CN211790972U - Stator punching sheet - Google Patents
Stator punching sheet Download PDFInfo
- Publication number
- CN211790972U CN211790972U CN201922031239.6U CN201922031239U CN211790972U CN 211790972 U CN211790972 U CN 211790972U CN 201922031239 U CN201922031239 U CN 201922031239U CN 211790972 U CN211790972 U CN 211790972U
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- stator punching
- punching sheet
- sheet body
- straight line
- stator
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Abstract
The utility model discloses a stator punching sheet, include: the stator punching sheet comprises a stator punching sheet body and a winding slot; the outer contour of the stator punching sheet body is formed by connecting four straight line sections and adjacent transitional concentric circular arc sections, the four straight line sections are divided into two groups in a pairwise parallel mode, and the two groups are perpendicular to each other; the central circular hole of the inner contour of the stator punching sheet body is uniformly distributed with 30 winding slots along the circumference, two empty slots are respectively drawn out at two corresponding sides of the position of one group of straight line segments, and the rest are wire slots. Adopt the utility model discloses a motor core that stator punching was made is though the material slightly increases, but the generator unit efficiency of making has obvious improvement, and the motor temperature rise descends to some extent.
Description
Technical Field
The utility model belongs to the technical field of the motor manufacturing technology and specifically relates to a stator punching sheet is related to.
Background
The winding wire groove quantity that power commonly used at present is greater than 6KW generator stator punching generally adopts is thirty six to use the center of stator as centre of a circle evenly distributed on the stator, its shortcoming lies in: the number of winding slots is large, the size collocation of each part of the stator punching sheet is not reasonable, the size reduction in the prior art is only used for ensuring the conventional working performance of the generator in order to achieve the purpose of reducing the cost, the performance of the generator cannot be improved in the aspects of the unit power of the generator, the motor temperature rise control and the like, and the large-batch high-quality production of a factory is not facilitated.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome the deficiency of the background art, the utility model discloses a stator punching sheet, thereby improve the working property of generator through the rational design to each position size of stator punching sheet.
The technical scheme is as follows: the utility model discloses a stator punching sheet, include: the stator punching sheet comprises a stator punching sheet body and a winding slot; the outer contour of the stator punching sheet body is formed by connecting four straight line sections and adjacent transitional concentric circular arc sections, the four straight line sections are divided into two groups in a pairwise parallel mode, and the two groups are perpendicular to each other; the central circular hole of the inner contour of the stator punching sheet body is uniformly distributed with 30 winding slots along the circumference, two empty slots are respectively drawn out at two corresponding sides of the position of one group of straight line segments, and the rest are wire slots.
The magnetic density of a yoke part at the position of the straight-line stator punching sheet body can be reduced, so that the exciting current of the rotor is reduced.
Further, the four straight line segments are consistent in length.
Furthermore, two mounting holes are formed in the stator punching sheet body, the mounting holes are symmetrical about the center, and the included angle between the connecting line of the two mounting holes and the center line between the same-side empty grooves is 72 degrees.
Furthermore, the outer diameter phi D of the stator punching sheet body is 203.95-204.05 mm, the inner diameter phi D is 124.95-125.05 mm, and the distance L1 of any group of straight line segments is 196.95-197.05 mm.
Further, the size K of a yoke part of a circular arc section of a wire slot of the stator punching sheet body is 27.75-27.85 mm, and the width H of the notch is 3.15-3.25 mm.
Has the advantages that: compared with the prior art, the utility model has the advantages that: adopt the utility model discloses a motor core that stator punching was made is though the material slightly increases, but the generator unit efficiency of making has obvious improvement, and the motor temperature rise descends to some extent.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
The stator punching sheet shown in fig. 1 includes: the stator punching sheet comprises a stator punching sheet body 1 and a winding slot 2; the outer contour of the stator punching sheet body 1 is formed by connecting four straight line sections and adjacent transitional concentric circular arc sections, the four straight line sections are divided into two groups in a pairwise parallel mode, the two groups are perpendicular to each other, and the four straight line sections are consistent in length; the central circular hole of the inner contour of the stator punching body 1 is uniformly distributed with 30 winding slots 2 along the circumference, two empty slots 201 are respectively drawn out at two corresponding sides of the position of one group of straight line segments, and the rest are wire slots 202, so that two rows of uniformly distributed wire slots 202 are formed, each row is 13, two empty slots 201 are arranged between the wire slots 202 at the end part, the yoke part magnetic density at the position of the straight line stator punching body is reduced, and the exciting current of a rotor is reduced.
Two mounting holes 3 are formed in the stator punching sheet body 1, the mounting holes 3 are symmetrical about the center, and an included angle between a connecting line of the two mounting holes 3 and a center line between the same-side empty grooves 201 is 72 degrees.
The stator punching sheet body 1 is 203.95-204.05 mm in outer diameter phi D, 124.95-125.05 mm in inner diameter phi D, and the distance L1 of any group of straight line segments is 196.95-197.05 mm.
The size K of a yoke part of a circular arc section of a wire slot 202 of the stator punching sheet body 1 is 27.75-27.85 mm, and the width H of a notch is 3.15-3.25 mm.
In actual production and work, compare with the motor of the same type, adopt the utility model discloses a motor core material cost that stator punching made increases 2Kg, and unit power improves 7.8KW by 7.2KW, and motor efficiency has improved 6%, and the whole unit power of same state has improved about 600W, and the motor temperature rise has fallen about 15K. And the possibility is provided for changing copper wires into aluminum wires and further greatly reducing the cost.
Claims (3)
1. A stator punching sheet is characterized by comprising: the stator punching sheet comprises a stator punching sheet body (1) and a winding groove (2); the outer contour of the stator punching sheet body (1) is formed by connecting four straight line sections and adjacent transitional concentric circular arc sections, wherein the four straight line sections are divided into two groups in parallel every two, and the two groups are mutually perpendicular; 30 winding slots (2) are uniformly distributed in a central circular hole of the inner outline of the stator punching sheet body (1) along the circumference, two empty slots (201) are respectively drawn at two corresponding sides of one group of straight line sections, and the rest are wire slots (202);
the stator punching sheet body (1) is 203.95-204.05 mm in outer diameter phi D, 124.95-125.05 mm in inner diameter phi D, and the distance L1 of any group of straight line sections is 196.95-197.05 mm;
the size K of a yoke part of a circular arc section of a wire slot (202) of the stator punching sheet body (1) is 27.75-27.85 mm, and the width H of a notch is 3.15-3.25 mm.
2. The stator lamination of claim 1, wherein: the four straight line segments are consistent in length.
3. The stator lamination of claim 1, wherein: two mounting holes (3) are formed in the stator punching sheet body (1), the mounting holes (3) are symmetrical about the center, and the included angle between the connecting line of the two mounting holes (3) and the center line between the connecting line and the empty grooves (201) on the same side is 72 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922031239.6U CN211790972U (en) | 2019-11-22 | 2019-11-22 | Stator punching sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922031239.6U CN211790972U (en) | 2019-11-22 | 2019-11-22 | Stator punching sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211790972U true CN211790972U (en) | 2020-10-27 |
Family
ID=72960646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922031239.6U Active CN211790972U (en) | 2019-11-22 | 2019-11-22 | Stator punching sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211790972U (en) |
-
2019
- 2019-11-22 CN CN201922031239.6U patent/CN211790972U/en active Active
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