CN208707402U - Rotor core, rotor and the magneto with it - Google Patents
Rotor core, rotor and the magneto with it Download PDFInfo
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- CN208707402U CN208707402U CN201821585951.XU CN201821585951U CN208707402U CN 208707402 U CN208707402 U CN 208707402U CN 201821585951 U CN201821585951 U CN 201821585951U CN 208707402 U CN208707402 U CN 208707402U
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- iron core
- cage grooves
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- cage
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Abstract
The utility model discloses a kind of rotor core, rotor and with its magneto, the rotor core includes the first iron core and the second iron core, first iron core is equipped with multiple the first cage grooves being circumferentially evenly spaced on, each first cage grooves radially extending along the first iron core, the radial outer end of each first cage grooves and its radial inner end are located on different radii line.Second iron core and the first iron core are coaxially disposed, axial one end of second iron core is bonded with axial one end of the first iron core, second iron core is equipped with multiple the second cage grooves being circumferentially evenly spaced on, each second cage grooves radially extending along the second iron core, the radial outer end of each second cage grooves and its radial inner end are located on different radii line.The air gap harmonic wave between rotor and stator is reduced according to the rotor core of the utility model embodiment, so that the starting performance of motor is preferable, vibration and noise is all smaller.
Description
Technical field
Forever the utility model relates to motor device field more particularly to a kind of rotor core, rotor and with it
Magneto.
Background technique
Existing self-start permanent magnet synchronous mostly uses cage-shaped structure, the starting of motor is realized using mouse cage winding, so
And mouse cage winding multiform becomes overall structure and is assemblied on rotor core, causes air gap harmonic wave to be not easy to reduce, the startability of motor
Can be poor, noise and vibration are larger.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model mentions
The air gap harmonic wave of a kind of rotor core out, the rotor core is smaller.
The utility model, which also aims to, proposes a kind of rotor with the rotor core.
The utility model, which also aims to, proposes a kind of magneto with the rotor,
It include the first iron core according to the rotor core of the utility model embodiment, first iron core, which has, to be used for
Wear the first centre bore of armature spindle, and multiple first magnetic slots circumferentially distributed along first centre bore, first iron
Core is equipped with multiple the first cage grooves being circumferentially evenly spaced on, and each first cage grooves are along first iron core
It radially extends, the radial outer end of each first cage grooves and its radial inner end are located on different radii line；
Second iron core, second iron core and first iron core are coaxially disposed, axial one end of second iron core with
Axial one end of first iron core is bonded, and second iron core has the second centre bore for wearing the armature spindle, and
Multiple second magnetic slots circumferentially distributed along second centre bore, second iron core are equipped with multiple circumferentially uniform intervals
Second cage grooves of distribution, each second cage grooves radially extending along second iron core, each second mouse cage
The radial outer end of slot and its radial inner end are located on different radii line；Wherein:
First centre bore and second centre bore are coaxially disposed, the multiple first magnetic slot and the multiple the
Two magnetic slots are arranged in a one-to-one correspondence, and first magnetic slot being each correspondingly arranged is same suitable for grafting with second magnetic slot
A permanent magnet.
According to the rotor core of the utility model embodiment, due to the splicing that rotor core is the first iron core and the second iron core
Structure, and be respectively facing on the first cage grooves and the second mouse cage recurrence extending direction the first iron core and the second iron core it is circumferential partially
Move, reduce the air gap harmonic wave between rotor and stator so that the starting performance of motor is preferable, vibration and noise all compared with
It is small.
In some embodiments, the axial length of first iron core is equal to the axial length of second iron core.
In some embodiments, the outer peripheral surface of each first cage grooves towards first iron core is equipped with the first slot
Mouthful, the outer peripheral surface of each second cage grooves towards second iron core is equipped with the second notch, multiple first cage grooves
It is arranged in a one-to-one correspondence with multiple second cage grooves, each first notch is with corresponding second notch described
It is overlapped on the end face that one iron core and second iron core fit.
In some specific embodiments, the radial outer end of each first cage grooves is with respect to its radial inner end described in
The circumferential offset of first iron core, the radial outer end of each second cage grooves is with respect to its radial inner end along second iron core
The circumferential offset of circumferential offset, first cage grooves and second cage grooves is contrary.
In some more specific embodiments, the diameter for radially extending direction Yu first iron core of first cage grooves
Be a1 to the angle in direction, second cage grooves radially extend direction and the angle of the radial direction of second iron core is
A2, a1 and a2 meet relational expression: a1=a2.
In some alternative embodiments, the number of first cage grooves it is equal with the number of second cage grooves and
Meet relational expression equal to M, a1 and a2: 0.5*360 °/M≤a1=a2≤1.5*360 °/M.
In some embodiments, first iron core and second iron core are by multiple rotor punchings superposition punching press shape
At.
Rotor according to the utility model embodiment includes: rotor core, and the rotor core is previously described
Rotor core；Armature spindle, the armature spindle are threaded through in first centre bore and the second centre bore；Multiple permanent magnets, each
The permanent magnet is plugged in first magnetic slot and second magnetic slot being correspondingly arranged.
According to the rotor of the utility model embodiment, due to reducing rotor with previously described rotor core
Air gap harmonic wave between stator, so that the starting performance of motor is preferable, vibration and noise is all smaller.
According to the magneto of the utility model embodiment, including previously described rotor.
According to the magneto of the utility model embodiment, due to reducing rotor with previously described rotor
Air gap harmonic wave between stator, so that the starting performance of motor is preferable, vibration and noise is all smaller.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the structural schematic diagram of the rotor core of the utility model embodiment.
Fig. 2 is the structural schematic diagram of the first rotor punching of the utility model embodiment.
Fig. 3 is the structural schematic diagram of second rotor punching of the utility model embodiment.
Fig. 4 is the structural schematic diagram of the rotor of the utility model embodiment.
Fig. 5 is the decomposition texture schematic diagram of the rotor of the utility model embodiment.
Appended drawing reference:
Rotor 1,
Rotor core 10,
First iron core 110, the first rotor punching 110a,
First centre bore 111, the first magnetic slot 112, the first cage grooves 113, the first notch 114,
Second iron core 120, the second rotor punching 120a,
Second centre bore 121, the second magnetic slot 122, the second cage grooves 123, the second notch 124,
Permanent magnet 20.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term " center ", " length ", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, defining " first ", the feature of " second " can explicitly or implicitly include one or more of the features.At this
In the description of utility model, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Below with reference to Fig. 1-Fig. 3 description according to the rotor core 10 of the utility model embodiment.
It as shown in Figure 1-Figure 3, include the first iron core 110 and the second iron according to the rotor core of the utility model embodiment 10
Core 120, the first iron core 110 have the first centre bore 111 for wearing armature spindle, and circumferentially distributed along the first centre bore 111
Multiple first magnetic slots 112, the first iron core 110 be equipped with multiple the first cage grooves 113 being circumferentially evenly spaced on, often
A first cage grooves 113 are radially extended along the first iron core 110, and the radial outer end and its diameter of each first cage grooves 113 are inside
End is located on different radii line.Second iron core 120 and the first iron core 110 are coaxially disposed, axial one end of the second iron core 120 and the
Axial one end of one iron core 110 is bonded, and the second iron core 120 has the second centre bore 121 for wearing armature spindle, and along second
Circumferentially distributed multiple second magnetic slots 122 of centre bore 121, the second iron core 120 are circumferentially evenly spaced on equipped with multiple
The second cage grooves 123, each second cage grooves 123 radially extend along the second iron core 120, each second cage grooves 123
Radial outer end and its radial inner end are located on different radii line.First centre bore 111 and the second centre bore 121 are coaxially disposed, more
A first magnetic slot 112 is arranged in a one-to-one correspondence with multiple second magnetic slots 122, the first magnetic slot 112 being each correspondingly arranged with
Second magnetic slot 122 is suitable for the same permanent magnet 20 of grafting.
It is understood that the rotor core 10 of the utility model embodiment includes 110 He of the first iron core of coaxial arrangement
Second iron core 120, that is to say, that the rotor core 10 of the embodiment is split type structure.Simultaneously, each first iron core 110
On the first cage grooves 113 radial outer end and its radial inner end be located on different radii line, that is to say, that the first cage grooves 113
Radial outer end relative to its radial inner end along the circumferential offset of the first iron core 110；The second mouse cage on each second iron core 120
The radial outer end of slot 123 and its radial inner end are located on different radii line, that is to say, that the radial outer end phase of the second cage grooves 123
For its radial inner end along the circumferential offset of the second iron core 120, test proves that such core structure favorably reduces rotor
Air gap harmonic wave between stator, so that the starting performance of motor is preferable, vibration and noise is all smaller.
According to the rotor core 10 of the utility model embodiment, since rotor core 10 is the first iron core 110 and the second iron
The splicing construction of core 120, and 110 He of the first iron core is respectively facing on the first cage grooves 113 and the second mouse cage recurrence extending direction
The circumferential offset of second iron core 120 reduces the air gap harmonic wave between rotor and stator so that the starting performance of motor compared with
Good, vibration and noise is all smaller.
Furthermore additional description is needed, in the utility model embodiment, armature spindle can be also cross the first centre bore
111 and second centre bore 121, permanent magnet 20 can be protected in this way also cross the first magnetic slot 112 and the second magnetic slot 122
The structure for demonstrate,proving rotor 1 is relatively simple and firm.
In some embodiments, the axial length of the first iron core 110 is equal to the axial length of the second iron core 120.It can manage
The axial length of solution, the axial length of the first iron core 110 and the second iron core 120 is equal to be conducive to manufacture, thus certain
The manufacturing cost of stator core is reduced in degree.Certainly, what needs to be explained here is that, the axial length of the first iron core 110
The axial length of the second iron core 120 can be not equal to.
In some specific embodiments, as shown in Fig. 2-Fig. 3, first cage grooves of each of each first cage grooves 113
113 are equipped with the first notch 114 towards the outer peripheral surfaces of the first iron cores 110, and each second cage grooves 123 are towards the second iron core 120
Outer peripheral surface is equipped with the second notch 124, and multiple first cage grooves 113 are arranged in a one-to-one correspondence with multiple second cage grooves 123, Mei Ge
One notch 114 is overlapped on the end face that the first iron core 110 and the second iron core 120 fit with corresponding second notch 124.It can be with
Understand, the first notch 114 is with corresponding second notch 124 in the end face that the first iron core 110 and the second iron core 120 fit
Upper coincidence advantageously reduces air gap flux density harmonic wave, to reduce vibrating noise.Certainly, in the other embodiments of the utility model
First notch 114 and corresponding second notch 124 can only partially overlap rather than all be overlapped.
In some embodiments, as shown in Fig. 2-Fig. 3, the radial outer end of each first cage grooves 113 is inside with respect to its diameter
The circumferential offset along the first iron core 110 is held, the radial outer end of each second cage grooves 123 is with respect to its radial inner end along the second iron core
The circumferential offset of 120 circumferential offset, the first cage grooves 113 and the second cage grooves 123 is contrary.It is understood that by
In opposite circumferential offset of its radial inner end along the first iron core 110 of the radial outer end of each first cage grooves 113, each second mouse
The radial outer end of cage slot 123 is with respect to its radial inner end along the circumferential offset of the second iron core 120.Therefore, pair of the first cage grooves 113
Claim the center of circle of the symmetrical center lines of center line and second cage grooves 123 only the first iron core 110 and the second iron core 120, two
The offset direction of person advantageously reduces air gap flux density harmonic wave on the contrary to reduce vibrating noise.Certainly, the utility model its
In his embodiment, the offset direction of the first cage grooves 123 and the second cage grooves 123 can also be identical.
In some more specific embodiments, the radial direction for radially extending direction Yu the first iron core 110 of the first cage grooves 113
The angle in direction is a1, and the angle of the radial direction for radially extending direction and the second iron core 120 of the second cage grooves 123 is a2,
A1 and a2 meet relational expression: a1=a2.It is understood that the deviation angle of the first cage grooves 113 and the second cage grooves 123
Deviation angle is equal to enable to magnetic circuit after 10 grafting permanent magnet 20 of rotor core to be evenly distributed, and air gap flux density harmonic content is few,
Vibration and noise is also smaller.Certainly, in other embodiments of the invention, the deviation angle of the first cage grooves 113 can not also
Equal to the deviation angle of the second cage grooves 123.
In some alternative embodiments, the number of the first cage grooves 113 is equal with the number of the second cage grooves 123 and waits
Meet relational expression in M, a1 and a2: 0.5*360 °/M≤a1=a2≤1.5*360 °/M.Test result shows to meet as a1 and a2
When above-mentioned relation formula, the magnetic circuit after being mounted with permanent magnet 20 of rotor core 10 is evenly distributed, and air gap flux density harmonic content is few, vibration
It is also smaller with noise.Certainly, additional description is needed exist for, the angle of a1 and a2 can adjust according to actual needs, not
It is limited to above range.
In some embodiments, as shown in Fig. 2, the first iron core 110 is superimposed punching press shape by multiple the first rotor punching 110a
At.It is understood that each the first rotor punching 110a has the first centre bore 111, multiple edges the first rotor punching 110a
The axial overlap of its first centre bore 111, this mode to be formed that laminates facilitate molding, simple process, and production cost is low.Certainly
First iron core 110 can not also be limited herein using other molding modes,
In some embodiments, as shown in figure 4, the second iron core 120 is superimposed punching press shape by multiple second rotor punching 120a
At.It is understood that each second rotor punching 120a has the second centre bore 121, multiple edges second rotor punching 120a
The axial overlap of its second centre bore 121, this mode to be formed that laminates facilitate molding, simple process, and production cost is low.Certainly
Second iron core 120 can not also be limited herein using other molding modes,
The rotor core 10 of one specific embodiment of the utility model is described below with reference to Fig. 1-Fig. 3.
As shown in Figure 1-Figure 3, rotor core 10 includes equal the first iron core 110 and the second iron core 120 of axial length, the
One iron core 110, the first iron core 110 have the first centre bore 111 for wearing armature spindle, and circumferential along the first centre bore 111
Multiple first magnetic slots 112 of distribution, the first iron core 110 are equipped with multiple the first cage grooves being circumferentially evenly spaced on
113, each first cage grooves 113 are radially extended along the first iron core 110, the radial outer end of each first cage grooves 113 and its
Radial inner end is located on different radii line.
Second iron core 120 and the first iron core 110 are coaxially disposed, axial one end of the second iron core 120 and the first iron core 110
Axial one end fitting, the second iron core 120 had the second centre bore 121 for wearing armature spindle, and along the second centre bore 121 weeks
To multiple second magnetic slots 122 of distribution, the second iron core 120 is equipped with multiple the second cage grooves being circumferentially evenly spaced on
123, each second cage grooves 123 are radially extended along the second iron core 120, the radial outer end of each second cage grooves 123 and its
Radial inner end is located on different radii line.
First centre bore 111 and the second centre bore 121 are coaxially disposed, multiple first magnetic slots 112 and multiple second magnet steel
Slot 122 is arranged in a one-to-one correspondence, and it is same forever that the first magnetic slot 112 and the second magnetic slot 122 being each correspondingly arranged are suitable for grafting
Magnet 20.The outer peripheral surface of first cage grooves 113 of each of each first cage grooves 113 towards the first iron core 110 is equipped with the first slot
The outer peripheral surface of mouth 114, each second cage grooves 123 towards the second iron core 120 is equipped with the second notch 124, multiple first cage grooves
113 are arranged in a one-to-one correspondence with multiple second cage grooves 123, and each first notch 114 is with corresponding second notch 124 in the first iron
It is overlapped on the end face that core 110 and the second iron core 120 fit.
The angle of the radial direction for radially extending direction and the first iron core 110 of first cage grooves 113 is a1, the second mouse cage
The angle of the radial direction for radially extending direction and the second iron core 120 of slot 123 is a2, the number of the first cage grooves 113 and the
The number of two cage grooves 123 is equal and meets relational expression equal to M, a1 and a2: 0.5*360 °/M≤a1=a2≤1.5*360 °/M.
It as shown in fig. 4-5, include rotor core 10, armature spindle (figure according to the rotor of the utility model embodiment 1
It is not shown) and multiple permanent magnets 20, rotor core 10 is rotor core 10 above, and armature spindle is threaded through the first centre bore 111
In the second centre bore 121, each permanent magnet 20 is plugged in the first magnetic slot 112 and the second magnetic slot 122 being correspondingly arranged.
According to the rotor 1 of the utility model embodiment, turn due to reducing with previously described rotor core 10
Air gap harmonic wave between son and stator, so that the starting performance of motor is preferable, vibration and noise is all smaller.
According to the magneto of the utility model embodiment, including previously described rotor 1.
According to the magneto of the utility model embodiment, due to reducing rotor with previously described rotor 1
Air gap harmonic wave between stator, so that the starting performance of motor is preferable, vibration and noise is all smaller.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art
The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or
Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective
And modification, the scope of the utility model are defined by the claims and their equivalents.
Claims (9)
1. a kind of rotor core characterized by comprising
First iron core, first iron core have the first centre bore for wearing armature spindle, and along the first centre bore week
To multiple first magnetic slots of distribution, first iron core is equipped with multiple the first cage grooves being circumferentially evenly spaced on,
Each first cage grooves radially extending along first iron core, the radial outer end and its diameter of each first cage grooves
It is located on different radii line to inner end；
Second iron core, second iron core and first iron core are coaxially disposed, axial one end of second iron core with it is described
Axial one end of first iron core is bonded, and second iron core has the second centre bore for wearing the armature spindle, and along institute
Circumferentially distributed multiple second magnetic slots of the second centre bore are stated, second iron core is circumferentially evenly spaced on equipped with multiple
The second cage grooves, each second cage grooves radially extending along second iron core, each second cage grooves
Radial outer end and its radial inner end are located on different radii line；Wherein:
First centre bore and second centre bore are coaxially disposed, the multiple first magnetic slot and the multiple second magnetic
Steel tank is arranged in a one-to-one correspondence, and first magnetic slot being each correspondingly arranged and second magnetic slot are same forever suitable for grafting
Magnet.
2. rotor core according to claim 1, which is characterized in that the axial length of first iron core is equal to described the
The axial length of two iron cores.
3. rotor core according to claim 1, which is characterized in that each first cage grooves are towards first iron
The outer peripheral surface of core is equipped with the first notch, and the outer peripheral surface of each second cage grooves towards second iron core is equipped with the second slot
Mouthful, multiple first cage grooves are arranged in a one-to-one correspondence with multiple second cage grooves, each first notch with it is corresponding
Second notch be overlapped on the end face that first iron core and second iron core fit.
4. rotor core according to claim 3, which is characterized in that the radial outer end of each first cage grooves is opposite
Its radial inner end is along the circumferential offset of first iron core, and the radial outer end of each second cage grooves is with respect to its radial inner end
Along the circumferential offset of second iron core, the circumferential offset of first cage grooves and second cage grooves is contrary.
5. rotor core according to claim 4, which is characterized in that first cage grooves radially extend direction and institute
The angle for stating the radial direction of the first iron core is a1, the diameter for radially extending direction Yu second iron core of second cage grooves
It is that a2, a1 and a2 meet relational expression: a1=a2 to the angle in direction.
6. rotor core according to claim 4, which is characterized in that the number of first cage grooves and second mouse
The number of cage slot is equal and meets relational expression equal to M, a1 and a2: 0.5*360 °/M≤a1=a2≤1.5*360 °/M.
7. rotor core according to claim 1, which is characterized in that first iron core and second iron core are by more
A rotor punching superposition is stamped and formed out.
8. a kind of rotor characterized by comprising
Rotor core, the rotor core are according to rotor core of any of claims 1-7；
Armature spindle, the armature spindle are threaded through in first centre bore and the second centre bore；
Multiple permanent magnets, each permanent magnet are plugged on first magnetic slot and second magnetic slot being correspondingly arranged
It is interior.
9. a kind of magneto, which is characterized in that including rotor according to any one of claims 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821585951.XU CN208707402U (en) | 2018-09-27 | 2018-09-27 | Rotor core, rotor and the magneto with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821585951.XU CN208707402U (en) | 2018-09-27 | 2018-09-27 | Rotor core, rotor and the magneto with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208707402U true CN208707402U (en) | 2019-04-05 |
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ID=65947744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821585951.XU Active CN208707402U (en) | 2018-09-27 | 2018-09-27 | Rotor core, rotor and the magneto with it |
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| Country | Link |
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| CN (1) | CN208707402U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243967A (en) * | 2021-12-21 | 2022-03-25 | 珠海格力电器股份有限公司 | Rotor core, rotor subassembly and have its motor |
-
2018
- 2018-09-27 CN CN201821585951.XU patent/CN208707402U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243967A (en) * | 2021-12-21 | 2022-03-25 | 珠海格力电器股份有限公司 | Rotor core, rotor subassembly and have its motor |
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