CN208508631U - Rotor assembly and motor - Google Patents
Rotor assembly and motor Download PDFInfo
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- CN208508631U CN208508631U CN201821118505.8U CN201821118505U CN208508631U CN 208508631 U CN208508631 U CN 208508631U CN 201821118505 U CN201821118505 U CN 201821118505U CN 208508631 U CN208508631 U CN 208508631U
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- rotor
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- air groove
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Abstract
It includes rotor body that the utility model, which provides a kind of rotor assembly and motor, rotor assembly,；Rotor body includes middle section rotor, and middle section rotor has centered on the axis of terminal rotor, and along the circumferentially evenly arranged magnetic pole of middle section rotor；Magnetic pole includes middle section filling slot, the outer wall of middle section filling slot and middle section rotor there are distance, and it is internal fill conductive magnetic separator, the middle section filling slot in multiple magnetic poles is successively laid along the circumferential direction of middle section rotor.The utility model has the advantages of can not only improving production efficiency, reducing cost, and be conducive to radiate to rotor, reduce rotor inertia.
Description
Technical field
The utility model relates to technical field of motors, in particular to a kind of rotor assembly and motor.
Background technique
Across-the-line starting synchronous magnetic resistance motor combines the design feature of induction machine and synchronous magnetic resistance motor, passes through mouse cage sense
Torque should be generated and realize starting, reluctance torque is generated by inductor rotor gap and realizes permanent revolving speed operation, electricity can be passed directly into
Realize starting operation in source.Across-the-line starting synchronous magnetic resistance motor is compared with line start permanent magnet electric motor, without rare earth permanent-magnetic material,
There is no demagnetization problems, and motor cost is low, good reliability；It is high-efficient compared with asynchronous machine motor, invariablenes turning speed.
In addition, across-the-line starting synchronous magnetic resistance motor starting process includes two parts, a part is that mouse cage generates asynchronous turn
Square makes electric motor starting；When another part is close to synchronous rotational speed, induction torque and reluctance torque are pulled in, i.e. synchronizing capacity.
Since the synchronizing capacity of across-the-line starting synchronous magnetic resistance motor is related with rotor inertia, rotor inertia is smaller, and motor is easily easy
It pulls in.
Patent publication No. for the patent of CN 106537740A provides a kind of rotor, reluctance machine and for the manufacture of rotor
The packing material of method, rotor flux cut-off portion reaches rotor peripheries and forms a part of the rotor peripheries, logical
It also needs to carry out machining, the long low efficiency of manufacturing time, manufacturing cost height after packing material in amount cut-off portion.In addition patent does not have yet
Relate to rotor inertia and rotor heat dissipation problem.
Utility model content
The main purpose of the utility model is to provide a kind of designs rationally, the simple rotor assembly of structure and motor,
It can be improved production efficiency, reduce production cost.
The utility model provides a kind of rotor assembly, including rotor body；
The rotor body includes middle section rotor, and the middle section rotor has centered on the axis of the terminal rotor,
And along the circumferentially evenly arranged magnetic pole of the middle section rotor；
The magnetic pole includes middle section filling slot, and there are distances for the outer wall of the middle section filling slot and the middle section rotor, and
And it is internal fill conductive magnetic separator, circumferential direction successively cloth of the middle section filling slot in multiple magnetic poles along the middle section rotor
If.
More preferably, the magnetic pole further includes the middle section air groove for separating setting with the middle section filling slot, perpendicular to institute
On the section for stating middle section rotor axis, the middle section air groove be located at the middle section filling slot and the middle section rotor axis it
Between.
More preferably, the middle section filling slot described in the same magnetic pole includes the first middle groove, perpendicular to the middle section
On the section of rotor axis, first middle groove and the middle section air groove are using d axis as the zhou duicheng tuxing of symmetry axis.
More preferably, in each magnetic pole, the middle section air groove includes mutually separated the first air groove and second
Air groove；
In the extending direction along d axis, first air groove and second air groove are staggered.
More preferably, reinforcing rib is provided in first air groove, the both ends of the reinforcing rib are connected to described
One air groove is in the opposite two side walls of d axis extending direction.
More preferably, on the section perpendicular to the middle section rotor axis, the reinforcing rib is the axis pair that d axis is symmetry axis
Claim figure.
More preferably, the reinforcing rib is integrally formed on the middle section rotor.
More preferably, the middle section filling slot further includes the second middle groove, and the quantity of second middle groove is described second
Twice of air groove makes the both ends of second air groove that second middle groove respectively be arranged, and perpendicular to described
On the section of middle section rotor axis, it is pair that two middle section air grooves at the both ends of the middle section air groove, which are arranged in, with d axis
Claim axis symmetrical.
More preferably, the rotor body further includes side section rotor, and the side section rotor (14) is fixedly connected on the middle section
The end of rotor axial, and the middle section air groove can be covered.
More preferably, setting filling hole on the side section rotor, the filling hole are equal with the quantity of the middle section filling slot
And connection is corresponded, so that the conductive magnetic separator in the middle section filling slot can fill the filling hole.
More preferably, it is described filling hole cross sectional shape with its corresponding to the cross sectional shape of the middle section filling slot it is identical.
More preferably, in the axis direction along the rotor body, the length of the side section rotor is less than the middle section rotor
Length.
More preferably, the first mounting hole to install rotary shaft is provided on the middle section rotor, on the side section rotor
It is provided with second mounting hole coaxial with first mounting hole, the diameter of second mounting hole is greater than first mounting hole
Diameter.
It more preferably, further include conducting ring；
The conducting ring is fixed on side section rotor back on the end face of the middle section rotor, and it is in place to recline
In in the conductive magnetic separator in the filling hole.
More preferably, the conducting ring is the torus with heat release hole, when being provided on the section rotor of the side and described the
When two mounting holes, the diameter of the heat release hole is greater than the diameter of second mounting hole.
More preferably, the outer diameter of the conducting ring is less than the outer diameter of the side section rotor.
The another aspect of the utility model provides a kind of motor, the rotor assembly including any of the above technical characteristic.
More preferably, further include stator, there is third mounting hole on the stator, the rotor assembly is threaded through the third
In mounting hole, and it is coaxial with the third mounting hole；
Along the rotor body radially, between the outer wall of the rotor body and the inner wall of the mounting hole away from
From for H；
When the magnetic pole further includes middle section air groove, the middle section air groove includes the first air groove, and described the
When being provided with reinforcing rib in one air groove, on the section perpendicular to the rotor body axis, the reinforcing rib is perpendicular to d
The width of axis extending direction is L, and H≤L≤2H.
The rotor assembly of the offer of the utility model is existed using the outer wall of the middle section filling slot and the middle section rotor
Distance, and the internal technical solution for filling conductive magnetic separator, enough raising production efficiency, reduce production cost.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and constitutes one of the utility model
Point, the exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the utility model
Improper restriction.In the accompanying drawings:
Fig. 1 is the decomposition diagram of one embodiment of the utility model rotor assembly；
Fig. 2 is the end view of the rotor assembly in Fig. 1；
Fig. 3 is the middle section rotor end-face schematic diagram in Fig. 1；
Fig. 4 is the side section rotor end-face schematic diagram in Fig. 1.
In figure: 1, rotor body；11, middle section rotor；12, middle section filling slot；121, the first middle groove；122, the second middle section
Slot；13, middle section air groove；131, the first air groove；132, the second air groove；14, side section rotor；15, hole, 16, first are filled
Mounting hole；17, the second mounting hole；2, conducting ring；21, heat release hole.
Specific embodiment
It is specific below in conjunction with the utility model to keep the purpose of this utility model, technical solution and advantage clearer
Technical solutions of the utility model are clearly and completely described in embodiment and corresponding attached drawing.Obviously, described embodiment
It is only the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, this field
Those of ordinary skill's every other embodiment obtained without making creative work, belongs to the utility model
The range of protection.
It should be noted that the specification and claims of the utility model and term " first " in above-mentioned attached drawing,
" second " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that in this way
The data used are interchangeable under appropriate circumstances, so that the embodiments of the present invention described herein can be in addition at this
In illustrate or description those of other than sequence implement.
As shown in Figure 1, 2, 3, a kind of rotor assembly, including rotor body 1, rotor body 1 include middle section rotor 11, middle section
Rotor 11 has centered on the axis of terminal rotor, and along the circumferential evenly arranged magnetic pole of middle section rotor 11, during magnetic pole includes
There are distances for the outer wall of section filling slot 12, middle section filling slot 12 and middle section rotor 11, and conductive magnetic separator (figure is filled in inside
It is not shown), wherein conductive magnetic separator can be aluminum or aluminum alloy, the middle section filling slot 12 in multiple magnetic poles is along middle section rotor 11
Circumferential direction successively lay.Since there are distances for the outer wall of middle section filling slot 12 and middle section rotor 11, compared with the existing technology again to
When middle section filling slot 12 fills conductive magnetic separator, conductive magnetic separator will not be overflowed from the side wall of middle section rotor 11, therefore not
It needs to process the outer wall of middle section rotor 11 secondary, not only reduces production cost, and propose production efficiency
It is high.Further, as shown in figure 3, magnetic pole further include with middle section filling slot 12 separate setting middle section air groove 13, perpendicular to
On the section of 11 axis of middle section rotor, middle section air groove 13 between middle section filling slot 12 and the axis of middle section rotor 11, with
It is radiated by the air to circulate in middle section air groove 13 to middle section rotor 11, while the matter of rotor body 1 can also be reduced
Amount, reduces the inertia of rotor body 1.
Specifically, as shown in figure 3, middle section filling slot 12 includes the first middle groove 121 in same magnetic pole, perpendicular in
On the section of section 11 axis of rotor, the first middle groove 121 and middle section air groove 13 are the axial symmetry figure using d axis as symmetry axis
Shape.Filling slot 12 and middle section air groove 13 form the first layers of flux barriers (not shown go out) in this way, to reduce the magnetic flux of d axis direction, increase
Add magnetic flux q axis axially to circulate, increase the difference of dq axis magnetic flux, increases reluctance torque.Further, as shown in the figure, each
In magnetic pole, middle section air groove 13 includes mutually separated the first air groove 131 and the second air groove 132, and in prolonging along d axis
Direction is stretched, the first air groove 131 and the second air groove 132 are staggered.Wherein, reinforcing rib is provided in the first air groove 131
133, the both ends of reinforcing rib 133 are connected to the first air groove 131 in the opposite two side walls of d axis extending direction, with
Improve the intensity of middle section rotor 11 itself.Simultaneously as forming the second magnetic between the first air groove 131 and the second air groove 132
Barrier layer (not shown go out), and then maximize the difference of dq axis magnetic flux.
Specifically, on the section perpendicular to 11 axis of middle section rotor, reinforcing rib 133 is the axial symmetry that d axis is symmetry axis
Figure.Reinforcing rib 133 is not set at the both ends of the first air groove 131 in this way, as far as possible reduction leakage field, promote electric efficiency.In reality
In the production of border, reinforcing rib 133 can be integrally formed on middle section rotor 11, it is not limited to this.
Specifically, as shown in Figure 3, middle section filling slot 12 further includes the second middle groove 122, the number of the second middle groove 122
Amount is twice of the second air groove 132, makes the both ends of the second air groove 132 that second middle groove 122 respectively be arranged, and hanging down
Directly it is with d axis in two middle section air grooves 13 that the both ends of middle section air groove 13 on the section of 11 axis of middle section rotor, are arranged in
Symmetry axis is symmetrical.
As an embodiment, as shown in Figure 1, 2, rotor body 1 further includes side section rotor 14, and side section rotor 14 is solid
Surely it is connected to the axial end of middle section rotor 11, and middle section air groove 13 can be covered, to prevent foreign matter from entering middle section sky
Air drain 13.Specifically, as shown in figure 3, filling hole 15 is arranged on the section rotor 14 of side, the quantity in hole 15 and middle section filling slot 12 is filled
It is equal and correspond connection, so that the conductive magnetic separator in middle section filling slot 12 can fill filling hole 15.Wherein, on edge
The length of the axis direction of rotor body 1, side section rotor 14 is much smaller than the length of middle section rotor 11.In actual fabrication, can make
Make two in section rotor 14 and section rotor 14 is placed in the axial both ends of middle section rotor 11 when by two, and is laminated with middle section rotor 11
Rotor body 1 is formed, conductive magnetic separator is then inserted into filling slot 12 by filling slot 15, is that conductive magnetic separator is full of
Filling slot 12 and filling hole 15.Specifically, the cross sectional shape in hole 15 and the section shape of the middle section filling slot 12 corresponding to it are filled
Shape is identical.
It should be noted that as shown in Figure 3,4, in actual fabrication, being provided on middle section rotor 11 to install rotary shaft
The first mounting hole 16, side section rotor 14 on be provided with second mounting hole 17 coaxial with the first mounting hole 16, the second mounting hole
17 diameter is greater than the diameter of the first mounting hole 16.Interfere to avoid between side section rotor 14 and rotary shaft.
It further, further include conducting ring 2 as shown in Fig. 1,4, conducting ring 2 is fixed on side section rotor 14 and turns back to middle section
It on the end face of son 11, and can stick in the conductive magnetic separator being located in filling hole 15, so that multiple 15 Hes of filling hole
Conductive magnetic separator in middle section filling slot 12 is connected to form mouse cage, generates induction torque, and wherein the material of conducting ring 2 can be with
Conductive magnetic separator in middle section filling slot 12 is identical.Again when specific production, when the production for completing rotor body and then side section
Rotor 14 is back to installation production mold on the end face of middle section rotor 11, by 2 one-pass molding of conducting ring on the section rotor 14 of side.Tool
Body, as shown in Figure 1, conducting ring 2 is the torus with heat release hole 21, it is provided with and the second mounting hole when on the section rotor 14 of side
When 17, the diameter of heat release hole 21 is greater than the diameter of the second mounting hole 17.And the outer diameter of conducting ring 2 is less than the outer of side section rotor 14
Diameter.
A kind of motor is provided for the realization another aspect of purpose of utility model the utility model, including described by above embodiments
Rotor assembly.Specifically, further include stator (not shown go out), there is third mounting hole on stator, rotor assembly is threaded through the
In three mounting holes, and it is coaxial with third mounting hole；Along rotor body 1 radially, the outer wall of rotor body 1 and mounting hole
The distance between inner wall is H.Referring to Fig. 3, when magnetic pole further includes middle section air groove 13, middle section air groove 13 includes the first air groove
131, and when being provided with reinforcing rib 133 in the first air groove 131, on the section perpendicular to 1 axis of rotor body, reinforce
Muscle 133 is L, and H≤L≤2H in the width perpendicular to d axis extending direction.It can either guarantee the intensity of rotor body 1 in this way,
Leakage field can be reduced again simultaneously, the efficiency of motor is made to be guaranteed.
Above embodiments, which have the utility model, can not only improve production efficiency, reduce cost, and be conducive to pair
Rotor carries out the advantages of heat dissipation condition rotor inertia.
The above description is only the embodiments of the present invention, is not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of the claims of the utility model.
Claims (18)
1. a kind of rotor assembly, it is characterised in that:
Including rotor body (1)；
The rotor body (1) includes middle section rotor (11), and the middle section rotor (11), which has with the axis of terminal rotor, is
The heart, and along the circumferential evenly arranged magnetic pole of the middle section rotor (11)；
The magnetic pole includes middle section filling slot (12), and the outer wall of the middle section filling slot (12) and the middle section rotor (11) exists
Distance, and conductive magnetic separator is filled in inside, and the middle section filling slot (12) in multiple magnetic poles is along the middle section rotor
(11) circumferential direction is successively laid.
2. rotor assembly according to claim 1, it is characterised in that:
The magnetic pole further includes the middle section air groove (13) for separating setting with the middle section filling slot (12), perpendicular in described
On the section of section rotor (11) axis, the middle section air groove (13) is located at the middle section filling slot (12) and the middle section rotor
(11) between axis.
3. rotor assembly according to claim 2, it is characterised in that:
The middle section filling slot (12) described in the same magnetic pole includes the first middle groove (121), is turned perpendicular to the middle section
On the section of sub (11) axis, first middle groove (121) and the middle section air groove (13) are using d axis as symmetry axis
Zhou duicheng tuxing.
4. rotor assembly according to claim 3, it is characterised in that:
In each magnetic pole, the middle section air groove (13) includes mutually separated the first air groove (131) and the second sky
Air drain (132)；
In the extending direction along d axis, first air groove (131) and second air groove (132) are staggered.
5. rotor assembly according to claim 4, it is characterised in that:
It is provided with reinforcing rib (133) in first air groove (131), the both ends of the reinforcing rib (133) are connected to institute
The first air groove (131) is stated in the opposite two side walls of d axis extending direction.
6. rotor assembly according to claim 5, it is characterised in that:
On the section perpendicular to middle section rotor (11) axis, the reinforcing rib (133) is the axial symmetry that d axis is symmetry axis
Figure.
7. rotor assembly according to claim 5, it is characterised in that:
The reinforcing rib (133) is integrally formed on the middle section rotor (11).
8. rotor assembly according to claim 4, it is characterised in that:
The middle section filling slot (12) further includes the second middle groove (122), and the quantity of second middle groove (122) is described the
Twice of two air grooves (132) makes the both ends of second air groove (132) that second middle groove (122) respectively be arranged,
And on the section perpendicular to middle section rotor (11) axis, two at the both ends of the middle section air groove (13) are set
The middle section air groove (13) is symmetrical as symmetry axis using d axis.
9. according to rotor assembly described in claim 2 to 8 any one, it is characterised in that:
The rotor body (1) further includes side section rotor (14), and the side section rotor (14) is fixedly connected on the middle section rotor
(11) axial end, and the middle section air groove (13) can be covered.
10. rotor assembly according to claim 9, it is characterised in that:
Setting filling hole (15) on the side section rotor (14), the quantity of filling hole (15) and the middle section filling slot (12)
It is equal and correspond connection, so that the conductive magnetic separator in the middle section filling slot (12) can fill the filling hole
(15)。
11. rotor assembly according to claim 10, it is characterised in that:
It is described filling hole (15) cross sectional shape with its corresponding to the cross sectional shape of the middle section filling slot (12) it is identical.
12. rotor assembly according to claim 9, it is characterised in that:
It is less than the middle section rotor (11) in the length of the axis direction along the rotor body (1), the side section rotor (14)
Length.
13. rotor assembly according to claim 9, it is characterised in that:
The first mounting hole (16) to install rotary shaft is provided on the middle section rotor (11), on the side section rotor (14)
It is provided with second mounting hole (17) coaxial with first mounting hole (16), the diameter of second mounting hole (17) is greater than institute
State the diameter of the first mounting hole (16).
14. rotor assembly according to claim 10, it is characterised in that:
It further include conducting ring (2)；
The conducting ring (2) is fixed on side section rotor (14) back on the end face of the middle section rotor (11), and can
It sticks in the conductive magnetic separator being located in filling hole (15).
15. rotor assembly according to claim 14, it is characterised in that:
The conducting ring (2) is the torus with heat release hole (21), when being provided with the second installation on side section rotor (14)
When hole (17), the diameter of the heat release hole (21) is greater than the diameter of second mounting hole (17).
16. rotor assembly according to claim 14, it is characterised in that:
The outer diameter of the conducting ring (2) is less than the outer diameter of the side section rotor (14).
17. a kind of motor, it is characterised in that:
Including rotor assembly described in claim 1 to 16 any one.
18. motor according to claim 17, it is characterised in that:
Further including stator, there is third mounting hole on the stator, the rotor assembly is threaded through in the third mounting hole, and
It is coaxial with the third mounting hole；
Along the rotor body (1) radially, between the outer wall of the rotor body (1) and the inner wall of the mounting hole
Distance is H；
When the magnetic pole further includes middle section air groove (13), the middle section air groove (13) includes the first air groove (131), and
When being provided with reinforcing rib (133) in first air groove (131), in the section perpendicular to the rotor body (1) axis
On, the reinforcing rib (133) is L, and H≤L≤2H in the width perpendicular to d axis extending direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821118505.8U CN208508631U (en) | 2018-07-13 | 2018-07-13 | Rotor assembly and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821118505.8U CN208508631U (en) | 2018-07-13 | 2018-07-13 | Rotor assembly and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208508631U true CN208508631U (en) | 2019-02-15 |
Family
ID=65284676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821118505.8U Active CN208508631U (en) | 2018-07-13 | 2018-07-13 | Rotor assembly and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208508631U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711969A (en) * | 2018-07-13 | 2018-10-26 | 珠海格力电器股份有限公司 | Rotor assembly and motor |
-
2018
- 2018-07-13 CN CN201821118505.8U patent/CN208508631U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711969A (en) * | 2018-07-13 | 2018-10-26 | 珠海格力电器股份有限公司 | Rotor assembly and motor |
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