CN105990921B - The motor rotor silicon steel sheet of lift structure intensity - Google Patents
The motor rotor silicon steel sheet of lift structure intensity Download PDFInfo
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- CN105990921B CN105990921B CN201510085570.XA CN201510085570A CN105990921B CN 105990921 B CN105990921 B CN 105990921B CN 201510085570 A CN201510085570 A CN 201510085570A CN 105990921 B CN105990921 B CN 105990921B
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Abstract
The present invention provides a kind of motor rotor silicon steel sheet of lift structure intensity, it includes:One ring slice;One centre bore, is penetratingly formed on ring slice;And multiple hollow out elements, it is penetratingly formed on ring slice, it is arranged as a circle and is looped around centre bore periphery, there is each hollow out element an inverted trapezoidal to engrave hole, both sides separation rib, a center rib, two outer support diagonal ribs and two inner support diagonal ribs, wherein, substantially * shapes structure is presented in the center rib, the two outer supports diagonal rib and the two inner supports diagonal rib jointly.Motor rotor silicon steel sheet can improve structural strength by the configuration of hollow out element and reduce rotary inertia.
Description
Technical field
The present invention is on a kind of motor, and espespecially a kind of motor rotor silicon steel sheet of lift structure intensity, it can increase itself
Structural strength avoids the rotor for including silicon steel sheet from having structural strength to decline and rotary inertia is excessive asks with mitigating own wt
Topic.
Background technology
Induction motor is commonly used on most motor product, and has a stator, a rotor and multiple silicon steel
Piece, the stator is with multiple silicon steel sheets, rotor also with multiple silicon steel sheets.The principle of induction motor is when electric current flows through stator
During silicon steel sheet, stator silicon steel sheet can produce rotary electromagnetic field, this electromagnetic field will also trigger the inductive rod of internal rotor in axial direction
Direction produces electric current, this electric current produces a loop with the ora terminalis of both sides again, causes rotor itself to produce rotating machinery special
Property.This is converted into common mechanical moment of torsion by faradic generation, most often by being used on general motor.
If however, the preponderance of the silicon steel sheet of internal rotor, or structural strength deficiency, often the characteristic of this rotor without
Method relatively has superior mechanical properties performance, and rotor efficiency will be also limited.
Figure 12 and Figure 13 are refer to, there is traditional rotor silicon steel sheet 60 upper annular array to have multiple hollow-out units 61, this
A little hollow-out units 61 are that have angle theta based on virtual1Sector region and draw point definition.Formed and worn in each hollow-out unit 61
Hole, forms a hollow hexagon ribs 611 in perforation, which has four flanks, and each flank is thick
Spend T2All same.In addition, definition has multiple distances from the center of circle to specific place on rotor silicon steel sheet 60, it is respectively R1、R2、R3、R4,
Mutual relational expression is R3-R2≥R4-R3。
However, the above-mentioned conventional rotors silicon steel sheet 60 using hexagon ribs 611, still there is the overweight and structure bad
The problem of, cause the rotary inertia of rotor silicon steel sheet 60 big, and structural strength is bad.
The content of the invention
The present inventor leads in view of the hollow-out unit structure of the rotor silicon steel sheet of conventional motor is bad and silicon steel sheet weight weight
The problems such as rotor structure intensity is low and rotary inertia is excessive is caused, improves its deficiency and missing, and then it is strong to provide a kind of lift structure
The motor rotor silicon steel sheet of degree.
It is an object of the invention to provide a kind of motor rotor silicon steel sheet of lift structure intensity, it can increase self structure
It is excessive with rotary inertia to avoid the problem that the rotor for including silicon steel sheet has structural strength to decline with mitigating own wt for intensity.
In order to achieve the above object, the motor rotor silicon steel sheet of foregoing lift structure intensity includes:
One ring slice;
One centre bore, is penetratingly formed on ring slice;And
Multiple hollow out elements, are penetratingly formed on ring slice, are arranged as a circle and are looped around centre bore periphery, each hollow out
There is element an inverted trapezoidal to engrave hole, both sides separation rib, a center rib, two outer support diagonal ribs and two inner support diagonal ribs, the both sides
Separation rib is formed in inverted trapezoidal and engraves hole two opposite sides, and two adjacent hollow out elements share side separation rib, which forms
Engrave in hole in inverted trapezoidal and extend along ring slice radial direction, the two outer supports diagonal rib engraved respectively from inverted trapezoidal the inner edge in hole to
The center rib extends, and is connected to the center rib, and the inner edge which engraves hole from inverted trapezoidal respectively is prolonged to center rib
Stretch, and be connected respectively on the two outer supports diagonal rib, wherein, the center rib, the two outer supports diagonal rib and two inner support are oblique
* shape structures are presented in rib jointly.
By above-mentioned technological means, the center rib, outer of * shape structures is presented inside the hollow out element of motor rotor silicon steel sheet
Diagonal rib and inner support diagonal rib are supported, there is excellent structural strength, the stress point of motor rotor silicon steel sheet entirety can be reduced
Implantation and structure frequency, and the inverted trapezoidal in the hollow out element of motor rotor silicon steel sheet engraves hole can considerably reduce motor rotor silicon
The overall weight of steel disc, therefore, the present invention have the structural strength that can effectively promote motor rotor, reduce the rotation of motor rotor
Inertia.
The two outer corners that the two outer supports diagonal rib engraves hole from inverted trapezoidal respectively extend to the center rib;Two inner support is oblique
Rib is engraved corner in the two of hole from inverted trapezoidal respectively and is extended to center rib.
The two outer supports diagonal rib extends from both sides separation rib at two outer corners to the center rib respectively;This is in two
Support diagonal rib is engraved corner in the two of hole from inverted trapezoidal respectively and is extended to center rib.
R2It is defined as distance of the ring slice center of circle to each hollow out element by the inward flange of centre bore;R1It is defined as the center
The radius in hole, R2-R1>5.0mm。
R3The center of circle is defined as to center rib and the distance of outer support diagonal rib connection;R4It is oblique to outer support to be defined as the center of circle
Rib engraves the distance of hole inner edge connection with inverted trapezoidal;R3-R2≥R4-R3。
R5It is defined as the outer peripheral distance that ring slice circumference is leaned in the ring slice center of circle to each hollow out element;2.0×(R3-
R2)>R5-R3>1.5×(R3-R2)。
The scope of the hollow out element is that the sector region fictionalized by one on ring slice is defined, the sector
Region has an angle theta;θ=(360 °/n), n 10<n<20.
Ф is defined as angle either each interior branch between each outer support diagonal rib in each hollow out element and center rib
Support the angle of diagonal rib and side separation rib;Ф covering scopes are 30 degree of -60 degree.
T is defined as the thickness of each center rib in each hollow out element, outer support diagonal rib or inner support diagonal rib;T1It is fixed
Justice is the thickness of each side separation rib outer end in each hollow out element, then T1>=x × T, 3 >=x >=2.
Brief description of the drawings
The following drawings is only intended to, in doing schematic illustration and explanation to the present invention, not delimit the scope of the invention.Wherein:
Fig. 1 is the stereo appearance figure that the 1st embodiment of the invention is assembled into motor.
Fig. 2 is the three-dimensional exploded view that the 1st embodiment of the invention is assembled into motor.
Fig. 3 is the stereo appearance figure that the 1st embodiment of the invention is installed on rotor.
Fig. 4 is another stereo appearance figure that the 1st embodiment of the invention is installed on rotor.
Fig. 5 is the three-dimensional exploded view of the 1st embodiment of the invention and the shaft of rotor.
Fig. 6 is the front view of the 1st embodiment of the invention.
Fig. 7 is the partial enlargement front view of the 1st embodiment of the invention.
Fig. 8 is the front view of the 2nd embodiment of the invention.
Fig. 9 is the partial enlargement front view of the 2nd embodiment of the invention.
Figure 10 is the front view of the 3rd embodiment of the invention.
Figure 11 is the partial enlargement front view of the 3rd embodiment of the invention.
Figure 12 is the front view of conventional motor rotor silicon steel sheet.
Figure 13 is the partial enlargement front view of conventional motor rotor silicon steel sheet.
Main element label declaration:
10th, 101 ring slice of 10a, 10b motor rotor silicon steel sheet
100 centre bore, 11 hollow out element
110 inverted trapezoidals engrave 113 outer corner of hole
12 side separation rib of corner in 115
121 outer ends
13 center ribs 14,14a, 14b outer support diagonal rib
15 inner support diagonal ribs
60 silicon steel sheet, 61 hollow-out unit
611 hexagon ribs
70 rotor, 71 shaft
80 stator, 81 assembling space
90 shell, 91 housing
92 clamshells
θ, Ф angle
R1、R2、R3、R4、R5Radius
T、T1、T2Thickness
Embodiment
In order to which the technical features, objects and effects of the present invention are more clearly understood, now control illustrates this hair
Bright embodiment.
Fig. 1 and Fig. 2 are refer to, the 1st of the motor rotor silicon steel sheet 10 of the multiple lift structure intensity of the present invention implements to pacify
It is attached on a motor sub-assembly.The motor sub-assembly includes a shell 90, a stator 80 and a rotor 70.
With further reference to Fig. 2 to 5, which there is a housing 91 and a clamshell 92, housing 91 to have to be hollow
There is a room, clamshell 92 removably closes 91 room of housing.The stator 80 is installed in 91 room of housing, in stator 80
It is interior formed with an assembling space 81.The rotor 70 is arranged in assembling space 81 in a rotatable manner, and one is provided with rotor
Shaft 71.
With further reference to Fig. 6 to Fig. 7, the 1st embodiment of the multiple motor rotor silicon steel sheets 10 of the present invention is superimposed with each other
Become columned motor rotor silicon steel sheet component together to be set in shaft 71, each motor rotor silicon steel sheet 10 has a ring
Shape sheet body 101, a centre bore and multiple hollow out elements 11.
The centre bore is formed on the ring slice 101.
The plurality of hollow out element 11 is penetratingly formed on ring slice 101, is arranged as a circle and is looped around centre bore periphery.
The exact range of hollow out element 11 be by one on ring slice 101 virtual (or restriction) sector region for going out (see Fig. 6)
Defined, which has an angle theta.
There is each hollow out element 11 inverted trapezoidal to engrave hole 110, both sides separation rib 12, a center rib, two outer support diagonal ribs 14
And two inner support diagonal ribs 15, the both sides separation rib 12 are formed in inverted trapezoidal and engrave 110 two opposite sides of hole, and two adjacent hollow out elements
11 share side separation rib 12, which is in be formed in inverted trapezoidal to engrave in hole 110 and along 101 radial direction of ring slice prolong
To stretch, the inner edge which engraves hole 110 from inverted trapezoidal respectively extends to the center rib, and is connected to the center rib,
The inner edge that the two inner supports diagonal rib 15 engraves hole 110 from inverted trapezoidal respectively extends to center rib, and is connected respectively to two outer support
On diagonal rib 14, wherein, substantially * shapes knot is presented in the center rib, the two outer supports diagonal rib 14 and the two inner supports diagonal rib jointly
Structure.
The characteristics of in 1st example structure of the invention, is:Two outer support diagonal ribs 14 of each hollow out element 11 are respectively from
The trapezoidal two outer corners 113 for engraving hole 110 extend to the center rib;The two inner supports diagonal rib 15 engraves hole 110 from inverted trapezoidal respectively
Corner 115 extends to center rib in two.
In addition, put up the best performance in the 1st embodiment of the invention, but the weight for comparing other embodiment is most heavy.
2nd embodiment of the invention is roughly the same with the 1st embodiment, difference be in:Two outer supports of each hollow out element 11
Diagonal rib 14a extends from both sides separation rib 12 at two outer corners 113 to the center rib respectively, and two exterior angle of indirect connection
Corner 113.
In the 2nd embodiment of the invention, R2101 center of circle of ring slice is defined as to each hollow out element 11 by the interior of centre bore
The distance at edge;R1The radius of the centre bore is defined as, then R2-R1>5.0mm.This definition is mainly because the centre bore and shaft 71 connect
Contacting surface, must have enough thickness to bear against, if thickness is insufficient, by with the presence of certain risk of stress concentrations.
With further reference to following table one (the parameters comparison sheet of three embodiments of the invention and prior art), R3
The center of circle is defined as to center rib and the distance of 14 connection of outer support diagonal rib;R4The center of circle is defined as to outer support diagonal rib 14 with falling
The trapezoidal distance for engraving 110 inner edge connection of hole;R3-R2≥R4-R3For optimal structure-reinforced feature.In structure frequency with answering
In power distribution, its value has under 14,000rpm to have excellent performance compared to other forms, only drawback is that weight
It is most one of heavy for weight among this patent, therefore, compared with all characteristics that can not meet this patent requirement.
In addition, R5101 center of circle of ring slice is defined as to each hollow out element 11 by the outer peripheral of 101 circumference of ring slice
Distance;2.0×(R3-R2)>R5-R3>1.5×(R3-R2) it is optimized design requirement, learnt by following table one, this shape knot
The frequency of structure, which has compared prior art, opposite increase, and stress distribution also has opposite mitigation with weight with inertia, therefore
10 whole efficiency of motor rotor silicon steel sheet can be made to have opposite raising.
It refer to Fig. 8 and Fig. 9, θ=(360 °/n), n 10<n<20, Ф are defined as each outer support diagonal rib 14 and center rib
Between angle either each inner support diagonal rib 15 and side separation rib 12 angle;Ф covering scopes for 30 degree -60 spend between, this
Feature determines the important parameter of rotor weight and stress distribution.
Another key character parameter in 2nd embodiment of the invention, i.e., each center rib, outer support diagonal rib 14 or inner support are oblique
The thickness T of rib 15, and the thickness T of 12 outer end 121 of each side separation rib1.The thickness T=1.3mm, T1>=x × T, 3 >=x >=2,
This parameter is also one of optimal loss of weight and structure-reinforced emphasis parameter.
2nd embodiment of the invention is embodiment optimal on the whole, therefore is the main embodiment of the present invention, it eliminates and turns
Sub- silicon steel sheet preponderance problem.
With further reference to Figure 10 and Figure 11, two outer support diagonal rib 14b of each hollow out element 11 of the 3rd embodiment of the invention
Extend respectively from the centre of both sides separation rib 12 to the center rib, and the outer corner 113 of indirect connection two.Wherein, distance half
Footpath relational expression is R5-R3>2.0×(R3-R2), though the structure has splendid loss of weight performance, stress distribution value and structure frequency phase
It is poor to compare the 1st and the 2nd embodiment.
The rotor silicon steel sheet of the prior art of following table one then passes by be thought preferable structural form extensively, but by table one
Can learn, by the stress distribution of rotor silicon steel sheet entirety with structure frequency value come compared with, this, which is enough to confirm the present invention, has quite
Outstanding structure-reinforced characteristic and in place of can making the space that rotor silicon steel sheet has loss of weight with lowering inertia again.
Table one:The parameters comparison sheet of three embodiments of the invention and prior art
By above-mentioned technological means, the center of * shape structures is presented in the inside of hollow out element 11 of motor rotor silicon steel sheet 10
Rib, outer support diagonal rib 14 and inner support diagonal rib 15, have excellent structural strength, it is whole can to reduce motor rotor silicon steel sheet 10
The stress distribution value and structure frequency of body, and the inverted trapezoidal in the hollow out element 11 of motor rotor silicon steel sheet 10 engrave hole 110 can
The overall weight of motor rotor silicon steel sheet 10 is considerably reduced, therefore, the present invention is strong with the structure that can effectively promote motor rotor
Degree, reduces the rotary inertia of motor rotor.
The foregoing is merely the schematical embodiment of the present invention, the scope of the present invention is not limited to.It is any
Those skilled in the art, the equivalent variations made on the premise of the design of the present invention and principle is not departed from and modification, should all
Belong to the scope of protection of the invention.And it should be noted that the present invention each part be not limited in above-mentioned entirety should
With, each technical characteristic described in specification of the invention can according to be actually needed selection one individually use or select it is multinomial
Combine use, and therefore, the present invention covers the other combinations related with this case inventive point and concrete application in the nature of things.
Claims (9)
- A kind of 1. motor rotor silicon steel sheet of lift structure intensity, it is characterised in that the motor rotor of the lift structure intensity Silicon steel sheet includes:One ring slice;One centre bore, is penetratingly formed on the ring slice;AndMultiple hollow out elements, are penetratingly formed on the ring slice, are arranged as a circle and are looped around the centre bore periphery, respectively It is oblique that there is the hollow out element inverted trapezoidal to engrave hole, both sides separation rib, a center rib, two outer support diagonal ribs and two inner supports Rib, the two side separation ribs are formed in the inverted trapezoidal and engrave hole two opposite sides, and the two adjacent hollow out elements share an institute Side separation rib is stated, the center rib is formed in the inverted trapezoidal and engraves in hole and extend along the ring slice radial direction, two institutes State outer support diagonal rib and engrave the inner edge in hole from the inverted trapezoidal respectively and extend to the center rib, and be connected to the center rib, two The inner edge that the inner support diagonal rib engraves hole from the inverted trapezoidal respectively extends to the center rib, and it is described outer to be connected respectively to two Support on diagonal rib, wherein, * shape knots are presented in the center rib, the two outer support diagonal ribs and the two inner support diagonal ribs jointly Structure.
- 2. the motor rotor silicon steel sheet of lift structure intensity as claimed in claim 1, it is characterised in that two outer supports are oblique The two outer corners that rib engraves hole from the inverted trapezoidal respectively extend to the center rib;The two inner support diagonal ribs fall described in respectively It is trapezoidal engrave hole two in corner extend to the center rib.
- 3. the motor rotor silicon steel sheet of lift structure intensity as claimed in claim 1, it is characterised in that two outer supports are oblique Rib extends from the two side separation ribs at two outer corners to the center rib respectively;The two inner support diagonal ribs respectively from The inverted trapezoidal is engraved corner in the two of hole and is extended to the center rib.
- 4. the motor rotor silicon steel sheet of lift structure intensity as claimed in claim 3, it is characterised in that R2It is defined as the ring Distance of the shape sheet body center of circle to each hollow out element by the inward flange of the centre bore;R1It is defined as the half of the centre bore Footpath, R2-R1>5.0mm。
- 5. the motor rotor silicon steel sheet of lift structure intensity as claimed in claim 4, it is characterised in that R3The center of circle is defined as to arrive The center rib and the distance of the outer support diagonal rib connection;R4Be defined as the center of circle to the outer support diagonal rib with it is described fall The trapezoidal distance for engraving hole inner edge connection;R3-R2≥R4-R3。
- 6. the motor rotor silicon steel sheet of lift structure intensity as claimed in claim 5, it is characterised in that R5It is defined as the ring The outer peripheral distance of the ring slice circumference is leaned in the shape sheet body center of circle to each hollow out element;2.0×(R3-R2)>R5-R3> 1.5×(R3-R2)。
- 7. the motor rotor silicon steel sheet of the lift structure intensity as any one of claim 1 to 6, it is characterised in that institute The scope for stating hollow out element is defined by a sector region fictionalized on the ring slice, the sector region With an angle theta;θ=(360 °/n), n 10<n<20.
- 8. the motor rotor silicon steel sheet of lift structure intensity as claimed in claim 6, it is characterised in that Ф is defined as each described The angle between each outer support diagonal rib and the center rib either each inner support diagonal rib and institute in hollow out element State the angle of side separation rib;Ф covering scopes are 30 degree of -60 degree.
- 9. the motor rotor silicon steel sheet of lift structure intensity as claimed in claim 8, it is characterised in that T is defined as each described The thickness of each center rib, the outer support diagonal rib or the inner support diagonal rib in hollow out element;T1It is defined as each described The thickness of each side separation rib outer end in hollow out element, T1>=x × T, 3 >=x >=2.
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CN201510085570.XA CN105990921B (en) | 2015-02-17 | 2015-02-17 | The motor rotor silicon steel sheet of lift structure intensity |
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CN105990921B true CN105990921B (en) | 2018-04-17 |
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CN2810018Y (en) * | 2005-05-17 | 2006-08-23 | 亿宝企业有限公司 | Motor gear-box transmission assembly mechanism |
TWM317117U (en) * | 2006-12-29 | 2007-08-11 | Able Entpr Co Ltd | Gearing assembly mechanism of electrical machinery |
TWM327998U (en) * | 2007-08-29 | 2008-03-01 | jing-li Cai | Motor structure of the air gun |
JP2008312348A (en) * | 2007-06-14 | 2008-12-25 | Mitsuba Corp | Electric motor |
CN201336594Y (en) * | 2008-12-16 | 2009-10-28 | 哈尔滨电机厂有限责任公司 | Supporting structure for V-shaped rotor of salient-pole motor |
CN202918078U (en) * | 2012-12-03 | 2013-05-01 | 浙江泰达微电机有限公司 | Shaded pole motor one-piece punching sheet |
CN203774910U (en) * | 2014-03-31 | 2014-08-13 | 杭州中科赛思伺服电机有限公司 | V-shaped servo motor rotor punching sheet |
CN204425066U (en) * | 2015-02-17 | 2015-06-24 | 八达创新科技股份有限公司 | The motor rotor silicon steel sheet of lift structure intensity |
-
2015
- 2015-02-17 CN CN201510085570.XA patent/CN105990921B/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2810018Y (en) * | 2005-05-17 | 2006-08-23 | 亿宝企业有限公司 | Motor gear-box transmission assembly mechanism |
TWM317117U (en) * | 2006-12-29 | 2007-08-11 | Able Entpr Co Ltd | Gearing assembly mechanism of electrical machinery |
JP2008312348A (en) * | 2007-06-14 | 2008-12-25 | Mitsuba Corp | Electric motor |
TWM327998U (en) * | 2007-08-29 | 2008-03-01 | jing-li Cai | Motor structure of the air gun |
CN201336594Y (en) * | 2008-12-16 | 2009-10-28 | 哈尔滨电机厂有限责任公司 | Supporting structure for V-shaped rotor of salient-pole motor |
CN202918078U (en) * | 2012-12-03 | 2013-05-01 | 浙江泰达微电机有限公司 | Shaded pole motor one-piece punching sheet |
CN203774910U (en) * | 2014-03-31 | 2014-08-13 | 杭州中科赛思伺服电机有限公司 | V-shaped servo motor rotor punching sheet |
CN204425066U (en) * | 2015-02-17 | 2015-06-24 | 八达创新科技股份有限公司 | The motor rotor silicon steel sheet of lift structure intensity |
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