CN107742931A - Motor stator core - Google Patents
Motor stator core Download PDFInfo
- Publication number
- CN107742931A CN107742931A CN201711121547.7A CN201711121547A CN107742931A CN 107742931 A CN107742931 A CN 107742931A CN 201711121547 A CN201711121547 A CN 201711121547A CN 107742931 A CN107742931 A CN 107742931A
- Authority
- CN
- China
- Prior art keywords
- slot
- stator
- seal
- endoporus
- magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/48—Fastening of windings on the stator or rotor structure in slots
- H02K3/487—Slot-closing devices
- H02K3/493—Slot-closing devices magnetic
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention provides a kind of motor stator core, belong to field of mechanical technique.It solves the problems, such as that existing motor stator core has larger slot effect and torque ripple.This motor stator core, including columned body, the middle part of body has along its axially extending endoporus, have on body some equally distributed along its axially extending stator slot around endoporus, stator winding is provided with stator slot, the stator slot wedge for located stator winding is provided between stator slot and endoporus, magnetic slot-seal is additionally provided between stator slot wedge and endoporus, body is provided with the location structure for being used for positioning magnetic slot-seal.The present invention can effectively reduce slot effect and torque ripple, improve efficiency, reduce noise.
Description
Technical field
The invention belongs to field of mechanical technique, is related to a kind of motor stator core.
Background technology
Existing permasyn morot is using the structure with teeth groove, because the presence of motor teeth groove causes motor to determine
Non-uniform air-gap between son and rotor, so as to cause the distortion of air-gap field, here it is slot effect, slot effect can cause
Motor performance reduces.
Therefore, Chinese patent discloses, a kind of without shafting outer rotor permanent magnet motor, [Authorization Notice No. is
CN103124126A], including stator cage, stator and rotor, stator cage be arranged on the internal circular surfaces of stator, stator is arranged on
Internal rotor, even air gap between stator and rotor be present；Stator includes stator yoke, stator slot, stator winding and slot wedge, annulus
The circumferential direction inside direction of shape stator yoke is uniformly arranged multiple stator slots, and stator slot is embedded in stator winding, the notch of stator slot
Slot wedge is set between stator cage, and slot wedge is used for fixed stator winding；Rotor includes rotor yoke and multiple rotor magnetic poles, rotor
The internal circular surfaces of yoke are uniformly arranged multiple rotor magnetic poles.
, can be by setting slot wedge fixed stator winding, because the presence of stator slot makes stator slot in above-mentioned synchronous motor
Magnetic field difference is produced with stator tooth, causes slot effect；And slot wedge is slot wedge made of common material, although can to stator around
Group is fixed, but can not keep, and has no to help to reducing slot effect.
The content of the invention
The purpose of the present invention is above mentioned problem be present for existing technology, it is proposed that one kind can conveniently place magnetic slot-seal
Motor stator core.
The purpose of the present invention can be realized by following technical proposal：
Motor stator core, including columned body, the middle part of the body have along its axially extending endoporus, institute
Have on the body stated some equally distributed interior provided with fixed along its axially extending stator slot, described stator slot around endoporus
Sub- winding, the stator slot wedge for located stator winding is provided between described stator slot and endoporus, it is characterised in that described
Magnetic slot-seal is additionally provided between stator slot wedge and endoporus, described body is provided with the location structure for being used for positioning magnetic slot-seal.
It is provided with above-mentioned motor stator core, between described stator slot and endoporus and determines for located stator slot wedge
Position portion, stator slot wedge are resisted against on location division, and the centre position of the location division has the company for being used for connecting stator slot and endoporus
Access slot, described magnetic slot-seal is in link slot.
In above-mentioned motor stator core, the width of the magnetic slot-seal is more than the width of link slot, described positioning
Structure includes the stopper slot one and the stopper slot two located at link slot opposite side, stopper slot one and stopper slot located at link slot side
Two are oppositely arranged, and magnetic slot-seal part is stretched in stopper slot one, and its another part is stretched in stopper slot two.
In above-mentioned motor stator core, described magnetic slot-seal is cylindrical.
In above-mentioned motor stator core, described stopper slot one is curved and a side surface with magnetic slot-seal is affixed
Close, described stopper slot two is curved and another side surface with magnetic slot-seal fits.
In above-mentioned motor stator core, width radially outward gradually the increasing along body of the stator slot, stator
The one end of groove away from endoporus is curved and outwardly.
In above-mentioned motor stator core, the minimum range of the magnetic slot-seal axis away from endoporus medial surface is more than magnetic
The radius of property slot wedge.
Compared with prior art, this motor stator core has advantages below：
Due to being provided with magnetic slot-seal between stator slot wedge and endoporus, effectively shortening gas length, slot effect reduces,
Exciting current is reduced simultaneously, improves power factor, declines no-load current, while magnetic flux distribution in air gap is tended to be uniform, can
Core loss is reduced, reduces motor temperature rise, reduces electromagnetic noise and vibration, extends motor service life.
Brief description of the drawings
Fig. 1 is the part-structure schematic diagram of body provided by the invention.
Fig. 2 is the part-structure schematic diagram of stator core provided by the invention.
In figure, 1, body；2nd, stator slot；3rd, stator winding；4th, stator slot wedge；5th, magnetic slot-seal；6th, location division；7th, connect
Groove；8th, stopper slot one；9th, stopper slot two.
Embodiment
It is the specific embodiment of the present invention and with reference to accompanying drawing below, technical scheme is further described,
But the present invention is not limited to these embodiments.
Motor stator core as depicted in figs. 1 and 2, including columned body 1, the middle part of body 1 have along its axle
To the endoporus of extension, as shown in figure 1, having on body 1 some equally distributed along its axially extending stator slot around endoporus
2, stator slot 2 is interior to be provided with stator winding 3, and the stator slot wedge 4 for located stator winding 3 is provided between stator slot 2 and endoporus, fixed
Magnetic slot-seal 5 is additionally provided between pilot trench wedge 4 and endoporus, body 1 is provided with the location structure for being used for positioning magnetic slot-seal 5.
As shown in figure 1, being provided with the location division 6 for located stator slot wedge 4 between stator slot 2 and endoporus, stator slot wedge 4 supports
Lean against on location division 6, the centre position of location division 6 has the link slot 7 for being used for connecting stator slot 2 and endoporus, and magnetic slot-seal 5 is set
In in link slot 7.
In the present embodiment, the width of magnetic slot-seal 5 is more than the width of link slot 7, as shown in figure 1, location structure includes setting
Stopper slot 1 in the side of link slot 7 and the stopper slot 29 located at the opposite side of link slot 7, stopper slot 1 and the phase of stopper slot 29
To setting, the part of magnetic slot-seal 5 is stretched in stopper slot 1, and its another part is stretched in stopper slot 29.
As shown in Fig. 2 magnetic slot-seal 5 is cylindrical.
As shown in figure 1, stopper slot 1 is curved and a side surface with magnetic slot-seal 5 fits, stopper slot 29 is in arc
Shape and fitted with another side surface of magnetic slot-seal 5.
As depicted in figs. 1 and 2, radially outward gradually increase of the width of stator slot 2 along body 1, stator slot 2 is away from endoporus
One end it is curved and outwardly.
Wherein, minimum range of the axis of magnetic slot-seal 5 away from endoporus medial surface is more than the radius of magnetic slot-seal 5, i.e. magnetic
Slot wedge 5 has a segment distance away from endoporus, prevents magnetic slot-seal 5 from being contacted with the rotor in stator core.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (7)
1. a kind of motor stator core, including columned body (1), the middle part of the body (1) is with axially extending along its
Endoporus, have on described body (1) it is some equally distributed along its axially extending stator slot (2) around endoporus, it is described
Stator slot (2) in be provided with stator winding (3), described stator slot (2) is between endoporus provided with being used for located stator winding (3)
Stator slot wedge (4), it is characterised in that described stator slot wedge (4) is additionally provided with magnetic slot-seal (5) between endoporus, described
Body (1) is provided with the location structure for being used for positioning magnetic slot-seal (5).
2. motor stator core according to claim 1, it is characterised in that described stator slot (2) is set between endoporus
There is the location division (6) for located stator slot wedge (4), stator slot wedge (4) is resisted against on location division (6), the location division (6)
Centre position has the link slot (7) for being used for connecting stator slot (2) and endoporus, and described magnetic slot-seal (5) is located at link slot (7)
It is interior.
3. motor stator core according to claim 2, it is characterised in that the width of the magnetic slot-seal (5), which is more than, to be connected
The width of access slot (7), described location structure are included located at the stopper slot one (8) of link slot (7) side and located at link slot (7)
The stopper slot two (9) of opposite side, stopper slot one (8) are oppositely arranged with stopper slot two (9), and magnetic slot-seal (5) partly stretches to limit
In position groove one (8), its another part is stretched in stopper slot two (9).
4. motor stator core according to claim 3, it is characterised in that described magnetic slot-seal (5) is cylindrical.
5. motor stator core according to claim 4, it is characterised in that described stopper slot one (8) it is curved and with
One side surface of magnetic slot-seal (5) fits, described stopper slot two (9) it is curved and with the opposite side table of magnetic slot-seal (5)
Face fits.
6. motor stator core according to claim 1, it is characterised in that the width of the stator slot (2) is along body (1)
Radially outward gradually increase, stator slot (2) away from endoporus one end it is curved and outwardly.
7. motor stator core according to claim 5, it is characterised in that magnetic slot-seal (5) axis is away from endoporus
The minimum range of medial surface is more than the radius of magnetic slot-seal (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711121547.7A CN107742931A (en) | 2017-11-14 | 2017-11-14 | Motor stator core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711121547.7A CN107742931A (en) | 2017-11-14 | 2017-11-14 | Motor stator core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107742931A true CN107742931A (en) | 2018-02-27 |
Family
ID=61233362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711121547.7A Pending CN107742931A (en) | 2017-11-14 | 2017-11-14 | Motor stator core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107742931A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108429422A (en) * | 2018-05-03 | 2018-08-21 | 包头天工电机有限公司 | Wheel hub permanent magnet synchronous motor |
| CN112600321A (en) * | 2020-12-01 | 2021-04-02 | 利欧集团浙江泵业有限公司 | Stator and rotor structure of permanent magnet control motor with positioning induction function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2201699A (en) * | 1936-12-21 | 1940-05-21 | Us Electrical Motors Inc | Magnetic structure for dynamoelectric machines |
| US3468019A (en) * | 1966-04-20 | 1969-09-23 | Ferranti Ltd | Method of making slot closers for small motors |
| JPS58105759U (en) * | 1982-01-14 | 1983-07-19 | 三菱電機株式会社 | Magnetic wedge for stator |
| JPS6174240U (en) * | 1984-10-23 | 1986-05-20 | ||
| JPH03256544A (en) * | 1990-03-07 | 1991-11-15 | Toshiba Corp | Magnetic wedge for rotary electric machine |
-
2017
- 2017-11-14 CN CN201711121547.7A patent/CN107742931A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2201699A (en) * | 1936-12-21 | 1940-05-21 | Us Electrical Motors Inc | Magnetic structure for dynamoelectric machines |
| US3468019A (en) * | 1966-04-20 | 1969-09-23 | Ferranti Ltd | Method of making slot closers for small motors |
| JPS58105759U (en) * | 1982-01-14 | 1983-07-19 | 三菱電機株式会社 | Magnetic wedge for stator |
| JPS6174240U (en) * | 1984-10-23 | 1986-05-20 | ||
| JPH03256544A (en) * | 1990-03-07 | 1991-11-15 | Toshiba Corp | Magnetic wedge for rotary electric machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108429422A (en) * | 2018-05-03 | 2018-08-21 | 包头天工电机有限公司 | Wheel hub permanent magnet synchronous motor |
| CN108429422B (en) * | 2018-05-03 | 2024-03-22 | 包头天工电机有限公司 | Hub permanent magnet synchronous motor |
| CN112600321A (en) * | 2020-12-01 | 2021-04-02 | 利欧集团浙江泵业有限公司 | Stator and rotor structure of permanent magnet control motor with positioning induction function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20180227 |