CN114301201A - Rotor punching structure of asymmetric salient-pole generator - Google Patents
Rotor punching structure of asymmetric salient-pole generator Download PDFInfo
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- CN114301201A CN114301201A CN202111630316.5A CN202111630316A CN114301201A CN 114301201 A CN114301201 A CN 114301201A CN 202111630316 A CN202111630316 A CN 202111630316A CN 114301201 A CN114301201 A CN 114301201A
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Abstract
The invention relates to an asymmetric salient-pole generator rotor punching structure which comprises a circular rotor punching body, a shaft hole, a key groove, a fan-shaped gap and a T-shaped sheet, wherein the shaft hole is formed in the rotor punching body; the T-shaped piece comprises T-shaped piece connecting sections and T-shaped piece working sections, the width of each T-shaped piece working section is larger than that of each T-shaped piece connecting section, at least two series rod mounting holes are formed in each T-shaped piece connecting section, the series rod mounting holes are symmetrically arranged in a left-right mode by taking the radial center line of each T-shaped piece connecting section as a symmetrical line, damping strip mounting holes are formed in the T-shaped piece working sections, and steering arm mounting holes are formed in the T-shaped piece working sections on the inner sides of the corresponding damping strip mounting holes; the length of the forward rotating end of the T-shaped sheet working section is smaller than that of the backward rotating end of the T-shaped sheet working section. The invention eliminates the harmonic wave of the generator by the asymmetrical structure of the rotor punching sheet; the chute for the stator or the rotor is avoided, the manufacturing difficulty is reduced, and the working efficiency is improved.
Description
Technical Field
The invention relates to a punching sheet structure of a salient-pole generator, in particular to an asymmetric rotor punching sheet structure of the salient-pole generator.
Background
In order to weaken the harmonic wave of the generator, a chute is usually required to be arranged; the chute has two modes: stator chute and rotor chute.
In the prior art, the stator chute needs to incline the stator coil at the same time, which causes inconvenience in operation and reduces the work efficiency per unit time. The same problem is also encountered with rotor chutes.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the asymmetric salient-pole generator rotor punching sheet structure which is simple in structure, can weaken harmonic waves and does not need to arrange skewed slots in stator and rotor sheets.
According to the technical scheme provided by the invention, the asymmetric salient-pole generator rotor punching structure comprises a circular rotor punching body, wherein a shaft hole is formed in the center of the rotor punching body, a key groove is formed in the hole wall of the shaft hole, fan-shaped notches are uniformly distributed in the outer circle of the rotor punching body, and a T-shaped sheet is arranged between every two adjacent fan-shaped notches;
the T-shaped piece comprises a T-shaped piece connecting section and a T-shaped piece working section connected to the outer end of the T-shaped piece connecting section, the T-shaped piece connecting section is rectangular, the T-shaped piece working section is arched, the width of the T-shaped piece working section is larger than that of the T-shaped piece connecting section, the end part of the T-shaped piece working section extending out of the T-shaped piece connecting section is a forward rotating end in a forward rotating direction, the end part of the T-shaped piece working section extending out of the T-shaped piece connecting section is a reverse rotating end in a reverse rotating direction, at least two series rod mounting holes are formed in each T-shaped piece connecting section, the series rod mounting holes are arranged in a left-right symmetrical mode by taking the radial central line of the T-shaped piece connecting section as a symmetrical line, damping strip mounting holes are formed in the T-shaped piece working section, and steering arm mounting holes are formed in the T-shaped piece working section corresponding to the inner sides of the damping strip mounting holes;
the length of the forward rotating end of the T-shaped sheet working section is smaller than that of the backward rotating end of the T-shaped sheet working section.
Preferably, the ratio of the length of the positive rotation end of the T-shaped working section to the outer diameter of the rotor punching sheet body is (0.09-0.11):1, and the ratio of the length of the negative rotation end of the T-shaped working section to the outer diameter of the rotor punching sheet body is (0.11-0.13): 1.
Preferably, the number of the series rod mounting holes formed in each T-shaped piece connecting section is 2.
Preferably, the number of the damping strip mounting holes formed in each T-shaped piece working section is 5-12.
Preferably, the number of the steering arm mounting holes formed in each T-shaped sheet working section is 1-3, and the steering arm mounting holes are symmetrically arranged in a left-right mode by taking the radial center line of the T-shaped sheet connecting section as a symmetry line.
Preferably, the diameter of the steering arm mounting hole is larger than the diameter of the tandem rod mounting hole.
The invention eliminates the harmonic wave of the generator by the asymmetrical structure of the rotor punching sheet; the chute for the stator or the rotor is avoided, the manufacturing difficulty is reduced, and the working efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific examples.
The invention discloses an asymmetric salient-pole generator rotor punching structure, which comprises a circular rotor punching body, wherein the center of the rotor punching body is provided with a shaft hole 1.1, the wall of the shaft hole 1.1 is provided with a key groove 1.2, the excircle of the rotor punching body is provided with evenly distributed fan-shaped notches 1.3, and a T-shaped sheet 1.4 is arranged between every two adjacent fan-shaped notches 1.3;
the T-shaped sheet 1.4 comprises a T-shaped sheet connecting section 1.41 and a T-shaped sheet working section 1.42 connected to the outer end of the T-shaped sheet connecting section 1.41, the T-shaped sheet connecting section 1.41 is rectangular, the T-shaped sheet working section 1.42 is arched, the width H1 of the T-shaped sheet working section 1.42 is greater than the width H2 of the T-shaped sheet connecting section 1.41, in the positive rotation direction, the end part of the T-shaped sheet working section 1.42 of the extended T-shaped sheet connecting section 1.41 is a positive rotation end, in the reverse rotation direction, the end part of the T-shaped sheet working section 1.42 of the extended T-shaped sheet connecting section 1.41 is a reverse rotation end, each T-shaped sheet connecting section 1.41 is provided with at least two series rod mounting holes 1.43, the series rod mounting holes 1.43 are arranged in a left-right symmetry manner by taking the radial central line of the T-shaped sheet connecting section 1.41 as a symmetry line, a damping strip mounting hole 1.44 is formed in the T-shaped piece working section 1.42, and a steering arm mounting hole 1.45 is formed in the T-shaped piece working section 1.42 corresponding to the inner side of the damping strip mounting hole 1.44;
the length L1 of the forward rotating end of the T-shaped piece working section 1.42 is less than the length L2 of the reverse rotating end of the T-shaped piece working section 1.42.
The ratio of the length L1 of the positive rotation end of the T-shaped sheet working section 1.42 to the outer diameter of the rotor punching sheet body is (0.09-0.11):1, and the ratio of the length L2 of the negative rotation end of the T-shaped sheet working section 1.42 to the outer diameter of the rotor punching sheet body is (0.11-0.13): 1.
The number of the series rod mounting holes 1.43 formed in each T-shaped piece connecting section 1.41 is 2.
The number of the damping strip mounting holes 1.44 formed in each T-shaped piece working section 1.42 is 5-12.
The number of the steering arm mounting holes 1.45 formed in each T-shaped piece working section 1.42 is 1-3, and the steering arm mounting holes 1.45 are symmetrically arranged in a left-right mode by taking the radial center line of the T-shaped piece connecting section 1.41 as a symmetrical line.
The diameter of the steering arm mounting hole 1.45 is larger than that of the tandem rod mounting hole 1.43.
In the invention, the length L1 of the forward rotation end of each T-shaped sheet working section 1.42 is smaller than the length L2 of the reverse rotation end of each T-shaped sheet working section 1.42, so that an asymmetric structure is formed, and harmonic waves can be effectively weakened.
In the invention, the serial rod mounting hole 1.43 is used for mounting the serial rod, and when the serial rod is assembled, the rotor punching sheets of one sheet are connected through the serial rod; the damping strip mounting hole 1.44 is used for mounting a damping strip; the steering arm mounting hole 1.45 is used for mounting a steering arm, and the steering arm can prevent a copper wire at the end part from deforming under the influence of centrifugal force in the rotating process of the generator.
If the number of the steering arm mounting holes 1.45 formed in each T-shaped piece working section 1.42 is 1, the circle center of the steering arm mounting hole 1.45 is arranged on the radial central line extension line of the T-shaped piece connecting section 1.41, as shown in FIG. 1. If the number of the steering arm mounting holes 1.45 formed in each T-shaped piece working section 1.42 is 2, the steering arm mounting holes 1.45 are symmetrically arranged in a left-right mode by taking the radial center line of the T-shaped piece connecting section 1.41 as a symmetrical line. If the number of the steering arm mounting holes 1.45 formed in each T-shaped piece working section 1.42 is 3, the circle center of one steering arm mounting hole 1.45 is arranged on the radial central line extension line of the T-shaped piece connecting section 1.41, and the steering arm mounting holes 1.45 are arranged in a left-right symmetrical mode by taking the radial central line of the T-shaped piece connecting section 1.41 as a symmetrical line.
Claims (6)
1. A rotor punching structure of an asymmetric salient-pole generator comprises a round rotor punching body, wherein a shaft hole (1.1) is formed in the center of the rotor punching body, a key groove (1.2) is formed in the wall of the shaft hole (1.1), fan-shaped notches (1.3) are uniformly distributed in the outer circle of the rotor punching body, and a T-shaped piece (1.4) is arranged between every two adjacent fan-shaped notches (1.3);
the T-shaped sheet (1.4) comprises a T-shaped sheet connecting section (1.41) and a T-shaped sheet working section (1.42) connected to the outer end of the T-shaped sheet connecting section (1.41), the T-shaped sheet connecting section (1.41) is rectangular, the T-shaped sheet working section (1.42) is arched, the width of the T-shaped sheet working section (1.42) is larger than that of the T-shaped sheet connecting section (1.41), the end part of the T-shaped sheet working section (1.42) extending out of the T-shaped sheet connecting section (1.41) is a forward rotating end in the forward rotating direction, the end part of the T-shaped sheet working section (1.42) extending out of the T-shaped sheet connecting section (1.41) is a reverse rotating end in the reverse rotating direction, at least two series rod mounting holes (1.43) are formed in each T-shaped sheet connecting section (1.41), the series rod mounting holes (1.43) are symmetrically formed in the way that the radial central line of the T-shaped sheet connecting section (1.41) is a left-right symmetrical working section, and a damping strip (44) is symmetrically formed in the T-shaped sheet connecting section (1.41), a steering arm mounting hole (1.45) is formed in the T-shaped piece working section (1.42) corresponding to the inner side of the damping strip mounting hole (1.44);
the method is characterized in that: the length of the forward rotating end of the T-shaped sheet working section (1.42) is smaller than that of the backward rotating end of the T-shaped sheet working section (1.42).
2. The asymmetric salient pole generator rotor punching structure as claimed in claim 1, is characterized in that: the ratio of the length of the positive rotation end of the T-shaped sheet working section (1.42) to the outer diameter of the rotor punching sheet body is (0.09-0.11):1, and the ratio of the length of the negative rotation end of the T-shaped sheet working section (1.42) to the outer diameter of the rotor punching sheet body is (0.11-0.13): 1.
3. The asymmetric salient pole generator rotor punching structure as claimed in claim 1, is characterized in that: the number of the serial rod mounting holes (1.43) formed in each T-shaped sheet connecting section (1.41) is 2.
4. The asymmetric salient pole generator rotor punching structure as claimed in claim 1, is characterized in that: the number of the damping strip mounting holes (1.44) formed in each T-shaped piece working section (1.42) is 5-12.
5. The asymmetric salient pole generator rotor punching structure as claimed in claim 1, is characterized in that: the number of the steering arm mounting holes (1.45) formed in each T-shaped sheet working section (1.42) is 1-3, and the steering arm mounting holes (1.45) are arranged in a bilateral symmetry mode by taking the radial center line of the T-shaped sheet connecting section (1.41) as a symmetry line.
6. The asymmetric salient pole generator rotor punching structure as claimed in claim 1, is characterized in that: the diameter of the steering arm mounting hole (1.45) is larger than that of the tandem rod mounting hole (1.43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111630316.5A CN114301201A (en) | 2021-12-28 | 2021-12-28 | Rotor punching structure of asymmetric salient-pole generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111630316.5A CN114301201A (en) | 2021-12-28 | 2021-12-28 | Rotor punching structure of asymmetric salient-pole generator |
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| Publication Number | Publication Date |
|---|---|
| CN114301201A true CN114301201A (en) | 2022-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111630316.5A Pending CN114301201A (en) | 2021-12-28 | 2021-12-28 | Rotor punching structure of asymmetric salient-pole generator |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0549241A2 (en) * | 1991-12-24 | 1993-06-30 | General Electric Company | Electrical machines |
| CN101741157A (en) * | 2008-11-21 | 2010-06-16 | 德昌电机(深圳)有限公司 | motor and rotor thereof |
| CN202931054U (en) * | 2012-11-26 | 2013-05-08 | 南昌康富电机技术有限公司 | Generator eight-pole rotor punching sheet |
| CN103812244A (en) * | 2012-11-01 | 2014-05-21 | Lg电子株式会社 | Rotor and motor and/or electric vehicle driving apparatus including the same |
| CN204290661U (en) * | 2014-12-16 | 2015-04-22 | 重庆吉力芸峰实业(集团)有限公司 | The punching of Mini-type synchronous generator stator-rotor iron core |
| EP3011662A2 (en) * | 2013-06-21 | 2016-04-27 | Cummins Generator Technologies Limited | Rotor for a rotating electrical machine |
| CN213661289U (en) * | 2020-10-27 | 2021-07-09 | 深圳华引动力科技有限公司 | Induction type rotor and switched reluctance motor |
| CN213959842U (en) * | 2020-11-20 | 2021-08-13 | 深圳华引动力科技有限公司 | Switched reluctance motor with asymmetric salient poles and rotor core thereof |
| CN113422448A (en) * | 2021-07-09 | 2021-09-21 | 安徽德科电气科技有限公司 | 4500-supple high-power brushless synchronous generator who moves with an elevation of 5000 meters |
-
2021
- 2021-12-28 CN CN202111630316.5A patent/CN114301201A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0549241A2 (en) * | 1991-12-24 | 1993-06-30 | General Electric Company | Electrical machines |
| CN101741157A (en) * | 2008-11-21 | 2010-06-16 | 德昌电机(深圳)有限公司 | motor and rotor thereof |
| CN103812244A (en) * | 2012-11-01 | 2014-05-21 | Lg电子株式会社 | Rotor and motor and/or electric vehicle driving apparatus including the same |
| CN202931054U (en) * | 2012-11-26 | 2013-05-08 | 南昌康富电机技术有限公司 | Generator eight-pole rotor punching sheet |
| EP3011662A2 (en) * | 2013-06-21 | 2016-04-27 | Cummins Generator Technologies Limited | Rotor for a rotating electrical machine |
| CN204290661U (en) * | 2014-12-16 | 2015-04-22 | 重庆吉力芸峰实业(集团)有限公司 | The punching of Mini-type synchronous generator stator-rotor iron core |
| CN213661289U (en) * | 2020-10-27 | 2021-07-09 | 深圳华引动力科技有限公司 | Induction type rotor and switched reluctance motor |
| CN213959842U (en) * | 2020-11-20 | 2021-08-13 | 深圳华引动力科技有限公司 | Switched reluctance motor with asymmetric salient poles and rotor core thereof |
| CN113422448A (en) * | 2021-07-09 | 2021-09-21 | 安徽德科电气科技有限公司 | 4500-supple high-power brushless synchronous generator who moves with an elevation of 5000 meters |
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