CN106329761A - Double-channel-steel stator ventilation structure for motor - Google Patents
Double-channel-steel stator ventilation structure for motor Download PDFInfo
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- CN106329761A CN106329761A CN201610779152.5A CN201610779152A CN106329761A CN 106329761 A CN106329761 A CN 106329761A CN 201610779152 A CN201610779152 A CN 201610779152A CN 106329761 A CN106329761 A CN 106329761A
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- 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
- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a double-channel-steel stator ventilation structure for a motor, and the structure mainly comprises segmented stator cores, radial ventilation ducts, and ventilation channel steels. The segmented stator cores are arranged in an axial direction, and the radial ventilation ducts are respectively disposed between the adjacent segmented stator cores, and are formed by the ventilation channel steels which are distributed along the periphery. Each stator core comprises stator teeth and a stator slot, and the stator teeth and stator slots of the adjacent segmented stator cores are corresponding in a one-to-one manner in the axial direction. The interior of each stator slot is provided with a winding. The ventilation channel steels are disposed between the stator teeth of the adjacent segmented stator cores. One linear channel steel with the rectangular section and one streamline channel steel with the I-shaped section are placed between the stator teeth of the adjacent segmented stator cores. Through the change of the distribution of the lengths of the ventilation channel steels between the stator teeth, the structure can effectively reduce the wind abrasion in the ventilation channel, and solves problems that a conventional motor stator is poor in heat dissipation effect and the local temperature rise of the tail part of a stator core is excessively large.
Description
Technical field
The present invention relates to a kind of motor double flute steel stator aeration structure, be specifically related to a kind of motor stator radial ventilation system
System, belongs to motor ventilation technical field.
Background technology
For using the large-size machine of radial ventilation system, the loss of motor stator portion is mainly cold by Radial ventilation duct
But air flowing outwards heat radiation.But, when cooling down gas by Radial ventilation duct, owing to wind path cross section narrows suddenly, flow velocity
Become big；When cooling down gas and flowing out from stator bar afterbody, due to gas and the gas of stator bar afterbody of stator bar both sides
Rate of flow of fluid differs greatly, and causes stator coil afterbody to form eddy current, and eddy current middle part wind speed is minimum, has a strong impact on stator coil
The heat radiation of afterbody.If the aeration structure design of motor is unreasonable, causes motor local temperature rise too high or uneven, have a strong impact on
The service life of motor.
In motor radial ventilation system, ventilation steel channel typically uses linear type, V-type and many replicated structures.Chinese patent
Number be described in 201220141957.4 linear type stator ventilation steel channel, although simple in construction, but stator footpath can not be changed
Airflow direction in air duct, stator coil afterbody eddy-current loss is big；China Patent No. is the V-type described in 201520770017.5
Stator ventilation steel channel, although stator wind path can be changed and flow to, but there is wind path and flow to unbalanced, stator bulk temperature relatively
High；The ventilation steel channel of the many replicated structures described in China Patent No. 201410835452.1, due to its replicated structures, its structure is not
Smooth, cooling gas is relatively big in air duct endogenous wind abrasive wear, and radiating effect is the best.It addition, either linear type channel-section steel, V-groove
Steel or the ventilation steel channel of many replicated structures, cross section is square, and square ventilation steel channel mechanical performance is poor, and in air duct
Windmill loss is relatively big, is unfavorable for stationary part ventilation and heat.
Summary of the invention
The technology of the present invention solves problem: overcome the deficiencies in the prior art, it is provided that one can change wind path and flow to, and subtracts
Little windmill is lost, and can increase again the stator ventilation steel channel of channel-section steel mechanical performance.
The invention discloses a kind of motor double flute steel stator aeration structure, comprise that sectionalized stator is unshakable in one's determination, Radial ventilation duct and
Ventilation steel channel, it is characterised in that described Radial ventilation duct is arranged between adjacent sectionalized stator iron core, described radial direction is led to
Wind ditch is made up of described ventilation steel channel, and described ventilation steel channel is arranged along the circumferencial direction of described Radial ventilation duct, institute
The ventilation steel channel stated comprises line style channel-section steel and streamline channel-section steel always respectively.
As preferred embodiment of the present invention, described linear type channel-section steel and the straight length of streamlined channel-section steel are equal.
As preferred embodiment of the present invention, described linear type channel-section steel and the straight length of streamlined channel-section steel are unequal.
The invention also discloses a kind of motor double flute steel stator aeration structure, unshakable in one's determination including sectionalized stator), Radial ventilation duct
And ventilation steel channel；
Described sectionalized stator iron core is axially distributed, and hop count n and described segmentation that described sectionalized stator is unshakable in one's determination are fixed
There is relation: n=D/55～D/50 in the outer diameter D of son iron core；
Described Radial ventilation duct is arranged between adjacent sectionalized stator iron core, and described Radial ventilation duct is by described
Ventilation steel channel is constituted, and described ventilation steel channel is arranged along the circumferencial direction of described Radial ventilation duct, described radial ventilation
The axial width L of ditchdThe outer diameter D unshakable in one's determination with sectionalized stator and the axial length L of sectionalized stator iron corefeRelation be: Ld=
(0.1D+0.3Lfe)/55～(0.2D+0.1Lfe)/35；
Described sectionalized stator iron core includes stator tooth and stator slot, the stator tooth of adjacent sectionalized stator iron core and stator
Groove one_to_one corresponding in the axial direction, is placed with winding in described stator slot, it is fixed that described ventilation steel channel is arranged on adjacent segmentation
Between the stator tooth that son is unshakable in one's determination；
Described ventilation steel channel comprises line style channel-section steel and streamline channel-section steel always, the cross section of described linear type channel-section steel
Rectangular and linear extension, the cross section of described linear type channel-section steel comprises the first width L1With one second width L2, first
Width L1With stator facewidth btThere is relation: L1=bt/ 3～bt/ 2, the second width L2With the first width L1There is relation: L2=L1,
The tranverse sectional thickness L of described linear type channel-section steel3Axial width L with described Radial ventilation ductdThere is relation: L3=Ld；
The cross section of described streamlined channel-section steel is I-shaped, the sole width L of described streamlined channel-section steel4With the stator facewidth
btThere is relation: L4=2bt/ 5～bt/2；
The sole thickness L of described streamlined channel-section steel6Axial width L with described Radial ventilation ductdThere is relation: L6
=Ld/ 10～Ld/7；
The steel web width L of described streamlined channel-section steel7With described sole width L4There is relation: L7=L4/ 3～L4/2；
The section thickness L of described streamlined channel-section steel5Axial width L with described Radial ventilation ductdThere is relation: L5
=Ld；|
The I-shaped angle beta of described streamlined channel-section steel and described sole width L4And described section thickness L5Exist and close
System:
The channel-section steel width L of described streamlined channel-section steel8With described sole width L4There is relation: L8=L4；
Deflection distance r of described streamlined channel-section steel and angle of bend θ and stator facewidth btAnd stator tooth depth hsExist and close
System: i.e. r=bt/ 6～bt/ 3,
As preferred embodiment of the present invention, described linear type channel-section steel and the straight length of streamlined channel-section steel are equal, institute
The streamlined channel-section steel stated comprises four bending sections, described linear type channel-section steel and the straight length of streamlined channel-section steel and divides with described
The outer diameter D of section stator core and stator slot height hsThere is relation: Ls1=0.13 (D-2hs)～0.18 (D-2hs)；
Described linear type channel-section steel and the Edge Distance h unshakable in one's determination of streamlined channel-section steelt1, described streamlined channel-section steel and described
Ultimate range h of linear type channel-section steelt2With minimum range ht3, described deflection distance r of streamlined channel-section steel, described first wide
Degree L1And the channel-section steel width L of described streamlined channel-section steel8There is relation: ht2=0.3L1+r-0.2L8～0.8L1+r-0.6L8, ht3
=0.5L1+0.8r-0.7L8～0.5L1-0.6r+0.12L8；
The center of described streamlined channel-section steel and nearside tooth back gauge bt1With stator facewidth btAnd described deflection distance r deposits
In relation: bt1=0.5r+0.3bt～0.4r+0.2bt；
The center of described linear type channel-section steel and nearside tooth back gauge bt2With the first described width L1And stator facewidth bt
There is relation: bt2=0.22bt+0.11L1～0.6bt-0.45L1；
Described linear type channel-section steel and streamlined channel-section steel are circumferentially uniformly distributed, the channel-section steel that adjacent three stator tooths are corresponding
Being one group, channel-section steel mounting means of any one group is followed successively by streamlined channel-section steel, linear type channel-section steel, streamlined in the direction of the clock
Channel-section steel, linear type channel-section steel, linear type channel-section steel, streamlined channel-section steel.
As preferred embodiment of the present invention, described linear type channel-section steel and the straight length of streamlined channel-section steel are unequal,
Wherein linear type channel-section steel is short channel-section steel, and streamlined channel-section steel is long channel-section steel, long channel-section steel straight length Ls1=0.13 (D-2hs)～0.18
(D-2hs), the straight length of described short channel-section steel is Ls2The outer diameter D unshakable in one's determination with described sectionalized stator and stator slot height hsExist
Relation: Ls2=0.1 (D-2hs)～0.15 (D-2hs)；
Described long channel-section steel and short channel-section steel are circumferentially uniformly distributed, and the channel-section steel that adjacent three stator tooths are corresponding is one group,
Any one group channel-section steel mounting means be followed successively by long channel-section steel, short channel-section steel, long channel-section steel in the direction of the clock ", short channel-section steel, short groove
Steel, long channel-section steel.
Ventilating system of the present invention compared with prior art has the effect that by by square-section channel-section steel and work
The streamlined channel-section steel of shaped sections effectively combines, the most effectively reduction coil afterbody eddy-current loss, and air duct endogenous wind abrasive wear
It is substantially reduced, it addition, be distributed by changing channel-section steel quantity and length, makes motor radiating effect strengthen, and motor radiating efficiency increases
About adding 10%.
Accompanying drawing explanation
Fig. 1 is electric machine stator iron aeration structure schematic diagram；
Fig. 2 is motor stator Radial ventilation duct schematic enlarged-scale view；
Fig. 3 is square-section linear type channel-section steel overall structure schematic diagram；
Fig. 4 is I-shaped cross-section streamlined channel-section steel overall structure schematic diagram；
Fig. 5 is the top view of the streamlined channel-section steel in I-shaped cross-section；
Fig. 6 is the left view of the streamlined channel-section steel in I-shaped cross-section；
Fig. 7 is that stator between cog installs two length equal channel-section steel partial enlarged drawings；
Fig. 8 is the enlarged drawing of the part A of Fig. 7；
Fig. 9 is that stator between cog installs two varying length channel-section steel partial enlarged drawings.
Detailed description of the invention
The preferred embodiment of the present invention is elaborated below according to accompanying drawing.
The parameter of electric machine in the present embodiment: frame diameter D=555mm, Lfe=270mm, stator facewidth bt=
10.5mm, stator tooth depth hs=42mm.As it is shown in figure 1, a kind of motor double flute steel stator aeration structure of the present invention, mainly wrap
Including sectionalized stator iron core 1, Radial ventilation duct 2 and ventilation steel channel 3, wherein sectionalized stator is unshakable in one's determination 1 axially distributed, its hop count n by
The external diameter of stator core 1 determines, is electric machine stator iron external diameter for n=D/55～D/50, D, adjacent sectionalized stator unshakable in one's determination 1 it
Between be Radial ventilation duct 2, it is formed by circumferential ventilation steel channel 3, the axial width L of Radial ventilation duct 2dFixed with motor
Son outer diameter D unshakable in one's determination and axial length LfeRelevant, Ld=(0.1D+0.3Lfe)/55～(0.2D+0.1Lfe)/35, stator core 1 is wrapped
Include stator tooth 4 and stator slot 5, the stator tooth 4 of adjacent sectionalized stator iron core 1 and stator slot 5 one_to_one corresponding in the axial direction, stator
Being placed with winding in groove 5, ventilation steel channel 3 is arranged between the stator tooth 4 of adjacent sectional stator core 1, through optimizing design, and can
The hop count n=10～11 of segmentation stator core, preferably 10, the axial length L of Radial ventilation ductd=2.5mm～4mm, preferably
3.5mm。
Existing motor stator ventilation steel channel structure is single, and windmill loss is big, and ventilation effect is the best, and does not take into full account groove
The steel guide functions to cooling gas.In order to more preferably improve ventilation effect, reduce coil afterbody eddy-current loss, electricity of the present invention
Machine uses square-section linear type channel-section steel and the streamlined channel-section steel in I-shaped cross-section, and each stator of adjacent sectional stator core 1
Two channel-section steels, i.e. one square-section linear type channel-section steel, a streamlined channel-section steel in I-shaped cross-section, its three-dimensional knot is placed between tooth
Structure schematic diagram is as in figure 2 it is shown, be described respectively both channel-section steels below.
Linear type channel-section steel 3 cross section, square-section uses rectangle, and linearly form extends, as shown in Figure 3.Square-section straight line
Type channel-section steel width is L1(the first width), L1With stator facewidth btRelevant, there is following relation: L1=bt/ 3～bt/ 2, i.e. L1=
3.5mm～5.25mm, preferably 4.5mm.Square-section linear type channel cross-section width is L2(the second width), L2With square-section
Linear type channel-section steel width L1Relevant, there is following relation: L2=L1, i.e. L2=4.5mm, section thickness L3With air duct axial width
LdRelevant, there is following relation: L3=Ld, i.e. L3=3.5mm.
I-shaped cross-section streamlined channel-section steel overall structure as shown in Figure 4, in order to clearly describe this channel-section steel structure, takes I-shaped
Gross section streamlines type channel-section steel top view and left view are for analyzing object, and as shown in Figure 5 and Figure 6, wherein Fig. 5 is channel-section steel top view, Fig. 6
For channel-section steel left view.
(as shown in Figure 5) cross section of the streamlined channel-section steel in I-shaped cross-section is I-shaped, I-shaped cross-section streamlined channel-section steel foot
Plate width L4, its size and stator facewidth btRelevant, L4=2bt/ 5～bt/ 2, i.e. L4=4.2mm～5.25mm, preferably 4.8mm, work
Shaped sections streamlined channel-section steel sole thickness L6With air duct axial width LdRelevant, for L6=Ld/ 10～Ld/ 7, i.e. L6=
0.35mm～0.5mm, preferably 0.42mm, I-shaped cross-section streamlined channel-section steel web width L7, its size flows with I-shaped cross-section
Line style channel-section steel sole width L4Relevant, for L7=L4/ 3～L4/ 2, i.e. L7=1.6mm～2.4mm, ensures again I-shaped to save material
The mechanical performance of shape channel-section steel, L7Being preferably 2mm, channel cross-section thickness is L5, its size and air duct axial width LdRelevant, i.e.
L5=Ld, then L5=3.5mm.I-shaped angle beta and I-shaped cross-section streamlined channel-section steel sole width L4And I-shaped cross-section is streamlined
Channel-section steel thickness L5Relevant, according to optimizing design,Then β=16.26 °～25.92 °, in order to subtract
Little ventilating duct endogenous wind abrasive wear, β is preferably 22 °, and the most I-shaped angle beta is streamlined channel-section steel I-shaped cross-section, I-shaped cross-section
Angle between horizontal edge and hypotenuse.The streamlined channel-section steel in I-shaped cross-section (as shown in Figure 6) width L8, L8With I-shaped cross-section streamline
Type channel-section steel sole width L4Relevant, L8=L4, i.e. L8=4.8mm.I-shaped cross-section streamlined channel-section steel deflection distance r and angle of bend θ
With stator facewidth btAnd stator tooth depth hsRelevant, i.e. r=bt/ 6～bt/ 3,The present embodiment
In, stator facewidth bt=10.5mm, stator slot height hs=42mm, then r=1.75mm～3.5mm, preferably 2.5mm, θ=14.04 °
～26.56 °, preferably 15 °, wherein in Fig. 6, shown in W, part represents a bending of channel-section steel, and deflection distance r is I-shaped cross-section stream
Radial distance between line style channel-section steel maximum deflection point with adjacent two bending midpoints, angle of bend θ is adjacent two bendings
Between midpoint tangent line and adjacent two bending midpoint lines between angles, this design is reducing coil afterbody eddy-current loss
Ensure that maximum ventilation radiating effect simultaneously.
In order to improve the water conservancy diversion effect of channel-section steel, place between each stator tooth of adjacent sectional stator core of the present invention
The channel-section steel that two straight lengths are equal, i.e. one square-section linear type channel-section steel, a streamlined channel-section steel in I-shaped cross-section, such as figure
Shown in 7.In order to reach optimal radiating effect, the streamlined channel-section steel in I-shaped cross-section is made up of four bendings, and each channel-section steel length
Spend relevant with motor stator external diameter and stator slot height, i.e. Ls1=0.13 (D-2hs)～0.18 (D-2hs), in the present embodiment, fixed
Son outer diameter D=555mm, stator slot height h unshakable in one's determinations=42mm, i.e. Ls1=61.23mm～84.78mm, preferably 73mm.Channel-section steel is installed
In air duct between two stator tooths are axial, each tooth is laid two channel-section steels, respectively one above-mentioned square-section
Linear type channel-section steel and a streamlined channel-section steel in above-mentioned I-shaped cross-section.Fig. 8 is the enlarged drawing of part A in Fig. 7, paraxial at channel-section steel
End, two channel-section steel distance Edge Distances unshakable in one's determination are ht1, a length of 7mm～10mm, preferably 9mm, the streamlined groove in I-shaped cross-section
Steel is respectively h with square-section linear type channel-section steel ultimate range and minimum ranget2And ht3, ht2And ht3Size and I-shaped cross-section
Streamlined channel-section steel deflection distance r, square-section linear type channel-section steel width L1And I-shaped cross-section streamlined channel-section steel width L8All have
Close, i.e. ht2=0.3L1+r-0.2L8～0.8L1+r-0.6L8, ht3=0.5L1+0.8r-0.7L8～0.5L1-0.6r+0.12L8,
I.e. ht2=2.89mm～3.22mm, preferably 3mm, ht3=0.89mm～1.326mm, preferably 1.1mm.I-shaped cross-section is streamlined
Channel-section steel center and nearside tooth back gauge (b in Fig. 7t1) and stator facewidth btAnd I-shaped cross-section streamlined channel-section steel deflection distance r has
Close, bt1=0.4r+0.2bt～0.5r+0.3bt, i.e. bt1=3.1mm～4.4mm, preferably 3.75mm；Square-section linear type groove
Steel center and nearside tooth back gauge (b in Fig. 6t2) and square-section linear type channel-section steel width L1And stator facewidth btRelevant, i.e. bt2
=0.22bt+0.11L1～0.6bt-0.45L1, i.e. bt2=2.8mm～4.27mm, preferably 3.5mm.On the whole, square-section is straight
The streamlined channel-section steel of line style channel-section steel and I-shaped cross-section is circumferentially in regularity distribution, and the channel-section steel that adjacent three stator tooths are corresponding is
One group, any one group channel-section steel mounting means be followed successively by the direction of the clock " the streamlined channel-section steel in 73mm I-shaped cross-section ",
" 73mm square-section linear type channel-section steel ", " the streamlined channel-section steel in 73mm I-shaped cross-section ", " 73mm square-section linear type channel-section steel ",
" 73mm square-section linear type channel-section steel ", " the streamlined channel-section steel in 73mm I-shaped cross-section ", its distribution is as shown in Figure 7 above.
In order to effectively reduce coil afterbody eddy-current loss, the channel-section steel of each stator between cog is designed to long and short two, such as figure
Shown in 9.Being shortened by square-section linear type channel-section steel on the basis of original channel-section steel, for short channel-section steel, its straight length is Ls2, Ls2With
Motor stator outer diameter D and stator slot height hsRelevant, Ls2=0.1 (D-2hs)～0.15 (D-2hs), i.e. Ls2=47.1mm～
70.65mm, preferably 59mm.Channel-section steel be installed on two stator tooths axially between air duct in, each tooth is laid two channel-section steels,
It is respectively the short channel-section steel of square-section linear type, the streamlined long channel-section steel in I-shaped cross-section.On the whole, long channel-section steel, short groove
Steel is circumferentially in regularity distribution, and the channel-section steel that adjacent three stator tooths are corresponding is one group, the channel-section steel installation side of any one group
Formula be followed successively by the direction of the clock " the streamlined long channel-section steel in 73mm I-shaped cross-section ", " the 59mm square-section short channel-section steel of linear type ",
" the streamlined long channel-section steel in 73mm I-shaped cross-section ", " the 59mm square-section short channel-section steel of linear type ", " 73mm square-section linear type is short
Channel-section steel ", " the streamlined long channel-section steel in 73mm I-shaped cross-section ".The program compared with such scheme in air duct wind speed have increased slightly,
Stator coil afterbody eddy current is obviously reduced, and motor radiating rate improves about 10%.
The above, the only detailed description of the invention of the present invention, but the protection of the present invention is not limited thereto, this area skill
Art personnel are not in the case of changing principle, and any improvement without substantial variations made also should be regarded as the protection model of the present invention
Enclose.
The content not being described in detail in description of the invention belongs to prior art known to professional and technical personnel in the field.
Claims (6)
1. a motor double flute steel stator aeration structure, comprises sectionalized stator (1) unshakable in one's determination, Radial ventilation duct (2) and ventilation steel channel
(3), it is characterised in that described Radial ventilation duct (2) is arranged between adjacent sectionalized stator (1) unshakable in one's determination, described radial direction
Air duct (2) is made up of described ventilation steel channel (3), and described ventilation steel channel (3) is along the circle of described Radial ventilation duct (2)
Circumferential direction is arranged, and described ventilation steel channel (3) comprises line style channel-section steel (31) and streamline channel-section steel (32) always respectively.
Motor double flute steel stator aeration structure the most according to claim 1, it is characterised in that described linear type channel-section steel
And the straight length of streamlined channel-section steel (32) is equal (31).
Motor double flute steel stator aeration structure the most according to claim 1, it is characterised in that described linear type channel-section steel
And the straight length of streamlined channel-section steel (32) is unequal (31).
4. a motor double flute steel stator aeration structure, including sectionalized stator (1) unshakable in one's determination, Radial ventilation duct (2) and ventilation steel channel
(3)；
Described sectionalized stator (1) unshakable in one's determination is axially distributed, the hop count n of described sectionalized stator (1) unshakable in one's determination and described segmentation
There is relation: n=D/55～D/50 in the outer diameter D of stator core (1)；
Described Radial ventilation duct (2) is arranged between adjacent sectionalized stator (1) unshakable in one's determination, described Radial ventilation duct (2) by
Described ventilation steel channel (3) is constituted, and described ventilation steel channel (3) is arranged along the circumferencial direction of described Radial ventilation duct (2),
The axial width L of described Radial ventilation duct (2)dThe outer diameter D of (1) unshakable in one's determination with sectionalized stator and sectionalized stator (1) unshakable in one's determination
Axial length LfeRelation be: Ld=(0.1D+0.3Lfe)/55～(0.2D+0.1Lfe)/35；
Described sectionalized stator (1) unshakable in one's determination includes stator tooth (4) and stator slot (5), the stator of adjacent sectionalized stator (1) unshakable in one's determination
Tooth (4) and stator slot (5) one_to_one corresponding in the axial direction, be placed with winding, described ventilation steel channel in described stator slot (5)
(3) it is arranged between the stator tooth (4) of adjacent sectionalized stator (1) unshakable in one's determination；
Described ventilation steel channel (3) comprises line style channel-section steel (31) and streamline channel-section steel (32), described linear type channel-section steel always
(31) cross section is rectangular and linear extension, and the cross section of described linear type channel-section steel (31) comprises the first width L1With
One second width L2, the first width L1With stator facewidth btThere is relation: L1=bt/ 3～bt/ 2, the second width L2With the first width
L1There is relation: L2=L1, the tranverse sectional thickness L of described linear type channel-section steel (31)3Axle with described Radial ventilation duct (2)
To width LdThere is relation: L3=Ld；
The cross section of described streamlined channel-section steel (32) is I-shaped, the sole width L of described streamlined channel-section steel (32)4With stator
Facewidth btThere is relation: L4=2bt/ 5～bt/2；
The sole thickness L of described streamlined channel-section steel (32)6Axial width L with described Radial ventilation duct (2)dThere is relation:
L6=Ld/ 10～Ld/7；
The steel web width L of described streamlined channel-section steel (32)7With described sole width L4There is relation: L7=L4/ 3～L4/2；
The section thickness L of described streamlined channel-section steel (32)5Axial width L with described Radial ventilation duct (2)dThere is relation:
L5=Ld；|
The I-shaped angle beta of described streamlined channel-section steel (32) and described sole width L4And described section thickness L5Exist and close
System:
The channel-section steel width L of described streamlined channel-section steel (32)8With described sole width L4There is relation: L8=L4；
Deflection distance r of described streamlined channel-section steel (32) and angle of bend θ and stator facewidth btAnd stator tooth depth hsExist and close
System: i.e. r=bt/ 6～bt/ 3,
Motor double flute steel stator aeration structure the most according to claim 4, it is characterised in that:
Described linear type channel-section steel (31) and the straight length of streamlined channel-section steel (32) are equal, described streamlined channel-section steel (32) bag
Containing four bending sections, described linear type channel-section steel (31) and the straight length of streamlined channel-section steel (32) and described sectionalized stator ferrum
The outer diameter D of the heart (1) and stator slot height hsThere is relation: Ls1=0.13 (D-2hs)～0.18 (D-2hs)；
Described linear type channel-section steel (31) and the Edge Distance h unshakable in one's determination of streamlined channel-section steel (32)t1, described streamlined channel-section steel (32)
Ultimate range h with described linear type channel-section steel (31)t2With minimum range ht3, described streamlined channel-section steel (32) bending away from
From r, the first described width L1And the channel-section steel width L of described streamlined channel-section steel (32)8There is relation: ht2=0.3L1+r-
0.2L8～0.8L1+r-0.6L8, ht3=0.5L1+0.8r-0.7L8～0.5L1-0.6r+0.12L8；
The center of described streamlined channel-section steel (32) and nearside tooth back gauge bt1With stator facewidth btAnd described deflection distance r deposits
In relation: bt1=0.5r+0.3bt～0.4r+0.2bt；
The center of described linear type channel-section steel (31) and nearside tooth back gauge bt2With the first described width L1And stator facewidth btDeposit
In relation: bt2=0.22bt+0.11L1～0.6bt-0.45L1；
Described linear type channel-section steel (31) and streamlined channel-section steel (32) are circumferentially uniformly distributed, and adjacent three stator tooths are corresponding
Channel-section steel is one group, and the channel-section steel mounting means of any one group is followed successively by streamlined channel-section steel (32), linear type groove in the direction of the clock
Steel (31), streamlined channel-section steel (32), linear type channel-section steel (31), linear type channel-section steel (31), streamlined channel-section steel (32).
Motor double flute steel stator aeration structure the most according to claim 4, it is characterised in that: described linear type channel-section steel
(31) and the straight length of streamlined channel-section steel (32) is unequal, wherein linear type channel-section steel (31) is short channel-section steel, streamlined channel-section steel
(32) it is long channel-section steel, long channel-section steel straight length Ls1=0.13 (D-2hs)～0.18 (D-2hs), the length of described short channel-section steel
Degree is Ls2Outer diameter D and stator slot height h with described sectionalized stator (1) unshakable in one's determinationsThere is relation: Ls2=0.1 (D-2hs)～0.15
(D-2hs)；
Described long channel-section steel and short channel-section steel are circumferentially uniformly distributed, and the channel-section steel that adjacent three stator tooths are corresponding is one group, arbitrarily
The channel-section steel mounting means of one group is followed successively by long channel-section steel, short channel-section steel, long channel-section steel, short channel-section steel, short channel-section steel, elongated slot in the direction of the clock
Steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610779152.5A CN106329761A (en) | 2016-08-30 | 2016-08-30 | Double-channel-steel stator ventilation structure for motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610779152.5A CN106329761A (en) | 2016-08-30 | 2016-08-30 | Double-channel-steel stator ventilation structure for motor |
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|---|---|
| CN106329761A true CN106329761A (en) | 2017-01-11 |
Family
ID=57789583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610779152.5A Pending CN106329761A (en) | 2016-08-30 | 2016-08-30 | Double-channel-steel stator ventilation structure for motor |
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| CN (1) | CN106329761A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111600404A (en) * | 2020-06-15 | 2020-08-28 | 哈尔滨理工大学 | Mining explosion-proof motor with step-by-step booster-type stator channel steel |
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| US4362960A (en) * | 1980-04-30 | 1982-12-07 | Societe Anonyme Dite: Alsthom-Atlantique | Spacer assembly for a stator venting duct of an electric power machine |
| TW428355B (en) * | 1997-07-25 | 2001-04-01 | Gen Electric | Direct-cooled dynamoelectric machine stator core with enhanced heat transfer capability |
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| CN201207586Y (en) * | 2008-05-20 | 2009-03-11 | 上海电气电站设备有限公司 | Stator core ventilation device for air cooling turbine generator |
| CN103746480A (en) * | 2014-01-02 | 2014-04-23 | 山东华力电机集团股份有限公司 | Radial ventilation device of motor stator |
| 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 | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4362960A (en) * | 1980-04-30 | 1982-12-07 | Societe Anonyme Dite: Alsthom-Atlantique | Spacer assembly for a stator venting duct of an electric power machine |
| TW428355B (en) * | 1997-07-25 | 2001-04-01 | Gen Electric | Direct-cooled dynamoelectric machine stator core with enhanced heat transfer capability |
| US20020074874A1 (en) * | 2000-12-20 | 2002-06-20 | Wei Tong | Heat transfer enhancement at generator stator core space blocks |
| CN201207586Y (en) * | 2008-05-20 | 2009-03-11 | 上海电气电站设备有限公司 | Stator core ventilation device for air cooling turbine generator |
| CN103746480A (en) * | 2014-01-02 | 2014-04-23 | 山东华力电机集团股份有限公司 | Radial ventilation device of motor stator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111600404A (en) * | 2020-06-15 | 2020-08-28 | 哈尔滨理工大学 | Mining explosion-proof motor with step-by-step booster-type stator channel steel |
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