CN106787294B - Stator for an electric machine and electric machine - Google Patents
Stator for an electric machine and electric machine Download PDFInfo
- Publication number
- CN106787294B CN106787294B CN201611196076.1A CN201611196076A CN106787294B CN 106787294 B CN106787294 B CN 106787294B CN 201611196076 A CN201611196076 A CN 201611196076A CN 106787294 B CN106787294 B CN 106787294B
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- filler strip
- stator
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- monomer
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- 239000000945 filler Substances 0.000 claims abstract description 446
- 238000004804 winding Methods 0.000 claims abstract description 165
- 239000000178 monomer Substances 0.000 claims description 189
- 210000003781 tooth socket Anatomy 0.000 claims description 77
- 238000003475 lamination Methods 0.000 claims description 19
- 238000001816 cooling Methods 0.000 abstract description 80
- 238000009423 ventilation Methods 0.000 abstract description 13
- 238000010030 laminating Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 146
- 238000010586 diagram Methods 0.000 description 26
- 230000004323 axial length Effects 0.000 description 13
- 238000009434 installation Methods 0.000 description 7
- 239000004744 fabric Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- -1 Aniline phenol aldehyde Chemical class 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- 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
- H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention provides a stator for a motor and the motor. The stator for an electric motor includes: the stator core is formed by laminating a plurality of laminated sheets, and a gasket is arranged between two adjacent laminated sheets in the laminated sheets so as to form a radial ventilation channel between the two adjacent laminated sheets; the double-layer winding is stacked in a tooth slot of the stator core along the radial direction of the stator core; the filler strip is arranged between the double-layer windings along the axial direction of the stator core, and a groove-shaped channel is arranged on the filler strip, so that the winding surface facing the groove-shaped channel in the double-layer windings is communicated with the radial ventilation channel. Can form cooling channel between double-deck winding to can make the inside cooling air current of motor carry out direct cooling to double-deck winding through cooling channel, improve the cooling efficiency to double-deck winding.
Description
Technical field
The present invention relates to motor cooling technology more particularly to a kind of stators and motor for motor.
Background technique
With the raising of large-scale magneto capacity, the loss inside motor is also increased accordingly, to cause inside motor
Temperature rise it is excessively high, and then influence motor safe and stable operation.In motor, maximum pyrotoxin is winding, and the main of winding dissipates
Most effective radiating mode is exactly directly cool down by the air-flow to circulate in radial ducts in hot mode.Existing motor
Radial ventilation cooling structure is that several radial ducts for ventilation are provided on stator core, in this way, by outside motor
After the cold wind that cooling blower provides enters motor, it is in the ventilating path that motor internal circulation is constituted：Air-flow is axial from motor
Both ends enter inside motor, entered in the air gap between stator and rotor by the end of winding, using stator core
Several radial ducts of place's setting reach in the cavity of stator support, arrange the thermal current at stator support finally by pipeline
Out to outside motor.
According to the ventilating path analysis inside motor it is found that cold wind enters the air gap between stator and rotor after, due to fixed
It the reason of shunting of radial ducts at sub- iron core, part and on-way resistance, causes between stator core and rotor
The flowing velocity of the air-flow to circulate in air gap is smaller and smaller.The axial ends air inlet of air gap in this way between stator and rotor
Static pressure to the air-flow in motor axial direction middle position be it is increasing, dynamic pressure is then smaller and smaller；In addition, radial logical due to entering
The cooling first of the air-flow in air duct is upper layer winding, and followed by therefore lower layer's winding causes the maximum temperature position of winding to answer position
At interlayer filler strip between upper layer winding and lower layer's winding.
Currently, on the one hand since the interlayer filler strip in the tooth socket of the stator core of motor between Double Layer Winding is insulation
Material, thermal coefficient is very low, is unfavorable for radiating；And the width and space width of another aspect motor interlayer filler strip are substantially
Be it is the same, as length with the axial length of tooth socket is substantially also, therefore at the filler strip of Double Layer Winding in-between
Heat be not easy to shed, be easy to cause heat to accumulate at filler strip in this way, to can impact to the stable operation of motor.
Summary of the invention
According to an embodiment of the invention, a kind of stator and motor for motor is provided, it can be in stator core
Cooling duct is formed between Double Layer Winding in tooth socket, enables the cooling air-flow inside motor by the cooling duct to bilayer
Winding directly cool down, to improve the cooling efficiency to Double Layer Winding.
According to an aspect of the invention, there is provided a kind of stator for motor, the stator include：It is stator core, double
Layer winding and filler strip, stator core are overrided to form by multiple laminations, and are set between two laminations adjacent in multiple laminations
Gasket is set, to form radial ducts between two adjacent laminations；Double Layer Winding is along the radially superposed in fixed of stator core
In the tooth socket of sub- iron core；Filler strip is axially set between Double Layer Winding along stator core, and filler strip is provided with grooved passageway,
So that the winding surface towards grooved passageway in Double Layer Winding is connected to radial ducts.
According to an aspect of the present invention, the quantity of grooved passageway is multiple, and multiple grooved passageways are close to filler strip along length
The both side ends in direction are arranged.
According to an aspect of the present invention, two of filler strip along its length are arranged in axial symmery shape in multiple grooved passageways
Side.
According to an aspect of the present invention, grooved passageway is penetrated through along the length direction of filler strip.
According to an aspect of the present invention, grooved passageway is axially symmetric structure in the length direction of filler strip.
According to an aspect of the present invention, grooved passageway is open ended in the one or both sides of filler strip along its length, with
Air inlet is formed in the one or both sides end of filler strip.
According to an aspect of the present invention, filler strip is the separate structure being made of multiple filler strip monomers, multiple filler strip monomers
Separate each other and is arranged to form grooved passageway.
According to an aspect of the present invention, grooved passageway includes at least partially radial logical in corresponding multiple radial ducts
One or more air outlets of air duct setting.
According to an aspect of the present invention, one or more air outlets are corresponding is located at tooth socket one or both sides at least partly
Radial ducts setting.
According to an aspect of the present invention, one or more air outlets are set correspondingly at least partially radial ventilating duct
It sets.
According to an aspect of the present invention, one or more air outlets are set to the substantially interposition of filler strip along its length
It sets.
According to an aspect of the present invention, each air outlet in one or more air outlets and at least partially radial ventilation
Multiple radial ducts in road are arranged in correspondence with.
According to an aspect of the present invention, one or more air outlets are set to the substantially interposition of filler strip along its length
It sets.
According to an aspect of the present invention, filler strip is an integral structure, and at least partly width of the filler strip ontology of filler strip is small
In the width of tooth socket, so as to form grooved passageway between filler strip and at least side inner wall of tooth socket.
According to an aspect of the present invention, two of filler strip in the width direction are arranged in axial symmery shape in multiple grooved passageways
Side.
According to another aspect of the present invention, a kind of motor is additionally provided, including the above-mentioned stator for motor.
To sum up, the stator for motor of the embodiment of the present invention, passes through the Double Layer Winding in the tooth socket for being set to stator
Between filler strip at be arranged grooved passageway, enable Double Layer Winding in face of grooved passageway winding surface and radial ducts connect
It is logical.Enable and flowed into grooved passageway into the cooling air-flow in machine cavity, in Double Layer Winding towards grooved passageway
Surface heat exchanging contact can be improved the cooling efficiency to Double Layer Winding, avoid bilayer to directly cool down to Double Layer Winding
It accumulates at the filler strip of the heat that winding generates in-between and causes problem of temperature rise.
Detailed description of the invention
The present invention may be better understood from the description with reference to the accompanying drawing to a specific embodiment of the invention,
In：
By reading detailed description of non-limiting embodiments referring to the drawings, other feature of the invention,
Objects and advantages will become more apparent upon, wherein the same or similar appended drawing reference indicates the same or similar feature.
Fig. 1 is the part-structure diagrammatic cross-section of the motor according to an embodiment of the invention for being equipped with stator；
Fig. 2 is that the filler strip of one embodiment according to the present invention is mounted on the decomposition texture schematic diagram in stator tooth socket；
Fig. 3 is the filler strip of one embodiment according to the present invention in one of stator tooth socket installation condition schematic diagram；
Fig. 4 is schematic top plan view of the filler strip in one of stator tooth socket installation condition of Fig. 3；
Fig. 5 is the schematic perspective view of the filler strip in Fig. 3；
Fig. 6 is the overlooking structure diagram of the filler strip in Fig. 5：
Fig. 7 is the overlooking structure diagram of the filler strip of second embodiment according to the present invention；
Fig. 8 is the overlooking structure diagram of the filler strip of third embodiment according to the present invention；
Fig. 9 is the overlooking structure diagram of the filler strip of the 4th embodiment according to the present invention；
Figure 10 is the overlooking structure diagram of the filler strip of the 5th embodiment according to the present invention；
Figure 11 is the overlooking structure diagram of the filler strip of the 6th embodiment according to the present invention；
Figure 12 is the overlooking structure diagram of the filler strip of the 7th embodiment according to the present invention；
Figure 13 is the overlooking structure diagram of the filler strip of the 8th embodiment according to the present invention；
Figure 14 is the overlooking structure diagram of the filler strip of the 9th embodiment according to the present invention；
Figure 15 is the overlooking structure diagram of the filler strip of the tenth embodiment according to the present invention；
Figure 16 is the overlooking structure diagram of the filler strip of the tenth one embodiment according to the present invention.
Wherein：
1- motor；10- stator；10a- first end；10b- second end；11- rotor；11a- air gap；12- stator support；13-
Cavity；14- cavity；
100- stator core；101- lamination；102- gasket；103- radial ducts；104- tooth socket；105- lower layer winding；
The upper layer 106- winding；108- slot wedge；109- filler strip；110- grooved passageway；111- filler strip monomer；112- filler strip monomer；112a- into
Air port；112b- air outlet；113- filler strip monomer；113a- air inlet；113b- air outlet；114- filler strip monomer；115- filler strip list
Body；115b- air outlet；116- filler strip monomer；116b- air outlet；117- filler strip monomer；117a- air inlet；117b- air outlet；
118- filler strip monomer；118a- air inlet；118b- air outlet；119- filler strip monomer；119b- air outlet；120- filler strip monomer；
120a- air inlet；121- filler strip monomer；121a- air inlet；122- filler strip monomer；122a- air inlet；122b- air outlet；
123- filler strip monomer；123a- air inlet；124- filler strip monomer；124b- air outlet；125- filler strip monomer；125a- air inlet；
126- filler strip monomer；126a- air inlet；127- filler strip monomer；128- filler strip monomer；128a- air inlet；128b- air outlet；
129- filler strip monomer；129a- air inlet；129b- air outlet；130- filler strip monomer；131- filler strip monomer；131a- air inlet；
131b- air outlet；132- filler strip monomer；132a- air inlet；133b- air outlet；133- filler strip ontology；133a- air inlet；
133a '-air inlet；134- filler strip ontology；134a- air inlet；134a '-air inlet；
A- axis.
Specific embodiment
The feature and exemplary embodiment of various aspects of the invention is described more fully below.In following detailed description
In, many details are proposed, in order to provide complete understanding of the present invention.But to those skilled in the art
It will be apparent that the present invention can be implemented in the case where not needing some details in these details.Below to implementation
The description of example is used for the purpose of providing by showing example of the invention and better understanding of the invention.In attached drawing and following
Description in, at least part of known features and technology are not shown, unnecessary fuzzy to avoid causing the present invention；
Also, for clarity, may be exaggerated the thickness of region and layer.Identical appended drawing reference indicates same or similar knot in figure
Structure, thus the detailed description that them will be omitted.In addition, feature described below, structure or characteristic can be with any suitable
Mode be incorporated in one or more embodiments.
The noun of locality of middle appearance described below is direction shown in figure, is not to be determined for motor of the invention
The specific structure of son is defined.In the description of the present invention, it is also necessary to explanation, unless otherwise specific regulation and limit
Fixed, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to detachably connect
It connects, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediate matchmaker can also be passed through
Jie is indirectly connected.For the ordinary skill in the art, visual concrete condition understands above-mentioned term in the present invention
Concrete meaning.
Around Double Layer Winding is equipped in the tooth socket of stator provided in an embodiment of the present invention for motor, in Double Layer Winding
It is provided with the filler strip for separating upper and lower layer winding between upper and lower layer winding, can be avoided motor by the way that the filler strip is arranged
Double Layer Winding phase mutual friction in the process of running, and there is the problem of failure of insulation.And the filler strip in the embodiment of the present invention is set
It is equipped with grooved passageway, to form the cooling duct being connected to radial ducts between Double Layer Winding, Double Layer Winding is enable to obtain
To effective cooling, temperature is avoided to accumulate between Double Layer Winding.Below in an example, only with the default minor structure in motor
It is illustrated for example, still, the stator in the embodiment of the present invention is not limited to this, and in other examples, the stator is also
It can be the outer stator structure in motor.
For a better understanding of the present invention, determine below with reference to Fig. 1 to Figure 16 is according to an embodiment of the present invention for motor
Son is described in detail.
Fig. 1 is the part-structure diagrammatic cross-section of the motor 1 according to an embodiment of the invention for being equipped with stator 10, figure
2 be that the filler strip 109 of one embodiment according to the present invention is mounted on the decomposition texture schematic diagram in the tooth socket 104 of stator 10, Fig. 3
Be one embodiment according to the present invention filler strip 109 in one of the tooth socket 104 of stator 10 installation condition schematic diagram,
In, only illustrate stator 10 along axial direction cut after part-structure, and do not show the overall structure of stator 10, and
The state after three gaskets 102 of position indicated by radial ducts 103 are removed is shown in Fig. 1.According to the present invention one
A embodiment, the stator 10 (hereinafter referred to as stator 10) for motor include：Stator core 100, Double Layer Winding and filler strip
109.Stator core 100 is overrided to form by multiple laminations 101, is arranged between two laminations 101 adjacent in multiple laminations 101
There is gasket 102, to form radial ducts 103 between two laminations 101 adjacent in multiple laminations 101.Double Layer Winding edge
The stator core 100 it is radially superposed in the tooth socket 104 of stator core 100.Axial direction of the filler strip 109 along stator core 100
Be set between Double Layer Winding, and be provided with grooved passageway 110 on filler strip 10 so that in Double Layer Winding towards grooved passageway
110 winding surface is connected to radial ducts 103.
The stator 10 for motor of the embodiment of the present invention is by being supported in Double Layer Winding (i.e. lower layer's winding 105 as a result,
And upper layer winding 106) between filler strip 109 at be arranged grooved passageway 110 mode, enable radial ducts 103 double
Cooling duct is formed between Double Layer Winding under the encapsulation of the two sidewalls of the tooth socket 104 of layer winding and stator 10, and
Make the surface in Double Layer Winding in face of lower layer's winding 105 of grooved passageway 110 and/or upper layer winding 106 by grooved passageway 110
It is connected to the radial ducts 103 being formed between adjacent two lamination 101.In this way, passing through formation and diameter between Double Layer Winding
The mode for the cooling duct being connected to ventilating duct 103, enables the cooling air-flow to circulate in radial ducts 103 via slot
Shape channel 110 is contacted with the surface heat exchanging of lower layer's winding 105 and/or upper layer winding 106 towards grooved passageway 110, thus right
Lower layer's winding 105 and/or upper layer winding 106 are cooled down, and then can be in time by Double Layer Winding in the operational process of motor 1
It generates and the heat being deposited between lower layer's winding 105 and upper layer winding 106 is taken away.
According to one embodiment of present invention, motor 1 includes：Stator 10, rotor 11 and stator support 12, wherein stator
10 are fixed in motor 1 by stator support 12, and rotor 11 is arranged around stator 10, and the edge between stator 10 and rotor 11
It is circumferential to form annulus gap 11a.Also there is cavity 13 at the axial first end 10a of stator 10 inside motor 1, and in stator
There is cavity 14 at 10 axial second end 10b.
Stator 10 (overall structure is not shown in the figure) includes stator core 100 and Double Layer Winding, wherein stator core 100
It is laminated along axial direction by multiple laminations 101 and is constituted, the stator core 100 constituted after laminating is circumferentially arranged to be had and multiple pass through along axial direction
Logical tooth socket 104.And it is provided with gasket 102 between the lamination 101 adjacent two-by-two of multiple laminations 101, mutual
Radial ducts 103 is formed between the every two adjacent lamination 101 separated.Along the radial direction of stator core 100 in tooth socket 104
Stacked Double Layer Winding, i.e. lower layer's winding 105 and upper layer winding 106, and in order to enable lower layer's winding 105 and upper layer winding 106
It is enough separated from each other, filler strip 109 is also equipped between lower layer's winding 105 and upper layer winding 106.
Therefore, for being cooled down to stator core 100, lower layer's winding 105 and upper layer winding 106 inside motor 1
Cooling air-flow flow path i.e. be configured to：Cooling air-flow inside motor 1 is externally entering from 10 axial sides of stator
Cavity 13 and cavity 14 at enter in air gap 11a, and then cooling air-flow then can flow through radial ducts from air gap 11a
103 pairs of stator cores 100 and Double Layer Winding cool down, and finally absorb the cooling air-flow after heat and then reach stator branch
In the cavity of frame 12, and pass through the outside that pipeline is further discharged to motor 1.
It should be noted that the structure in order to preferably show the filler strip 109 in following embodiment of the present invention, following
In the attached drawing of embodiment, due to filler strip 109 width substantially with the groove width of tooth socket 104 (i.e. between 104 two sides inner wall of tooth socket away from
From) equal, and equal length of the length of filler strip 109 substantially with tooth socket 104, so the void positioned at 109 periphery of filler strip shown
The inner surface contour of tooth socket 104 when line outline border (being solid line with 109 outer profile intersection of filler strip) is along the radial observation of stator 10
Line (while also in part outer contour of lower layer's winding 105 of 109 lower section of filler strip), for the ease of distinguishing, Fig. 1 to Figure 16
In the filler strip 109 when being then along the radial observation of stator 10 of the part with hatching entity structure.In addition, in following embodiment
The thickness direction of the filler strip 109 of appearance is the direction being overlapped with the radial direction of stator 10 shown in figure, the width of filler strip 109
Direction is the side inner wall of tooth socket 104 to the direction of other side inner wall, and the length direction of filler strip 109 is then the axis with stator 10
The direction being overlapped to direction.In addition, axially and radially all referring to along stator 10 axially and radially for middle appearance is described below.
Following embodiment will carry out the structure for the filler strip 109 being installed between lower layer's winding 105 and upper layer winding 106
It illustrates.Please also refer to Fig. 4, Fig. 5 and Fig. 6, wherein Fig. 4 is one of the filler strip 109 of Fig. 3 in the tooth socket 104 of stator 10
The schematic top plan view of kind installation condition；Fig. 5 is the schematic perspective view of the filler strip 109 in Fig. 3；Fig. 6 is the filler strip in Fig. 5
109 overlooking structure diagram.In the present embodiment, filler strip 109 is the separate structure being made of multiple filler strip monomers, multiple pads
Monomer separates setting each other, with the formation grooved passageway 110 between multiple filler strip monomers.And the slot in the present embodiment
Shape channel 110 is arranged in the two sides of filler strip 109 in the form of axisymmetric along the length direction of filler strip 109, and the axis A in figure
(i.e. the center line for being located at axial middle position of stator 10) is the symmetry axis of grooved passageway 110.
Illustratively, the filler strip 109 in the present embodiment includes five sections of filler strip monomers for separating setting each other, wherein
Positioned at 104 approximately mid way between of tooth socket (ignore lower layer's winding 105 positioned at the lower section of filler strip 109 for the time being, it is same in following embodiments
Filler strip monomer 111 so) is string configuration, and width (the i.e. tooth socket 104 of the width of filler strip monomer 111 and tooth socket 104
The distance between two sides inner wall) it is equal.Two sections of filler strip monomers 112 are identical with two sections of 113 structures of filler strip monomer, are elongated strip shaped
Structure, wherein two sections of filler strip monomers 112 are relative to each other and are separatedly arranged in the same side of axis A, and two sections of filler strip monomers
113 are symmetrically arranged at the other side of axis A relative to two sections of filler strip monomers 112.Two sections of filler strip monomers 112 and two sections of filler strips
The also arrangement separated by a distance between filler strip monomer 111 respectively in axial direction of monomer 113, so that two grooved passageways 110
In the corresponding radial ducts 103 being located at 104 two sides inner wall of tooth socket in the two sides axis A, it is respectively formed two opposite air outlets
112b and two opposite air outlet 113b, above-mentioned " certain distance " can be according to the width of the air gap of radial ducts 103
Or the air output actually required of grooved passageway 110 determines (" certain distance " in following embodiments is identical as the present embodiment).
Multiple filler strip monomers in through this embodiment are arranged according to preset placement position interval between each other, so that pad
Item 109 forms two grooved passageways 110 between Double Layer Winding, and two grooved passageways 110 are configured to：Respectively close to filler strip
109 along its length both side ends setting, and two grooved passageways 110 in the form of axisymmetric along the length of filler strip 109
The two sides of axis A are arranged in direction.Also, two grooved passageways 110 are respectively in the both side ends along its length of filler strip 109
It opens wide, to form air inlet 112a and air inlet 113a respectively in the both side ends of filler strip 109.In this way, grooved passageway 110
It is connected respectively by air inlet 112a and air inlet 113a with cavity 13 and cavity 14.
Filler strip monomer also makes two grooved passageways 110 in axis according to the setting of preset placement position interval between each other
The corresponding radial ducts 103 being located at 104 two sides inner wall of tooth socket in the two sides A, be respectively formed two opposite air outlet 112b with
And two opposite air outlet 113b, it is opposite to refer to that two sides of each pair of air outlet along 109 width direction of filler strip are relatively arranged.
In the present embodiment, in multiple air outlets of grooved passageway 110 and multiple radial ducts 103 of stator core 100 at least
Partially radially ventilating duct 103 is arranged correspondingly, that is to say, that each air outlet of grooved passageway 110 corresponds to tooth socket 104
A radial ducts 103 at the inner wall of side.Also, two opposite air outlet 112b and two opposite air outlets
113b is close to the middle position of filler strip 109.In this way, grooved passageway 110 can pass through two pairs of opposite air outlets and position respectively
Radial ducts 103 in 104 two sides of tooth socket is connected.
The filler strip 109 of the present embodiment by setting two grooved passageways 110, can be formed between Double Layer Winding two it is cold
But channel, and two air inlets are formed respectively in the both side ends of filler strip 109 along its length, along 109 width direction of filler strip
Two sides respectively correspond radial ducts 103 formed two pairs of air outlets.It therefore, can into the cooling air-flow in 1 cavity of motor
Enter the cooling duct of two sides (i.e. respectively close to filler strip 109 along length via the air inlet 112a and air inlet 113a at both ends respectively
Spend the grooved passageway 110 of the both side ends in direction) in.To lower layer's winding 105 and upper layer winding 106 towards grooved passageway 110
Surface carry out it is directly cooling after, cooling air-flow is respectively via the two pairs of air outlet streams arranged along 109 width direction two sides of filler strip
Enter in radial ducts 103 corresponding with two pairs of air outlets, to make to absorb the cooling after the heat of Double Layer Winding generation
Air-flow can flow at the cavity of stator support 12 via radial ducts 103, and then can will be after heat absorption by pipeline
Cooling air-flow is excluded to motor 1.
It is directly contacted with Double Layer Winding heat exchange between lower layer's winding 105 and upper layer winding 106 by cooling air-flow cold
But mode cools down Double Layer Winding, can effectively improve the cooling efficiency of Double Layer Winding, moreover it is possible to avoid between Double Layer Winding
The problem of temperature rise that the heat of accumulation occurs due to cannot effectively be cooled down in time.Meanwhile increasing between Double Layer Winding layer
Cooling duct can also reduce the ventilation resistance inside motor 1, so as to increase the wind of the blower for providing cooling air-flow
Amount, and then the whole cooling effect in 1 inside of motor is promoted, the reliability of motor 1 is improved, increases output power, and further drop
The temperature of low Double Layer Winding guarantees the stable operation of motor 1.Alternatively, when keeping entering the constant situation of 1 inside air quantity of motor
Under, the requirement (such as reducing blower sizes) to fan performance can also be reduced, so as to reduce the production cost of motor 1.
In addition, mode of the stator 10 of the embodiment of the present invention due to ventilating and cooling, can its thermic load of increase appropriate, to mitigate copper
With the weight of magnet steel, and then reduce motor 1 cost.
And there are points that winding temperature is in both ends high, middle low in the axial direction in the existing radial ventilation type of cooling
Cloth, and radially in the distribution that upper and lower temperature is low, medium temperature is high, cause winding all to there is larger temperature upwards in the diameter of axle in this way
Difference.By the way that grooved passageway 110 to be arranged close to the both side ends of filler strip 109 along its length, respectively close to Double Layer Winding
Both side ends position form two cooling ducts, so as to reduce winding in the temperature difference present on axis radial direction, and then make double
Layer winding is uniformly cooled down.
Axial length of certain embodiment of the present invention for filler strip monomer 112, filler strip monomer 111 and filler strip monomer 113
It is not limited.In the present embodiment, in order to cool down to along axial greater length of Double Layer Winding, it is located at interposition
The axial length for the filler strip monomer 111 set is less than the filler strip monomer 112 of two sides and the axial length of filler strip monomer 113, so that
Grooved passageway 110 has enough axial lengths.And the axis of filler strip monomer 112, filler strip monomer 111 and filler strip monomer 113
The position that the air outlet of grooved passageway 110 is determined to length, when air outlet depends on axial ray A, then air outlet and close to axial
The radial ducts 103 in middle position is corresponding.Since cooling air-flow is in the radial ducts 103 close to axial middle position
Flow velocity it is very fast, therefore air outlet can be accelerated to the flow velocity of cooling air-flow in grooved passageway 110 by axial ray A setting, into
And it can be improved the cooling efficiency to Double Layer Winding.
Fig. 7 is the overlooking structure diagram of the filler strip 109 of second embodiment according to the present invention, is implemented with above-mentioned first
Identical example is that the filler strip 109 in the present embodiment is similarly the separate structure being made of multiple filler strip monomers, multiple filler strip monomers
Separate setting, each other to form grooved passageway 110 between multiple filler strip monomers.But the flute profile in the present embodiment is logical
Road 110 penetrates through setting along the length direction of filler strip 109, and grooved passageway 110 is axial symmetry knot in the length direction of filler strip 109
Structure, the axis A in figure are the symmetry axis of grooved passageway 110.
Illustratively, filler strip 109 includes ten sections of filler strip monomers for separating setting each other in the present embodiment, wherein position
It is set in the inner wall of 104 approximately mid way between of tooth socket and the shorter two sections of filler strip monomers 114 of length respectively close to 104 two sides of tooth socket
It sets.In addition, the shorter two sections of filler strip monomers 115 and two sections of filler strip monomers 116 of length are set to symmetrically to each other relative to axis A
The axial sides of two sections of filler strip monomers 114, and two sections of filler strip monomers 115 and two sections of filler strip monomers 116 respectively in filler strip list
Body be equally separated close to 104 two sides of tooth socket inner wall be arranged.And the longer two sections of filler strip monomers 117 of length and two sections of pads
Monomer 118 is set to the axially outermost of tooth socket 104, and two sections of 117 Hes of filler strip monomer relative to axis A symmetrically to each other
Two sections of filler strip monomers 118 respectively in filler strip monomer be equally separated inner wall close to 104 two sides of tooth socket be arranged.Also,
Two sections of filler strip monomers 115 and two sections of filler strip monomers 116 are separated by a distance between two sections of filler strip monomers 114 respectively in axial direction
Arrangement.Two sections of filler strip monomers 117 and two sections of filler strip monomers 118 are padded with its opposite be located at axially inner side two section respectively in axial direction
(with above-mentioned " certain distance ") arrangement separated by a distance between monomer 115 and two sections of filler strip monomers 116.So that
Grooved passageway 110 corresponds to the radial ducts 103 being located at 104 two sides inner wall of tooth socket in the two sides of axis A, wide along filler strip 109
The two sides in degree direction are respectively formed two opposite air outlet 115b, two opposite air outlet 116b, two opposite outlet air
117b and two opposite air outlet 118b of mouth,
Multiple filler strip monomers in through this embodiment are arranged according to preset placement position interval between each other, so that pad
Item 109 formed between Double Layer Winding an edge axially through grooved passageway 110, and penetrate through grooved passageway 110 be configured
At：It is extended in the form of axisymmetric along the two sides of the length direction of filler strip 109, and grooved passageway 110 is respectively in filler strip
109 both side ends along its length are opened wide, to form air inlet 117a and air inlet respectively in the both side ends of filler strip 109
118a.In this way, grooved passageway 110 can be connected by air inlet 117a and air inlet 118a with cavity 13 and cavity 14 respectively
It is logical.
Filler strip monomer also makes grooved passageway 110 axis A's according to the setting of preset placement position interval between each other
The corresponding radial ducts 103 for being located at 104 two sides inner wall of tooth socket in two sides, the two sides along 109 width direction of filler strip are respectively formed two
A opposite air outlet 115b, two opposite air outlet 116b, two opposite air outlet 117b and two it is opposite go out
Air port 118b is opposite to refer to that two sides of each pair of air outlet along 109 width direction of filler strip are relatively arranged.In the present embodiment,
At least partially radial ventilating duct in multiple air outlets of grooved passageway 110 and multiple radial ducts 103 of stator core 100
103 are arranged correspondingly.Also, two opposite air outlet 115b, two opposite air outlet 116b, two it is opposite go out
Air port 117b and two opposite air outlet 118b is close to the middle position of filler strip 109.In this way, grooved passageway 110
It is connected respectively by four pairs of opposite air outlets with the radial ducts 103 for being located at 104 two sides of tooth socket.
The filler strip 109 of the present embodiment can form one by the grooved passageway 110 of setting perforation between Double Layer Winding
Along axially through cooling duct, and two air inlets are formed respectively in the both side ends of filler strip 109 along its length, along padding
The two sides of 109 width direction of item respectively correspond radial ducts 103 and form four pairs of air outlets.Therefore, into 1 cavity of motor
Cooling air-flow can enter in grooved passageway 110 via the air inlet 117a and air inlet 118a at both ends respectively, with lower layer's winding
105 and upper layer winding 106 carry out heat exchange contact.The cooling air after heat exchange contact is carried out with lower layer winding 105 and upper layer winding 106
It flows through and separately flows into radial direction corresponding with four pairs of air outlets by the four pairs of air outlets arranged along the two sides of 109 width direction of filler strip
In ventilating duct 103, so that the cooling air-flow for enabling to absorb after the heat of Double Layer Winding generation is flowed via radial ducts 103
Enter to the cavity of stator support 12, and then can be removed to by pipeline outside motor 1.
Filler strip 109 in the present embodiment can equally be flowed by grooved passageway 110 for cooling air-flow, to lower layer's winding
105 and upper layer winding 106 directly cooled down, therefore the present embodiment have and in above-described embodiment to Double Layer Winding using straight
The identical advantage of cooling mode is connect, therefore is not repeated here.It should be noted that the slot on filler strip 109 in the present embodiment
Shape channel 110 due to can be formed between lower layer's winding 105 and upper layer winding 106 along axially through cooling duct, and
Four pairs of opposite air outlets are respectively formed along the two sides of 109 width direction of filler strip, so as to increase the air output of air outlet, into
One step reduces the ventilation resistance in cooling duct, accelerates the flow velocity of cooling air-flow in cooling duct, and then can further increase
The cooling efficiency of lower layer's winding 105 and upper layer winding 106 improves the safety and reliability that motor 1 is run, while improving motor
1 power density.
Certain the present embodiment similarly for filler strip monomer 114, filler strip monomer 115, filler strip monomer 116, filler strip monomer 117 with
And the axial length of filler strip monomer 118 is not limited.
Fig. 8 is the overlooking structure diagram of the filler strip 109 of third embodiment according to the present invention, is implemented with above-mentioned first
Identical example is that the filler strip 109 in the present embodiment is similarly the separate structure being made of multiple filler strip monomers, multiple filler strip monomers
Separate setting, each other to form grooved passageway 110 between multiple filler strip monomers.And the grooved passageway in the present embodiment
110 are arranged in the two sides of filler strip 109 in the form of axisymmetric along the length direction of filler strip 109, and the axis A in figure is grooved passageway
110 symmetry axis.
Illustratively, the filler strip 109 in the present embodiment includes five sections of filler strip monomers for separating setting each other, wherein
Filler strip monomer 119 positioned at 104 approximately mid way between of tooth socket is string configuration, and the width of filler strip monomer 119 is less than tooth
The width of slot 104, and two sections of filler strip monomers 120 are identical with two sections of 121 structures of filler strip monomer, are elongate strip structure, and two
Section filler strip monomer 120 is arranged in the same side of axis A with being separated, that is, two sections of filler strip monomers 120 are respectively close to tooth socket 104
Two sides inner wall arrangement.Two sections of filler strip monomers 121 are symmetrically arranged at the other side of axis A relative to two sections of filler strip monomers 120,
And two sections of filler strip monomers 120 and two sections of filler strip monomers 121 are also separated by a spacing between filler strip monomer 119 respectively in axial direction
From arrangement.
Multiple filler strip monomers in through this embodiment are arranged according to preset placement position interval between each other, so that pad
Item 109 forms two grooved passageways 110 between Double Layer Winding, and two grooved passageways 110 are configured to：Respectively close to filler strip
109 along its length both side ends setting, and two grooved passageways 110 in the form of axisymmetric along the length of filler strip 109
The two sides of axis A are arranged in direction (with the two sides of filler strip 109).Two grooved passageways 110 are respectively in filler strip 109 along length side
To both side ends open wide, to form air inlet 120a and air inlet 121a respectively in the both side ends of filler strip 109.In this way, slot
Shape channel 110 can be connected by air inlet 120a and air inlet 121a with cavity 13 and cavity 14 respectively.Meanwhile also making
Two grooved passageways 110 in the periphery of filler strip monomer 119 form the air outlet 119b that is circumferentially connected to (what this was circumferentially connected at this time go out
Air port 119b is flowed at the same time as a part of the grooved passageway 110 of two sides for cooling air-flow), in the present embodiment, flute profile
The air outlet 119b in channel 110 can correspond to multiple radial ducts 103, that is to say, that each outlet air of grooved passageway 110
Mouth can be with multiple radial ventilations in at least partially radial ventilating duct 103 of multiple radial ducts 103 of stator core 100
Road 103 is corresponding.In this way, grooved passageway 110 can pass through air outlet 119b that this is circumferentially connected to and corresponding multiple radial directions
Ventilating duct 103 is connected.
Filler strip 109 in the present embodiment is likewise supplied with the advantage same as the filler strip 109 in one embodiment, therefore no longer
It is repeated here.But it should be recognized that in the present embodiment, due to two sides grooved passageway 110 air outlet 119b with it is multiple
Radial ducts 103 is corresponding, so as to increase the air output of air outlet, further decreases the ventilation resistance in cooling duct
Power, accelerates the flow velocity of cooling air-flow in cooling duct, and then can further increase lower layer's winding 105 and upper layer winding 106
Cooling efficiency improves the safety and reliability that motor 1 is run.
Axial length of certain the present embodiment similarly for filler strip monomer 119, filler strip monomer 120 and filler strip monomer 121
It is not limited.
Fig. 9 is the overlooking structure diagram of the filler strip 109 of the 4th embodiment according to the present invention, is implemented with above-mentioned second
Identical example is that the filler strip 109 in the present embodiment is similarly the separate structure being made of multiple filler strip monomers, multiple filler strip monomers
Separate setting, each other to form grooved passageway 110 between multiple filler strip monomers.And the grooved passageway in the present embodiment
110 penetrate through setting along the length direction of filler strip 109, and the axis A in figure is the symmetry axis of grooved passageway 110.
Illustratively, the filler strip 109 in the present embodiment includes four sections of filler strip monomers for separating setting each other, wherein
Two sections of filler strip monomers 122 are identical with two sections of 123 structures of filler strip monomer, are elongate strip structure, and two sections of filler strip monomers 122 that
This is separatedly arranged in the same side of axis A, and two sections of filler strip monomers 123 are arranged symmetrically relative to two sections of filler strip monomers 122
In the other side of axis A.And two sections of filler strip monomers 122 and two sections of filler strip monomers 123 are each other along an axially spaced spacing
From arrangement, so that form larger open between two sections of filler strip monomers 122 and two sections of filler strip monomers 123, i.e. grooved passageway 110
Air outlet 122b.
Multiple filler strip monomers in through this embodiment are arranged according to preset placement position interval between each other, so that pad
Item 109 formed between Double Layer Winding an edge axially through grooved passageway 110, and penetrate through grooved passageway 110 be configured
At：Grooved passageway 110 is axially symmetric structure in the length direction of filler strip 109, and grooved passageway 110 is respectively in filler strip 109
Both side ends along its length are opened wide, to form air inlet 122a and air inlet 123a respectively in the both side ends of filler strip 109.
In this way, grooved passageway 110 can be connected by air inlet 122a and air inlet 123a with cavity 13 and cavity 14 respectively.Together
When, the grooved passageway 110 for penetrating through setting has been formed by the opening between two sections of filler strip monomers 122 and two sections of filler strip monomers 123
Complete open air outlet 122b, in the present embodiment, the air outlet 122b of grooved passageway 110 can correspond to multiple radial ducts
103.In this way, grooved passageway 110 can pass through the open air outlet 122b completely and corresponding multiple radial ducts 103
It is connected.
Filler strip 109 in the present embodiment is likewise supplied with the advantage same as the filler strip 109 in second embodiment, therefore no longer
It is repeated here.But it should be recognized that in the present embodiment, since grooved passageway 110 passes through two sections of filler strip monomers 122 and two sections
Opening between filler strip monomer 123 forms complete open air outlet 122b, can further increase the outlet air of grooved passageway 110
Mouthful air output, to accelerate the flow velocity of cooling air-flow in cooling duct, can further increase lower layer's winding 105 and upper layer around
The cooling efficiency of group 106.
Certain the present embodiment is not limited similarly for the axial length of filler strip monomer 122 and filler strip monomer 123.
Figure 10 is the overlooking structure diagram of the filler strip 109 of the 5th embodiment according to the present invention, real with above-mentioned third
Apply that example is identical to be, the filler strip 109 in the present embodiment is similarly the separate structure being made of multiple filler strip monomers, multiple filler strip lists
Body separates setting each other, to form grooved passageway 110 between multiple filler strip monomers.And the flute profile in the present embodiment is logical
The two sides of filler strip 109 are arranged in road 110 in the form of axisymmetric along the length direction of filler strip 109, and the axis A in figure is logical for flute profile
The symmetry axis in road 110.
Illustratively, the filler strip 109 in the present embodiment includes three sections of filler strip monomers for separating setting each other, wherein
Filler strip monomer 124 includes three parts of stepped setting, and the side inner wall of the abutting tooth socket 104 of filler strip monomer 124 is set
It sets.Filler strip monomer 124 is whole using axis A as symmetry axis, wherein part and filler strip monomer of the filler strip monomer 124 by axial ray A
124 compare close to two parts of axial sides with wider width, also, filler strip monomer 124 is by the part of axial ray A
Width is less than the groove width of tooth socket 104.The close axial sides of filler strip monomer 125 and filler strip monomer 126 relative to filler strip monomer 124
Two parts, be close to the other side of tooth socket 104 and relative axis A be symmetrically arranged, and filler strip monomer 125 and filler strip list
Body 126 leans on the part setting separated by a distance of axial ray A with filler strip monomer 124 respectively in axial direction, to lean in filler strip monomer 124
Under the restriction effect of the part of axial ray A, make the opening that strip is formed between filler strip monomer 125 and filler strip monomer 126, i.e. this reality
Apply the air outlet 124b of grooved passageway 110 in example.
Multiple filler strip monomers in through this embodiment are arranged according to preset placement position interval between each other, so that pad
Item 109 forms two grooved passageways 110 between Double Layer Winding, and two grooved passageways 110 are configured to：Respectively close to filler strip
109 along its length both side ends setting, and two grooved passageways 110 in the form of axisymmetric along the length of filler strip 109
The two sides of axis A are arranged in direction.Two grooved passageways 110 are opened wide in the both side ends along its length of filler strip 109 respectively,
To form air inlet 125a and air inlet 126a respectively in the both side ends of filler strip 109.In this way, grooved passageway 110 can be distinguished
It is connected by air inlet 125a and air inlet 126a with cavity 13 and cavity 14.Meanwhile axial ray is leaned in filler strip monomer 124
Under the restriction effect of the part of A, so that forming the opening of strip, i.e. the present embodiment between filler strip monomer 125 and filler strip monomer 126
The air outlet 124b of middle grooved passageway 110, in the present embodiment, the air outlet 124b of grooved passageway 110 can correspond to multiple diameters
To ventilating duct 103.In this way, grooved passageway 110 can pass through the air outlet 124b of the strip and corresponding multiple radial ventilations
Road 103 is connected.
Filler strip 109 in the present embodiment is likewise supplied with the advantage identical as the filler strip 109 in third embodiment, therefore no longer
It is repeated here.Axial length of certain the present embodiment similarly for filler strip monomer 124, filler strip monomer 125 and filler strip monomer 126
It is not limited.
Figure 11 is the overlooking structure diagram of the filler strip 109 of the 6th embodiment according to the present invention, with above-mentioned first reality
Apply that example is identical to be, the filler strip 109 in the present embodiment is similarly the separate structure being made of multiple filler strip monomers, multiple filler strip lists
Body separates setting each other, to form grooved passageway 110 between multiple filler strip monomers.But the flute profile in the present embodiment
Channel 110 is not symmetrical structure.
Illustratively, the filler strip 109 in the present embodiment includes three sections of filler strip monomers for separating setting each other, wherein
Filler strip ontology 127 includes three parts of stepped setting, part and the width of tooth socket 104 of the filler strip monomer 127 by axial ray A
Spend equal, and filler strip monomer 127 is in elongated strip close to two parts of axial sides, and respectively close to the phase of tooth socket 104
The inner wall setting tossed about.Filler strip monomer 128 and filler strip monomer 129 positioned at the two sides axis A are respectively relative to filler strip monomer 127 and lean on
Two parts of nearly axial sides, the inner wall close to the opposite side of tooth socket 104 is arranged, and filler strip monomer 128 and filler strip monomer
129 keep certain distance setting by the part of axial ray A with filler strip monomer 127 respectively in axial direction.Filler strip monomer 127 leans on as a result,
The radial ducts 103 that 104 inner wall side of tooth socket is corresponded between the part of axial ray A and filler strip monomer 128 forms air outlet
128b, and filler strip monomer 127 corresponds to the radial direction of the 104 inner wall other side of tooth socket between the part and filler strip monomer 129 of axial ray A
103 shape air outlet 129b of ventilating duct.
Multiple filler strip monomers in through this embodiment are arranged according to preset placement position interval between each other, so that pad
Item 109 forms two grooved passageways 110 between Double Layer Winding, and two grooved passageways 110 are configured to：Respectively close to filler strip
109 both side ends setting along its length.Two grooved passageways 110 are respectively in the two side ends along its length of filler strip 109
Portion is opened wide, to form air inlet 128a and air inlet 129a respectively in the both side ends of filler strip 109.In this way, grooved passageway 110 is
It can be connected respectively by air inlet 128a and air inlet 129a with cavity 13 and cavity 14.Meanwhile also making filler strip monomer
127 radial ducts 103 that 104 side inner wall of tooth socket is corresponded between the part and filler strip monomer 128 of axial ray A form outlet air
Mouth 128b, and filler strip monomer 127 corresponds to the diameter of 104 other side inner wall of tooth socket between the part and filler strip monomer 129 of axial ray A
To 103 shape air outlet 129b of ventilating duct.That is, in the present embodiment, the multiple air outlets and stator core 100 of grooved passageway 110
Multiple radial ducts 103 at least partially radial ventilating duct 103 be arranged correspondingly.In this way, grooved passageway 110 is
It can be connected respectively by being located at the air outlet 128b and air outlet 129b of opposite side with corresponding two radial ducts 103
It is logical.
Figure 12 is the overlooking structure diagram of the filler strip 109 of the 7th embodiment according to the present invention, with above-mentioned 6th reality
Apply that example is identical to be, the filler strip 109 in the present embodiment is similarly the separate structure being made of multiple filler strip monomers, multiple filler strip lists
Body separates setting each other, to form grooved passageway 110 between multiple filler strip monomers.But the flute profile in the present embodiment
Channel 110 is not symmetrical structure.
Illustratively, the filler strip 109 in the present embodiment includes three sections of filler strip monomers for separating setting each other.Filler strip sheet
Body 30 includes three parts of stepped setting, wherein the face phase tooth socket 104 of the part by axial ray A of filler strip monomer 130
The end face of two sides inner wall, along the width direction of filler strip 109, recessed formed is located at the step surfaces of two sides respectively inwards, and filler strip monomer
130 close to two parts of axial sides be in elongated strip, and is arranged respectively close to the inner wall of the opposite side of tooth socket 104.Position
Filler strip monomer 131 and filler strip monomer 132 in axis two sides are respectively relative to two portions of the filler strip monomer 130 close to axial sides
Point close to tooth socket 104 opposite side inner wall setting, and filler strip monomer 131 and filler strip monomer 132 respectively in axial direction with filler strip
The part by axial ray A of monomer 130 keeps certain distance setting.The part by axial ray A of filler strip monomer 130 is logical as a result,
Cross between the step surface of one side and filler strip monomer 131 formed strip opening 131b, and filler strip monomer 130 lean on axial ray
The opening 132b of strip is formed between the step surface and filler strip monomer 132 that the part of A passes through its other side.
Multiple filler strip monomers in through this embodiment are arranged according to preset placement position interval between each other, so that pad
Item 109 forms two grooved passageways 110 between Double Layer Winding, and two grooved passageways 110 are configured to：Respectively close to filler strip
109 both side ends setting along its length.Two grooved passageways 110 are respectively in the two side ends along its length of filler strip 109
Portion is opened wide, to form air inlet 131a and air inlet 132a respectively in the both side ends of filler strip 109.In this way, grooved passageway 110 is
It can be connected respectively by air inlet 131a and air inlet 132a with cavity 13 and cavity 14.Meanwhile also making grooved passageway
The 110 corresponding radial ducts 103 being located at 104 two sides inner wall of tooth socket are respectively formed strip air outlet 131b and strip goes out
Air port 132b, that is, the air outlet of the grooved passageway 110 in the present embodiment can correspond to multiple radial ducts 103,.In this way, slot
Shape channel 110 can respectively by be located at opposite side air outlet 131b and air outlet 132b respectively with corresponding multiple radial directions
Ventilating duct 103 is connected.
Filler strip 109 in the present embodiment is likewise supplied with the advantage identical as the filler strip 109 in third embodiment, therefore no longer
It is repeated here.Axial length of certain the present embodiment similarly for filler strip monomer 130, filler strip monomer 131 and filler strip monomer 132
It is not limited.
Figure 13 is the overlooking structure diagram of the filler strip 109 of the 8th embodiment according to the present invention, in the present embodiment, pad
Item 109 is an integral structure, and its by make filler strip ontology 133 at least partly width be less than tooth socket 104 width, with
At least side inner wall of tooth socket 104 encloses jointly to be set to form grooved passageway 110.Grooved passageway 110 in the present embodiment is with axial symmetry
Form the two sides of filler strip 109 are set along the length direction of filler strip 109, and axis A (the i.e. axial centre of stator 10 in figure
Line) be grooved passageway 110 symmetry axis.
Illustratively, the filler strip ontology 133 of the filler strip 109 in the present embodiment is configured to integral structure comprising is in
The three parts structure of ladder-like setting, wherein filler strip ontology 133 by axial ray A part be strip structure, and width with
The equivalent width of tooth socket 104.And filler strip ontology 133 is in elongated strip, and filler strip ontology close to two parts of axial ends
133 are less than the width of tooth socket 104 close to the width of two parts of axial ends, and are symmetrically disposed in pad relative to axis A
The axial sides of ontology 133 by the part of axial ray A.
The filler strip 109 of the present embodiment is by the way that filler strip ontology 133 is integrally arranged according to above structure, in filler strip ontology
133 form symmetrical four two-by-two relative to axis A between two parts of axial ends and the two sides inner wall of tooth socket 104
Grooved passageway 110, while also the two sides of filler strip 109 in the width direction are arranged in axial symmery shape in four grooved passageways 110,
That is, four grooved passageways 110 are all axially symmetric structure on the length direction of filler strip 109 and width direction.Four grooved passageways
110 open wide in the both side ends along its length of filler strip 109 respectively, in a side end along its length for filler strip 109
Two air inlet 133a relative to each other are formed, and are formed opposite to each other in the end side along its length of filler strip 109
Two air inlet 133a '.In this way, grooved passageway 110 can pass through two air inlet 133a and two air inlet 133a ' respectively
It is connected with cavity 13 and cavity 14.Led to by four grooved passageways 110 in this present embodiment with respect to tooth socket 104 to be open
Road, so four grooved passageways 110 itself can be used as air outlet relative to the opening that the two sides inner wall of tooth socket 104 is formed, that is,
The air outlet of grooved passageway 110 is able to correspond to multiple radial ducts 103 in the present embodiment.In this way, grooved passageway 110 is
Can directly it be connected with corresponding multiple radial ducts 103.
The filler strip 109 of the present embodiment by its at both side ends position along its length with tooth socket 104 two
Grooved passageway 110 is set between the inner wall of side, four coolings can be formed between the Double Layer Winding at axial ends position
Channel, and two pairs of air inlets are formed respectively in the both side ends of filler strip 109 along its length, and along 109 width direction of filler strip
Two sides respectively correspond radial ducts 103 formed opened type air outlet (i.e. each air outlet of grooved passageway 110 corresponds to multiple
Radial ducts 103).It therefore, can be respectively via two air inlet 133a at both ends into the cooling air-flow in 1 cavity of motor
Enter cooling duct (the both side ends position i.e. respectively close to filler strip 109 along its length of two sides with two air inlet 133a '
The grooved passageway 110 at place) in.After directly being cooled down to lower layer's winding 105 and upper layer winding 106, cooling air-flow is via edge
The air outlet (i.e. the opening of grooved passageway 110 itself formation) of the two sides arrangement of 109 width direction of filler strip separately flows into and outlet air
In the corresponding multiple radial ducts 103 of mouth, to enable to absorb the cooling air-flow after the heat of Double Layer Winding generation
It flows at the cavity of stator support 12, and then can be removed to by pipeline outside motor 1 via radial ducts 103.
Double Layer Winding can be carried out by the grooved passageway 110 at both ends by filler strip 109 in this present embodiment directly cold
But, thus its have the advantages that it is identical as above-mentioned one embodiment.It but is integral type by filler strip 109 in this present embodiment
Structure, therefore the structure and installation procedure of filler strip 109 can be simplified.And by grooved passageway 110 itself with it is corresponding more
The mode that a radial ducts 103 is connected to, air output at the air outlet that can increase grooved passageway 110 while, also simplify
The structure of air outlet.Certain embodiment of the present invention is not limited the axial length of the three parts structure of filler strip 109.For
It can be cooled down to along axial greater length of Double Layer Winding, illustratively, the part by axial ray A of filler strip 109
Axial length can be less than it close to the axial length of two parts of axial ends, and then can be improved the cooling of Double Layer Winding
Efficiency.
Figure 14 is the overlooking structure diagram of the filler strip 109 of the 9th embodiment according to the present invention, the pad in the present embodiment
Articles 109 similar to the filler strip 109 in above-mentioned 8th embodiment, and the filler strip 109 of the present embodiment is an integral structure, and it is logical
The width for making at least partly width of filler strip ontology 134 be less than tooth socket 104 is crossed, with common at least side inner wall of tooth socket 104
It encloses and sets to form grooved passageway 110.Grooved passageway 110 in the present embodiment is axially symmetric structure in the length direction of filler strip 109.Figure
In axis A (i.e. the longitudinal center line of stator 10) be grooved passageway 110 symmetry axis.
Filler strip 109 in the present embodiment and the filler strip 109 in above-mentioned 8th embodiment the difference is that, this implementation
The filler strip ontology 134 of filler strip 109 in example is whole in long strip, and the width of 134 entirety of filler strip ontology is respectively less than tooth socket 104
Width, i.e. two grooved passageways 110 respectively along filler strip 109 length direction penetrate through setting.Make filler strip 109 on its edge in this way
Two grooved passageways 110 are formed between the two sides of width direction and the two sides inner wall of tooth socket 104, that is, the shape between Double Layer Winding
At two it is opposite and along axially through cooling duct, and then the cooling duct that can be penetrated through by two carries out Double Layer Winding
It is cooling.Grooved passageway 110 forms two air inlet 134a relative to each other in a side end along its length for filler strip 109,
And two air inlet 134a ' relative to each other are formed in the end side along its length of filler strip 109.In this way, flute profile is logical
Road 110 can be connected by two air inlet 134a and two air inlet 134a ' with cavity 13 and cavity 14 respectively.By
Two grooved passageways 110 in this present embodiment are open channel with respect to tooth socket 104, so two grooved passageway 110
Body can be used as air outlet relative to the opening that the two sides inner wall of tooth socket 104 is formed, that is, grooved passageway 110 in the present embodiment
Air outlet is able to correspond to multiple radial ducts 103.In this way, grooved passageway 110 can directly with corresponding multiple diameters
It is connected to ventilating duct 103.
Filler strip 109 in the present embodiment have the advantages that it is identical as the 8th above-mentioned filler strip 109 of embodiment, but need
It is noted that the length direction by grooved passageway 110 in this present embodiment along filler strip 109 penetrates through setting, therefore can be into
One step reduces the ventilation resistance in grooved passageway 110, accelerates the flow velocity of cooling air-flow in cooling duct, so as to further mention
The cooling efficiency of high lower layer's winding 105 and upper layer winding 106, and then improve the safety and reliability that motor 1 is run.In addition,
Be in above-mentioned 8th embodiment and the 9th embodiment be formed simultaneously two grooved passageways 110 in 109 two sides of filler strip, but
It is that the embodiment of the present invention is not limited to this, in other examples, filler strip 109 can also be only logical in one side setting flute profile
Road 110, that is, grooved passageway 110 is formed between filler strip 109 and the side inner wall of tooth socket 104.
The structure of the grooved passageway 110 of the filler strip 109 of the embodiment of the present invention is not limited to above-mentioned be symmetrically arranged along axis A
Structure in the two sides of filler strip 109 along its length, in other examples, structure of the grooved passageway 110 in the two sides axis A
It can also be arranged differently than.Figure 15 is the overlooking structure diagram of the filler strip 109 of the tenth embodiment according to the present invention, in this reality
It applies in example, the grooved passageway 110 of filler strip 109 be not axially symmetric structure along 109 length direction of filler strip.And filler strip 109 includes the
Filler strip monomer 111 in one embodiment and two sections of filler strip monomers 113 positioned at 111 side of filler strip monomer, and filler strip monomer
111 other side is disposed with two sections of filler strip monomers 116 and two sections of filler strip monomers 118 in second embodiment.Therefore,
The filler strip 109 of the present embodiment have the advantages that it is identical as the 109 of one embodiment and second embodiment, and at first
Increase at the grooved passageway 110 of side in the structure basis of embodiment and opened up two pairs of air outlets, to increase grooved passageway
Air output at 110 air outlet improves the cooling efficiency of Double Layer Winding.
Figure 16 is the overlooking structure diagram of the filler strip 109 of the tenth one embodiment according to the present invention, in the present embodiment,
The grooved passageway 110 of filler strip 109 be not axially symmetric structure along 109 length direction of filler strip.It is located at the side axis A in the present embodiment
Filler strip 109 structure using in above-mentioned one embodiment be located at axis A corresponding side filler strip 109 structure, and this
It is located at axis A corresponding side in above-mentioned 8th embodiment that the structure of the filler strip 109 of the other side axis A uses in embodiment
Filler strip 109 structure.Therefore, the present embodiment has the advantages that identical as one embodiment and the 8th embodiment, therefore
It is not repeated here.Similarly, above-mentioned all embodiments can be referring to the tenth embodiment and the tenth one embodiment group
Conjunction mode is combined.
It is illustrated below according to installation method of the Fig. 2 to filler strip 109.
When the support of filler strip 109 of separate structure to be set between lower layer's winding 105 and upper layer winding 106, need first
Lower layer's winding 105 is placed in tooth socket 104, then by multiple filler strip monomers of filler strip 109 according to pre-set filler strip 109
Overall structure be layed in being separated on lower layer's winding 105, upper layer winding 106 is pressed on has been placed into shape later
On filler strip 109.Finally by slot wedge 108 to lower layer's winding 105, upper layer winding 106 and be located at lower layer's winding 105 and upper layer around
Filler strip 109 between group 106 carries out whole be fixed.
In the above-described embodiments, grooved passageway 110 is opened wide in the both side ends of filler strip 109 along its length, to pad
The both side ends of item 109 form air inlet, but the embodiment of the present invention is not limited to this.In other examples, flute profile is logical
Road 110 can also be only open ended in the side of filler strip 109 along its length, is entered the wind with being formed in a side end of filler strip 109
Mouthful.In some embodiments, grooved passageway 110 can not also 109 both side ends along its length open wide, and only with radial direction
Ventilating duct 103 is connected.Grooved passageway 110 have an air inlet or are only connected with radial ducts 103, equally may be used
To realize that allow the cooling air-flow of part to enter directly carries out cooling purpose to Double Layer Winding in grooved passageway 110.On in addition,
State partially radially ventilating duct 103 in multiple radial ducts 103 of filler strip 109 corresponding stator cores 100 in embodiment
(partially referring to one or more) is provided with air outlet, can also correspond to the complete of stator core 100 in other embodiments
Air outlet is arranged in the radial ducts 103 in portion.
Filler strip 109 in above-described embodiment can be made of the material of empire cloth type, for example, filler strip 109 can use
Aniline phenol aldehyde glass fabric swatch, epoxy novolac glass-cloth board or organosilicon glass cloth plate etc. are made.
The grooved passageway 110 of the filler strip 109 of the embodiment of the present invention be not limited to the above embodiments shown in way of realization, slot
As long as shape channel 110 can be such that the surface towards grooved passageway 110 of lower layer's winding 105 and/or upper layer winding 106 leads to radial
Air duct 103 is connected to, and realization carries out cooling purpose to Double Layer Winding.In other examples, when filler strip 109 has foot
It may be integral structure when enough thickness (thickness of filler strip 109 allows to open up grooving on it), that is, flute profile is logical
Road 110 can also be by opening up grooving on the surface that filler strip 109 is contacted with lower layer winding 105 and/or upper layer winding 106
Form setting, and it is connected to grooving with radial ducts 103.
Certainly in the embodiment that filler strip 109 is an integral structure, the specific structure of grooved passageway 110 can also be applied upper
The structure setting of grooved passageway 110 in any embodiment is stated, only in the present embodiment, grooved passageway 110 is in the form of grooving
It is set on the surface that filler strip 109 is contacted with lower layer winding 105 and/or upper layer winding 106, is not the thickness along filler strip 109
Direction is through setting.Illustratively, the quantity of grooved passageway 110 can also be multiple, and multiple grooved passageways 110 respectively close to
The both ends of filler strip 109 along its length are arranged or grooved passageway 110 is penetrated through along the length direction of filler strip 109.In addition, flute profile
The two sides of filler strip 109 along its length can also be arranged in channel 110 in the form of axisymmetric.
Grooved passageway 110 is set on filler strip 109 by way of above-mentioned grooving, can equally make cooling air-flow via slot
Shape channel 110 is contacted with the surface heat exchanging towards grooved passageway 110 of lower layer winding 105 and/or upper layer winding 106, so as to
Enough realize cools down the higher position of the temperature of Double Layer Winding in time, avoids the occurrence of lower layer's winding 105 and/or upper layer winding
Heat at 106 is accumulated, and then the problem of the output power of influence motor and reduction motor reliability.
According to one embodiment of present invention, a kind of motor 1 is also provided, motor 1 includes in any of the above-described a embodiment
Stator.Therefore, motor 1 has the advantages that identical as stator, therefore is not repeated here.
To sum up, the stator 10 for motor of the embodiment of the present invention, by double in the tooth socket 104 for being set to stator 10
Grooved passageway 110 is set at filler strip 109 between layer winding, keeps Double Layer Winding logical in face of the surface of grooved passageway 110 and radial direction
Air duct 103 is connected to.Enable and flowed into grooved passageway 110 into the cooling air-flow in 1 cavity of motor, with face in Double Layer Winding
It is contacted to the surface heat exchanging of grooved passageway 110, it is directly cooling so as to be carried out to Double Layer Winding, it improves to the cold of Double Layer Winding
But efficiency.Also, the cooling duct between Double Layer Winding can reduce the ventilation resistance inside motor 1, thus can increase into
Enter the air quantity inside motor 1, further increases the radiating efficiency inside motor 1.Solves Double Layer Winding in previous stator 10
Between temperature accumulate problem, and reduce Double Layer Winding and all there are problems that the larger temperature difference upwards in the diameter of axle.
The present invention can realize in other specific forms, without departing from its spirit and essential characteristics.Therefore, current reality
Apply example be all counted as being exemplary rather than in all respects it is limited, the scope of the present invention by appended claims rather than on
Description definition is stated, also, falls into the meaning of claim and whole changes in the range of equivalent to all be included in this
Among the range of invention.Also, the different technologies feature occurred in different embodiments can be combined, to obtain beneficial to effect
Fruit.Those skilled in the art will be understood that and realize revealed on the basis of studying attached drawing, specification and claims
The embodiment of other variations of embodiment.
Claims (15)
1. a kind of stator (10) for motor, which is characterized in that the stator (10) includes：Stator core (100), it is double-deck around
Group and filler strip (109),
The stator core (100) is overrided to form by multiple laminations (101), and adjacent two in the multiple lamination (101)
Gasket (102) are set between a lamination (101), to form radial ducts between two adjacent laminations (101)
(103)；
Radially superposed tooth socket (104) in the stator core (100) of the Double Layer Winding along the stator core (100)
In；
Filler strip (109) being axially set between the Double Layer Winding along the stator core (100), and the filler strip
(109) grooved passageway (110) are provided with, so that the winding surface towards the grooved passageway (110) in the Double Layer Winding
Be connected to the radial ducts (103), the grooved passageway (110) in the filler strip (109) side along its length or
Both side ends are opened wide, to form air inlet in the one or both sides end of the filler strip (109).
2. stator (10) according to claim 1, which is characterized in that the quantity of the grooved passageway (110) be it is multiple, it is more
Both side ends setting of a grooved passageway (110) close to the filler strip (109) along its length.
3. stator (10) according to claim 2, which is characterized in that multiple grooved passageways (110) are with axisymmetric shape
The two sides in the filler strip (109) along its length are arranged in formula.
4. stator (10) according to claim 1, which is characterized in that the grooved passageway (110) is along the filler strip (109)
Length direction perforation.
5. stator (10) according to claim 4, which is characterized in that the grooved passageway (110) is in the filler strip (109)
Length direction be axially symmetric structure.
6. stator (10) according to any one of claim 1 to 5, which is characterized in that the filler strip (109) is by multiple
The separate structure that filler strip monomer is constituted, the multiple filler strip monomer separates each other to be arranged to form the grooved passageway
(110)。
7. stator (10) according to claim 6, which is characterized in that the grooved passageway (110) includes corresponding multiple institutes
State one or more air outlets of at least partially radial ventilating duct (103) setting in radial ducts (103).
8. stator (10) according to claim 7, which is characterized in that one or more of air outlets are corresponding to be located at tooth socket
(104) at least partially radial ventilating duct (103) setting of one or both sides.
9. stator (10) according to claim 8, which is characterized in that one or more of air outlets and at least portion
Radial ducts (103) are divided to be arranged correspondingly.
10. stator (10) according to claim 9, which is characterized in that one or more of air outlets are set to described
The approximately mid way between of filler strip (109) along its length.
11. stator (10) according to claim 8, which is characterized in that each of one or more of air outlets go out
Air port is arranged in correspondence with multiple radial ducts (103) in at least partially radial ventilating duct (103).
12. stator (10) according to claim 11, which is characterized in that one or more of air outlets are set to described
The approximately mid way between of filler strip (109) along its length.
13. stator (10) according to any one of claim 1 to 5, which is characterized in that the filler strip (109) is integrated
Formula structure, at least partly width of the filler strip ontology (133,134) of the filler strip (109) are less than the width of the tooth socket (104),
So as to form the grooved passageway (110) between the filler strip (109) and at least side inner wall of the tooth socket (104).
14. stator (10) according to claim 13, which is characterized in that multiple grooved passageways (110) are with axial symmetry
The two sides in the filler strip (109) in the width direction are arranged in form.
15. a kind of motor (1), including the stator (10) for motor as described in any one of claims 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611196076.1A CN106787294B (en) | 2016-12-21 | 2016-12-21 | Stator for an electric machine and electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611196076.1A CN106787294B (en) | 2016-12-21 | 2016-12-21 | Stator for an electric machine and electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106787294A CN106787294A (en) | 2017-05-31 |
| CN106787294B true CN106787294B (en) | 2018-11-20 |
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ID=58900326
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611196076.1A Active CN106787294B (en) | 2016-12-21 | 2016-12-21 | Stator for an electric machine and electric machine |
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| Country | Link |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201365156Y (en) * | 2008-12-30 | 2009-12-16 | 上海电气电站设备有限公司 | Slotting structure for filler strips in stator slots of 330MW vapour-cooled generator |
| CN203278421U (en) * | 2013-06-03 | 2013-11-06 | 上海电科电机科技有限公司 | Radial ventilating duct of high-voltage and high-speed motor stator and radial ventilating duct of high-voltage and high-speed motor rotor |
| CN104953766A (en) * | 2015-06-17 | 2015-09-30 | 北京金风科创风电设备有限公司 | Radial ventilation cooling structure of motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07245894A (en) * | 1994-03-08 | 1995-09-19 | Fuji Electric Co Ltd | Cooling device for coil end part of rotary electric machine |
| JP4466098B2 (en) * | 2004-02-03 | 2010-05-26 | 日立工機株式会社 | Electric motor, electric tool including the same, and method for manufacturing electric motor |
-
2016
- 2016-12-21 CN CN201611196076.1A patent/CN106787294B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201365156Y (en) * | 2008-12-30 | 2009-12-16 | 上海电气电站设备有限公司 | Slotting structure for filler strips in stator slots of 330MW vapour-cooled generator |
| CN203278421U (en) * | 2013-06-03 | 2013-11-06 | 上海电科电机科技有限公司 | Radial ventilating duct of high-voltage and high-speed motor stator and radial ventilating duct of high-voltage and high-speed motor rotor |
| CN104953766A (en) * | 2015-06-17 | 2015-09-30 | 北京金风科创风电设备有限公司 | Radial ventilation cooling structure of motor |
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| Publication number | Publication date |
|---|---|
| CN106787294A (en) | 2017-05-31 |
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