A kind of rotor disk, rotor assembly and motor in axial magnetic field
Technical field
The present invention relates to technical field of motors, more specifically to a kind of rotor disk, rotor assembly and axial magnetic field electricity
Machine.
Background technique
Rotor disc structure is mostly that magnet steel is directly bonded on rotor disk, against magnetic attraction and magnet steel bottom surface and back iron contact surface
Bonding force fix, in motor runs at high speed, by ambient enviroment and mismachining tolerance itself, motor can generate vibration, therefore, electricity
Machine long-play will lead to magnet steel and fall off, to directly affect the service life of motor.In addition, magnet steel is viscous except bottom surface and back iron
Outside closing, proximal end face and distal face radially is also bonded with back iron, and this mode increases the assembly difficulty of magnet steel, and not readily removable
It unloads.
Summary of the invention
In view of this, the technical problem to be solved by the present invention is to how to prolong the service life, for this purpose, the present invention provides
A kind of rotor disk, rotor assembly and motor in axial magnetic field.
To achieve the above object, the invention provides the following technical scheme:
A kind of rotor disk, comprising:
Back iron;And
Multiple barrier steps on the back iron are set, form the bonding for pasting magnet steel between adjacent barrier step
Face.
In one embodiment of the invention, the edge of the back iron is provided with the end face Vertical Square with edge and the back iron
To the side wall of extension, the side wall can be abutted with the magnet steel.
In another embodiment of the present invention, side wall position corresponding with the bonding plane is provided with handling
Slot.
In yet another embodiment of the present invention, groove gap is additionally provided between the side wall and the barrier step.
In yet another embodiment of the present invention, counterweight tank is additionally provided in the middle part of the back iron.
In yet another embodiment of the present invention, the bottom of the counterweight tank is provided with lightening hole.
In yet another embodiment of the present invention, the area of section of the barrier step is from the middle part of the back iron to described
The edge of iron becomes larger.
In yet another embodiment of the present invention, multiple barrier steps are in tilted layout on the back iron.
The invention also discloses a kind of rotor assembly, including rotor disk as described in any one of the above embodiments, and are arranged described
Magnet steel on bonding plane.
The invention also discloses a kind of motor in axial magnetic field, including rotor assembly as described above.
It can be seen from the above technical scheme that multiple barrier steps are provided in rotor disk of the invention on back iron,
Magnet steel is bonded on bonding plane;Magnet steel can be carried out by setting barrier step circumferentially positioned.Compared with the prior art, it increases
Magnet steel it is circumferentially positioned, so as to improve the cohesive force of magnet steel, to extend service life.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of schematic perspective view of rotor disk provided by the embodiment of the present invention;
Fig. 2 is a kind of schematic cross-sectional view of rotor disk provided by the embodiment of the present invention;
Fig. 3 is a kind of rotor assembly schematic perspective view provided by the embodiment of the present invention;
In figure, 100 it is back iron, 200 is barrier step, 300 is bonding plane, 400 is side wall, 500 is handling slot, 600 is
Groove gap, 700 be counterweight tank, 701 be lightening hole, 800 be magnet steel.
Specific embodiment
Core of the invention is to provide a kind of rotor disk, rotor assembly and motor in axial magnetic field, to prolong the service life.
In addition, embodiments illustrated below does not play any restriction effect to the invention described in the claims content.In addition,
The full content of composition represented by following example is not limited to must as the solution of the invention described in the claims
It needs.
It please refers to Fig.1 to Fig.3, the rotor disk in the embodiment of the present invention, comprising:
Back iron 100;And
Multiple barrier steps 200 on back iron 100 are set, is formed between adjacent barrier step 200 and pastes magnet steel 800
Bonding plane 300.
Multiple barrier steps 200 are provided in rotor disk of the invention on back iron 100, magnet steel 800 is bonded in bonding plane
On 300;Magnet steel 800 can be carried out by setting barrier step 200 circumferentially positioned.Compared with the prior art, magnet steel 800 is increased
It is circumferentially positioned, so that the cohesive force of magnet steel 800 is improved, to extend service life.
In one embodiment of the invention, the edge of back iron 100 is provided with the end face vertical direction with edge and back iron 100
The side wall 400 of extension, side wall 400 can be abutted with magnet steel 800.By the way that side wall 400 is arranged, magnet steel 800 can pass through bonding plane
300, totally four faces are bonded the barrier step 200 and side wall 400 positioned at 800 two sides of magnet steel together, wherein are located at magnetic
The barrier step 200 of 800 two sides of steel can carry out circumferentially positioned, and side wall 400 is able to carry out radial positioning, from further improving
The cohesive force of magnet steel 800, extends service life.
In order to facilitate disassembly, the position corresponding with bonding plane 300 of side wall 400 is provided with handling slot 500.Pass through the handling
Slot 500 easily can be puted forth effort to support to provide in 800 cargo handling process of magnet steel, to achieve the purpose that easy to disassemble.
In yet another embodiment of the present invention, groove gap 600 is additionally provided between side wall 400 and barrier step 200.
It can be convenient the processing of barrier step 200 by the way that the groove gap 600 is arranged.
The middle part of back iron 100 is additionally provided with counterweight tank 700, in rotor disk rotation process, by adding in counterweight tank 700
Add balance mud, it is possible to reduce the amount of unbalance of rotor disk.
Further, in order to mitigate the quality of rotor disk, the bottom of counterweight tank 700 is provided with lightening hole 701.
The area of section of barrier step 200 becomes larger from the middle part of back iron 100 to the edge of iron;Multiple barrier steps
200 are in tilted layout on back iron 100.By the way that so set, can be adapted with oblique pole magnet steel 800, the specific rotor disk is formed
Skewed pole rotor disk.
The invention also discloses a kind of rotor assembly, the rotor disk including such as any of the above-described, and be arranged in bonding plane 300
On magnet steel 800.Since above-mentioned rotor disk has the above effect, the rotor assembly including above-mentioned rotor disk has corresponding effect
Fruit, details are not described herein again.
The invention also discloses a kind of motor in axial magnetic field, including such as above-mentioned rotor assembly.Due to above-mentioned rotor assembly
With the above effect, the motor in axial magnetic field including above-mentioned rotor assembly has corresponding effect, and details are not described herein again.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.