CN108631534A - A kind of axial magnetic flow switch reluctance motor reducing noise - Google Patents
A kind of axial magnetic flow switch reluctance motor reducing noise Download PDFInfo
- Publication number
- CN108631534A CN108631534A CN201810320637.7A CN201810320637A CN108631534A CN 108631534 A CN108631534 A CN 108631534A CN 201810320637 A CN201810320637 A CN 201810320637A CN 108631534 A CN108631534 A CN 108631534A
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- China
- Prior art keywords
- piecemeal
- rotor
- stator
- shaped
- axial
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- 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
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
-
- 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
- H02K1/141—Stator cores with salient poles consisting of C-shaped cores
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/02—Synchronous motors
- H02K19/10—Synchronous motors for multi-phase current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Abstract
The present invention discloses a kind of axial magnetic flow switch reluctance motor that can reduce noise, and stator is by the equally distributed N of circumferencial direction outside shaftsA C-shaped stator piecemeal composition, the axial cross section of each C-shaped stator piecemeal is in the C-shaped being open towards shaft, the inner space of each C-shaped stator piecemeal forms a stator slot, is wound with winding on each stator tooth, rotor is by the equally distributed N of circumferencial direction outside shaftrA rotor piecemeal composition, NrA rotor piecemeal is fixedly connected with the non-magnetic rotor fixing device of a circular ring shape, and non-magnetic rotor fixing device fixing sleeve passes outwards through c-shaped opening and enter in stator slot radially outside shaft；There are axial air-gap between the both ends of the surface of both ends of the surface and c-shaped opening in the axial direction of rotor piecemeal in the axial direction, the internal-and external diameter of each rotor piecemeal is respectively correspondingly equal to the internal-and external diameter of c-shaped opening；Radial load is not generated between stator and rotor, axial force is cancelled out each other, and vibrating noise when motor operation is reduced.
Description
Technical field
The invention belongs to technical field of motors, specially a kind of axial magnetic flow switch reluctance motor that can reduce noise.
Background technology
Motor is the key position in electric vehicle, when operation should have safe and reliable, high efficiency, low speed high torque,
The characteristics of low noise.Switched reluctance machines are gradually answered because of the advantages such as its is simple in structure, flexible, the efficient, fault-tolerant ability of control is strong
For in electric vehicle.Torque pulsation is big in the process of running for traditional switched reluctance machines, and a phase winding excitation is produced when being powered
Raw prodigious radial load, makes motor case generate moderate finite deformation, in turn results in larger vibration noise.
China Patent Publication No. is CN101557153A, entitled " the modular stator-sectional rotor switched magnetic resistance of E shapes is electric
A kind of switched reluctance machines being made of E shapes modular stator and segmented rotor are disclosed in machine " document, magnetic circuit is relatively independent,
Resistance is small when high-speed cruising.China Patent Publication No. be CN2857322Y, it is entitled " reduce noise and torque pulsation switch magnetic
A kind of switched reluctance machines of cascade structure are proposed in resistance motor " document, are axially sequentially arranged multiple single-phase reluctance motors, often
A motor is staggered identical angle, and total number of phases is to constitute motor sum, which drops to a certain degree in axial dispersion radial load
Low noise.China Patent Publication No. is CN205509741U, a kind of entitled " tandem type axial excitation switched reluctance machines knot
Using cascade form and by U-shaped stator shaft orientation excitation in structure " document, disperse shell radial direction deformation to a certain extent, mitigation is shaken
It is dynamic, reduce noise.Motor is only relatively reduced and there is common be disadvantageous in that in art solutions disclosed above
Radial load does not eliminate the radial load of regular tap reluctance motor, therefore effectiveness in vibration suppression unobvious thoroughly.
Invention content
The purpose of the invention is to overcome the shortcomings of that existing regular tap reluctance motor vibrating noise is big, it is proposed that one
Kind can eliminate motor radial load and reduce the axial magnetic flow switch reluctance motor of noise.
To achieve the goals above, the present invention specifically uses following scheme：The present invention shaft outside be coaxially cased with stator and
Rotor, stator is by the equally distributed N of circumferencial direction outside shaftsA C-shaped stator piecemeal composition, each C-shaped stator piecemeal
Axial cross section is C-shaped, and c-shaped opening forms a stator slot, stator slot towards shaft, the inner space of each C-shaped stator piecemeal
Axial both sides be two stator tooths, winding is wound on each stator tooth, rotor is uniformly divided by the circumferencial direction outside shaft
The N of clothrA rotor piecemeal composition, NrA rotor piecemeal is fixedly connected with the non-magnetic rotor fixing device of a circular ring shape, non-magnetic
For rotor fixing device fixing sleeve outside shaft, non-magnetic rotor fixing device passes outwards through N radiallysA C-shaped stator piecemeal
C-shaped opening enter in stator slot.
Further, there are axis between the both ends of the surface of both ends of the surface and c-shaped opening in the axial direction of rotor piecemeal in the axial direction
To air gap, the outer diameter of each rotor piecemeal is equal to the outer diameter of c-shaped opening, internal diameter is equal to the internal diameter of c-shaped opening.
Further, NsAnd NrRelationship meets：LCM(Ns,Nr)=mNrLCM is to take least common multiple, number of motor phases m.
Further, rotor piecemeal and the equal length of non-magnetic rotor fixing device 3 in the axial direction, in the axial direction two
End face is concordant.
The beneficial effects of the invention are as follows：
1, motor magnetic loop of the present invention is predominantly axially distributed, and radial load is not generated between stator and rotor, while axial
Power is cancelled out each other, therefore electric machine casing deformation is small, reduces vibrating noise when motor operation.
2, the magnetic loop of motor of the present invention only stator poles Jing Guo itself excitation, not by other stator poles, therefore it is each
Magnetic circuit is independent, without mutual inductance.
3, all components in the present invention are all cellular construction, including C-shaped stator piecemeal and rotor piecemeal, and fault-tolerance is high.
4, the rotor piecemeal in the present invention is small, saves motor inner space.
5, the magnetic circuit of motor of the present invention is short, effectively reduces core loss, improves electric efficiency.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and detailed description.
Fig. 1 is the stereogram of stator and rotor structure arrangement in the present invention；
Fig. 2 is the axial sectional view of the present invention；
Fig. 3 is the radial cutaway view of the present invention；
Fig. 4 is the structure chart of C-shaped stator piecemeal and winding in Fig. 2；
Magnetic flux path figure when motor is located at maximum induction position when Fig. 5 is present invention work；
In figure：1, stator；1-1, stator slot；1-2, stator tooth；1-3, stator yoke；1-4, c-shaped opening；2, rotor；3、
Non-magnetic rotor fixing device；4, winding；5, electric machine casing；6, baffle ring；7, shaft.
Specific implementation mode
Referring to Fig. 1, Fig. 2 and Fig. 3, the present invention includes shaft 7, stator 1, rotor 2 and winding 4.Most intermediate is shaft 7, is turned
It is coaxially cased with stator 1 and rotor 2 outside axis 7.Wherein, stator 1 is by NsA C-shaped stator piecemeal composition, NsA C-shaped stator piecemeal edge turns
Circumferencial direction outside axis 7 is uniformly distributed, and the angle between two neighboring C-shaped stator piecemeal is 360/NsDegree, each C-shaped divided stator
The axial cross section of block is C-shaped, and c-shaped opening is towards inner end, towards shaft 7.Each C-shaped stator piecemeal by silicon steel plate stacking and
At.
Referring to Fig. 4, the width of C-shaped stator piecemeal each section is equal.The inner space of each C-shaped stator piecemeal forms one
The axial both sides of a stator slot 1-1, stator slot 1-1 are to be wound with winding 4 on two stator tooths 1-2, each stator tooth 1-2.It is fixed
It is stator yoke 1-3 on the outside of pilot trench 1-1, is not c-shaped opening 1-4 on the inside of winding 4, stator slot 1-1 on stator yoke 1-3.
Referring to Fig. 2 and Fig. 3, rotor 2 is by NrA rotor piecemeal composition, NrCircumferencial direction of a rotor piecemeal outside shaft 7 is equal
Even distribution, the angle between two neighboring rotor piecemeal is 360/NrDegree.The axial cross section and radial section of each rotor piecemeal
It is all rectangular.Each rotor piecemeal is formed by silicon steel plate stacking.
NrA rotor piecemeal is fixedly connected on jointly on the non-magnetic rotor fixing device 3 of a circular ring shape, non-magnetic turn
3 fixing sleeve of sub- fixing device drives N outside shaft 7rA rotor piecemeal and 7 coaxial rotating of shaft.Non-magnetic rotor fixing device
3 pass outwards through N radiallysThe c-shaped opening 1-4 of a C-shaped stator piecemeal, into NsIn the stator slot 1-1 of a C-shaped stator piecemeal
Portion, and the outer diameter of non-magnetic rotor fixing device 3 is less than the outer diameter of stator slot 1-1, is not interfered with C-shaped stator piecemeal.
The internal-and external diameter of each rotor piecemeal is respectively correspondingly equal to the internal-and external diameter of c-shaped opening, the outer diameter of each rotor piecemeal
Equal to the outer diameter of c-shaped opening 1-4, that is, it is equal to the internal diameter of stator slot 1-1, the internal diameter of each rotor piecemeal is equal to c-shaped opening 1-4's
Internal diameter is equal to the internal diameter of rotor piecemeal.The length of rotor piecemeal in the axial direction is less than the length of c-shaped opening 1-4 in the axial direction.
The length of rotor piecemeal in the axial direction be equal to the length of non-magnetic rotor fixing device 3 in the axial direction, and rotor piecemeal with it is non-
The both ends of the surface of magnetic conduction rotor fixing device 3 in the axial direction are concordant with the both ends of the surface of non-magnetic rotor fixing device 3 in the axial direction.Turn
There are axial air-gaps between the both ends of the surface of both ends of the surface and c-shaped opening 1-4 in the axial direction of sub-piecemeal in the axial direction.As a result, when turn
When son 2 rotates, rotor 2 passes through the space of c-shaped opening 1-4, becomes the part rotational trajectory space of rotor 2 at c-shaped opening 1-4.
Non-magnetic rotor fixing device 3 is made of non-magnet material, and rotor piecemeal is installed with non-magnetic rotor fixing device 3
When, process N on the annulus of non-magnetic rotor fixing device 3rA axial direction rectangular through-hole is used for fixed rotor piecemeal, an axial direction
It is tightly fastened in rectangular through-hole embedding there are one rotor piecemeal.
The number N of C-shaped stator piecemealsWith the number N of rotor piecemealrRelationship meets：LCM(Ns,Nr)=mNrLCM is to take most
Small common multiple, number of motor phases m.
NsFor a equal fixing sleeve of C-shaped stator piecemeal inside motor case 5, the outer diameter of C-shaped stator piecemeal is equal to motor case 5
Internal diameter, be tightly fastened with motor case 5.Motor case 5 is made of non-magnet material, and inner wall is along the circumferential direction uniformly processed
NrA slot is used for NsA C-shaped stator piecemeal.
In NsThe axial direction of a C-shaped stator piecemeal is respectively mounted baffle ring 6, and baffle ring 6 can determine stator 1 in axial position
Position.
Winding 4 on two diametrically opposite C-shaped stator piecemeals constitutes a phase, two C-shaped stator piecemeals per phase
Winding 4 on stator tooth 1-2 is connected in parallel, and the arrangement form of the winding 4 per phase is identical.When work, lead to successively per phase winding 4
Electricity drives the rotation of rotor piecemeal, rotor piecemeal that non-magnetic rotor fixing device 3 is driven to rotate according to minimum reluctance principle, due to
Non-magnetic rotor fixing device 3 is tightly fastened with shaft 7, and then shaft 7 is driven to rotate.
When certain 4 excitation of phase winding, magnetic loop is shown in Figure 5：Axial side stator tooth 1-2, side axial air-gap, turn
Sub-piecemeal, other side axial air-gap, axial direction other side stator tooth 1-2, stator yoke 1-3, axial direction side stator poles 1-2.Winding 4
The magnetic flux generated that is powered predominantly axially is distributed, and radial load is not generated between C-shaped stator piecemeal and rotor piecemeal, meanwhile, it is axial
Power is cancelled out each other, therefore the deformation very little of motor everywhere, to reduce vibration noise.
With regular tap reluctance motor magnetic loop the difference is that, the present invention it is shown in Fig. 5 shown in magnetic loop only
By the stator poles of itself excitation, without other stator poles, therefore each magnetic circuit is independent, without mutual inductance.
Claims (7)
1. a kind of axial magnetic flow switch reluctance motor reducing noise, shaft (7) are coaxially cased with stator (1) and rotor (2) outside,
It is characterized in：Stator (1) is by the equally distributed N of circumferencial direction along shaft (7) outsidesA C-shaped stator piecemeal composition, each C-shaped are fixed
The axial cross section of sub-piecemeal is C-shaped, and c-shaped opening (1-4) forms one towards shaft (7), the inner space of each C-shaped stator piecemeal
The axial both sides of a stator slot (1-1), stator slot (1-1) are two stator tooths (1-2), are wound on each stator tooth (1-2)
Winding (4), rotor (2) is by the equally distributed N of circumferencial direction along shaft (7) outsiderA rotor piecemeal composition, NrA rotor piecemeal
It is fixedly connected with the non-magnetic rotor fixing device (3) of a circular ring shape, non-magnetic rotor fixing device (3) fixing sleeve is in shaft
(7) outside, non-magnetic rotor fixing device (3) passes outwards through N radiallysThe c-shaped opening (1-4) of a C-shaped stator piecemeal enters
In stator slot (1-1).
2. a kind of axial magnetic flow switch reluctance motor reducing noise according to claim 1, it is characterized in that：Rotor piecemeal
There are axial air-gap between the both ends of the surface of both ends of the surface and c-shaped opening (1-4) in the axial direction in the axial direction, each rotor piecemeal
Outer diameter is equal to the outer diameter of c-shaped opening (1-4), internal diameter is equal to the internal diameter of c-shaped opening (1-4).
3. a kind of axial magnetic flow switch reluctance motor reducing noise according to claim 1, it is characterized in that：NsAnd NrIt closes
System meets：LCM(Ns,Nr)=mNrLCM is to take least common multiple, number of motor phases m.
4. a kind of axial magnetic flow switch reluctance motor reducing noise according to claim 1, it is characterized in that：Rotor piecemeal
It is concordant with the equal length of non-magnetic rotor fixing device (3) in the axial direction, both ends of the surface in the axial direction.
5. a kind of axial magnetic flow switch reluctance motor reducing noise according to claim 1, it is characterized in that：NsA C-shaped is fixed
The equal fixing sleeve of sub-piecemeal is internal in motor case (5), NsThe axial direction of a C-shaped stator piecemeal is respectively arranged with baffle ring (6).
6. a kind of axial magnetic flow switch reluctance motor reducing noise according to claim 1, it is characterized in that：Radially phase
To two C-shaped stator piecemeals on winding (4) constitute a phase, the winding (4) per phase is in parallel.
7. a kind of axial magnetic flow switch reluctance motor reducing noise according to claim 1, it is characterized in that：Each rotor
The axial cross section and radial section of piecemeal are all rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810320637.7A CN108631534A (en) | 2018-04-08 | 2018-04-08 | A kind of axial magnetic flow switch reluctance motor reducing noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810320637.7A CN108631534A (en) | 2018-04-08 | 2018-04-08 | A kind of axial magnetic flow switch reluctance motor reducing noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108631534A true CN108631534A (en) | 2018-10-09 |
Family
ID=63704947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810320637.7A Pending CN108631534A (en) | 2018-04-08 | 2018-04-08 | A kind of axial magnetic flow switch reluctance motor reducing noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108631534A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106696A (en) * | 2019-12-06 | 2020-05-05 | 广东沃顿科技有限公司 | Longitudinal mixed reluctance motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967270A (en) * | 2015-06-26 | 2015-10-07 | 南京航空航天大学 | Magnetism gathering passive rotor transverse magnetic flux single-phase motor |
| CN205791829U (en) * | 2016-04-28 | 2016-12-07 | 周欢 | The stator poles of a kind of switched reluctance machines and rotor pole structure |
| JP2017051023A (en) * | 2015-09-03 | 2017-03-09 | 新日鐵住金株式会社 | Rotary electric machine |
-
2018
- 2018-04-08 CN CN201810320637.7A patent/CN108631534A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967270A (en) * | 2015-06-26 | 2015-10-07 | 南京航空航天大学 | Magnetism gathering passive rotor transverse magnetic flux single-phase motor |
| JP2017051023A (en) * | 2015-09-03 | 2017-03-09 | 新日鐵住金株式会社 | Rotary electric machine |
| CN205791829U (en) * | 2016-04-28 | 2016-12-07 | 周欢 | The stator poles of a kind of switched reluctance machines and rotor pole structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106696A (en) * | 2019-12-06 | 2020-05-05 | 广东沃顿科技有限公司 | Longitudinal mixed reluctance motor |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181009 |