CN110165856A - A kind of novel brushless disk motor - Google Patents
A kind of novel brushless disk motor Download PDFInfo
- Publication number
- CN110165856A CN110165856A CN201910490188.5A CN201910490188A CN110165856A CN 110165856 A CN110165856 A CN 110165856A CN 201910490188 A CN201910490188 A CN 201910490188A CN 110165856 A CN110165856 A CN 110165856A
- Authority
- CN
- China
- Prior art keywords
- stator disc
- bearing
- disk
- rotor disk
- rotor
- 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.)
- Pending
Links
- 230000001788 irregular Effects 0.000 claims abstract description 7
- 238000005516 engineering process Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 6
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 5
- 238000004512 die casting Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 7
- 239000000243 solution Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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
- H02K1/12—Stationary parts of the magnetic circuit
-
- 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
- H02K1/2793—Rotors axially facing stators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/04—Machines with one rotor and two stators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a kind of novel brushless disk motors, including shaft, bearing, stator disc, coil, permanent magnet and rotor disk, brshless DC motor includes inside and outside two sets of stators, two sets of stators use different slot numbers, inside and outside two sets of stators share a set of rotor, the annular protrusions at the stator plate central position are combined with shaft, the size of the central circular of the stator disc and rotor disk is directly and bearing fit, the irregular wrapping post of protrusion that the stator disc lower end surface has inside and outside two circle to be spaced apart, the rotor disk center is circular ring structure, and extend rotor disk upper surface, the rotor disk central circular inner headed face and shaft are fitted close, the present invention relates to DC motor technology fields.Wire casing design on stator disc is changed to the irregular raised wrapping post of inside and outside two circle, increases winding space, same height can accommodate the thicker enameled wire of line footpath and more the number of turns, and copper wastage reduces, and efficiency improves by the novel brushless disk motor.
Description
Technical field
The present invention relates to DC motor technology field, specially a kind of novel brushless disk motor.
Background technique
For disc type electric machine due to being designed using axial magnetic field, stator and rotor are all disc structure, and have biggish radial dimension
With lesser axial dimension, rotary inertia is big, runs smoothly.Compared to conventional radial magnetic field electric motor, short with axial dimension,
Feature small in size, light-weight, power density is high.While in order to improve the utilization rate of permanent-magnet material, Halbach times are mostly used greatly
It arranges to improve the service efficiency of magnetic material.Disc type electric machine is widely used in the driving motor of transporting equipment and private dress system, has wide
Wealthy market application prospect, how to improve the efficiency of disc type electric machine is that the technology that those skilled in the art extremely pay attention to always is asked
Topic.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, it the present invention provides a kind of novel brushless disk motor, solves and how to improve disk
The efficiency of formula motor, the problem of improving the utilization rate of permanent-magnet material.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of novel brushless disk motor, packet
Shaft, bearing, stator disc, coil, permanent magnet and rotor disk are included, brshless DC motor includes inside and outside two sets of stators, two sets of stators
Using different slot numbers, inside and outside two sets of stators share a set of rotor, the annular protrusions and shaft at the stator plate central position
The size of the central circular of combination, the stator disc and rotor disk is directly and bearing fit, the stator disc lower end surface have inside and outside
The irregular wrapping post of protrusion that two circles are spaced apart, the rotor disk center is circular ring structure, and extends rotor disk upper surface,
The rotor disk central circular inner headed face and shaft are fitted close, and the sectional area of inside and outside wrapping post cuts on the stator disc for outer layer
Area is greater than internal layer, and the stator disc is internally provided with stator core.
Preferably, the wrapping post on the stator disc is designed as multilayer, design in the middle part of the stator plate central circle ring inner wall
One small stair.
Preferably, the material of the stator core uses SMC material or other powdery type materials.
Preferably, the stator disc uses powder metallurgical technique/method, using powder injection molding MIM process/method, use
Die-casting process/method is made using any one process/method in overmold Shooting Technique/method.
Preferably, the bearing is using any one bearing in oiliness bearing, ball bearing or fluid bearing.
Preferably, the permanent magnet uses sintered NdFeB magnet, bonded neodymium-iron-boron magnet, ferrite lattice, injecting magnetic
Or any one in rubber magnet, the arrangement mode of the permanent magnet use Halbach array.
Preferably, rotor inside the rotor disk using it is conventional magnetize or halback magnetizes any one, it is described
Be equipped with groove in the middle part of shaft, groove both ends respectively with rotor disk and bearing secure fit.
(3) beneficial effect
The present invention provides a kind of novel brushless disk motors.Have it is following the utility model has the advantages that
(1), the novel brushless disk motor, by the wire casing design on stator disc be changed to the inside and outside irregular protrusion of two circles around
Terminal increases winding space, and same height can accommodate the thicker enameled wire of line footpath and more the number of turns, copper wastage subtract
Small, efficiency improves.
(2), the novel brushless disk motor, irregularly raised wrapping post, foundation reasonably calculate stator disc Internal and external cycle,
Different quantity and sectional area and angle are designed, cogging torque can be effectively reduced, reduces vibration and the noise of motor, it can be with
Realize higher control precision
(3), the novel brushless disk motor, permanent magnet arrangement use Halbach array, and the magnetic field strength of air gap side is big
Amplitude is promoted, and can effectively reduce the volume of motor in this way, promotes the power density of motor, air-gap field Sine distribution degree compared with
Height, harmonic content is small, can further decrease cogging torque.
Detailed description of the invention
Fig. 1 is disc type electric machine cross-sectional view provided in an embodiment of the present invention；
Fig. 2 is disc type electric machine exploded isometric figure provided in an embodiment of the present invention；
Fig. 3 is field frame assembly exploded isometric figure provided in an embodiment of the present invention；
Fig. 4 is stator disc perspective view provided in an embodiment of the present invention；
Fig. 5 is rotor assembly exploded isometric figure provided in an embodiment of the present invention.
In figure: 1 shaft, 2 bearings, 3 stator discs, 4 coils, 5 permanent magnets, 6 rotor disks.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-5 is please referred to, the present invention provides a kind of technical solution: a kind of novel brushless disk motor, including shaft 1, axis
2, stator disc 3, coil 4, permanent magnet 5 and rotor disk 6 are held, brshless DC motor includes inside and outside two sets of stators, and two sets of stators use
Different slot numbers, inside and outside two sets of stators share a set of rotor, and the annular protrusions in 3 centre of stator disc are combined with shaft 1, fixed
The size of sub-disk 3 and the central circular of rotor disk 6 directly cooperates with bearing 2, and 3 lower end surface of stator disc has inside and outside two circle to be spaced apart
The irregular wrapping post of protrusion, 6 center of rotor disk is circular ring structure, and extends rotor disk upper surface, 6 central circular of rotor disk
Inner headed face and shaft are fitted close, and the sectional area of inside and outside wrapping post is that outer layer sectional area is greater than internal layer, stator disc 3 on stator disc 3
It is internally provided with stator core, the sectional area of inside and outside wrapping post can be adjusted according to reasonable ratio on stator disc 3, and not only be limited
Outer layer sectional area in the embodiment of the present invention is greater than internal layer.
Wrapping post on stator disc 3 is designed as multilayer, designs a small stair, coiling in the middle part of 3 central circular inner wall of stator disc
Column may be designed as multilayer, the double-layer structure being not limited in the embodiment of the present invention.
The material of stator core uses SMC material or other powdery type materials.
Stator disc 3 using powder metallurgical technique/method, using powder injection molding MIM process/method, using die-casting process/side
Method is made using any one process/method in overmold Shooting Technique/method.
Bearing 2 is using any one bearing in oiliness bearing, ball bearing or fluid bearing.
Permanent magnet 5 is using sintered NdFeB magnet, bonded neodymium-iron-boron magnet, ferrite lattice, injecting magnetic or rubber magnet
In any one, the arrangement mode of permanent magnet 5 uses Halbach array.
Rotor inside rotor disk 6 using it is conventional magnetize or halback magnetizes any one, be equipped in the middle part of shaft 1
Groove, groove both ends respectively with 2 secure fit of rotor disk 6 and bearing.
As shown in Figure 1 and Figure 2, disc type electric machine of embodiment of the present invention structure includes shaft 1, bearing 2, stator disc 3, coil 4,
Permanent magnet 5, rotor disk 6.
As shown in figure 3, field frame assembly structure includes bearing 2, stator disc 3, coil 4.Bearing 2 is from 3 central circular of stator disc
Both ends indentation, can be in one step of annulus medium design, fixed bearings at both ends does not collide and rubs, and reduces unnecessary
Mechanical loss.It is inside and outside two layers that coil 4, which divides, and ectonexine is combined together using different winding modes.
As shown in figure 4, the irregular wrapping post on stator disc of the embodiment of the present invention 3 is divided into inside and outside two layers, wrapping post is surrounded
Stator plate central is rounded to be uniformly distributed.Outer layer wrapping post quantity and sectional area are greater than internal layer, and two layers of wrapping post is taken certain inclined
Angle is interspersed, and can effectively reduce cogging torque, improves electric efficiency.
As shown in figure 5, rotor assembly structure includes rotor disk 6 and permanent magnet 5, wherein permanent magnet 5 is in tile-type, mirror image ruler
Very little the sum of the radial dimension slightly larger than the ectonexine wrapping post on stator disc 3.The annulus protrusion and permanent magnet 5 at 6 edge of rotor disk
End be fitted close, can effectively prevent rotor during rotation permanent magnet occur positional shift, guarantee the reliable of motor
Property.
Rotor assembly and shaft 1 are fitted close by groove one end in shaft 1.In the groove other end and field frame assembly
Bearing 2 is fitted close, and by adjusting recess width or can be increased gasket and is controlled size of gaps.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions.By sentence " element limited including one ..., it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element ".
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of novel brushless disk motor, including shaft (1), bearing (2), stator disc (3), coil (4), permanent magnet (5) and
Rotor disk (6), it is characterised in that: brshless DC motor includes inside and outside two sets of stators, and two sets of stators use different slot numbers, inside and outside
Two sets of stators share a set of rotor, and the annular protrusions in stator disc (3) centre are combined with shaft (1), the stator
The size of the central circular of disk (3) and rotor disk (6) directly cooperates with bearing (2), and stator disc (3) lower end surface has inside and outside two
The irregular wrapping post of protrusion being spaced apart is enclosed, rotor disk (6) center is circular ring structure, and extends rotor disk upper end
Face, rotor disk (6) the central circular inner headed face and shaft are fitted close, the section of inside and outside wrapping post on the stator disc (3)
Product is that outer layer sectional area is greater than internal layer, and the stator disc (3) is internally provided with stator core.
2. a kind of novel brushless disk motor according to claim 1, it is characterised in that: on the stator disc (3) around
Terminal is designed as multilayer, designs a small stair in the middle part of stator disc (3) the central circular inner wall.
3. a kind of novel brushless disk motor according to claim 3, it is characterised in that: the material of the stator core is adopted
With SMC material or other powdery type materials.
4. a kind of novel brushless disk motor according to claim 1, it is characterised in that: the stator disc (3) uses powder
Last metallurgical technology/method is infused using powder injection molding MIM process/method, using die-casting process/method or using overmold
Any one process/method moulded in process/method is made.
5. a kind of novel brushless disk motor according to claim 1, it is characterised in that: the bearing (2) uses oil-containing
Any one bearing in bearing, ball bearing or fluid bearing.
6. a kind of novel brushless disk motor according to claim 1, it is characterised in that: the permanent magnet (5) is using burning
Tie any one in ndfeb magnet, bonded neodymium-iron-boron magnet, ferrite lattice, injecting magnetic or rubber magnet, the permanent magnetism
The arrangement mode of body (5) uses Halbach array.
7. a kind of novel brushless disk motor according to claim 1, it is characterised in that: rotor disk (6) inside
Rotor using it is conventional magnetize or halback magnetizes any one, groove, groove both ends point are equipped in the middle part of the shaft (1)
Not with rotor disk (6) and bearing (2) secure fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910490188.5A CN110165856A (en) | 2019-06-06 | 2019-06-06 | A kind of novel brushless disk motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910490188.5A CN110165856A (en) | 2019-06-06 | 2019-06-06 | A kind of novel brushless disk motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110165856A true CN110165856A (en) | 2019-08-23 |
Family
ID=67627628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910490188.5A Pending CN110165856A (en) | 2019-06-06 | 2019-06-06 | A kind of novel brushless disk motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110165856A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004140937A (en) * | 2002-10-18 | 2004-05-13 | Fujitsu General Ltd | Axial gap type motor |
| JP2005110372A (en) * | 2003-09-29 | 2005-04-21 | Aisin Seiki Co Ltd | Axial gap motor |
| CN103490578A (en) * | 2013-10-12 | 2014-01-01 | 山东理工大学 | Axial magnetic field permanent-magnet generator for automobile |
| CN103812245A (en) * | 2012-11-09 | 2014-05-21 | 财团法人工业技术研究院 | Axial magnetic flux magnetic collection rotor structure |
| CN210093086U (en) * | 2019-06-06 | 2020-02-18 | 深圳市恒驱电机股份有限公司 | Novel brushless disk type motor |
-
2019
- 2019-06-06 CN CN201910490188.5A patent/CN110165856A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004140937A (en) * | 2002-10-18 | 2004-05-13 | Fujitsu General Ltd | Axial gap type motor |
| JP2005110372A (en) * | 2003-09-29 | 2005-04-21 | Aisin Seiki Co Ltd | Axial gap motor |
| CN103812245A (en) * | 2012-11-09 | 2014-05-21 | 财团法人工业技术研究院 | Axial magnetic flux magnetic collection rotor structure |
| CN103490578A (en) * | 2013-10-12 | 2014-01-01 | 山东理工大学 | Axial magnetic field permanent-magnet generator for automobile |
| CN210093086U (en) * | 2019-06-06 | 2020-02-18 | 深圳市恒驱电机股份有限公司 | Novel brushless disk type motor |
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