CN107453505A - Rotor assembly and there is its motor - Google Patents
Rotor assembly and there is its motor Download PDFInfo
- Publication number
- CN107453505A CN107453505A CN201710662861.XA CN201710662861A CN107453505A CN 107453505 A CN107453505 A CN 107453505A CN 201710662861 A CN201710662861 A CN 201710662861A CN 107453505 A CN107453505 A CN 107453505A
- Authority
- CN
- China
- Prior art keywords
- end cap
- seal
- rotating shaft
- waterproof case
- rotor assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/124—Sealing of shafts
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a kind of rotor assembly and there is its motor, rotor assembly includes：Rotating shaft；Rotor core；First end cap and the second end cap, first end cap and the second end cap are located at the axial both ends of rotor core respectively；First seal and second seal, the first seal is between rotating shaft and the first end cap, and the second seal is between rotating shaft and the second end cap；Waterproof case, it is enclosed on outside the waterproof case in rotating shaft, the axial both ends week of the waterproof case limits volume protected from water along rotating shaft extension is respectively facing between rotating shaft, and rotor core, the first end cap, the second end cap, first seal and second seal are respectively positioned in volume protected from water；Multiple magnetic shoes, the multiple magnetic shoe surrounding rotor iron core set and are enclosed on outside close on waterproof case.According to the rotor assembly of the present invention, there is good waterproof ability, rotor assembly can be placed in cooling medium such as water and run, effectively to be radiated to rotor assembly.
Description
Technical field
The present invention relates to technical field of motors, more particularly, to a kind of rotor assembly and has its motor.
Background technology
In correlation technique, when direct current brushless motor speed is higher, can cause the p-m rotor temperature of DC brushless motor compared with
Height, p-m rotor radiating is difficult, so as to influence the performance of DC brushless motor.And when DC brushless motor is in the larger ring of humidity
When being run in border, ferrite magnetic shoe has antirust function, and rotor core but gets rusty easily, if derusting can cause rotor card not in time
Extremely, coil is burnt.
The content of the invention
It is contemplated that at least solves one of technical problem present in prior art.Therefore, the present invention proposes a kind of turn
Sub-component, the rotor assembly have good waterproof ability, avoid rotor core from getting rusty.
The present invention also proposes a kind of motor with above-mentioned rotor assembly.
The rotor assembly of embodiment according to a first aspect of the present invention, including：Rotating shaft；Rotor core, the rotor core
Centre bore coordinates with the rotating shaft to drive the axis of rotation；First end cap and the second end cap, first end cap and described
Second end cap is located at the axial both ends of the rotor core respectively；First seal and second seal, the first seal
Between the rotating shaft and first end cap, the second seal is between the rotating shaft and second end cap；
Waterproof case, be enclosed in the rotating shaft outside the waterproof case, the axial both ends of the waterproof case be respectively facing the rotating shaft extension with
Volume protected from water, the rotor core, first end cap, second end cap, described first are limited between the rotating shaft
Seal and the second seal are respectively positioned in the volume protected from water；Multiple magnetic shoes, the multiple magnetic shoe is around the rotor
Iron core sets and is enclosed on outside close on the waterproof case.
Rotor assembly according to embodiments of the present invention, by setting waterproof case between rotor core and multiple magnetic shoes, and will
Rotor core, the first end cap, the second end cap, first seal and second seal, which are each provided between waterproof case and rotating shaft, to be limited
Volume protected from water in so that the moisture in environment cannot be introduced into volume protected from water, realize the good waterproof effect of rotor assembly,
And it is compact-sized, be easy to technique to manufacture, run so as to which rotor assembly is placed in cooling medium such as water, with to rotor set
Part is effectively radiated.
According to some embodiments of the present invention, the rotor assembly further comprises：Adapter sleeve, the adapter sleeve are closely outer
It is enclosed on the multiple magnetic shoe, further ensures the close connection between magnetic shoe and waterproof case.
According to some embodiments of the present invention, the periphery wall of the waterproof case be provided with it is multiple axially extend it is first convex
Muscle, each first convex tendon is folded between the two neighboring magnetic shoe, to limit multiple magnetic shoes in the circumference of waterproof case
Position.
According to some embodiments of the present invention, the periphery wall of axial one end of the waterproof case is provided with the second convex tendon, institute
Circumferentially extending of second convex tendon along the waterproof case is stated, the multiple magnetic shoe is only against on second convex tendon, multiple to limit
Position of the magnetic shoe in the axial direction of waterproof case.
According to some embodiments of the present invention, the external diameter of the external diameter of first end cap and second end cap is all higher than institute
The external diameter of rotor core is stated, further improves the waterproof ability of rotor assembly.
According to some embodiments of the present invention, between the end face of first end cap and the waterproof case, on one of them
Provided with it is first raised, on another formed with the first groove being adapted with first projection, so as to ensure that the first end cap
End face and waterproof case surface between sealing.
According to some embodiments of the present invention, between the end face of second end cap and the waterproof case, on one of them
Provided with it is second raised, on another formed with the second groove being adapted with second projection, so as to ensure that the second end cap
End face and waterproof case surface between sealing.
According to some embodiments of the present invention, first end cap forms first on the end face towards the rotor core
Holding tank, the rotating shaft pass through first holding tank, and the first seal is located in first holding tank and is enclosed on outside
In the rotating shaft；Second end cap forms the second holding tank on the end face towards the rotor core, and the rotating shaft passes through
Second holding tank, the second seal are located in second holding tank and are enclosed on outside in the rotating shaft, so as to convenient
First seal and second seal is spacing, installation.
According to some embodiments of the present invention, the inner peripheral surface and outer peripheral face of the first seal are all formed as corrugated surface,
Form multiple interior contact sites between the inner peripheral surface of the first seal and the rotating shaft, the outer peripheral face of the first seal with
Multiple outside contact parts are formed between first end cap, further ensure the sealing between rotating shaft and the first end cap.
According to some embodiments of the present invention, the inner peripheral surface and outer peripheral face of the second seal are all formed as corrugated surface,
Form multiple interior contact sites between the inner peripheral surface of the second seal and the rotating shaft, the outer peripheral face of the second seal with
Multiple outside contact parts are formed between second end cap, further ensure the sealing between rotating shaft and the second end cap.
According to some embodiments of the present invention, at least one be provided with first end cap and second end cap is determined
Position post, the rotor core is provided with the positioning hole for coordinating the locating dowel, with what is played to the first end cap and/or the second end cap
Spacing effect, in order to the assembling of waterproof case.
According to some embodiments of the present invention, the waterproof case is moulding, the rotor core, first end cap,
Second end cap, the first seal and the second seal are integrally plastic in the waterproof case, are further ensured that
The sealing of volume protected from water, improve the waterproof ability of rotor assembly.
The motor of embodiment according to a second aspect of the present invention, including：Stator；According to the above-mentioned first aspect embodiment of the present invention
Rotor assembly, the rotor assembly is rotatably arranged in the stator.
Motor according to embodiments of the present invention, by using above-mentioned rotor assembly, motor can be placed in cooling medium
Such as run in water so that cooling medium can be cooled down to motor especially rotor assembly, be cooled, to ensure that motor is long-term
Run well.
According to some embodiments of the present invention, the motor further comprises：Rolling bearing, the rotating shaft coordinate described
In rolling bearing, the inner ring of the rolling bearing stops the one end for being against the rotor assembly, the neighbouring rolling of the waterproof case
Formed with the 3rd groove, the 3rd groove is interior to be provided with pad for one end of dynamic bearing.
According to some embodiments of the present invention, the external diameter of the pad is more than or equal to the external diameter of the rolling bearing, so as to
Avoid and friction is produced between the outer ring of rolling bearing and waterproof case, play a part of protecting waterproof case.
According to some embodiments of the present invention, the pad is ceramic gasket so that pad has good wearability, resistance to
Corrosivity and heat endurance.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the explosive view of rotor assembly according to embodiments of the present invention；
Fig. 2 is the assembling schematic diagram of the rotor assembly shown in Fig. 1；
Fig. 3 is the side view of the waterproof case shown in Fig. 2；
Fig. 4 is the schematic diagram of the waterproof case shown in Fig. 3；
Fig. 5 is the partial schematic diagram of motor according to embodiments of the present invention
Fig. 6 is the partial sectional view of the motor shown in Fig. 5；
Fig. 7 is the sectional view of the waterproof case shown in Fig. 5.
Reference：
Motor 200, pad 101, rotor assembly 100,
Rotating shaft 1, rotor core 2, centre bore 20a, positioning hole 20b,
First end cap 3, the first groove 31, the first holding tank 32,
Second end cap 4, the second projection 41, the second holding tank 42, locating dowel 40,
First seal 5, second seal 6,
Waterproof case 7, the first convex tendon 71, the second convex tendon 72, the first projection 73, the second groove 74, the 3rd groove 75,
Magnetic shoe 8, adapter sleeve 9.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " transverse direction ", " length ", "front", "rear",
The orientation or position relationship of the instruction such as " interior ", " outer ", " axial direction ", " radial direction ", " circumference " are based on orientation shown in the drawings or position
Relation is put, it is of the invention necessary with simplified description, rather than the device or element of instruction or hint meaning to be for only for ease of description
With specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, limit
There is " first ", one or more this feature can be expressed or be implicitly included to the feature of " second ".In retouching for the present invention
In stating, unless otherwise indicated, " multiple " are meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Rotor assembly 100 according to embodiments of the present invention is described below with reference to Fig. 1-Fig. 7.
As shown in Fig. 1-Fig. 7, rotor assembly 100 according to embodiments of the present invention, including rotating shaft 1, rotor core 2, first
End cap 3, the second end cap 4, first seal 5, second seal 6 and, waterproof case 7 and multiple magnetic shoes 8.
Rotor core 2 can be generally formed into cylindrical structure, and rotating shaft 1 coordinates the centre bore in rotor core 2 from front to back
In 20a so that rotor core 2 can drive rotating shaft 1 to rotate.First end cap 3 and the second end cap 4 are respectively positioned at rotor core 2
Axial both ends, first seal 5 are located between the end cap 3 of rotating shaft 1 and first, between the end cap 3 of sealing pivot 1 and first between
Gap, second seal 6 are located between the end cap 4 of rotating shaft 1 and second, with the gap between the end cap 4 of sealing pivot 1 and second.Waterproof
It is enclosed in rotating shaft 1 outside part 7, the axial both ends of waterproof case 7 are respectively facing rotating shaft 1 and extended limits waterproof sky between rotating shaft 1
Between, rotor core 2, the first end cap 3, the second end cap 4, first seal 5 and second seal 6 are respectively positioned in volume protected from water, more
The individual surrounding rotor iron core 2 of magnetic shoe 8, which is set, and multiple magnetic shoes 8 are closely outer is enclosed on waterproof case 7.
For example, as shown in Fig. 1-Fig. 7, the first end cap 3 be located at the front end of rotor core 2 and the rear end face of the first end cap 3 with
The front end face of rotor core 2 is brought into close contact setting, and the second end cap 4 is located at the rear end of rotor core 2 and the front end of the second end cap 4
Face and the rear end face of rotor core 2 are brought into close contact setting.The edge of the rear and front end of waterproof case 7 is respectively facing the ecto-entad of rotating shaft 1
The periphery wall for extending to rotating shaft 1 limits the volume protected from water of closing, rotor core 2, first end between the periphery wall of rotating shaft 1
Lid 3, the second end cap 4, first seal 5 and second seal 6 can be filled in above-mentioned volume protected from water, so as to work as rotor core
2 when being placed in the larger environment of humidity in such as water, and the moisture in environment cannot be introduced into volume protected from water, avoid rotor core 2
Contact and get rusty with water, realize the good waterproof effect of rotor assembly 100, and it is compact-sized, be easy to technique to manufacture；Meanwhile
Because rotor assembly 100 has good waterproof ability, transported so as to which rotor assembly 100 is placed in cooling medium such as water
OK so that cooling medium can be cooled down to rotor assembly 100, be cooled, and realize the good radiating effect of rotor assembly 100
Fruit.When rotor assembly 100 is applied to motor 200, it is ensured that motor 200 runs well for a long time.Here, it is necessary to explanation
It is that direction " outer " refers to the direction of the central axis away from rotating shaft 1, its opposite direction is defined as " interior ".
Multiple magnetic shoes 8 are along the circumferentially disposed of rotor core 2, and multiple magnetic shoes 8 can substantially form tubular structure with close
It is enclosed on outside on the periphery wall of waterproof case 7.Specifically, magnetic shoe 8 can be bonded on the periphery wall of waterproof case 7 by seccotine, with
Further realize the close connection of magnetic shoe 8 and waterproof case 7.Wherein, permanent ferrite magnetic tile can be selected in magnetic shoe 8, has well
Temperature stability, and water resistance is good, avoids magnetic shoe 8 from getting rusty, and is further ensured that motor 200 runs well.
Rotor assembly 100 according to embodiments of the present invention, by setting waterproof case between rotor core 2 and multiple magnetic shoes 8
7, and rotor core 2, the first end cap 3, the second end cap 4, first seal 5 and second seal 6 are each provided at waterproof case 7 with turning
In the volume protected from water limited between axle 1 so that the moisture in environment cannot be introduced into volume protected from water, realize rotor assembly
100 good waterproof effects, and it is compact-sized, be easy to technique to manufacture, so as to which rotor assembly 100 is placed in into cooling medium example
As run in water, effectively to be radiated to rotor assembly 100.
As shown in Fig. 1-Fig. 7, rotor assembly 100 further comprises adapter sleeve 9, and adapter sleeve 9 is closely outer to be enclosed on multiple magnetic shoes 8
On so that the internal perisporium of multiple magnetic shoes 8 is fitted tightly on the periphery wall of waterproof case 7, when rotor assembly 100 runs at high speed,
Avoid magnetic shoe 8 from departing from waterproof case 7, play a part of loosening, reinforce, further ensure close between magnetic shoe 8 and waterproof case 7
Connection.
In the alternative embodiment of the present invention, the periphery wall of waterproof case 7 is provided with multiple the first convex tendons axially extended
71, each first convex tendon 71 is folded between two neighboring magnetic shoe 8.For example, in Fig. 1-Fig. 4 example, the periphery of waterproof case 7
Wall is provided with eight spaced first convex tendons 71, and each first convex tendon 71 is corresponding to be folded between two neighboring magnetic shoe 8
In fit, so as to limit position of multiple magnetic shoes 8 in the circumference of waterproof case 7, the rotation process of rotor assembly 100 is avoided
In, magnetic shoe 8 rotated in the circumference of waterproof case 7 relative to rotor core 2, so as to ensure that to a certain extent magnetic shoe 8 with it is anti-
Closely connected between water part 7.
Wherein, the axial length of the first convex tendon 71 can be set according to the actual requirements, for example, can be by the first convex tendon 71
Axial length is arranged to bigger 4mm~5mm than the axial length of magnetic shoe 8.
Alternatively, the periphery wall of axial one end of waterproof case 7 is provided with the second convex tendon 72, and the second convex tendon 72 is along waterproof case 7
Circumferentially extending, multiple magnetic shoes 8 only is against on the second convex tendon 72.For example, in Fig. 1-Fig. 4 example, the second convex tendon 72 is located at
The rear end of waterproof case 7, the second convex tendon 72 outwardly can be formed and the second convex tendon 72 can be with by the portion perimeter wall of waterproof case 7
For annular convex rib so that the rear end face of multiple magnetic shoes 8 only supports with the phase of the second convex tendon 72, so as to limit multiple magnetic shoes 8 in waterproof case 7
Axial direction on position, in order to which multiple magnetic shoes 8 are assembled on waterproof case 7, while avoid magnetic shoe 8 in the axial direction of waterproof case 7
On moved right relative to waterproof case 7 and depart from waterproof case 7, so as to ensure that to a certain extent between magnetic shoe 8 and waterproof case 7
Close connection.
It is understood that the second convex tendon 72 can also be circular arc convex tendon, or the second convex tendon 72 is included along waterproof case 7
Circumferentially spaced multiple second sub- convex tendons (not shown), can limit multiple magnetic shoes 8 in the axial direction of waterproof case 7
Position.
In a particular embodiment of the present invention, the external diameter of the external diameter of the first end cap 3 and the second end cap 4 is all higher than rotor core
2 external diameter.For example, as depicted in figs. 1 and 2, the outer peripheral face of the first end cap 3 and the second end cap 4 is all formed as circle, and first end
The external diameter of the external diameter of lid 3 and the second end cap 4 is all higher than the external diameter of rotor core 2, so as to by rotor core 2, the first end cap 3 and the
When two end caps 4 are attached to volume protected from water so that rotor core 2, the first end cap 3, outer peripheral face and the waterproof case 7 of the second end cap 4
Concavo-convex sealing is formed between inner peripheral surface, so as to further ensure waterproof case 7 and rotor core 2, the first end cap 3, the second end cap 4
Between sealing, improve the waterproof ability of rotor assembly 100.
In the alternative embodiment of the present invention, between the end face of the first end cap 3 and waterproof case 7, one of them is provided with the
One projection 73, on another formed with the first groove 31 being adapted with the first projection 73.Thus, by the first end cap 3
The first projection 73 being adapted and the first groove 31 are set between end face and waterproof case 7 so that the end face of the first end cap 3 and waterproof
Male-female seal contact face is formed between the surface of part 7, so as to further ensure the sealing of volume protected from water, improves rotor assembly
100 waterproof ability.
For example, in Fig. 1-Fig. 7 example, the first projection 73 is located at the front end of waterproof case 7, and the first projection 73 can be by
The part internal perisporium of waterproof case 7 protrudes to be formed backward, and the first projection 73 is annular protrusion.First groove 31 is located at the first end cap 3
Front end face on, and the first groove 31 can be backwardly recessed by the part front end face of the first end cap 3 and be formed, simple in construction, easy
Realize, and ensure that the sealing between the end face of the first end cap 3 and the surface of waterproof case 7.
Alternatively, between the end face of the second end cap 4 and waterproof case 7, one of them is provided with the second projection 41, on another
Formed with the second groove 74 being adapted with the second projection 41.Thus, by between the end face of the second end cap 4 and waterproof case 7
The second projection 41 being adapted and the second groove 74 are set so that are formed between the end face of the second end cap 4 and the surface of waterproof case 7
Male-female seal contact face, so as to further ensure the sealing of volume protected from water, improve the waterproof ability of rotor assembly 100.
For example, in Fig. 1-Fig. 7 example, the second projection 41 is located on the rear end face of the second end cap 4, and the second projection 41
It can be formed by the portion rear end of the second end cap 4 towards rear protrusion, the second projection 41 is annular protrusion.Second groove 74 is positioned at anti-
The rear end of water part 7, and the second groove 74 can be backwardly recessed by the part internal perisporium of waterproof case 7 and be formed, simple in construction, easy reality
It is existing, and ensure that the sealing between the end face of the second end cap 4 and the surface of waterproof case 7.
It is understood that the internal diameter of the first projection 73, the internal diameter of external diameter and the second projection 41, external diameter can be according to reality
Situation is arranged to identical or different, preferably to meet practical application.
Specifically, the first end cap 3 forms the first holding tank 32 on the end face towards rotor core 2, and rotating shaft 1 passes through first
Holding tank 32, first seal 5 are located in the first holding tank 32 and are enclosed on outside first seal 5 in rotating shaft 1.Second end cap 4 exists
The second holding tank 42 is formed on towards the end face of rotor core 2, rotating shaft 1 passes through the second holding tank 42, and second seal 6 is located at
It is enclosed in two holding tanks 42 and outside second seal 6 in rotating shaft 1.Thus, by setting the first holding tank 32 and the second holding tank
42, facilitate first seal 5 and second seal 6 it is spacing, installation.
For example, in Fig. 1-Fig. 7 example, rear open, the front closure of the first holding tank 32, first seal 5 are put
In cause the outer peripheral face of first seal 5 only to be supported with the inner peripheral surface of the first end cap 3 in the first holding tank 32, first seal 5
The outer peripheral face of inner peripheral surface and rotating shaft 1 only supports, so as to first seal 5 can with the gap between the end cap 3 of sealing pivot 1 and first,
Good sealing effect, while facilitate spacing, the installation of first seal 5.The front side of second holding tank 42 is opened wide, rear side closing,
Second seal 6 be placed in the second holding tank 42 cause the inner peripheral surface of the outer peripheral face of second seal 6 and the second end cap 4 stop support,
The inner peripheral surface of second seal 6 and the outer peripheral face of rotating shaft 1 only support, so as to which second seal 6 can be with the end cap of sealing pivot 1 and second
Gap between 4, good sealing effect, while facilitate spacing, the installation of second seal 6.
Further, the front end face of first seal 5 can only be supported with the front side wall of the first holding tank 32, first seal
5 rear end face can only support with the front end face of rotor core 2, good spacing so as to further be served to first seal 5
Effect, first seal 5 is avoided to depart from the first holding tank 32.The front end face of second seal 6 can be with the rear end of rotor core 2
Face is only supported, the rear end face of second seal 6 can only support with the rear wall of the second holding tank 42, so as to further be sealed to second
Part 6 serves good position-limiting action, avoids second seal 6 from departing from the second holding tank 42.
Certainly, the front side of the first holding tank 32 and rear side can be opened wide, and the front side of the second holding tank 42 and rear side can be with
Open wide, now the front end face of first seal 5 can only support with the internal face of waterproof case 7, and the rear end face of second seal 6 can
Only to be supported with the internal face of waterproof case 7, it can equally facilitate spacing, the installation of first seal 5 and second seal 6.
Alternatively, the inner peripheral surface of first seal 5 and outer peripheral face are all formed as corrugated surface, the inner peripheral surface of first seal 5
Multiple interior contact sites are formed between rotating shaft 1, multiple outer contactings are formed between the outer peripheral face of first seal 5 and the first end cap 3
Portion.For example, in the figure 2 example, the outer peripheral face of rotating shaft 1 is cylindrical shape face so that the inner peripheral surface of first seal 5 and rotating shaft 1
Between formed three interior contact sites, the inner peripheral surface of the first end cap 3 also be cylindrical shape face so that the outer peripheral face of first seal 5 and
Three outside contact parts are formed between first end cap 3, further ensure the sealing between the end cap 3 of rotating shaft 1 and first.Wherein,
Corrugated surface can be sinusoidal pattern corrugated surface, square wave type corrugated surface, zigzag corrugated surface etc., and not limited to this.
Certainly, the outer peripheral face of first seal 5 is also provided with spiral salient, can equally cause first seal 5
Formed between inner peripheral surface and rotating shaft 1 between multiple interior contact sites, the outer peripheral face of first seal 5 and the first end cap 3 formed it is multiple
Outside contact part, with the sealing being further ensured that between the end cap 3 of rotating shaft 1 and first.It is understood that first seal 5
Between inner peripheral surface and the outer peripheral face of rotating shaft 1, can be with shape between the inner peripheral surface of the outer peripheral face of first seal 5 and the first end cap 3
Sealed into bumps, equally further ensure the sealing between the end cap 3 of rotating shaft 1 and first, but not limited to this.
The inner peripheral surface and outer peripheral face of second seal 6 are all formed as corrugated surface, inner peripheral surface and the rotating shaft 1 of second seal 6
Between form multiple interior contact sites, form multiple outside contact parts between the outer peripheral face of second seal 6 and the second end cap 4.For example,
In the figure 2 example, the outer peripheral face of rotating shaft 1 is cylindrical shape face so that is formed between the inner peripheral surface of second seal 6 and rotating shaft 1
Three interior contact sites, the inner peripheral surface of the second end cap 4 is also cylindrical shape face so that the outer peripheral face of second seal 6 and the second end cap 4
Between formed three outside contact parts, further ensure the sealing between the end cap 4 of rotating shaft 1 and second.
Certainly, the outer peripheral face of second seal 6 is also provided with spiral salient, can equally cause second seal 6
Formed between inner peripheral surface and rotating shaft 1 between multiple interior contact sites, the outer peripheral face of second seal 6 and the second end cap 4 formed it is multiple
Outside contact part, with the sealing being further ensured that between the end cap 4 of rotating shaft 1 and second.It is understood that second seal 6
Between inner peripheral surface and the outer peripheral face of rotating shaft 1, can be with shape between the inner peripheral surface of the outer peripheral face of second seal 6 and the second end cap 4
Sealed into bumps, equally further ensure the sealing between the end cap 4 of rotating shaft 1 and second, but not limited to this.
In the alternative embodiment of the present invention, at least one in the first end cap 3 and the second end cap 4 is provided with locating dowel
40, rotor core 2 is provided with the positioning hole 20b for coordinating locating dowel 40.For example, in the example of fig. 1 and 2, the He of the first end cap 3
Be equipped with three locating dowels 40 on second end cap 4, three locating dowels 40 of the first end cap 3 be respectively positioned on the rear end of the first end cap 3 and
Extend back, three locating dowels 40 of the second end cap 4 are respectively positioned on the front end of the second end cap 4 and extended forward, positioning hole 20b can be with
For through the through hole of the front/rear end of rotor core 2 so that the locating dowel 40 of the first end cap 3 from front to back corresponding matching in positioning hole
In 20b, the locating dowel 40 of the second end cap 4 from back to front corresponding matching in positioning hole 20b.Thus, by locating dowel 40 with determining
Cooperation between the hole 20b of position, the spacing effect played to the first end cap 3 and the second end cap 4, in order to the assembling of waterproof case 7.
Certainly, positioning hole 20b may be formed as detent (not shown), i.e. detent can be by rotor core
2 part front end face is backwardly recessed to be formed, or recessed is forward formed by the portion rear end of rotor core 2.When rotor core 2
When front-end and back-end are each formed with detent, the detent of the front end of rotor core 2 and the detent of the rear end of rotor core 2
It can not correspond.Here, it is necessary to explanation, " one-to-ones corresponding " refer not only to the detent of the front end of rotor core 2 with
The correspondence of the detent of the rear end of rotor core 2 quantitatively, and refer to the detent and rotor core of the front end of rotor core 2
The positioning of the correspondence of the detent of 2 rear ends in position, the i.e. detent of the front end of rotor core 2 and the rear end of rotor core 2
Groove can not be coaxially disposed.
Specifically, waterproof case 7 is moulding, rotor core 2, the first end cap 3, the second end cap 4, first seal 5 and
The one of two seal 6 is plastic in waterproof case 7, can be first by rotating shaft 1, rotor core 2, the first end cap 3, the second end cap 4, first
Seal 5 and second seal 6 are assembled into an entirety, by Shooting Technique by rotor core 2, the first end cap 3 and the second end
The outer surface of lid 4 wraps up, to ensure that rotor core 2, the first end cap 3, the second end cap 4, first seal 5 and second seal
Part 6 is fitted snugly between waterproof case 7 and rotating shaft 1 in the volume protected from water limited, so as to further ensure volume protected from water
Sealing, improve the waterproof ability of rotor assembly 100.Wherein, used by waterproof case 7, the first end cap 3 and the second end cap 4
Plastics can be with identical, can also be different.
The motor 200 of embodiment according to a second aspect of the present invention, including stator and real according to the above-mentioned first aspect of the present invention
The rotor assembly 100 of example is applied, rotor assembly 100 is rotatably arranged in stator.
Motor 200 according to embodiments of the present invention, by using above-mentioned rotor assembly 100, motor 200 can be placed in
Being run in cooling medium such as water so that cooling medium can be cooled down to the especially rotor assembly 100 of motor 200, be cooled,
To ensure that motor 200 runs well for a long time.
In further embodiment of the present invention, motor 200 further comprises rolling bearing (not shown), and rotating shaft 1 is matched somebody with somebody
Close in rolling bearing, the inner ring of rolling bearing stops the one end for being against rotor assembly 100, the neighbouring rolling bearing of waterproof case 7
One end is provided with pad 101 formed with the 3rd groove 75 in the 3rd groove 75.
Specifically, the external diameter of pad 101 is more than or equal to the external diameter of rolling bearing.Run in motor 200,2 turns of rotor core
In dynamic process, rotor assembly 100 rolls relative to the outer ring rotating of rolling bearing because the external diameter of pad 101 is more than or equal to
The external diameter of bearing, and the front end for being against rotor assembly 100 is stopped in the outer ring of rolling bearing so that pad 101 is outer with rolling bearing
Friction is produced between circle, friction is produced between the outer ring of rolling bearing and waterproof case 7 so as to avoid, plays protection waterproof case 7
Effect.Here, it is necessary to which explanation, " external diameter of rolling bearing " refers to the external diameter of the outer ring of rolling bearing.
It is understood that when the external diameter of pad 101 is more than or equal to the external diameter of rolling bearing, the front end face of pad 101
Can be concordant with the front end face of waterproof case 7 or not concordant.
Alternatively, pad 101 is ceramic gasket 101 so that pad 101 has good wearability, corrosion resistance and heat
Stability.
Other of motor 200 according to embodiments of the present invention are formed and operated for those of ordinary skills
All it is known, is not detailed herein.
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 to combine specific features, the knot that the embodiment or example describe
Structure, material or feature are contained at least one embodiment or example of the present invention.In this manual, to above-mentioned term
Schematic representation is not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can combine in an appropriate manner in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (16)
- A kind of 1. rotor assembly, it is characterised in that including：Rotating shaft；Rotor core, the centre bore of the rotor core coordinate with the rotating shaft to drive the axis of rotation；First end cap and the second end cap, first end cap and second end cap are respectively positioned at the axial direction two of the rotor core End；First seal and second seal, the first seal are described between the rotating shaft and first end cap Second seal is between the rotating shaft and second end cap；Waterproof case, the waterproof case are enclosed in the rotating shaft outside, and the axial both ends of the waterproof case are respectively facing the rotating shaft and prolonged Stretch and volume protected from water is limited between the rotating shaft, it is the rotor core, first end cap, second end cap, described First seal and the second seal are respectively positioned in the volume protected from water；Multiple magnetic shoes, the multiple magnetic shoe surround the rotor core and set and be enclosed on outside close on the waterproof case.
- 2. rotor assembly according to claim 1, it is characterised in that further comprise：Adapter sleeve, the adapter sleeve is closely outer to be enclosed on the multiple magnetic shoe.
- 3. rotor assembly according to claim 1, it is characterised in that the periphery wall of the waterproof case is provided with multiple along axle To the first convex tendon of extension, each first convex tendon is folded between the two neighboring magnetic shoe.
- 4. rotor assembly according to claim 1, it is characterised in that set on the periphery wall of axial one end of the waterproof case There are the second convex tendon, circumferentially extending of second convex tendon along the waterproof case, the multiple magnetic shoe is only against second convex tendon On.
- 5. rotor assembly according to claim 1, it is characterised in that the external diameter of first end cap and second end cap External diameter be all higher than the external diameter of the rotor core.
- 6. rotor assembly according to claim 1, it is characterised in that the end face of first end cap and the waterproof case it Between, one of them be provided with it is first raised, on another formed with the first groove being adapted with first projection.
- 7. rotor assembly according to claim 1, it is characterised in that the end face of second end cap and the waterproof case it Between, one of them be provided with it is second raised, on another formed with the second groove being adapted with second projection.
- 8. rotor assembly according to claim 1, it is characterised in that first end cap is towards the rotor core The first holding tank is formed on end face, the rotating shaft passes through first holding tank, and the first seal is located at described first and held Receive in groove and be enclosed on outside in the rotating shaft；Second end cap forms the second holding tank on the end face towards the rotor core, and the rotating shaft passes through described second Holding tank, the second seal are located in second holding tank and are enclosed on outside in the rotating shaft.
- 9. rotor assembly according to claim 1, it is characterised in that the inner peripheral surface and outer peripheral face of the first seal are equal Be formed as corrugated surface, multiple interior contact sites are formed between the inner peripheral surface of the first seal and the rotating shaft, described first is close Multiple outside contact parts are formed between the outer peripheral face of sealing and first end cap.
- 10. rotor assembly according to claim 1, it is characterised in that the inner peripheral surface and outer peripheral face of the second seal Corrugated surface is all formed as, forms multiple interior contact sites between the inner peripheral surface of the second seal and the rotating shaft, described second Multiple outside contact parts are formed between the outer peripheral face of seal and second end cap.
- 11. rotor assembly according to claim 1, it is characterised in that in first end cap and second end cap At least one to be provided with locating dowel, the rotor core is provided with the positioning hole for coordinating the locating dowel.
- 12. according to the rotor assembly any one of claim 1-11, it is characterised in that the waterproof case is moulding, The rotor core, first end cap, second end cap, the first seal and the second seal are integrally plastic In the waterproof case.
- A kind of 13. motor, it is characterised in that including：Stator；According to the rotor assembly any one of claim 1-12, the rotor assembly is rotatably arranged at the stator It is interior.
- 14. motor according to claim 13, it is characterised in that further comprise：Rolling bearing, the rotating shaft coordinate in the rolling bearing, and the inner ring of the rolling bearing is only against the rotor set One end of part, one end of the neighbouring rolling bearing of the waterproof case are provided with the 3rd groove formed with the 3rd groove Pad.
- 15. motor according to claim 14, it is characterised in that the external diameter of the pad is more than or equal to the rolling bearing External diameter.
- 16. motor according to claim 14, it is characterised in that the pad is ceramic gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710662861.XA CN107453505B (en) | 2017-08-04 | 2017-08-04 | Rotor assembly and motor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710662861.XA CN107453505B (en) | 2017-08-04 | 2017-08-04 | Rotor assembly and motor with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107453505A true CN107453505A (en) | 2017-12-08 |
| CN107453505B CN107453505B (en) | 2023-09-29 |
Family
ID=60490813
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710662861.XA Active CN107453505B (en) | 2017-08-04 | 2017-08-04 | Rotor assembly and motor with same |
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| Country | Link |
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| CN (1) | CN107453505B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539933A (en) * | 2018-06-06 | 2018-09-14 | 深圳市道通智能航空技术有限公司 | Motor, power plant and unmanned vehicle |
| CN111868355A (en) * | 2017-12-18 | 2020-10-30 | 舍弗勒技术股份两合公司 | Camshaft phase adjusting device |
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| CN2854906Y (en) * | 2005-11-16 | 2007-01-03 | 南京雨沛电子有限公司 | High water-proof submersible pump rotor |
| CN1983774A (en) * | 2005-11-18 | 2007-06-20 | 阿斯克尔控股责任有限公司 | Permanent-magnet rotor of synchronous motor and manufacturing method thereof |
| KR20080020138A (en) * | 2006-08-30 | 2008-03-05 | 엘지전자 주식회사 | Waterproofing structure for outer rotor type fan-motor |
| CN201388093Y (en) * | 2009-03-24 | 2010-01-20 | 广东威灵电机制造有限公司 | Permanent magnet rotor for motor |
| JP2013059526A (en) * | 2011-09-14 | 2013-04-04 | Panasonic Corp | Brushless motor for washing machine |
| CN203387314U (en) * | 2013-07-30 | 2014-01-08 | 中山大洋电机制造有限公司 | Motor rotor structure |
| CN207039323U (en) * | 2017-08-04 | 2018-02-23 | 佛山市威灵洗涤电机制造有限公司 | Rotor assembly and there is its motor |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2854906Y (en) * | 2005-11-16 | 2007-01-03 | 南京雨沛电子有限公司 | High water-proof submersible pump rotor |
| CN1983774A (en) * | 2005-11-18 | 2007-06-20 | 阿斯克尔控股责任有限公司 | Permanent-magnet rotor of synchronous motor and manufacturing method thereof |
| KR20080020138A (en) * | 2006-08-30 | 2008-03-05 | 엘지전자 주식회사 | Waterproofing structure for outer rotor type fan-motor |
| CN201388093Y (en) * | 2009-03-24 | 2010-01-20 | 广东威灵电机制造有限公司 | Permanent magnet rotor for motor |
| JP2013059526A (en) * | 2011-09-14 | 2013-04-04 | Panasonic Corp | Brushless motor for washing machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111868355A (en) * | 2017-12-18 | 2020-10-30 | 舍弗勒技术股份两合公司 | Camshaft phase adjusting device |
| CN108539933A (en) * | 2018-06-06 | 2018-09-14 | 深圳市道通智能航空技术有限公司 | Motor, power plant and unmanned vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107453505B (en) | 2023-09-29 |
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