CN110299779A - Stator structure and have the rotating electric machine of the stator structure, vehicle - Google Patents
Stator structure and have the rotating electric machine of the stator structure, vehicle Download PDFInfo
- Publication number
- CN110299779A CN110299779A CN201910226283.4A CN201910226283A CN110299779A CN 110299779 A CN110299779 A CN 110299779A CN 201910226283 A CN201910226283 A CN 201910226283A CN 110299779 A CN110299779 A CN 110299779A
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- CN
- China
- Prior art keywords
- slot
- stator
- coil
- opening slot
- stator structure
- 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
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Classifications
-
- 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
- H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
- H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The present invention provides the stator structure that one kind can further increase insertion of the coil relative to opening slot.Stator structure has: stator core (20), with multiple opening slots (28), in sectional coil (22a) insertion opening slot (28) and will be wound；And insulating paper (32), it is installed between opening slot (28) and sectional coil (22a), by making the circumferential width (W1) of the outer region of stator core (20) different with the size of circumferential width (W2) of inner region in opening slot (28), thus it is formed a pair of of protrusion relative to each other (30,30) in the inner peripheral portion of opening slot (28), the overhang (P) of each protrusion (30) and circumferential thickness (T) of insulating paper (32) are roughly the same.
Description
Technical field
The present invention relates to stator structure, has the rotating electric machine of the stator structure and have the vehicle of the stator structure.
Background technique
In the past, as hybrid motor vehicle, electric motor vehicle power source and use rotating electric machine.The electric rotating mechanism
As having stator.The stator has insulating paper, coil (conducting wire) and cricoid stator core.Insulating paper is along opening slot
Internal surface configurations opening slot in.In coil insertion opening slot, across insulating paper configuration in opening slot.
When manufacturing stator, firstly, arranging the shape of insulating paper so that insulating paper edge in insulating paper insertion opening slot
Opening slot inner surface.Then, coil is inserted into and is configured in opening slot.In by coil insertion opening slot
When, there are coils to interfere (contact) with the both ends of insulating paper in the inlet of opening slot, and insulating paper can be from opening slot
Inner surface deviates such unfavorable condition.
Therefore, in patent document 1, the linking part that adjacent insulating paper is connected to each other in advance is formed, is inserted by coil
After entering into opening slot, cuts off linking part and separate insulating paper for each opening slot.Finally, by exhausted after separation
The both ends of edge paper are to opening slot inner bending and cover coil.
Citation
Patent document
Patent document 1: No. 4973420 bulletins of Japanese Patent Publication No.
However, when in by coil insertion opening slot, becoming insulation in stator structure disclosed in patent document 1
The linking part of paper is exposed to the state of the outside of tooth.When as a result, in by coil insertion opening slot, coil is possible to and insulate
The linking part of paper contacts.
As a result, in stator structure disclosed in patent document 1, insertion of the worry coil relative to opening slot
Property.
Summary of the invention
Subject to be solved by the invention
The present invention has been made in view of the above-described circumstances, and an object thereof is to provide can further increase coil relative to opening
The stator structure of the insertion of mouth slot has the rotating electric machine of the stator structure and has the vehicle of the stator structure.
Solution for solving the problem
In order to reach the purpose, it is a feature of the present invention that having: stator core will be segmented with multiple slots
Coil is inserted into the slot and is wound；And insulating trip, it is installed between the slot and the sectional coil, institute
Slot is stated to be made of opening slot, which is open in a manner of at least broader than the circumferential width of the sectional coil,
By making the size of the circumferential width of the outer region of the stator core of the slot and the circumferential width of inner region not
Protrusion, the circumferential thickness of the overhang of the protrusion and the insulating trip are formed with and the inner peripheral portion of the slot
It is roughly the same.
Invention effect
Using the present invention, the stator knot that can further increase insertion of the coil relative to opening slot can be obtained
Structure, the rotating electric machine for having the stator structure and the vehicle for having the stator structure.
Detailed description of the invention
Fig. 1 is the outline structure cross-sectional view for applying the rotating electric machine of stator structure of embodiments of the present invention.
Fig. 2 is the enlarged partial sectional view of stator shown in FIG. 1.
Fig. 3 is the enlarged cross-sectional view that a part of sectional coil is omitted in 1 opening slot shown in Fig. 2.
Fig. 4 is the diagrammatic cross-section for indicating that the folding line of insulating paper is wide.
Fig. 5 is the diagrammatic cross-section for indicating the variation of folding line shape of insulating paper.
Fig. 6 is the diagrammatic cross-section for indicating to be inserted into the gap of internal side diameter for coil.
Fig. 7 is the diagrammatic cross-section for the comparative example for indicating that the applicant proposes.
Description of symbols:
10, rotating electric machine；20, stator core；22a, sectional coil；28, be open slot；30, protrusion；32, insulating paper
(insulating trip)；The circumferential width of W1, outer region；The circumferential width of W2, inner region；The circumferential width of W3, sectional coil；
The circumferential width of W4, the slot that is open；P, the overhang of protrusion；T, the circumferential thickness of insulating paper；FW, folding line are wide.
Specific embodiment
Then, referring to attached drawing appropriate, detailed description of embodiments of the present invention.Fig. 1 applies of the invention
The outline structure cross-sectional view of the rotating electric machine of the stator structure of embodiment.
As shown in Figure 1, the rotating electric machine 10 for applying the stator structure of embodiments of the present invention is configured to have shell
12, stator 14, rotor 16 and axis (output shaft) 18.
The traveling that rotating electric machine 10 is for example mounted in vehicle as hybrid motor vehicle, electric motor vehicle uses horse
It reaches.It should be noted that the rotating electric machine 10 is not limited to traveling motor, for example, can also be applied to be equipped on vehicle
The motor of other purposes such as power generation motor.In addition, the rotating electric machine 10 can be applied to be equipped on the device other than vehicle
Rotating electric machine can apply the so-called rotating electric machine of whole including generator.
Shell 12 is for example formed as the tubular for capableing of housing stator 14 and rotor 16.Stator 14 is annular in shape, such as installs
In the inner peripheral surface of shell 12.Stator 14 makes rotating excitation field act on rotor 16.
Rotor 16 for example with rotor core (not shown) and is installed on the magnet (not shown) of rotor core, in stator
14 inside configuration, can be rotated by driving.
Axis 18 is connected to the rotation center of rotor 16, and the rotary force of rotor 16 is exported as driving force.
Fig. 2 is the enlarged partial sectional view of stator shown in FIG. 1.
As shown in Fig. 2, stator 14 is configured to have stator core 20 and is installed on the coil 22 of stator core 20.Stator iron
The heart 20 is configured to surround the ring-type of rotor 16.It should be noted that stator core 20 for example can be by being circumferentially divided
Multiple sheet materials are interconnected and the divided stator core that is formed or are formed by multiple electromagnetic steel plates along axially stacked
Laminated type stator core either one.
Stator core 20 has cricoid magnetic yoke 24, multiple teeth 26 and multiple opening slots 28.Multiple teeth 26 are formed as
It is prominent from magnetic yoke 24 to the radially inner side of stator core 20.
Opening slot 28 is formed between two teeth 26,26 adjacent to each other in the circumferential direction of stator core 20.The opening
Slot 28 is formed as axially penetrating through stator core 20 along stator core 20.In addition, opening slot 28 is formed as along stator core
20 radially extend.Opening slot 28 is open along radial inner peripheral surface side.The outer peripheral surface along radial direction of opening slot 28
Side is formed as closing.
Coil 22 is contained in the opening slot 28 of stator core 20, and is assemblied in stator core 20.The coil 22 utilizes
It is made of three-phase coil that U phase, V phase and W phase are constituted.Coil 22 is by multiple sectional coil 22a for using interconnectedly
It constitutes.1 sectional coil 22a has multiple conducting wires.Multiple conducting wires are configured to radially arrange in series in opening slot 28.
Fig. 3 is the enlarged cross-sectional view that a part of sectional coil is omitted in 1 opening slot shown in Fig. 2.
The slot 28 that will be open is equipped in the front end of the inner diameter end of adjacent tooth 26,26 to be clipped in the middle and towards one another
Circumferentially a pair of of protrusion 30,30 outstanding.In addition, being clamped with insulating paper between opening slot 28 and sectional coil 22a (absolutely
Embolium) 32.
A pair of protrusion 30,30 is opposite in the circumferential each other, they radially be dimensioned so as to it is identical.Each protrusion
Portion 30 is the size and inner region by the circumferential width (W1) for making the outer region of stator core 20 in opening slot 28
Circumferential width (W2) size it is different and formed.That is, in the present embodiment, in opening slot 28, making stator core
The size of the circumferential width (W1) of 20 outer region is greater than the size of the circumferential width (W2) of the inner region of stator core 20
(W1 > W2) forms a pair of of protrusion 30,30 using the size poor (W1-W2).The overhang (P) of each protrusion 30 is formed as
It is roughly the same (P ≈ T) with circumferential thickness (T) of insulating paper 32.
Protrusion 30 is formed by the inner diameter end in tooth 26, thus in the upper of side and the protrusion 30 of opening slot 28
Stage portion 34 is formed between surface.It is using the stage portion 34 that the lower end for being inserted into the insulating paper 32 in opening slot 28 is (preceding
End) it is locking, prevent insulating paper 32 from falling off out of opening slot 28 to outside.
The basic composition as described above of rotating electric machine 10 for applying the stator structure of present embodiment, then, makees it
It is illustrated with effect.
In the present embodiment, it is fixed the circumferential width (W1) of the outer region of stator core 20 to be dimensioned to be greater than
The circumferential width (W2) (W1 > W2) of the inner region of sub- iron core 20.As a result, in the present embodiment, in adjacent tooth 26,26
The front end of inner diameter end be formed with circumferentially prominent and relative to each other a pair of of protrusion 30,30.As a result, in this implementation
In mode, when in by 32 insertion opening slot 28 of insulating paper, the lower end (front end) of insulating paper 32 utilizes the upper table of protrusion 30
Face, that is, stage portion 34 is locking.
In this case, compared with the case where linking part as conventional art is set, in the present embodiment, Neng Gou
In the case that insulating paper 32 is not exposed to the outside of opening slot 28, suitably avoid sectional coil 22a insertion opening slot
Interference when in 28 between insulating paper 32.As a result, in the present embodiment, (the segmentation of coil 22 can be further increased
Coil 22a) relative to opening slot 28 insertion.
In addition, as shown in figure 3, in the present embodiment, by the protrusion of other side's protrusion 30 outstanding opposite to each other
Amount (P) is set as roughly the same (P ≈ T) with circumferential thickness (T) of insulating paper 32.Thereby, it is possible to reduce in insulating paper 32 and determine
The slot gap (SC) that gap location between sub- iron core 20 is formed (is capable of increasing the facewidth between adjacent tooth 26,26 (with W2 phase
Together)).Therefore, in the present embodiment, by making slot gap (SC) be similar to zero as much as possible, thus, it is possible to increase opening
Coil occupation rate in slot 28.As a result, in the present embodiment, by the way that the overhang (P) of each protrusion 30 is set as
It is roughly the same (P ≈ T) with circumferential thickness (T) of insulating paper 32, thus it enables that the coil occupation rate in opening slot 28 is most
Greatly.
It should be noted that by make the overhang (P) of each protrusion 30 than insulating paper 32 circumferential thickness (T) slightly
Thus thickness haves the advantages that reliably insert sectional coil 22a in opening slot 28.
Fig. 7 is the diagrammatic cross-section for the comparative example for indicating that the applicant proposes.
In the comparative example, the overhang (P) of other side's protrusion 30 outstanding opposite to each other is set as than insulation
The circumferential thickness (T) of paper 32 is big (P > > T).As a result, in a comparative example, between insulating paper 32 and stator core 20
The slot gap (SC) formed at gap becomes larger, and compared with present embodiment, the coil occupation rate being open in slot 28 is reduced.
In addition, in the present embodiment, being axially formed two folding lines along stator core 20 on insulating paper 32.Such as figure
Shown in 4, the folding line wide (FW) between two folding lines of insulating paper 32 be set in the circumferential width (W3) of sectional coil 22a or more and
Opening slot 28 circumferential width (W4) below then preferably (W3≤FW≤W4).It should be noted that the folding line of insulating paper 32
Shape is arbitrary.For example, it may be the folding line shape for keeping the side of its two sides orthogonal relative to center edge, relative to center
The folding line shape portion 36 of cone cell is arranged in the two sides Bian Qi (referring to Fig. 5).
In addition, in the present embodiment, as shown in fig. 6, be set as can for the width dimensions between a pair of of protrusion 30,30
Guarantee the width dimensions that the gap (CL) of internal side diameter is inserted into for coil 22.This can be inserted into the gap of internal side diameter for coil 22
(CL) be width direction gap CL1 and the other side between protrusion 30 and sectional coil 22a by side protrusion 30 with
Width direction gap CL2 between sectional coil 22a is added (CL=CL1+CL2) that obtained gap is constituted.As a result, at this
In embodiment, sectional coil 22a can be easy and swimmingly be inserted between a pair of of protrusion 30,30.
In addition, the rotating electric machine 10 by the stator structure that will be provided with present embodiment is equipped on vehicle (not shown), energy
Enough simplify manufacturing process, reduces manufacturing cost.
Claims (4)
1. a kind of stator structure, which is characterized in that
The stator structure has:
Sectional coil is inserted into the slot and is wound with multiple slots by stator core；And
Insulating trip is installed between the slot and the sectional coil,
The slot is made of opening slot, and the opening slot is in a manner of at least broader than the circumferential width of the sectional coil
Opening,
By making the circumferential width of the outer region of the stator core in the slot and the circumferential width of inner region
Size is different and is formed with protrusion in the inner peripheral portion of the slot,
The overhang of the protrusion is roughly the same with the circumferential thickness of the insulating trip.
2. stator structure according to claim 1, which is characterized in that
The insulating trip has two be axially formed the folding line along the stator core,
Folding line width setting between two folding lines is more than the circumferential width of the sectional coil and in the week of the slot
To below width.
3. a kind of rotating electric machine, wherein
The rotating electric machine has stator structure of any of claims 1 or 2.
4. a kind of vehicle, wherein
The vehicle has stator structure of any of claims 1 or 2.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-056564 | 2018-03-23 | ||
| JP2018056564A JP2019170084A (en) | 2018-03-23 | 2018-03-23 | Stator structure, rotary electric machine with stator structure, and vehicle with stator structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110299779A true CN110299779A (en) | 2019-10-01 |
Family
ID=68026467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910226283.4A Pending CN110299779A (en) | 2018-03-23 | 2019-03-22 | Stator structure and have the rotating electric machine of the stator structure, vehicle |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2019170084A (en) |
| CN (1) | CN110299779A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003324913A (en) * | 2002-05-08 | 2003-11-14 | Aisin Aw Co Ltd | Method of manufacturing core equipped with insulating material, and core manufactured thereby |
| CN1973419A (en) * | 2004-06-16 | 2007-05-30 | 威斯通全球技术公司 | Dynamoelectric machine stator core with mini caps |
| CN202488231U (en) * | 2012-03-17 | 2012-10-10 | 锦州韩华电装有限公司 | Automobile starter armature iron core inserting-wire groove structure |
| CN104919679A (en) * | 2013-01-22 | 2015-09-16 | 丰田自动车株式会社 | Stator, stator manufacturing method, and rotary electric machine |
-
2018
- 2018-03-23 JP JP2018056564A patent/JP2019170084A/en active Pending
-
2019
- 2019-03-22 CN CN201910226283.4A patent/CN110299779A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003324913A (en) * | 2002-05-08 | 2003-11-14 | Aisin Aw Co Ltd | Method of manufacturing core equipped with insulating material, and core manufactured thereby |
| CN1973419A (en) * | 2004-06-16 | 2007-05-30 | 威斯通全球技术公司 | Dynamoelectric machine stator core with mini caps |
| CN202488231U (en) * | 2012-03-17 | 2012-10-10 | 锦州韩华电装有限公司 | Automobile starter armature iron core inserting-wire groove structure |
| CN104919679A (en) * | 2013-01-22 | 2015-09-16 | 丰田自动车株式会社 | Stator, stator manufacturing method, and rotary electric machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019170084A (en) | 2019-10-03 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20191001 |