CN107332390A - A kind of high-speed electric expreess locomotive structure - Google Patents
A kind of high-speed electric expreess locomotive structure Download PDFInfo
- Publication number
- CN107332390A CN107332390A CN201710755219.6A CN201710755219A CN107332390A CN 107332390 A CN107332390 A CN 107332390A CN 201710755219 A CN201710755219 A CN 201710755219A CN 107332390 A CN107332390 A CN 107332390A
- Authority
- CN
- China
- Prior art keywords
- stator
- speed electric
- expreess locomotive
- electric expreess
- inclined groove
- 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.)
- Granted
Links
- 230000003137 locomotive effect Effects 0.000 title claims abstract description 20
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 16
- 208000010727 head pressing Diseases 0.000 claims description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 230000004323 axial length Effects 0.000 description 7
- 239000000725 suspension Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/09—Structural association with bearings with magnetic bearings
-
- 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
Abstract
The invention discloses a kind of high-speed electric expreess locomotive structure, including stator coil, stator silicon steel sheet, rotor, magnetic bearing and motor case, the stator silicon steel sheet is fixed in motor case, stator coil is around being located on stator silicon steel sheet, and the two-port of stator coil stretches out and forms conical cavity, two magnetic bearings are fixed in motor case, and two magnetic bearing respectively positioned at stator coil two ends conical cavity in, rotor is connected in stator silicon steel sheet, and the two ends of rotor are supported in motor case by two magnetic bearings.
Description
Technical field：
The present invention relates to a kind of high-speed electric expreess locomotive structure.
Background technology：
High speed, miniaturization, the magnetic suspension bearing of motor are following developing direction.But the development of high-speed electric expreess locomotive is also deposited
It is difficult to the difficulty that overcomes at some.
1st, motor high speed requires to improve the intrinsic frequency of rotor, it is therefore desirable to shorten rotor length.And it is long to shorten rotor
Degree is accomplished by compression stator thickness as far as possible and end line bag height, shortens bearing axial length.But these requirements with it is following several
Individual design requirement is contradiction.
2nd, motor miniaturization can not reduce the height of stator end line bag, or even also need to increase end to optimize radiating
Portion's height.And this is contradicted with the shortening rotor length requirement of high speed.
Because motor miniaturization improves power density, and reduce electric machine rotor diameter.But because wire is still
Copper cash or copper bar, so the thickness of coil heating amount and stator end line bag is not significantly reduced, therefore motor radiating condition
It is in deterioration.High speed large-size machine in order to optimize the radiating of stator end line bag, generally require by line wrapping be made it is petal,
Even hollow lattice-shaped is to increase area of dissipation, and now the height of a side end line bag is tended to and stator core similar elevation.
This, which results in rotor, becomes very elongated, does not reach expected rotating speed.
Although the suspension class bearing the 3, by representative of magnetic suspension bearing can bear higher rotating speed, identical axle journal area
On bearing capacity generally be less than rolling bearing.Bearing volume will typically be increased in order to improve bearing capacity, so as to cause motor to turn
Sub- length, the requirement with above-mentioned shortening rotor is contradicted.
The content of the invention：
The present invention is to provide a kind of high-speed electric expreess locomotive structure to solve the problem of above-mentioned prior art is present.
The technical solution adopted in the present invention has：A kind of high-speed electric expreess locomotive structure, including stator coil, stator silicon steel sheet, turn
Son, magnetic bearing and motor case, the stator silicon steel sheet are fixed in motor case, and stator coil is around being located at stator silicon steel sheet
On, and the two-port of stator coil stretches out and forms conical cavity, two magnetic bearings are fixed in motor case, and two magnetic axises
Hold respectively in the conical cavity at stator coil two ends, rotor is connected in stator silicon steel sheet, and the two ends of rotor pass through two magnetic
Bearing is supported in motor case.
Further, the magnetic bearing includes magnetic bearing base, U-shaped pole core, pole coil, head pressing plate and afterbody
Pressing plate, the magnetic bearing base is provided with axis hole, the upper surface of magnetic bearing base and on the circumferencial direction of axis hole it is uniform
Provided with four inclined grooves, the U-shaped pole core is in inclined groove, and the magnetic pole strength of the side of U-shaped pole core two is equal
Stretch in axis hole, two pole coils are arranged on the side of U-shaped pole core two respectively, head pressing plate and afterbody pressing plate pass through spiral shell
Nail is fixedly connected on the wall of inclined groove side, and U-shaped pole core is fixed in inclined groove, head pressing plate and afterbody pressing plate
It is positioned at positioned at the both sides up and down of pole coil, and by pole coil on U-shaped pole core.
Further, the inclined groove is 30 °~60 ° relative to the angle of inclination of axis hole axis.
Further, the U-shaped pole core is made up of silicon strip.
Further, the magnetic pole strength of two sides of the U-shaped pole core is arc-shaped.
Further, the magnetic bearing base include integrally formed circular portions and round platform portion, the round platform portion it is straight
Footpath is less than circular portions diameter, and the inclined groove is in round platform portion, and the bottom of inclined groove is extended in circular portions.
Further, stopper slot is provided with the inclined groove, the bottom of the pole coil is placed in the stopper slot.
Further, the afterbody pressing plate includes integrally formed first connecting portion, second connecting portion and limiting section, spacing
Portion and second connecting portion are vertical at the both sides of first connecting portion, and the first connecting portion and second connecting portion are fixed by screw
It is connected on the side wall of inclined groove, limiting section is plugged between two sides of U-shaped pole core.
The present invention has the advantages that：
1st, it is arranged in due to tilting magnetic bearing in the cavity of stator end line bag, both are used up same section in armature spindle
Axial length, is to be arranged in parallel, therefore the axial length of rotor is shorter than the structure of magnetic bearing, stator line bag arranged in series, has
Beneficial to raising rotor intrinsic frequency, so as to improve rotor speed.
2nd, because stator line bag is extended out in bell mouth shape, therefore in axial length phase isochrone bag surface area ratio from stator terminal
The cylindrical wires Bao Yao great that portion extends directly up, is conducive to improving area of dissipation, alleviates the heat dissipation problem of high-speed electric expreess locomotive.
3rd, because the present invention can greatly shorten rotor length, to limiting also than common string for stator line bag height
Join arrangement small, stator line bag height can do more；Stator line bag can make to reserve between coil after highly increasing
Gap, allows cooling air from free flow inside line bag, so as to improve stator heat-sinking capability, alleviate the radiating of high-speed electric expreess locomotive
Problem.
Brief description of the drawings：
Fig. 1 is structure chart of the present invention.
Fig. 2 is the tomograph of magnetic bearing in the present invention.
The partial enlarged drawing that Fig. 3 installs for a parts on magnetic bearing base in the present invention.
Fig. 4 is the front view of magnetic bearing in the present invention.
Fig. 5 is the top view of magnetic bearing in the present invention.
Fig. 6 is the graphics of magnetic bearing base in the present invention.
Fig. 7 is the plan of magnetic bearing base in the present invention.
Embodiment：
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in figure 1, the present invention discloses a kind of high-speed electric expreess locomotive structure, including stator coil 1, stator silicon steel sheet 2, rotor 3,
Magnetic bearing 4 and motor case, stator silicon steel sheet 2 are fixed in motor case, stator coil 1 around being located on stator silicon steel sheet 2, and
The two-port of stator coil 1 stretches out and forms conical cavity 11, and two magnetic bearings 4 are fixed in motor case, and two magnetic axises
4 are held respectively in the conical cavity 11 at the two ends of stator coil 1, rotor 3 is connected in stator silicon steel sheet 2, and the two ends of rotor 3 lead to
Two magnetic bearings 4 are crossed to be supported in motor case.
As shown in Figures 2 to 5, magnetic bearing 4 includes magnetic bearing base 41, U-shaped pole core 42, pole coil 43, head
Pressing plate 44 and afterbody pressing plate 45, magnetic bearing base 41 are fixed in motor case, and axle is provided with the center of magnetic bearing base 41
Hole 410, in the upper surface of magnetic bearing base 41 provided with four inclined grooves 411, four inclined grooves 411 are along axis hole 410
Circumferencial direction on be uniformly distributed.U-shaped pole core 42 is in inclined groove 411, and the magnetic of 42 liang of sides of U-shaped pole core
Pole-face A is stretched in axis hole 410, and two pole coils 43 are arranged on two sides of U-shaped pole core 42 respectively, head pressing plate 44
It is fixedly connected on afterbody pressing plate 45 by screw on the side wall of inclined groove 411, and U-shaped pole core 42 is fixed on inclines
In oblique groove 411, head pressing plate 44 and afterbody pressing plate 45 are located at the both sides up and down of pole coil 43, and pole coil 43 is positioned
In on U-shaped pole core 42.
Inclined groove 411 is 30 °~60 ° relative to the angle of inclination of the axis of axis hole 410.
U-shaped pole core 42 is made up of silicon strip.The magnetic pole strength A of two sides of U-shaped pole core 42 is arc-shaped.
With reference to Fig. 6 and Fig. 7, magnetic bearing base 41 includes integrally formed circular portions 418 and round platform portion 419, round platform portion
419 diameter is less than the diameter of circular portions 418, and inclined groove 411 is in round platform portion 419, and the bottom of inclined groove 411
Extend in circular portions 418.Circular portions 418 easily can coordinate with motor case hole to be positioned；It is easy to peace in round platform portion 419
Fill inclined U-shaped pole core 42.
For preferably pole coil 43 is positioned in inclined groove 411, stopper slot is provided with inclined groove 411
4111, the bottom of pole coil 43 is placed in the stopper slot 4111.
Afterbody pressing plate 45 in the present invention includes integrally formed first connecting portion 451, second connecting portion 452 and limiting section
453, limiting section 453 and second connecting portion 452 are vertical at the both sides of first connecting portion 451, and first connecting portion 451 and second connects
Socket part 452 is fixedly connected on the side wall of inclined groove 411 by screw, and limiting section 453 is plugged on the two of U-shaped pole core 42
Between side.
Screw hole on afterbody pressing plate 45 is all mounting hole, therefore can be adjusted automatically during screw is tightened
Section, it is ensured that U-shaped pole core 42 is firmly installed in place.
Compared with bearing-stator-bearing of conventional motor is installed in series structure, the invention has the advantages that：
1st, it is arranged in due to tilting magnetic bearing in the cavity of stator end line bag, both are used up same section in armature spindle
Axial length, is to be arranged in parallel.Therefore the axial length of rotor is shorter than the structure of magnetic bearing, stator line bag arranged in series, has
Beneficial to raising rotor intrinsic frequency, so as to improve rotor speed.
2nd, because stator line bag is extended out in bell mouth shape, therefore in axial length phase isochrone bag surface area ratio from stator terminal
The cylindrical wires Bao Yao great that portion extends directly up, is conducive to improving area of dissipation, alleviates the heat dissipation problem of high-speed electric expreess locomotive.
3rd, because the present invention can greatly shorten rotor length, to limiting also than common string for stator line bag height
Join arrangement small, stator line bag height can do more.Stator line bag can make to reserve between coil after highly increasing
Gap, allows cooling air from free flow inside line bag, so as to improve stator heat-sinking capability, alleviate the radiating of high-speed electric expreess locomotive
Problem.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, some improvement can also be made under the premise without departing from the principles of the invention, and these improvement also should be regarded as the present invention's
Protection domain.
Claims (8)
1. a kind of high-speed electric expreess locomotive structure, it is characterised in that：Including stator coil (1), stator silicon steel sheet (2), rotor (3), magnetic axis
(4) and motor case are held, the stator silicon steel sheet (2) is fixed in motor case, stator coil (1) is around being located at stator silicon steel sheet
(2) on, and the two-port of stator coil (1) stretches out and forms conical cavity (11), and two magnetic bearings (4) are fixed on motor machine
In shell, and conical cavity (11) of two magnetic bearings (4) respectively positioned at stator coil (1) two ends is interior, and rotor (3) is connected to stator silicon steel
In piece (2), and the two ends of rotor (3) are supported in motor case by two magnetic bearings (4).
2. high-speed electric expreess locomotive structure as claimed in claim 1, it is characterised in that：The magnetic bearing (4) includes magnetic bearing base
(41), U-shaped pole core (42), pole coil (43), head pressing plate (44) and afterbody pressing plate (45), the magnetic bearing base
(41) axis hole (410) is provided with, is uniformly set in the upper surface of magnetic bearing base (41) and on the circumferencial direction of axis hole (410)
There are four inclined grooves (411), the U-shaped pole core (42) is in inclined groove (411), and U-shaped pole core (42)
The magnetic pole strength (A) of two sides is stretched in axis hole (410), and two pole coils (43) are arranged in U-shaped pole core (42) respectively
On two sides, head pressing plate (44) and afterbody pressing plate (45) are fixedly connected on the side wall of inclined groove (411) by screw,
And U-shaped pole core (42) is fixed in inclined groove (411), head pressing plate (44) and afterbody pressing plate (45) are located at pole line
The both sides up and down of (43) are enclosed, and pole coil (43) is positioned on U-shaped pole core (42).
3. high-speed electric expreess locomotive structure as claimed in claim 2, it is characterised in that：The inclined groove (411) is relative to axis hole
(410) angle of inclination of axis is 30 °~60 °.
4. high-speed electric expreess locomotive structure as claimed in claim 2, it is characterised in that：The U-shaped pole core (42) is by silicon strip system
Into.
5. high-speed electric expreess locomotive structure as claimed in claim 2, it is characterised in that：Two sides of the U-shaped pole core (42)
Magnetic pole strength (A) is arc-shaped.
6. high-speed electric expreess locomotive structure as claimed in claim 2, it is characterised in that：The magnetic bearing base (41) includes being integrally formed
Circular portions (418) and round platform portion (419), the diameter of the round platform portion (419) is less than the diameter of circular portions (418), institute
Inclined groove (411) is stated on round platform portion (419), and the bottom of inclined groove (411) is extended in circular portions (418).
7. high-speed electric expreess locomotive structure as claimed in claim 2, it is characterised in that：Stopper slot is provided with the inclined groove (411)
(4111), the bottom of the pole coil (43) is placed in the stopper slot (4111).
8. high-speed electric expreess locomotive structure as claimed in claim 2, it is characterised in that：The afterbody pressing plate (45) includes integrally formed
First connecting portion (451), second connecting portion (452) and limiting section (453), limiting section (453) and second connecting portion (452) are vertical
Both sides located at first connecting portion (451), the first connecting portion (451) and second connecting portion (452) are fixed by screw to be connected
On the side wall for being connected on inclined groove (411), limiting section (453) is plugged between two sides of U-shaped pole core (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710755219.6A CN107332390B (en) | 2017-08-29 | 2017-08-29 | High-speed motor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710755219.6A CN107332390B (en) | 2017-08-29 | 2017-08-29 | High-speed motor structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107332390A true CN107332390A (en) | 2017-11-07 |
| CN107332390B CN107332390B (en) | 2023-12-26 |
Family
ID=60203896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710755219.6A Active CN107332390B (en) | 2017-08-29 | 2017-08-29 | High-speed motor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107332390B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112896A (en) * | 2020-09-10 | 2020-12-22 | 芜湖新从工业设计有限公司 | Magnetic axial bearing |
| CN112271958A (en) * | 2020-09-29 | 2021-01-26 | 珠海格力电器股份有限公司 | Magnetic suspension motor and bearing structure thereof |
| CN114517808A (en) * | 2022-01-18 | 2022-05-20 | 华驰动能(北京)科技有限公司 | Radial-axial integrated magnetic bearing for energy storage device and energy storage device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887930A (en) * | 2012-12-21 | 2014-06-25 | 南京梅山冶金发展有限公司 | Device used for dismounting valve motor core |
| CN106033915A (en) * | 2015-03-19 | 2016-10-19 | 上海鸣志电器股份有限公司 | Conical coreless winding convenient to assemble |
| CN207117401U (en) * | 2017-08-29 | 2018-03-16 | 南京磁谷科技有限公司 | A kind of high-speed electric expreess locomotive structure |
-
2017
- 2017-08-29 CN CN201710755219.6A patent/CN107332390B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887930A (en) * | 2012-12-21 | 2014-06-25 | 南京梅山冶金发展有限公司 | Device used for dismounting valve motor core |
| CN106033915A (en) * | 2015-03-19 | 2016-10-19 | 上海鸣志电器股份有限公司 | Conical coreless winding convenient to assemble |
| CN207117401U (en) * | 2017-08-29 | 2018-03-16 | 南京磁谷科技有限公司 | A kind of high-speed electric expreess locomotive structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112896A (en) * | 2020-09-10 | 2020-12-22 | 芜湖新从工业设计有限公司 | Magnetic axial bearing |
| CN112271958A (en) * | 2020-09-29 | 2021-01-26 | 珠海格力电器股份有限公司 | Magnetic suspension motor and bearing structure thereof |
| CN114517808A (en) * | 2022-01-18 | 2022-05-20 | 华驰动能(北京)科技有限公司 | Radial-axial integrated magnetic bearing for energy storage device and energy storage device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107332390B (en) | 2023-12-26 |
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Address after: No.99 Jinxin Middle Road, Jiangning District, Nanjing City, Jiangsu Province (Jiangning Development Zone) Applicant after: Nanjing Cigu Technology Co.,Ltd. Address before: 211102 No. 100 Jiuzhu Road, Jiangning Development Zone, Nanjing, Jiangsu Province Applicant before: NANJING CIGU Ltd.,Corp. |
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