CN110289712A - A kind of big sulculus stator punching that MgO-ZrO_2 brick is 4 - Google Patents
A kind of big sulculus stator punching that MgO-ZrO_2 brick is 4 Download PDFInfo
- Publication number
- CN110289712A CN110289712A CN201910612482.9A CN201910612482A CN110289712A CN 110289712 A CN110289712 A CN 110289712A CN 201910612482 A CN201910612482 A CN 201910612482A CN 110289712 A CN110289712 A CN 110289712A
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- Prior art keywords
- slot
- stator
- stator slot
- big
- isosceles trapezoid
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- 238000004080 punching Methods 0.000 title claims abstract description 21
- 239000011449 brick Substances 0.000 title claims abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 30
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000004907 flux Effects 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 230000005611 electricity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 241000220324 Pyrus Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000021017 pears Nutrition 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
A kind of big sulculus stator punching that MgO-ZrO_2 brick is 4, belongs to threephase asynchronous technical field, solves to reduce the stray loss of threephase asynchronous, the temperature rise of reduction motor and noise, improves the technical issues of electric efficiency.Solution are as follows: be evenly arranged at least six groups for placing the stator slot group of copper wire according to circumferencial direction of the motor series on the anchor ring of the substrate along substrate is radial, MgO-ZrO_2 brick is four in stator slot group described in each group, stator slot group includes big stator slot and small stator slot, two big stator slot is set to the middle part of stator slot group, the two sides of two big stator slot have been symmetrically arranged a small stator slot, and the area of small stator slot is the 80%~95% of big stator groove area.The present invention can be such that slot utilization rate greatly improves, improve the distribution mechanism of stator punching yoke portion flux density by the flute profile of big stator slot and small stator slot distribution in design stator slot group.
Description
Technical field
The invention belongs to threephase asynchronous technical fields, and in particular to be a kind of MgO-ZrO_2 brick be 4 it is big
Sulculus stator punching.
Background technique
Threephase asynchronous includes five lossies, i.e. stator copper loss, rotor copper loss, core loss, mechanical consumption and miscellaneous
Dissipate loss.In order to make electric efficiency reach the different brackets such as efficient, ultra high efficiency, super ultra high efficiency, those skilled in the art are to items
Loss, which classifies, to be analyzed and is judged, countermeasure is taken to reduce loss.
Stator coil uses not equal circles low harmonic winding form, and the actual resistance of winding can not only reduced, reaches reduction
The purpose of stator copper loss, and the harmonic wave of different the number of turns is analyzed, judged and selected, thus effectively reduce motor due to
The stray loss that harmonic wave generates.In face of the different numerical value of every coil turn, the same flute profile of stator punching can cause different slots full
Rate.Big sulculus punching design is come into being as a result,.On the one hand in order to optimize embedding technology, keep the copper factor in each slot basic
Unanimously, effective to improve embedding quality；On the other hand the corresponding not yoke portion size of the big sulculus of same punching is miscellaneous for reducing motor
Dissipate loss and motor temperature rise, reduce noise etc., further refinement is needed by careful design and test.
Summary of the invention
It is an object of the invention to develop and improve the technical level of existing stator punching groove design, three are effectively reduced
The stray loss of phase asynchronous motor reduces temperature rise and the noise of motor, improves electric efficiency.The present invention provides every grade of one kind often
The big sulculus stator punching that phase slot number is three or five.
The present invention is achieved by the following technical programs.
A kind of big sulculus stator punching that MgO-ZrO_2 brick is 4, it includes the substrate of annulus shape, in which: according to electricity
Circumferencial direction of the machine series on the anchor ring of the substrate along substrate is radial to be evenly arranged at least six groups for placing copper
The stator slot group of line, MgO-ZrO_2 brick is four in stator slot group described in each group, and stator slot group includes big stator slot and small fixed
Pilot trench, the area of small stator slot are the 80%~95% of big stator groove area, and two big stator slot is set in stator slot group
Portion, the two sides of two big stator slot have been symmetrically arranged a small stator slot, and the area of small stator slot is big stator groove area
80%~95%；
The big stator slot or small stator slot include rectangular slot, the first isosceles trapezoid slot, the second isosceles trapezoid slot
And semi-circular groove, it is set as rectangular slot close to one end of substrate inner headed face, the width of rectangular slot is 2.5~4.2mm, rectangular
The height of shape slot is 0.9~2.0mm；The second isosceles trapezoid slot is set to separate center of circle one end of the first isosceles trapezoid slot,
The upper bottom edge of first isosceles trapezoid slot is conllinear with the long side of the rectangular slot, the bottom and second etc. of the first isosceles trapezoid slot
The upper bottom edge of waist dovetail groove is conllinear, and the width of the first isosceles trapezoid slot bottom is 5~10mm, the bevel edge of the first isosceles trapezoid slot
Angle between bottom is 20 °~30 °, and the width of the second isosceles trapezoid slot bottom is 8~15mm, the second isosceles trapezoid
The height of slot is 12~40mm；The semi-circular groove is set at the bottom position of the second isosceles trapezoid slot, semi-circular groove
Diameter is equal with the width of the second isosceles trapezoid slot bottom.
Further, the circumferencial direction on the periphery of the substrate along substrate is evenly arranged 8~16 for installing
The cramp slot of cramp, the bottom of the cramp slot are set as straight line, and the upper bottom edge of cramp slot is natural along the circumferencial direction of substrate
Reasonable film trap is arranged in the bottom of wherein any one cramp slot in opening, and the shape of the reason film trap is rectangle or trapezoidal.
Further, the big stator slot in the stator slot group and small stator slot are on the inner circle anchor ring of substrate along substrate
Circumferencial direction is radial to be evenly arranged 15 × n, and wherein n is the number of poles of motor.
Further, the width of the cramp slot is 14~25mm, is highly 3~5mm, between cramp slot bevel edge and bottom edge
Angle be 15 °~25 °.
Compared with prior art the invention has the benefit that
The big sulculus stator punching that a kind of MgO-ZrO_2 brick provided by the invention is 4, for not waiting embedding of circles coil
Craftsmanship and embedding increased quality are larger, and for promoting the efficiency of motor, improvement starts, it is significant to reduce noise of motor.It can
So that slot utilization rate greatly improves, improve the distribution mechanism of stator punching yoke portion flux density.It reduces the stray loss of motor, improve electricity
The starting performance of machine reduces the temperature rise of motor, improves the efficiency of motor, saves the overall cost of motor.
Detailed description of the invention
Fig. 1 is the size stator slot overall structure diagram that MgO-ZrO_2 brick is 4.
Fig. 2 is part i and the IIth part partial enlargement, superimposed flute profile comparative structure schematic diagram in Fig. 1, double in figure
Dotted line is small stator slot flute profile wheel profile.
Fig. 3 is that the IIIth part is cramp slot and reason film trap partial enlargement structural representation in Fig. 1.
In figure, 1 is substrate, and 2 be stator slot group, and 21 be rectangular slot, and 22 be the first isosceles trapezoid slot, and 23 be the second isosceles
Dovetail groove, 24 be semi-circular groove, and 25 be small stator slot, and 26 be big stator slot, and 3 be cramp slot, and 4 be reason film trap.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
A kind of big sulculus stator punching that MgO-ZrO_2 brick is 4, it includes the substrate 1 of annulus shape, in which: according to electricity
Circumferencial direction of the machine series on the anchor ring of the substrate 1 along substrate 1 is radial to be evenly arranged at least six groups for placing
The stator slot group 2 of copper wire, MgO-ZrO_2 brick is four in stator slot group 2 described in each group, and stator slot group 2 includes big stator slot 26
With small stator slot 25, the flute profile and area equation of all big stator slots 26, the slot of all small stator slots 25 in a stator punching
The flute profile of shape and area equation, big stator slot 26 or small stator slot 25 is open slot, is conducive to copper wire and places；Small stator slot 25
Area be the 80%~95% of big 26 area of stator slot, in stator slot group 2 big stator slot 26 and 25 flute profile of small stator slot distribution
As shown in Figure 1 to Figure 3, two big stator slot 26 is set to the middle part of stator slot group 2, and the two sides of two big stator slot 26 are right respectively
Title is provided with one small stator slot 25, i.e., the big stator slot 26 and small stator slot 25 of every extremely every four slots of phase be distributed as " it is small-big-
Greatly-small "；
The big stator slot 26 or the basic flute profile of small stator slot 25 are " pears " shape slot, include rectangular slot 21, the
One isosceles dovetail groove 22, the second isosceles trapezoid slot 23 and semi-circular groove 24, one end close to 1 inner headed face of substrate are set as rectangle
Slot 21, the width of rectangular slot 21 are 2.5~4.2mm, and the height of rectangular slot 21 is 0.9~2.0mm；The second isosceles ladder
Shape slot 23 is set to separate center of circle one end of the first isosceles trapezoid slot 22, the upper bottom edge of the first isosceles trapezoid slot 22 with it is described rectangular
The long side of shape slot 21 is conllinear, and the bottom of the first isosceles trapezoid slot 22 is conllinear with the upper bottom edge of the second isosceles trapezoid slot 23, and first
The width of 22 bottom of isosceles trapezoid slot is 5~10mm, and the angle between the bevel edge and bottom of the first isosceles trapezoid slot 22 is
20 °~30 °, the width of 23 bottom of the second isosceles trapezoid slot is 8~15mm, the height of the second isosceles trapezoid slot 23 is 12~
40mm；The semi-circular groove 24 is set at the bottom position of the second isosceles trapezoid slot 23, the diameter of semi-circular groove 24 and
The width of two isosceles dovetail grooves, 23 bottom is equal.
Further, the circumferencial direction on the periphery of the substrate 1 along substrate 1 is evenly arranged 8~16 for pacifying
The cramp slot 3 for filling cramp, plays the role of fixed iron core, cramp flute profile is set similar to isosceles trapezoid, the bottom of the cramp slot 3
It is set to straight line, the upper bottom edge of cramp slot 3 is naturally open along the circumferencial direction of substrate 1, in the bottom of wherein any one cramp slot 3
Reasonable film trap 4 is set, and the shape of the reason film trap 4 is rectangle or trapezoidal, and reason film trap 4 is used for laminating stator cores, guarantees
Punching directionality is unanimously used, and it is highly 1.5~4mm that the width of reason 4 upper bottom edge of film trap, which is 3~4mm,；
Further, the big stator slot 26 in the stator slot group 2 and small stator slot 25 edge on the inner circle anchor ring of substrate 1
The circumferencial direction of substrate 1 is radial to be evenly arranged 12 × n, i.e., 3 (phase) × 4 (MgO-ZrO_2 brick) × n, wherein n is
The number of poles of motor.
Further, the width of the cramp slot 3 is 14~25mm, is highly 3~5mm, 3 bevel edge of cramp slot and bottom edge it
Between angle be 15 °~25 °.
The threephase asynchronous test data for the big sulculus stator punching that acquisition is 5 using MgO-ZrO_2 brick saves copper
In 0.1~0.25Kg/KW, electric efficiency is all satisfied and is slightly above standard IE2 and IE3 efficiency value.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
It is familiar with those skilled in the art in the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (4)
1. the big sulculus stator punching that a kind of MgO-ZrO_2 brick is 4, it includes the substrate (1) of annulus shape, it is characterised in that:
At least six have been evenly arranged according to circumferencial direction of the motor series on the anchor ring of the substrate (1) along substrate (1) is radial
Group is for placing the stator slot group (2) of copper wire, and MgO-ZrO_2 brick is four in stator slot group (2) described in each group, stator slot group
It (2) include big stator slot (26) and small stator slot (25), the area of small stator slot (25) is the 80% of big stator slot (26) area
~95%, two big stator slot (26) is set to the middle part of stator slot group (2), and the two sides of two big stator slot (26) are respectively symmetrically
It is provided with one small stator slot (25), the area of small stator slot (25) is the 80%~95% of big stator slot (26) area；
The big stator slot (26) or small stator slot (25) include rectangular slot (21), the first isosceles trapezoid slot (22), the
Two isosceles dovetail grooves (23) and semi-circular groove (24), one end close to substrate (1) inner headed face is set as rectangular slot (21), rectangular
The width of shape slot (21) is 2.5~4.2mm, and the height of rectangular slot (21) is 0.9~2.0mm；The second isosceles trapezoid slot
(23) separate center of circle one end of the first isosceles trapezoid slot (22), the upper bottom edge of the first isosceles trapezoid slot (22) and the length are set to
The long side of square groove (21) is conllinear, and the upper bottom edge of the bottom of the first isosceles trapezoid slot (22) and the second isosceles trapezoid slot (23) is total
Line, the width of first isosceles trapezoid slot (22) bottom are 5~10mm, the bevel edge of the first isosceles trapezoid slot (22) and bottom it
Between angle be 20 °~30 °, the width of second isosceles trapezoid slot (23) bottom is 8~15mm, the second isosceles trapezoid slot (23)
Height be 12~40mm；The semi-circular groove (24) is set at the bottom position of the second isosceles trapezoid slot (23), semicircle
The diameter of shape slot (24) is equal with the width of second isosceles trapezoid slot (23) bottom.
2. the big sulculus stator punching that a kind of MgO-ZrO_2 brick according to claim 1 is 4, it is characterised in that: in institute
It states the circumferencial direction on the periphery of substrate (1) along substrate (1) and is evenly arranged 8~16 cramp slots (3) for being used to install cramp,
The bottom of the cramp slot (3) is set as straight line, and the upper bottom edge of cramp slot (3) is naturally open along the circumferencial direction of substrate (1),
The bottom of any one cramp slot (3) is arranged reasonable film trap (4) wherein, the shape of reason film trap (4) be rectangle or
It is trapezoidal.
3. the big sulculus stator punching that a kind of MgO-ZrO_2 brick according to claim 1 is 4, it is characterised in that: described
Big stator slot and small stator slot in stator slot group (2) radiate on the inner circle anchor ring of substrate (1) along the circumferencial direction of substrate (1)
Shape has been evenly arranged 12 × n, and wherein n is the number of poles of motor.
4. the big sulculus stator punching that a kind of MgO-ZrO_2 brick according to claim 1 is 4, it is characterised in that: described
The width of cramp slot (3) is 14~25mm, is highly 3~5mm, angle of the cramp slot (3) between bevel edge and bottom edge be 15 °~
25°。
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910612482.9A CN110289712A (en) | 2019-07-09 | 2019-07-09 | A kind of big sulculus stator punching that MgO-ZrO_2 brick is 4 |
| ES20837493T ES2972860T3 (en) | 2019-07-09 | 2020-06-19 | Stator lamination having unequal size slots for use in three-phase asynchronous motor having unequal turns winding and low harmonics |
| PCT/CN2020/096945 WO2021004250A1 (en) | 2019-07-09 | 2020-06-19 | Ie5 three-phase asynchronous motor based on cast aluminum rotor and stator laminations having slots of unequal size |
| PCT/CN2020/096955 WO2021004251A1 (en) | 2019-07-09 | 2020-06-19 | Stator lamination having slots of unequal size for use in three-phase asynchronous motor having low harmonic wave windings having unequal number of turns |
| EP20837493.4A EP3998694B1 (en) | 2019-07-09 | 2020-06-19 | Stator lamination having slots of unequal size for use in three-phase asynchronous motor having low harmonic wave windings having unequal number of turns |
| EP20837147.6A EP3998697B1 (en) | 2019-07-09 | 2020-06-19 | Ie5 three-phase asynchronous motor based on cast aluminum rotor and stator laminations having slots of unequal size |
| ES20837147T ES2972911T3 (en) | 2019-07-09 | 2020-06-19 | IE5 three-phase asynchronous motor based on a cast aluminum rotor and stator lamination with unequal slots |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910612482.9A CN110289712A (en) | 2019-07-09 | 2019-07-09 | A kind of big sulculus stator punching that MgO-ZrO_2 brick is 4 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110289712A true CN110289712A (en) | 2019-09-27 |
Family
ID=68021980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910612482.9A Pending CN110289712A (en) | 2019-07-09 | 2019-07-09 | A kind of big sulculus stator punching that MgO-ZrO_2 brick is 4 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110289712A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021004251A1 (en) * | 2019-07-09 | 2021-01-14 | 山西电机制造有限公司 | Stator lamination having slots of unequal size for use in three-phase asynchronous motor having low harmonic wave windings having unequal number of turns |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207588570U (en) * | 2017-08-01 | 2018-07-06 | 江天电机有限公司 | A kind of 4 pole ultra high efficiency stator punchings for being applicable in air compressor motor |
| CN207743774U (en) * | 2018-01-11 | 2018-08-17 | 山西电机制造有限公司 | A kind of stator punching |
| CN210092979U (en) * | 2019-07-09 | 2020-02-18 | 山西电机制造有限公司 | Stator punching sheet with large and small slots, wherein each pole and each phase of slots are 4 |
-
2019
- 2019-07-09 CN CN201910612482.9A patent/CN110289712A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207588570U (en) * | 2017-08-01 | 2018-07-06 | 江天电机有限公司 | A kind of 4 pole ultra high efficiency stator punchings for being applicable in air compressor motor |
| CN207743774U (en) * | 2018-01-11 | 2018-08-17 | 山西电机制造有限公司 | A kind of stator punching |
| CN210092979U (en) * | 2019-07-09 | 2020-02-18 | 山西电机制造有限公司 | Stator punching sheet with large and small slots, wherein each pole and each phase of slots are 4 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021004251A1 (en) * | 2019-07-09 | 2021-01-14 | 山西电机制造有限公司 | Stator lamination having slots of unequal size for use in three-phase asynchronous motor having low harmonic wave windings having unequal number of turns |
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