whole as one before being assembled to electric machine main shaft
Body.
In specific embodiment shown in Fig. 10, 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 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.
In specific embodiment shown in Fig. 5, the magnetic slot 12 adjacent thereto of magnet isolation tank 11 is spaced setting.By magnet isolation tank 11
Magnetic slot 12 adjacent thereto is spaced setting, in this way can separate magnet steel 50 and slot wedge 20, so as to enhance punching
The fixing intensity of 10 pairs of magnet steel 50 and slot wedge 20, reduce magnet steel 50 in magnetic slot 12 shaking and slot wedge 20 in magnet isolation tank 11
Shaking, and then enhance rotor core stability.
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 is equal to the number of magnet isolation tank 11.When the number of poles of rotor core is equal to of magnet isolation tank 11
When number, 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.And work as magnet isolation tank 11
Number when being equal to twice of number of poles of rotor core, then magnet isolation tank 11 is arranged in the both sides pair of central axes between two neighboring pole
Claim distribution.Concrete condition can be selected according to the length of rotor core and other demand conditions.
Optionally, the number of the magnetic slot 12 of every pole of rotor is not more than three.When the number mistake of the magnetic slot 12 of setting
When more, the intensity of punching 10 will weaken, and become easy damage.So, it should every pole is selected according to actual service condition
12 numbers of magnetic slot, avoid that be easy punching 10 impaired 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.
Also, magnet isolation tank 11 can not only play the role of every magnetic, and since at least part of magnet isolation tank 11 is connected to
To the edge of punching 10 to form open slot, so reducing magnetic leakage factor, i.e., open slot has radially separated rotor surface magnetic
The continuity on road, therefore magnet steel 50 can be eliminated along the leakage field of rotor surface.And slot wedge can also be facilitated by being arranged to open slot
20 handling.
Optionally, punching 10 also has cooling hole, and cooling hole and the interval of magnet isolation tank 11 are arranged.Since rotor is operating normally
During can generate a large amount of heat, so in punching 10 be arranged cooling hole can be during rotor operation to rotor
It carries out cooling heat, and prevents motor shaft from overheating, to be protected to entire rotor core.
Optionally, punching 10 has multiple magnetic slots 12 along its circumferential direction, and cooling hole is located at the area that multiple magnetic slots 12 surround
In domain.It is of course also possible to be reasonably arranged according to position of the actual service condition to cooling hole.In this application, may be used
With according to the setting arrangement mode of the number of magnetic slot 12, magnetic slot 12, whether there is or not cooling hole and the position of cooling hole etc., 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 utility model the above embodiments realize using semi-open slot and make
The nonmetallic slot wedge 20 that motor is replaced with metallic non-magnetic material can not only play every magnetic and reinforce rotor core mechanical strength
Effect, and eliminate along rotor surface leakage field and reduce the whirlpool of rotor surface generated along motor normal course of operation
Stream；And when there is laod unbalance or Nonsymmetric Short Circuit, additionally it is possible to rotor abnormal current is absorbed, rotor heating is reduced,
The demagnetization risk of magnet steel 50 is reduced, and protects rotor from burning out.
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 characterized by comprising
Cage-shaped structure, the cage-shaped structure include slot wedge (20) and at least one end pressing plate (30), the end pressing plate (30)
It is connected by way of casting or welding or riveting with the slot wedge (20)；
The stacked punching (10) of multiple phases, the punching (10) have multiple magnet isolation tanks (11), and the slot wedge (20) is multiple, and
Multiple slot wedges (20) are arranged in a one-to-one correspondence in multiple magnet isolation tanks (11), and the end pressing plate (30) is located at the punching
The end of piece (10)；
Axis, the axis sequentially pass through the end pressing plate (30) and the punching (10).
2. rotor according to claim 1, which is characterized in that the slot wedge (20) is metal non-permeable material.
3. rotor according to claim 1, which is characterized in that the slot wedge (20) is same with the end pressing plate (30)
Made of kind material.
4. rotor according to claim 2, which is characterized in that the slot wedge (20) is made of aluminium or copper product.
5. rotor according to claim 1, which is characterized in that the punching (10) has multiple magnetic slots along its circumferential direction
(12), the rotor further includes two kinds of magnetic multiple magnet steel (50), and multiple magnet steel (50) are arranged in a one-to-one correspondence multiple
Be provided in the magnetic slot (12), and between the corresponding magnetic slot (12) of different magnetic two magnet steel (50) to
A few magnet isolation tank (11).
6. rotor according to claim 5, which is characterized in that different two magnetic magnet steel (50) are corresponding described
There are two the magnet isolation tank (11) for setting between magnetic slot (12), and two magnet isolation tanks (11) are along the punching (10)
Vertical plane M is symmetrical arranged.
7. rotor according to claim 5, 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.
8. rotor according to any one of claim 1 to 7, which is characterized in that
The number of poles of the rotor 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.
9. rotor according to any one of claims 5 to 7, which is characterized in that the magnet steel of every pole of the rotor
The number of slot (12) is not more than three.
10. rotor according to any one of claim 1 to 7, which is characterized in that at least one of the magnet isolation tank (11)
Divide the edge for being connected to the punching (10) to form open slot.
11. rotor according to claim 1, which is characterized in that the punching (10) also has cooling hole, the cooling hole
It is spaced and is arranged with the magnet isolation tank (11).
12. rotor according to claim 11, which is characterized in that the punching (10) has multiple magnetic slots along its circumferential direction
(12), the cooling hole is located in the region that multiple magnetic slots (12) surround.
13. a kind of motor, which is characterized in that including rotor 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 |
|---|---|---|---|
| CN201821981174.0U CN209088654U (en) | 2018-11-27 | 2018-11-27 | Rotor, motor and air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821981174.0U CN209088654U (en) | 2018-11-27 | 2018-11-27 | Rotor, motor and air-conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209088654U true CN209088654U (en) | 2019-07-09 |
Family
ID=67125920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821981174.0U Active CN209088654U (en) | 2018-11-27 | 2018-11-27 | Rotor, motor and air-conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209088654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109327089A (en) * | 2018-11-27 | 2019-02-12 | 珠海格力电器股份有限公司 | Rotor, motor and air-conditioning system |
-
2018
- 2018-11-27 CN CN201821981174.0U patent/CN209088654U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109327089A (en) * | 2018-11-27 | 2019-02-12 | 珠海格力电器股份有限公司 | Rotor, motor and air-conditioning system |
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