CN107834723A - A kind of New-type electric machine - Google Patents
A kind of New-type electric machine Download PDFInfo
- Publication number
- CN107834723A CN107834723A CN201711219895.8A CN201711219895A CN107834723A CN 107834723 A CN107834723 A CN 107834723A CN 201711219895 A CN201711219895 A CN 201711219895A CN 107834723 A CN107834723 A CN 107834723A
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- Prior art keywords
- stator
- salient pole
- rotor
- electric machine
- new
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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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- 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
- H02K1/14—Stator cores with salient poles
-
- 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
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- 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
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
-
- 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
- H02K1/26—Rotor cores with slots for windings
- H02K1/265—Shape, form or location of the slots
-
- 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
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
- H02K1/325—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium between salient poles
-
- 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
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a kind of New-type electric machine.The New-type electric machine includes stator module, rotor assembly, drive end bearing bracket and rear end cap, and stator module is fixed between drive end bearing bracket and rear end cap；Stator module includes stator core and stator winding；Salient pole in even number stator is evenly distributed with stator core；Stator winding is concentratred winding structure, and stator winding is wound in stator on salient pole；The end of salient pole is provided with extension in stator, and salient pole forms T-shaped in extension and stator, and extension is the transverse part of T-shaped, the vertical part of stator convex extremely T-shaped；Rotor assembly includes rotor core and motor shaft, and rotor core is provided with center through hole, and rotor core is fixed on motor shaft by center through hole；Rotor core is outwardly to be provided with the outer salient pole of multiple rotors, and barrier component is equipped between the end of the outer salient pole of two rotors of arbitrary neighborhood；Multiple air vents are equipped with drive end bearing bracket and rear end cap.The present invention can reduce windmill loss and reduce noise.
Description
Technical field
The present invention relates to technical field of motors, more particularly to a kind of switched reluctance machines.
Background technology
With the development of Power Electronic Technique, microelectric technique and control theory, the application of switched reluctance machines just becomes
It is more and more extensive, especially in the case of rare earth permanent-magnetic material price acutely concussion, without using the switching magnetic-resistance electricity of permanent magnet
Machine becomes to get most of the attention.Conventional switched reluctance motor is double-salient-pole structure, and rotor is made by oOrdinary silicon steel sheet laminated, rotor
On both without permanent magnet or without winding, only centralized winding on stator, its self-induction can change and change with rotor-position, but mutual inductance
Do not change with rotor-position and change.Switched reluctance machines change by self-induction and produced according to " magnetic resistance is minimum " operation principle
Reluctance torque driving rotor.Switched reluctance machines possess be simple to manufacture, cost is low, firm in structure, fault freedom is good, is easy to scattered
The advantages that hot, suitable high-speed cruising, in the fields such as industrial drives, electrical speed regulation, electric automobile, household electrical appliance, textile machine
Have shown that powerful competitiveness and wide application prospect.
Switched reluctance machines produce driving torque work using magnetic resistance change rate.Make magnetic circuit when rotor attempts to rotate to
During the position that magnetic resistance minimizes and energized stator winding is inductive maximizing, reluctance motor will produce torque.Due to switch
The rotor with salient pole structure of reluctance motor, can groove between rotor with salient pole produce air-flow agitation, thus windmill loss increase and
Electric efficiency is reduced, and noise can be caused to increase.
The content of the invention
, can it is an object of the invention to provide a kind of New-type electric machine that can be improved electric efficiency and can effectively reduce noise
To solve one or more of above-mentioned prior art problem.
According to an aspect of the invention, there is provided a kind of New-type electric machine, including stator module, rotor assembly, drive end bearing bracket
And rear end cap, stator module are fixed between drive end bearing bracket and rear end cap；
Stator module includes the stator core and stator winding of hollow column；
It is evenly distributed with salient pole in even number stator on stator core, between salient pole is stator slot in adjacent two stator；
Stator winding is concentratred winding structure, and stator winding is wound in stator on salient pole；
The end of salient pole is provided with extension in stator, and salient pole forms T-shaped in extension and stator, and extension is the horizontal stroke of T-shaped
Portion, the vertical part of stator convex extremely T-shaped；
Rotor assembly includes rotor core and motor shaft, and rotor core is provided with center through hole, and rotor core passes through center
Through hole is fixed on motor shaft；
Rotor core is outwardly to be provided with the outer salient pole of multiple rotors, between the end of the outer salient pole of two rotors of arbitrary neighborhood
Provided with barrier component；
Multiple air vents are equipped with drive end bearing bracket and rear end cap.
The beneficial effects of the present invention are：The present invention can be reduced by the end set extension of the salient pole in stator
Caused radial load is significantly mutated and produces torque pulse before and after salient pole overlaps in the outer salient pole of rotor and stator, so as to reduce noise
Generation.By setting barrier component between salient pole outside adjacent rotor, shape between the outer salient pole of adjacent rotor can be closed
Into rotor slot, to prevent air-flow from entering rotor slot, so as to reduce windmill loss, and can effectively reduce noise.In addition,
The present invention in time can be shed heat caused by motor internal by being respectively provided with air vent on drive end bearing bracket and rear end cap,
So as to improve the resistance to elevated temperatures of motor.
In some embodiments, barrier component is the radially-inwardly recessed arc along rotor core.Thus, it is possible to can
In order to the processing of barrier component, process is saved.
In some embodiments, for the direction of rotation of rotor assembly, the leading section of the outer salient pole of rotor is with after
End is circular arc or eccentric arc.Further, the radius of curvature of the leading section of the outer salient pole of rotor is less than or equal to rearward end
Radius of curvature.Thus, such a design, can be in the case where reducing torque pulsation, influence torque as small as possible output.
In some embodiments, stator module also includes annular circulating cooling pipe, and the bottom of stator slot is axially square
To arc-shaped groove is equipped with, annular circulating cooling pipe is successively set in each arc-shaped groove.Thus, by stator core
It is interior that annular circulating cooling pipe is set, it can make it that the cooling effect of whole motor is more preferable, the temperature rise of motor is lower, motor radiating effect
Fruit greatly reinforces, so as to further improve electric efficiency.
In some embodiments, dustproof filter screen is equipped with air vent.Thus, by setting dust-proof filter on air vent
Net, it can prevent the impurity such as external dust, particulate matter from entering motor, so as to extend motor service life.
In some embodiments, the inner surface of drive end bearing bracket and rear end cap is coated with sound deadening coating.Thus, by preceding
Coating sound-absorbing material, can advantageously reduce noise in end cap and rear end cap.
In some embodiments, rotor core is provided with multiple thermal vias.Thus, by being set on rotor core
Multiple thermal vias, the heat dispersion of rotor assembly can be increased.
In some embodiments, the outer projection of four stators is uniformly provided with the outer circumference surface of stator core.Thus, pass through
Stator outer projection is set on stator core, can be in order to stator module be fixed between drive end bearing bracket and rear end cap.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the New-type electric machine of an embodiment of the present invention；
Fig. 2 is the structural representation stator assembly and rotor assembly in New-type electric machine shown in Fig. 1；
Fig. 3 is the partial enlarged drawing of the end construction of the outer salient pole of rotor of the rotor assembly in New-type electric machine shown in Fig. 2.
Embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
Fig. 1 to Fig. 3 schematically shows the New-type electric machine according to one embodiment of the present invention.As illustrated, should
New-type electric machine includes stator module 1, rotor assembly 2, drive end bearing bracket 3 and rear end cap 4, and stator module 1 is fixed on drive end bearing bracket 3 and rear end
Between lid 4.
Wherein, multiple air vents 5 are equipped with drive end bearing bracket 3 and rear end cap 4.Thus, by drive end bearing bracket 3 and rear end cap 4
On be respectively provided with air vent 5, heat caused by motor internal can be shed in time, so as to improve the heat-resisting quantity of motor
Energy.
Dustproof filter screen 51 can be provided with air vent 5.Thus, by setting dustproof filter screen 51 on air vent 5, can prevent
The impurity such as external dust, particulate matter enter motor, so as to extend motor service life.
In order to reduce caused noise in motor, the inner surface of drive end bearing bracket 3 and rear end cap 4 is coated with sound deadening coating.By
This, by the coating sound-absorbing material in drive end bearing bracket 3 and rear end cap 4, can advantageously reduce noise.
Stator module 1 includes the stator core 11 and stator winding 12 of hollow column, is uniformly distributed on stator core 11
There is a salient pole 111 in even number stator, between salient pole 111 be stator slot 112 in adjacent two stator, stator winding 12 is concentratred winding
Structure, stator winding 12 are wound in stator on salient pole 111.The motor provided in present embodiment is by the phase group of A, B, C, D, E five
Into stator winding 12 includes A phase winding 12A, B phase winding 12B, C phase winding 12C, D phase winding 12D and E phase winding 12E, A phases
Winding 12A, B phase winding 12B, C phase winding 12C, D phase winding 12D and E phase winding 12E is successively set on each of stator core 11
In individual stator on salient pole 111.A phase winding 12A, B phase winding 12B, C phase winding 12C, D phase winding 12D and E phase windings 12E has
Two coils, two coils of each phase winding are respectively separated in four stators is arranged on each of stator core 11 after salient pole 111
In corresponding stator on salient pole 111, two coils of each phase winding are sequentially connected in series together.A phase windings 12A has A1, A2 two
Individual coil, B phase windings 12B have two coils of B1, B2, and C phase windings 12C has two coils of C1, C2, and D phase windings 12D has D1, D2
Two coils, E phase windings 12E have two coils of E1, E2.
The end of salient pole 111 is equipped with extension 113 in stator, and the minimum range between two adjacent extensions 113 is small
Minimum range between salient pole 111 in two adjacent stators, salient pole 111 forms T-shaped, extension in extension 113 and stator
113 be the transverse part of T-shaped, and salient pole 111 is the vertical part of T-shaped in stator.Thus, expanded by the end set of the salient pole 111 in stator
Exhibition portion 113, can reduce salient pole 111 in the outer salient pole 211 of rotor and stator overlap it is front and rear caused by radial load be significantly mutated and produce
Raw torque pulse, so as to reduce the generation of noise.
In order to further improve the radiating effect of New-type electric machine provided by the invention, stator module 1 also includes annular circulation
Cooling tube, the bottom of stator slot 112 are axially equipped with arc-shaped groove 114, and annular circulating cooling pipe is set gradually
In each arc-shaped groove 114, rear end cap 4 is provided with the water inlet tube head 61 for supplying annular circulating cooling pipe and water outlet tube head 62 is distinguished
That stretches out enters the mouth of pipe and outlet spout.Thus, by setting annular circulating cooling pipe in stator core 11, whole electricity can be caused
The cooling effect of machine is more preferable, and the temperature rise of motor is lower, and motor radiating effect greatly reinforces, so as to further improve motor effect
Rate.
Rotor assembly 2 includes rotor core 21 and motor shaft 22, and rotor core 21 is provided with center through hole, rotor core 21
It is fixed on by center through hole on motor shaft 22, rotor core 21 is outwardly to be provided with the outer salient pole 211 of multiple rotors, arbitrary neighborhood
The outer salient pole 211 of two rotors end between be equipped with barrier component 212.Thus, by outside adjacent rotor salient pole 211 it
Between barrier component 212 is set, the rotor slot 213 formed between the outer salient pole 211 of adjacent rotor can be closed, to prevent air-flow from entering
Enter rotor slot 213, so as to reduce windmill loss, and can effectively reduce noise.
For the ease of assembling, the outer projection 13 of four stators is uniformly provided with the outer circumference surface of stator core 11.Thus, pass through
Stator outer projection 13 is set on stator core 11, can be in order to stator module 1 be fixed between drive end bearing bracket 3 and rear end cap 4.
Barrier component 212 can be the radially-inwardly recessed arc along rotor core 21, and the diameter of barrier component 212 is basic
To be less than rotor core 21 along two relative arc most the distance between concave points of rotor core 21, the diameter of barrier component 212
Diameter.
Further, for the direction of rotation of rotor assembly 2, the outer salient pole 211 of rotor has the He of leading section 2111
Rearward end 2112, the leading section 2111 of the outer salient pole 211 of rotor and rearward end 2112 are circular arc or eccentric arc.Thus, pass through
The leading section 2111 of salient pole outside rotor 211 and rearward end 2112 are both designed as arc, the torque pulsation of motor can be reduced.
Further, the radius of curvature of the leading section 2111 of the outer salient pole 211 of rotor is less than or equal to rearward end 2112
Radius of curvature.Thus, such a design, can be in the case where reducing torque pulsation, influence torque as small as possible output.
As a preferred embodiment, rotor core 21 is provided with multiple thermal vias 214, one end and front end of thermal vias 214
The inner side openend connection of lid 3, the other end connect with the inner side openend of rear end cap 4.Thus, by being set on rotor core 21
Multiple thermal vias 214 are put, the heat dispersion of rotor assembly 2 can be increased.
New-type electric machine provided by the invention has long lifespan, electricity than traditional threephase asynchronous machine economize on electricity about 20%-50%
The machine life-span was not required to safeguard up to more than 10 years.The electric current of this motor is more steady simultaneously, can be with the absence of high current situation
Effectively protection battery, can extend battery more than 1 year.This New-type electric machine can be used on electric automobile, have low startup
Electric current, high start torque, the few power consumption of frequent start-stop, can be with frequent start-stop, frequent rotating the advantages that can climbing for a long time
1000 times/hour, starting current are only specified 30%, and less than specified 2%, starting torque can reach specified no-load current
3-5 times.The power factor of motor provided by the invention is higher, and unloaded and full-load power factor can reach more than 0.95, no
Need soft start and reactive-load compensation.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.
Claims (9)
1. a kind of New-type electric machine, it is characterised in that including stator module (1), rotor assembly (2), drive end bearing bracket (3) and rear end cap
(4), the stator module (1) is fixed between the drive end bearing bracket (3) and the rear end cap (4)；
The stator module (1) includes the stator core (11) and stator winding (12) of hollow column；
It is evenly distributed with salient pole (111) in even number stator on the stator core (11), salient pole in adjacent two stator
(111) it is stator slot (112) between；
The stator winding (12) is concentratred winding structure, and the stator winding (12) is wound in salient pole (111) in the stator
On；
The end of salient pole (111) is provided with extension (113) in the stator, salient pole in the extension (113) and the stator
(111) T-shaped is formed, the extension (113) is the transverse part of the T-shaped, and salient pole (111) is the perpendicular of the T-shaped in the stator
Portion；
The rotor assembly (2) includes rotor core (21) and motor shaft (22), and it is logical that the rotor core (21) is provided with center
Hole, the rotor core (21) are fixed on the motor shaft (22) by the center through hole；
The rotor core (21) is outwardly to be provided with the outer salient pole (211) of multiple rotors, the two rotor evaginations of arbitrary neighborhood
Barrier component (212) is equipped between the end of pole (211)；
Multiple air vents (5) are equipped with the drive end bearing bracket (3) and the rear end cap (4).
2. New-type electric machine according to claim 1, it is characterised in that the barrier component (212) is along the rotor iron
The radially-inwardly recessed arc of core (21).
3. New-type electric machine according to claim 2, it is characterised in that relative to the direction of rotation of the rotor assembly (2)
For, the leading section (2111) of the outer salient pole (211) of the rotor and rearward end (2112) they are circular arc or eccentric arc.
4. New-type electric machine according to claim 3, it is characterised in that the leading section of the outer salient pole (211) of the rotor
(2111) radius of curvature is less than or equal to the radius of curvature of rearward end (2112).
5. New-type electric machine according to claim 1, it is characterised in that it is cold that the stator module (1) also includes annular circulation
But manage, the bottom of the stator slot (112) is axially equipped with arc-shaped groove (114), the annular circulating cooling
Pipe is successively set in each arc-shaped groove (114).
6. New-type electric machine according to claim 1, it is characterised in that be equipped with dustproof filter screen on the air vent (5)
(51)。
7. New-type electric machine according to claim 1, it is characterised in that the drive end bearing bracket (3) and the rear end cap (4) it is interior
Surface is coated with sound deadening coating.
8. New-type electric machine according to claim 1, it is characterised in that it is logical that the rotor core (21) is provided with multiple radiatings
Hole (214).
9. New-type electric machine according to any one of claim 1 to 8, it is characterised in that outside the stator core (11)
The outer projection (13) of four stators is uniformly provided with periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711219895.8A CN107834723A (en) | 2017-11-28 | 2017-11-28 | A kind of New-type electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711219895.8A CN107834723A (en) | 2017-11-28 | 2017-11-28 | A kind of New-type electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107834723A true CN107834723A (en) | 2018-03-23 |
Family
ID=61646318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711219895.8A Pending CN107834723A (en) | 2017-11-28 | 2017-11-28 | A kind of New-type electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107834723A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111835123A (en) * | 2019-04-17 | 2020-10-27 | 南京德朔实业有限公司 | Motor and electric tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120134879A (en) * | 2011-06-03 | 2012-12-12 | 삼성전기주식회사 | Switched reluctance motor |
| CN103986255A (en) * | 2013-02-07 | 2014-08-13 | 艾默生环境优化技术(苏州)有限公司 | Switched reluctance motor and rotor thereof |
| CN104600944A (en) * | 2014-06-23 | 2015-05-06 | 深圳市乐丰科技有限公司 | Permanent magnet switch reluctance machine and a stator assembly thereof |
| CN105099115A (en) * | 2015-09-08 | 2015-11-25 | 顾志强 | Switched reluctance motor with axial distribution phase equal-pole structure |
| CN206164324U (en) * | 2016-11-11 | 2017-05-10 | 合肥德通电驱动***有限公司 | High temperature resistant switched reluctance motor of low noise |
| CN207518368U (en) * | 2017-11-28 | 2018-06-19 | 广州驰裕网络科技有限公司 | A kind of New-type electric machine |
-
2017
- 2017-11-28 CN CN201711219895.8A patent/CN107834723A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120134879A (en) * | 2011-06-03 | 2012-12-12 | 삼성전기주식회사 | Switched reluctance motor |
| CN103986255A (en) * | 2013-02-07 | 2014-08-13 | 艾默生环境优化技术(苏州)有限公司 | Switched reluctance motor and rotor thereof |
| CN104600944A (en) * | 2014-06-23 | 2015-05-06 | 深圳市乐丰科技有限公司 | Permanent magnet switch reluctance machine and a stator assembly thereof |
| CN105099115A (en) * | 2015-09-08 | 2015-11-25 | 顾志强 | Switched reluctance motor with axial distribution phase equal-pole structure |
| CN206164324U (en) * | 2016-11-11 | 2017-05-10 | 合肥德通电驱动***有限公司 | High temperature resistant switched reluctance motor of low noise |
| CN207518368U (en) * | 2017-11-28 | 2018-06-19 | 广州驰裕网络科技有限公司 | A kind of New-type electric machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111835123A (en) * | 2019-04-17 | 2020-10-27 | 南京德朔实业有限公司 | Motor and electric tool |
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