CN106655552A - Stator of motor - Google Patents
Stator of motor Download PDFInfo
- Publication number
- CN106655552A CN106655552A CN201710078701.0A CN201710078701A CN106655552A CN 106655552 A CN106655552 A CN 106655552A CN 201710078701 A CN201710078701 A CN 201710078701A CN 106655552 A CN106655552 A CN 106655552A
- Authority
- CN
- China
- Prior art keywords
- stator
- winding
- slot
- cell wall
- radiating ribs
- 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
- 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
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a stator of a motor. The stator of the motor comprises a stator body; a plurality of stator teeth are annularly arrayed in the inner cavity of the stator body; a stator slot is arranged between adjacent stator teeth; a plurality of heat dissipation ribs extending towards the slot are arranged on the slot wall at the left side and/or right side of the stator slot; the plurality of heat dissipation ribs are arranged at intervals along the radial direction; therefore, the stator slot is divided into a plurality of stator sub-slots along the radial direction; and a winding is arranged in each stator sub-slot. Due to the heat conduction action of the heat dissipation ribs, the highest temperature in the centre of the winding can be reduced by at least 40 DEG. The invention is used for the stator of the motor.
Description
Technical field
The present invention relates to a kind of stator of motor.
Background technology
Loss can be produced during motor operation, these losses are changed into heat energy, so that the temperature of motor each several part is raised, shadow
Ring the performance of the material such as permanent magnet and insulation.With the increasingly increase of motor single-machine capacity, how to improve heat-sinking capability to limit
Motor temperature rise is one of subject matter that motor development need to be solved.
At present existing motor stator structure is very limited for reduction temperature rise effect, the usual drop of those skilled in the art
Warm means are to carry out active heat removal using the fast material of heat conduction or to the outside of stator.
The content of the invention
The technical problem to be solved in the present invention is：A kind of electricity that can solve the problems, such as current motor radiating ability is provided
The stator of machine.
The present invention solves the solution of its technical problem：
A kind of stator of motor, including stator body, the inner chamber circular array of stator body shows several stator tooths, and adjacent determines
Stator slot is provided between sub- tooth, the left side of stator slot and/or the cell wall on right side are provided with several radiating ribs stretched out into groove,
The radially spaced setting of described several radiating ribs so that stator slot is radially divided into several divided stator grooves, divided stator
Winding is provided with groove.
Used as the further improvement of such scheme, the left side cell wall of stator slot is connected with the radiating ribs of right side cell wall.
Used as the further improvement of such scheme, the winding is distributed winding.
As the further improvement of such scheme, between being provided between the left side cell wall of stator slot and the radiating ribs of right side cell wall
Gap.
Used as the further improvement of such scheme, the gap positioned at left side cell wall and two radiating ribs of right side cell wall is little
In the 38.2% of its flute length being located.
Used as the further improvement of such scheme, the winding is fractional-slot concentratred winding.
Used as the further improvement of such scheme, radiating ribs are concordant with winding.
Used as the further improvement of such scheme, the stator body is formed by multiple individual stator pieces stacking.
The invention has the beneficial effects as follows：A kind of stator of motor, including stator body, the inner chamber annular array of stator body
Have several stator tooths, be provided with stator slot between adjacent stator tooth, the left side of stator slot and/or the cell wall on right side be provided with to
Several radiating ribs stretched out in groove, the radially spaced setting of described several radiating ribs so that stator slot is radially divided
Into several divided stator grooves, in divided stator groove winding is provided with.By the conductive force of radiating ribs, can be by the highest temperature at winding center
Degree reduces at least 40 degree.The present invention is used for motor stator.
Description of the drawings
Technical scheme in order to be illustrated more clearly that the embodiment of the present invention, below will be to making needed for embodiment description
Accompanying drawing is briefly described.Obviously, described accompanying drawing is a part of embodiment of the present invention, rather than is all implemented
Example, those skilled in the art on the premise of not paying creative work, can be designed with obtaining other according to these accompanying drawings
Scheme and accompanying drawing.
Fig. 1 is the structural representation of embodiment of the present invention a1；
Fig. 2 is the structure partial enlarged diagram of embodiment of the present invention a1；
Fig. 3 is the structural representation of embodiment of the present invention a2；
Fig. 4 is the structure partial enlarged diagram of embodiment of the present invention a2；
Fig. 5 is the isothermal line schematic diagram of traditional stator structure；
Fig. 6 is the isothermal line schematic diagram of embodiment of the present invention a2；
Fig. 7 is the thermal resistance equivalent schematic of traditional stator structure；
Fig. 8 is the thermal resistance equivalent schematic of embodiment of the present invention a2.
Specific embodiment
The technique effect of the design, concrete structure and generation of the present invention is carried out clearly below with reference to embodiment and accompanying drawing
Chu, it is fully described by, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this
Bright a part of embodiment, rather than whole embodiments, based on embodiments of the invention, those skilled in the art is not paying
The other embodiment obtained on the premise of creative work, belongs to the scope of protection of the invention.In addition, be previously mentioned in text
All connection/annexations, not singly refer to that component directly connects, and refer to and can be added deduct by adding according to the situation that is embodied as
Lack couple auxiliary to constitute more excellent draw bail.Each technical characteristic in the invention, in not conflicting conflict
Under the premise of can be with combination of interactions.
See figures.1.and.2, this is embodiments of the invention a1, specifically：
A kind of stator of motor, including stator body 1, the inner chamber circular array of stator body 1 shows several stator tooths 11, adjacent
Stator tooth 11 between be provided with stator slot, the left side of stator slot and/or the cell wall on right side are provided with several that stretch out into groove
Radiating ribs 13, described several radially spaced settings of radiating ribs 13 so that stator slot is radially divided into several stators
Divide in groove, divided stator groove 12 and is provided with winding.The left side cell wall of stator slot is connected with the radiating ribs 13 of right side cell wall.By radiating ribs
Conductive force, the maximum temperature at winding center can be reduced at least 40 degree.The winding that the present embodiment is adopted for it is distributed around
Group, while so easy to assembly, also can to greatest extent carry out the radiating of winding, due to the temperature of winding it is low, so winding
Resistance be relatively low, resistance is low also to cause the present invention more energy-conservation.Because too thick radiating ribs also result in the sky of stator
Between can not effectively utilize, therefore through substantial amounts of experiment, the thickness of radiating ribs is not more than the five of divided stator groove width radially
/ mono-.
With reference to Fig. 3 and Fig. 4, this is embodiments of the invention a2, specifically：
Gap is provided between the left side cell wall of stator slot and the radiating ribs 13 of right side cell wall.So can easily carry out winding
Coiling, also can provide a radiating with understanding for heat.In order to effectively utilize space, while being located at left side cell wall and right side groove
Two relative radiating ribs gaps of wall are not more than the 38.2% of the flute length at its place, and if the gap between above-mentioned two radiating ribs
If 38.2%, the overall dimensions of stator can be done little completely, because experiment proves determining with same overall dimensions
Son, the gap for flute length 50% with gap for flute length 38.2% gap when, winding central temperature drop be only 5 degree with
It is interior, but the magnetic property of stator just have dropped 30%.The winding of the present embodiment is fractional-slot concentratred winding.In order to allow radiating
Muscle can maximally play its effect, and radiating ribs 13 are concordant with winding.Independently determined by multiple to reduce stator body 1 described in iron loss
Sub-pieces stacking is formed.
With reference to Fig. 5 and Fig. 6, respectively 135 DEG C from the inside to the outside of four in the temperature of traditional stator, such as Fig. 5 isothermal line,
1112 DEG C, 74 DEG C, 50 DEG C, and its center maximum temperature is 161.65 DEG C；And Fig. 6 is the isothermal line of embodiment a2, in Fig. 5
Four isothermal line is respectively from the inside to the outside 102 DEG C, 87 DEG C, 64 DEG C, 50 DEG C, and its center maximum temperature is 117.46 DEG C；Through
Data Comparison, it is known that the present invention can be effectively reduced the central temperature of winding.
It is the thermal resistance equivalent schematic to traditional stator with reference to Fig. 7 and Fig. 8, Fig. 7, and Fig. 8 is the stator to embodiment a2
Thermal resistance equivalent schematic, it can be seen that tradition and the present invention stator thermal resistance structure be as, but due to radiate
The setting of muscle, causes the thermal resistance being filled in Fig. 8 to become very little, therefore heat conduction herein is fast, allows the isothermal both sides of the present invention to be in
Waveform.
The better embodiment of the present invention is illustrated above, but the invention is not limited to the enforcement
Example, those of ordinary skill in the art can also make a variety of equivalent modifications on the premise of without prejudice to spirit of the invention or replace
Change, the modification of these equivalents or replacement are all contained in the application claim limited range.
Claims (8)
1. a kind of stator of motor, including stator body（1）, stator body（1）Inner chamber circular array show several stator tooths
（11）, adjacent stator tooth（11）Between be provided with stator slot, it is characterised in that：On the left side of stator slot and/or the cell wall on right side
It is provided with several radiating ribs stretched out into groove（13）, described several radiating ribs（13）Radially spaced setting so that stator
Groove is radially divided into several divided stator grooves（12）, divided stator groove（12）Inside it is provided with winding.
2. the stator of a kind of motor according to claim 1, it is characterised in that：The left side cell wall and right side cell wall of stator slot
Radiating ribs（13）It is connected.
3. the stator of a kind of motor according to claim 2, it is characterised in that：The winding is distributed winding.
4. the stator of a kind of motor according to claim 1, it is characterised in that：The left side cell wall and right side cell wall of stator slot
Radiating ribs（13）Between be provided with gap.
5. the stator of a kind of motor according to claim 4, it is characterised in that：Positioned at the two of left side cell wall and right side cell wall
Individual radiating ribs（13）Gap is not more than the 38.2% of the flute length at its place.
6. the stator of a kind of motor according to claim 4, it is characterised in that：The winding is fractional-slot concentratred winding.
7. the stator of a kind of motor according to claim 6, it is characterised in that：Radiating ribs（13）It is concordant with winding.
8. the stator of a kind of motor according to claim 1 to 7, it is characterised in that：The stator body（1）By multiple only
Sub-pieces of halting stacking is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710078701.0A CN106655552A (en) | 2017-02-14 | 2017-02-14 | Stator of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710078701.0A CN106655552A (en) | 2017-02-14 | 2017-02-14 | Stator of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106655552A true CN106655552A (en) | 2017-05-10 |
Family
ID=58846133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710078701.0A Pending CN106655552A (en) | 2017-02-14 | 2017-02-14 | Stator of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106655552A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230123354A1 (en) * | 2018-01-19 | 2023-04-20 | Hamilton Sundstrand Corporation | Slot cooling fins in electrical machines |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010136477A (en) * | 2008-12-02 | 2010-06-17 | Calsonic Kansei Corp | Electric compressor |
| US20140070640A1 (en) * | 2012-09-13 | 2014-03-13 | General Electric Company | Cooling ducts in an electro-dynamic machine |
| JP5869798B2 (en) * | 2011-08-04 | 2016-02-24 | ダイヤモンド電機株式会社 | Brushless motor and electric power steering apparatus provided with the same |
| CN207069706U (en) * | 2017-02-14 | 2018-03-02 | 佛山智能装备技术研究院 | A kind of stator of motor |
-
2017
- 2017-02-14 CN CN201710078701.0A patent/CN106655552A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010136477A (en) * | 2008-12-02 | 2010-06-17 | Calsonic Kansei Corp | Electric compressor |
| JP5869798B2 (en) * | 2011-08-04 | 2016-02-24 | ダイヤモンド電機株式会社 | Brushless motor and electric power steering apparatus provided with the same |
| US20140070640A1 (en) * | 2012-09-13 | 2014-03-13 | General Electric Company | Cooling ducts in an electro-dynamic machine |
| CN207069706U (en) * | 2017-02-14 | 2018-03-02 | 佛山智能装备技术研究院 | A kind of stator of motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230123354A1 (en) * | 2018-01-19 | 2023-04-20 | Hamilton Sundstrand Corporation | Slot cooling fins in electrical machines |
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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 |
Application publication date: 20170510 |
|
| RJ01 | Rejection of invention patent application after publication |