CN106329758B - A kind of motor stator ventilation steel channel structure - Google Patents
A kind of motor stator ventilation steel channel structure Download PDFInfo
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- CN106329758B CN106329758B CN201610756114.8A CN201610756114A CN106329758B CN 106329758 B CN106329758 B CN 106329758B CN 201610756114 A CN201610756114 A CN 201610756114A CN 106329758 B CN106329758 B CN 106329758B
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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
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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
- H02K1/16—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)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a kind of motor stator ventilation steel channel structures, it mainly include sectionalized stator iron core, Radial ventilation duct and ventilation steel channel, wherein sectionalized stator iron core is axially distributed, it is Radial ventilation duct between adjacent sectionalized stator iron core, it is formed by circumferential ventilation steel channel, stator core includes stator tooth and stator slot, the stator tooth and stator slot of adjacent sectionalized stator iron core correspond in the axial direction, winding is placed in stator slot, ventilation steel channel is mounted between the stator tooth of adjacent sectional stator core, two channel steels are placed between each stator tooth of the adjacent sectional stator core, section is all made of I-shaped, wherein one is I-shaped cross-section linear type channel steel, another is the streamlined channel steel in I-shaped cross-section, structure of the present invention can effectively change cooling gas flow direction in air duct, reduce ventilating duct Interior windmill loss, reduces stator coil tail portion eddy-current loss.
Description
Technical field
The present invention relates to a kind of motor stator ventilation steel channel structures, and in particular to a kind of motor stator radial ventilation system,
Belong to motor ventilation technical field.
Background technique
For the large-size machine using radial ventilation system, it is cold that the loss of motor stator portion mainly passes through Radial ventilation duct
But it radiates outside air stream trend.But when cooling gas passes through Radial ventilation duct, since wind path section narrows suddenly, flow velocity
Become larger；When cooling gas is flowed out from stator bar tail portion, due to the gas of stator bar two sides and the gas of stator bar tail portion
Body flow velocity differs greatly, and stator coil tail portion is caused to form vortex, and the intermediate position wind speed of vortex is minimum, seriously affects stator coil
The heat dissipation of tail portion.If the aeration structure design of motor is unreasonable, causes motor local temperature rise excessively high or uneven, seriously affect
The service life of motor.
In motor radial ventilation system, ventilation steel channel generally uses linear type, V-type and more replicated structures.Chinese patent
Number it cannot change stator radial direction although structure is simple for linear type stator ventilation steel channel described in 201220141957.4
Air duct interior air-flow direction, stator coil tail portion eddy-current loss are big；China Patent No. is that V-type described in 201520770017.5 is fixed
Sub- ventilation steel channel, although can change stator wind direction, that there are wind directions is unbalanced, stator bulk temperature is higher；
The ventilation steel channel of more replicated structures described in China Patent No. 201410835452.1, due to its replicated structures, structure is not only
Sliding, cooling gas windmill loss in air duct is larger, and heat dissipation effect is bad.In addition, either linear type channel steel, V-groove steel
Or the ventilation steel channel of more replicated structures, section is square, and square ventilation steel channel mechanical performance is poor, and the wind in air duct
Abrasive wear is larger, is unfavorable for stationary part ventilation and heat.
Summary of the invention
Technology of the invention solves the problems, such as: wind direction can be changed by overcoming the deficiencies of the prior art and provide one kind, be subtracted
Small windmill loss, and can increase the stator ventilation steel channel of channel steel mechanical performance.
Technical solution of the invention are as follows: a kind of motor stator ventilation steel channel structure mainly includes sectionalized stator iron core
(1), Radial ventilation duct (2) and ventilation steel channel (3), wherein sectionalized stator iron core (1) is axially distributed, and number of segment n is by stator iron
The outer diameter of the heart (1) determines, is n=D/55~D/50, and D is electric machine stator iron outer diameter, between adjacent sectionalized stator iron core (1)
It for Radial ventilation duct (2), is formed by circumferential ventilation steel channel (3), the axial width L of Radial ventilation duct (2)dWith electricity
Machine stator iron core outer diameter D and axial length LfeIt is related, Ld=(0.1D+0.3Lfe)/55~(0.2D+0.1Lfe)/35, stator iron
The heart (1) includes stator tooth (4) and stator slot (5), and the stator tooth (4) and stator slot (5) of adjacent sectionalized stator iron core (1) are in axis
It corresponds upwards, is placed with winding in stator slot (5), ventilation steel channel (3) is mounted on the stator of adjacent sectional stator core (1)
Between tooth (4), two channel steels are placed between each stator tooth of the adjacent sectional stator core (1), section is all made of I-shaped
Shape, wherein one is I-shaped cross-section linear type channel steel, another is the streamlined channel steel in I-shaped cross-section, wherein I-shaped cross-section
Linear type channel steel width is L5, size and stator facewidth btIt is related, it is L5=bt/ 3~bt/ 2, I-shaped cross-section linear type channel steel
The wide L of sole1, size and I-shaped cross-section linear type channel steel width L5It is equal, I-shaped cross-section linear type channel steel sole thickness L3
With air duct axial width LdIt is related, it is L3=Ld/ 10~Ld/ 7, the I-shaped cross-section wide L of linear type channel steel web4, size with
The I-shaped cross-section wide L of linear type channel steel sole1It is related, it is L4=L1/ 3~L1/ 2, I-shaped cross-section linear type channel steel is with a thickness of L2,
Its size and air duct axial width LdIt is related, i.e. L2=Ld, I-shaped angle beta and I-shaped cross-section linear type channel steel sole are wide
L1And I-shaped cross-section linear type channel steel thickness L2It is related,Wherein I-shaped angle beta is work
Angle between shaped sections linear type channel steel I-shaped cross-section horizontal edge and bevel edge.The streamlined channel cross-section in I-shaped cross-section
Structure size is identical as I-shaped cross-section linear type channel steel, and the streamlined channel steel width in I-shaped cross-section is L6, size and linear type
Channel steel width is equal, i.e. L6=L5, channel steel deflection distance r and bending angle θ and stator facewidth btAnd the high h of stator toothsIt is related, i.e. r
=bt/ 6~bt/ 3,Wherein deflection distance r is that the streamlined channel steel maximum in I-shaped cross-section is curved
Radial distance between song point and two neighboring bending midpoint, the tangent line of bending angle θ midpoint between two neighboring bending
With the angle between two neighboring bending midpoint line.
The equal channel steel of two straight lengths is placed between each stator tooth of the adjacent sectional stator core (1), i.e.,
A piece I-shaped cross-section linear type channel steel and a streamlined channel steel in I-shaped cross-section, wherein the streamlined channel steel in I-shaped cross-section by
Six bending compositions, and channel steel straight length is related with motor stator outer diameter and stator slot height, is Ls1=0.13 (D-2hs)~
0.18(D-2hs), in channel steel proximal ends, two channel steels are h apart from iron core Edge Distancet1, length is 7mm~10mm, I-shaped
Maximum distance and minimum range of the streamlined channel steel of tee section apart from I-shaped cross-section linear type channel steel are respectively ht2And ht3, ht2
And ht3Size and I-shaped cross-section linear type channel steel width L5, the streamlined channel steel deflection distance r in I-shaped cross-section and stator groove width
btIt is related, maximum distance ht2=0.42L5+0.87r-0.13bt~1.8L5-r-0.28bt, minimum range ht3=0.58L5-
0.49r-0.13bt~0.98L5-1.5r-0.04bt, the streamlined channel steel center in I-shaped cross-section and nearside tooth back gauge bt1With it is fixed
Sub- facewidth btAnd the streamlined channel steel deflection distance r in I-shaped cross-section is related, is bt1=0.5r+0.3bt~0.4r+0.2bt, I-shaped
Tee section linear type channel steel center and nearside tooth back gauge bt2With I-shaped cross-section linear type channel steel width L5And stator facewidth bt
It is related, i.e. bt2=0.22bt+0.11L5~0.6bt-0.45L5, on the whole, I-shaped cross-section linear type channel steel and I-shaped cross-section
Streamlined channel steel is circumferentially in regularity distribution, and the corresponding channel steel of adjacent three stator tooths is one group, the slot of any one group
Steel mounting means is followed successively by " the streamlined channel steel in I-shaped cross-section ", " I-shaped cross-section linear type channel steel ", " work in the direction of the clock
The streamlined channel steel of shaped sections ", " I-shaped cross-section linear type channel steel ", " I-shaped cross-section linear type channel steel ", " I-shaped cross-section
Streamlined channel steel ".
Two straight lengths not equal slot can be also placed between each stator tooth of the adjacent sectional stator core (1)
Steel, the i.e. streamlined long channel steel in an I-shaped cross-section, an I-shaped cross-section linear type short channel-section steel, long channel steel straight length Ls1=
0.13(D-2hs(the D-2h of)~0.18s), short channel-section steel straight length is Ls2=0.1 (D-2hs(the D-2h of)~0.15s), on the whole, work
The streamlined long channel steel of shaped sections, I-shaped cross-section linear type short channel-section steel are circumferentially in regularity distribution, adjacent three stators
The corresponding channel steel of tooth is one group, and the channel steel mounting means of any one group is followed successively by " I-shaped cross-section streamline in the direction of the clock
The long channel steel of type ", " I-shaped cross-section linear type short channel-section steel ", " the streamlined long channel steel in I-shaped cross-section ", " I-shaped cross-section linear type
Short channel-section steel ", " I-shaped cross-section linear type short channel-section steel ", " the streamlined long channel steel in I-shaped cross-section ".
The advantages of the present invention over the prior art are that: I-shaped cross-section linear type channel steel and I-shaped of the present invention
The streamlined channel steel mechanical performance of tee section is high, saves manufacturing cost, improves the slickness of ventilating duct wall, is effectively reduced in air duct
Windmill loss is distributed, thus it is possible to vary stator is effectively reduced in cooling gas flow direction by changing channel steel planform and length
Coil tail portion eddy-current loss makes motor radiating efficiency increase by 13% or so.
Detailed description of the invention
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 I-shaped cross-section linear type channel steel structural schematic diagram, and wherein Fig. 3 a is that linear type channel steel in I-shaped cross-section is whole
Body structural schematic diagram, Fig. 3 b are channel steel top view；
Fig. 4 is the streamlined channel steel overall structure diagram in I-shaped cross-section；
Fig. 5 is the streamlined channel steel top view in I-shaped cross-section and left view, and wherein Fig. 5 a is I-shaped cross-section streamline type groove
Steel top view, Fig. 5 b are its left view；
Fig. 6 is that stator between cog installs the equal channel steel partial enlarged view of two length；
Fig. 7 is part A enlarged drawing in Fig. 6；
Fig. 8 is that stator between cog installs two varying length channel steel partial enlarged views；
Specific embodiment
The preferred embodiment of the present invention is elaborated below according to attached drawing.
The parameter of electric machine that the present embodiment is related to mainly has: frame diameter D=1260mm, Lfe=1340mm, stator tooth
Wide bt=19.3mm, the high h of stator tooths=81.4mm.As shown in Figure 1, motor stator ventilation steel channel structure of the present invention, main
It to include sectionalized stator iron core (1), Radial ventilation duct (2) and ventilation steel channel (3), wherein sectionalized stator iron core (1) is along axial point
Cloth, number of segment n are determined by the outer diameter of stator core (1), are n=D/55~D/50, D is electric machine stator iron outer diameter, adjacent
It is Radial ventilation duct (2) between sectionalized stator iron core (1), is formed by circumferential ventilation steel channel (3), Radial ventilation duct
(2) axial width LdWith electric machine stator iron outer diameter D and axial length LfeIt is related, Ld=(0.1D+0.3Lfe)/55~(0.2D
+0.1Lfe)/35, stator core (1) include stator tooth (4) and stator slot (5), the stator tooth of adjacent sectionalized stator iron core (1)
(4) it is corresponded in the axial direction with stator slot (5), is placed with winding in stator slot (5), ventilation steel channel (3) is mounted on adjacent point
Between the stator tooth (4) of section stator core (1), by optimization design, can must be segmented the number of segment n=22.9 of stator core~
25.2, preferably 24, the axial length L of Radial ventilation ductd=9.6mm~11mm, preferably 10mm.
Existing motor stator ventilation steel channel structure is single, and windmill loss is big, and ventilation effect is bad, and does not fully consider slot
Guide functions of the steel to cooling gas.In order to more preferably improve ventilation effect, coil tail portion eddy-current loss, phase of the present invention are reduced
Between each stator tooth of adjacent sectionalized stator iron core (1) place two channel steels, section be all made of it is I-shaped, wherein one be I-shaped
Tee section linear type channel steel, another is the streamlined channel steel in I-shaped cross-section, and three dimensional structure diagram is as shown in Fig. 2, below
Both channel steels are described respectively.
I-shaped cross-section linear type channel steel structure is as shown in figure 3, Fig. 3 a is I-shaped cross-section linear type channel steel overall structure
Schematic diagram, Fig. 3 b are I-shaped cross-section linear type channel cross-section figure.I-shaped cross-section linear type channel steel width is L5(such as Fig. 3 a institute
Show), size and stator facewidth btIt is related, by optimization design, L5=bt/ 3~bt/ 2, i.e. L5=6.43mm~9.65mm, it is excellent
Select 8mm.I-shaped cross-section linear type channel cross-section is as shown in Figure 3b, the I-shaped cross-section wide L of linear type channel steel sole1, size
With I-shaped cross-section linear type channel steel width L5It is equal, i.e. L1=6.43mm~9.65mm, preferably 8mm, I-shaped cross-section linear type
Channel steel sole thickness L3With air duct axial width LdIt is related, it is L3=Ld/ 10~Ld/ 7, i.e. L3=0.96mm~1.57mm, it is excellent
It is selected as 1.2mm.The I-shaped cross-section wide L of linear type channel steel web4, size and the wide L of I-shaped cross-section linear type channel steel sole1Have
It closes, is L4=L1/ 3~L1/ 2, i.e. L4=2.1mm~4.8mm guarantees I-shaped cross-section linear type channel steel to save material again
Mechanical performance, L4Preferably 4mm.I-shaped cross-section linear type channel steel is with a thickness of L2, size and air duct axial width LdHave
It closes, i.e. L2=Ld, then L2=10mm.I-shaped angle beta and the wide L of I-shaped cross-section linear type channel steel sole1And I-shaped cross-section is straight
Line style channel steel thickness L2It is related, according to optimization design,Then β=26.56 °~59 °, in order to
Reduce windmill loss in ventilating duct, β is preferably 42 °, wherein I-shaped angle beta is I-shaped section of I-shaped cross-section linear type channel steel
Angle between face horizontal edge and bevel edge.
The streamlined channel steel overall structure in I-shaped cross-section takes I-shaped as shown in figure 4, the channel steel structure for a clear description
Gross section streamlines type groove steel top view and left view are analysis object, as shown in figure 5, wherein Fig. 5 a is I-shaped cross-section streamline type groove
Steel top view, Fig. 5 b are the streamlined channel steel left view in I-shaped cross-section.The streamlined channel cross-section in I-shaped cross-section such as Fig. 5 a
Shown in top view, in order to guarantee that ventilation effect is best, cross section structure size is identical as I-shaped cross-section linear type channel steel.In order to
Fiting effect is best, and the streamlined channel steel in I-shaped cross-section (as shown in Fig. 5 b left view) width is L6, size and I-shaped cross-section
Linear type channel steel width is equal, i.e. L6=L5, L6=8mm.Channel steel deflection distance r and bending angle θ and stator facewidth btAnd stator
The high h of toothsIt is related, i.e. r=bt/ 6~bt/ 3,Then r=3.2mm~6.5mm, preferably 4mm, θ
=14.7 °~27.8 °, preferably 17 °, wherein part shown in W indicates that one of channel steel is bent in Fig. 5 b, and deflection distance r is I-shaped
Radial distance between the streamlined channel steel maximum deflection point of tee section and two neighboring bending midpoint, bending angle θ are adjacent two
Angle between a bending between the tangent line of midpoint and two neighboring bending midpoint line, the design are reducing coil tail portion whirlpool
It ensure that maximum ventilation heat dissipation effect while stream loss.
In order to improve the diversion effect of channel steel, between each stator tooth of adjacent sectional stator core (1) of the present invention
Place two equal channel steels of straight length, i.e. an I-shaped cross-section linear type channel steel, an I-shaped cross-section streamline type groove
Steel, as shown in Figure 6.In order to reach best heat dissipation effect, the streamlined channel steel in I-shaped cross-section is made of six bendings, and channel steel is straight
Line length is related with motor stator outer diameter and stator slot height, by optimization design, Ls1=0.13 (D-2hs(the D-2h of)~0.18s),
That is Ls1=142.6mm~197.5mm, preferably 164mm.Two channel steels are installed in the air duct between two stator tooth axial directions,
Respectively one above-mentioned I-shaped cross-section linear type channel steel and an above-mentioned streamlined channel steel in I-shaped cross-section.Fig. 7 is in Fig. 6
The enlarged drawing of part A, in channel steel proximal ends, two channel steels are h apart from iron core Edge Distancet1, length is 7mm~10mm, excellent
Select 7.7mm, maximum distance and minimum range difference of the streamlined channel steel in I-shaped cross-section apart from I-shaped cross-section linear type channel steel
For ht2And ht3, ht2And ht3Size and I-shaped cross-section linear type channel steel width L5, the streamlined channel steel deflection distance in I-shaped cross-section
R and stator groove width btIt is related, by optimization design, maximum distance ht2=0.42L5+0.87r-0.13bt~1.8L5-r-
0.28bt, minimum range ht3=0.58L5-0.49r-0.13bt~0.98L5-1.5r-0.04bt, in the present embodiment, ht2=
4.33mm~4.99mm, preferably 4.56mm, ht3=0.17mm~1.05mm, preferably 0.96mm.The streamlined channel steel in I-shaped cross-section
Center and nearside tooth back gauge (b in Fig. 7t1) and stator facewidth btAnd the streamlined channel steel deflection distance r in I-shaped cross-section is related, bt1
=0.5r+0.3bt~0.4r+0.2bt, i.e. bt1=5.46mm~7.79mm, preferably 6.4mm；I-shaped cross-section linear type channel steel
Center and nearside tooth back gauge (b in Fig. 6t2) and I-shaped cross-section linear type channel steel width L5And stator facewidth btIt is related, i.e. bt2
=0.22bt+0.11L5~0.6bt-0.45L5, i.e. bt2=5.13mm~7.98mm, preferably 5.8mm.On the whole, I-shaped cross-section
The streamlined channel steel of linear type channel steel and I-shaped cross-section is circumferentially in regularity distribution, the corresponding channel steel of adjacent three stator tooths
Be one group, any one group channel steel mounting means be followed successively by the direction of the clock " the streamlined channel steel in the I-shaped cross-section 164mm ",
" I-shaped cross-section 164mm linear type channel steel ", " the streamlined channel steel in the I-shaped cross-section 164mm ", " I-shaped cross-section 164mm straight line
Type groove steel ", " I-shaped cross-section 164mm linear type channel steel ", " the streamlined channel steel in the I-shaped cross-section 164mm ", distribution are such as above-mentioned
Shown in Fig. 6.
In order to which coil tail portion eddy-current loss is effectively reduced, two channel steels of each stator between cog are designed to long and short two,
That is the streamlined long channel steel in an I-shaped cross-section, an I-shaped cross-section linear type short channel-section steel, as shown in Figure 8.Long channel steel straight line
Length is identical with the foregoing description, is Ls1=164mm, short channel-section steel straight length are Ls2, Ls2With motor stator outer diameter D and stator slot
High hsIt is related, Ls2=0.1 (D-2hs(the D-2h of)~0.15s), i.e. Ls2=109.8mm~164.7mm, preferably 116mm.Each channel steel
It is installed in the air duct between two stator tooth axial directions, two channel steels, respectively an I-shaped cross-section is placed on each tooth
Linear type short channel-section steel, the streamlined long channel steel in an I-shaped cross-section.On the whole, the streamlined long channel steel in I-shaped cross-section, I-shaped
Section linear type short channel-section steel is circumferentially in regularity distribution, and the corresponding channel steel of adjacent three stator tooths is one group, any one
The channel steel mounting means of group is followed successively by that " the streamlined long channel steel in the I-shaped cross-section 164mm ", " 116mm is I-shaped in the direction of the clock
Section linear type short channel-section steel ", " the streamlined long channel steel in the I-shaped cross-section 164mm ", " the short slot of the I-shaped cross-section 116mm linear type
Steel ", " I-shaped cross-section 116mm linear type short channel-section steel ", " the streamlined long channel steel in the I-shaped cross-section 164mm ".The program with it is above-mentioned
Scheme has increased slightly compared to wind speed in air duct, and stator coil tail portion vortex is obviously reduced, and motor radiating rate improves 13% or so.
The above description is merely a specific embodiment, but protection of the invention is not limited thereto, this field skill
For art personnel in the case where not changing principle, the improvement for any no substantial variations made also should be regarded as protection model of the invention
It encloses.
The content that description in the present invention is not described in detail belongs to the prior art well known to professional and technical personnel in the field.
Claims (2)
1. a kind of motor stator ventilation steel channel structure, it is characterised in that: mainly include sectionalized stator iron core (1), Radial ventilation duct
(2) and ventilation steel channel (3), wherein sectionalized stator iron core (1) is axially distributed, and number of segment n is true by the outer diameter of stator core (1)
It is fixed, it is n=D/55~D/50, it is Radial ventilation duct between adjacent sectional stator core (1) that D, which is electric machine stator iron outer diameter,
(2), it is formed by circumferential ventilation steel channel (3), the axial width L of Radial ventilation duct (2)dOutside electric machine stator iron
Diameter D and axial length LfeIt is related, D=1260mm, Lfe=1340mm, Ld=(0.1D+0.3Lfe)/55~(0.2D+0.1Lfe)/
35, LdIt is taken as 10mm, stator core (1) includes stator tooth (4) and stator slot (5), the stator tooth of adjacent sectional stator core (1)
(4) it is corresponded in the axial direction with stator slot (5), is placed with winding in stator slot (5), ventilation steel channel (3) is mounted on adjacent point
Between the stator tooth (4) of section stator core (1), two are placed between each stator tooth of the adjacent sectional stator core (1)
Channel steel, section be all made of it is I-shaped, wherein one be I-shaped cross-section linear type channel steel, another for I-shaped cross-section it is streamlined
Channel steel, wherein I-shaped cross-section linear type channel steel width is L5, size and stator facewidth btIt is related, it is L5=bt/ 3~bt/ 2,
bt=19.3mm, L5It is taken as 8mm；The I-shaped cross-section wide L of linear type channel steel sole1, size and I-shaped cross-section linear type channel steel
Width L5It is equal, I-shaped cross-section linear type channel steel sole thickness L3With air duct axial width LdIt is related, it is L3=Ld/ 10~
Ld/ 7, L3It is taken as 1.2mm；The I-shaped cross-section wide L of linear type channel steel web4, size and I-shaped cross-section linear type channel steel foot
The wide L of plate1It is related, it is L4=L1/ 3~L1/ 2, L4It is taken as 4mm；I-shaped cross-section linear type channel steel is with a thickness of L2, size and ventilation
Ditch axial width LdIt is related, i.e. L2=Ld, L2=10mm；I-shaped angle beta and the wide L of I-shaped cross-section linear type channel steel sole1And
I-shaped cross-section linear type channel steel thickness L2It is related,β is taken as being 42 °；Wherein I-shaped angle
Spend angle of the β between I-shaped cross-section linear type channel steel I-shaped cross-section horizontal edge and bevel edge；The I-shaped cross-section is streamlined
Channel cross-section structure size is identical as I-shaped cross-section linear type channel steel, and the streamlined channel steel width in I-shaped cross-section is L6, size
It is equal with linear type channel steel width, i.e. L6=L5, L6=8mm；Channel steel deflection distance r and bending angle θ and stator facewidth btAnd it is fixed
The sub- high h of toothsIt is related, i.e. r=bt/ 6~bt/ 3, r are taken as 4mm；θ is taken as 17 °；Wherein it is bent
Distance r is the radial distance between the streamlined channel steel maximum deflection point in I-shaped cross-section and two neighboring bending midpoint, bending angle
Spend angle of the θ between two neighboring bending between the tangent line of midpoint and two neighboring bending midpoint line；Described adjacent point
The equal channel steel of two straight lengths, i.e. an I-shaped cross-section straight line are placed between each stator tooth of section stator core (1)
Type groove steel and a streamlined channel steel in I-shaped cross-section, wherein the streamlined channel steel in I-shaped cross-section is made of six bendings, and slot
Steel straight length is related with motor stator outer diameter and stator slot height, is Ls1=0.13 (D-2hs(the D-2h of)~0.18s), Ls1It is taken as
164mm；In channel steel proximal ends, two channel steels are h apart from iron core Edge Distancet1, length is 7mm~10mm, ht1It is taken as
7.7mm；Maximum distance and minimum range of the streamlined channel steel in I-shaped cross-section apart from I-shaped cross-section linear type channel steel is respectively
ht2And ht3, ht2And ht3Size and I-shaped cross-section linear type channel steel width L5, the streamlined channel steel deflection distance r in I-shaped cross-section
And stator groove width btIt is related, maximum distance ht2=0.42L5+0.87r-0.13bt~1.8L5-r-0.28bt, ht2It is taken as
4.56mm；Minimum range ht3=0.58L5-0.49r-0.13bt~0.98L5-1.5r-0.04bt, ht3It is taken as 0.96mm；It is I-shaped
Gross section streamlines type groove steel center and nearside tooth back gauge bt1With stator facewidth btAnd the streamlined channel steel deflection distance r in I-shaped cross-section
It is related, it is bt1=0.5r+0.3bt~0.4r+0.2bt, bt1It is taken as 6.4mm；I-shaped cross-section linear type channel steel center and nearside
Tooth back gauge bt2With I-shaped cross-section linear type channel steel width L5And stator facewidth btIt is related, i.e. bt2=0.22bt+0.11L5~
0.6bt-0.45L5, bt2It is taken as 5.8mm；On the whole, the streamlined channel steel of I-shaped cross-section linear type channel steel and I-shaped cross-section exists
It is in regularity distribution on circumference, the corresponding channel steel of adjacent three stator tooths is one group, and channel steel mounting means of any one group is pressed
It is followed successively by " the streamlined channel steel in I-shaped cross-section ", " I-shaped cross-section linear type channel steel ", " I-shaped cross-section streamline clockwise
Type groove steel ", " I-shaped cross-section linear type channel steel ", " I-shaped cross-section linear type channel steel ", " the streamlined channel steel in I-shaped cross-section ".
2. a kind of motor stator ventilation steel channel structure according to claim 1, it is characterised in that: the adjacent sectional stator
The channel steel that two straight lengths do not wait, i.e. a streamlined elongated slot in I-shaped cross-section are placed between each stator tooth of iron core (1)
Steel, an I-shaped cross-section linear type short channel-section steel, long channel steel straight length Ls1=0.13 (D-2hs(the D-2h of)~0.18s), Ls1=
164mm；Short channel-section steel straight length is Ls2=0.1 (D-2hs(the D-2h of)~0.15s), hs=81.4mm, Ls2It is taken as 116mm；It is whole
On, the streamlined long channel steel in I-shaped cross-section, I-shaped cross-section linear type short channel-section steel are circumferentially in regularity distribution, and adjacent three
The corresponding channel steel of stator tooth is one group, and channel steel mounting means of any one group is followed successively by that " 164mm is I-shaped in the direction of the clock
The long channel steel of gross section streamlines type ", " I-shaped cross-section 116mm linear type short channel-section steel ", " the streamlined elongated slot in the I-shaped cross-section 164mm
Steel ", " I-shaped cross-section 116mm linear type short channel-section steel ", " I-shaped cross-section 116mm linear type short channel-section steel ", " 164mm is I-shaped
The long channel steel of gross section streamlines type ".
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2020129861A (en) * | 2019-02-07 | 2020-08-27 | 本田技研工業株式会社 | Stator of rotary electric machine |
| CN113178966B (en) * | 2021-04-15 | 2023-03-24 | 上海电气风电集团股份有限公司 | Motor ventilation groove structure, stator and motor |
| CN116667601B (en) * | 2023-02-27 | 2024-04-30 | 哈尔滨理工大学 | Motor inner air path design with axial flow inner fan |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201813226U (en) * | 2010-09-14 | 2011-04-27 | 上海福源智业投资集团有限公司 | Air duct wall of generator stator core |
| CN203607943U (en) * | 2013-11-13 | 2014-05-21 | 南阳防爆集团股份有限公司 | High-efficiency high-rotating speed high-capacity self-lubricating flame-proof motor rotor structure |
| EP2765684A2 (en) * | 2013-02-08 | 2014-08-13 | Hitachi, Ltd. | Rotating electrical machine |
| CN104578484A (en) * | 2014-12-26 | 2015-04-29 | 北京金风科创风电设备有限公司 | Ventilation channel steel, manufacturing method thereof, ventilation structure and motor |
| CN204559256U (en) * | 2015-03-05 | 2015-08-12 | 哈尔滨电机厂有限责任公司 | A kind of novel gas flow parts |
| 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201898388U (en) * | 2010-09-14 | 2011-07-13 | 上海福源智业投资集团有限公司 | Ventilated channel steel used for air flue wall of stator core |
-
2016
- 2016-08-29 CN CN201610756114.8A patent/CN106329758B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201813226U (en) * | 2010-09-14 | 2011-04-27 | 上海福源智业投资集团有限公司 | Air duct wall of generator stator core |
| EP2765684A2 (en) * | 2013-02-08 | 2014-08-13 | Hitachi, Ltd. | Rotating electrical machine |
| CN203607943U (en) * | 2013-11-13 | 2014-05-21 | 南阳防爆集团股份有限公司 | High-efficiency high-rotating speed high-capacity self-lubricating flame-proof motor rotor structure |
| CN104578484A (en) * | 2014-12-26 | 2015-04-29 | 北京金风科创风电设备有限公司 | Ventilation channel steel, manufacturing method thereof, ventilation structure and motor |
| CN204559256U (en) * | 2015-03-05 | 2015-08-12 | 哈尔滨电机厂有限责任公司 | A kind of novel gas flow parts |
| 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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| CN106329758A (en) | 2017-01-11 |
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