CN109713838B - Switched reluctance motor - Google Patents
Switched reluctance motor Download PDFInfo
- Publication number
- CN109713838B CN109713838B CN201910197317.1A CN201910197317A CN109713838B CN 109713838 B CN109713838 B CN 109713838B CN 201910197317 A CN201910197317 A CN 201910197317A CN 109713838 B CN109713838 B CN 109713838B
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- China
- Prior art keywords
- rotor
- balance block
- dynamic balance
- iron core
- rotor core
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- 210000000078 claw Anatomy 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 10
- 210000001503 joint Anatomy 0.000 claims abstract description 5
- 229910001369 Brass Inorganic materials 0.000 claims description 7
- 239000010951 brass Substances 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 3
- 230000004323 axial length Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 20
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000006872 improvement Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Abstract
The invention relates to a switch reluctance motor, which is provided with a rotor, wherein the rotor comprises a rotating shaft, a rotor iron core and a dynamic balance block, a plurality of concave-convex rotor grooves and rotor teeth are formed on the side surface of the rotor iron core, the dynamic balance block comprises a body, a back and a plurality of clamping claws which are integrally structured, the clamping claws are positioned on the end surface of the balance block body, which is in butt joint with the rotor iron core, the number and the positions of the clamping claws are respectively corresponding to the number and the positions of rotor grooves formed by the rotor iron core, and the rotor iron core side and the dynamic balance block are connected through interference fit of the clamping claws and the rotor grooves; the back is positioned on the back of the dynamic balance block opposite to the claw, and the back is provided with at least eight reinforcing ribs which are uniformly distributed in a circumference manner by taking the rotating shaft as the center. The invention can effectively reduce the axial distance of the rotor, shorten the effective length of the motor and improve the production efficiency and the operation efficiency of the motor.
Description
Technical Field
The invention belongs to the field of low-power motors, and particularly relates to a rotor design of a switched reluctance motor.
Background
The switch reluctance motor rotor comprises a rotating shaft, a rotor iron core and a dynamic balance block, and the switch reluctance motor rotor iron core is a silicon steel sheet. For rotors operating at high speeds, the imbalance has a very large impact on motor noise and life. Because the dynamic balance of the end face of the silicon steel sheet cannot be realized, a dynamic balance auxiliary device is required to be specially designed to realize the dynamic balance requirement of the whole rotor, the existing dynamic balance weight is generally an iron ring, the method for removing the weight is to drill holes on the ring, and the azimuth, the size and the depth of the drill holes depend on the working experience of workers; meanwhile, the existing iron ring is thick for the current balance requirement, so that the length of motor manufacturing is affected, and the production of a high-precision motor cannot be met.
Disclosure of Invention
In order to overcome the defects, the invention aims to provide a switched reluctance motor, which effectively reduces the axial distance of a rotor, shortens the effective length of the motor and improves the production efficiency and the operation efficiency of the motor through the design of a dynamic balance block.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the switch reluctance motor is provided with a rotor, the rotor comprises a rotating shaft, a rotor iron core and a dynamic balance block provided with two ends of the rotor iron core, a plurality of concave-convex rotor grooves and rotor teeth are formed on the side face of the rotor iron core, the dynamic balance block comprises a body, a back and a plurality of clamping jaws which are integrally structured, the clamping jaws are positioned on the end face of the balance block body, which is in butt joint with the rotor iron core, the number and the position of the clamping jaws are respectively corresponding to the number and the position of rotor grooves formed by the rotor iron core, and the rotor iron core side and the dynamic balance block are connected through interference fit of the clamping jaws and the rotor grooves; the back is positioned on the back of the dynamic balance block opposite to the claw, and the back is provided with at least eight reinforcing ribs which are uniformly distributed in a circumference manner by taking the rotating shaft as the center.
As a further improvement of the invention: the dynamic balance block is made of brass materials. Since the density of brass is higher than that of common metal, the thickness of the balance weight can be reduced; moreover, for the de-duplication process, brass is easier to realize, and the production efficiency of brass is higher, so that the manufacturing cost is reduced. On the other hand, the high density of brass leads to relatively large moment of inertia of the rotor, and has an effect of promoting quick response of the motor.
As a further improvement of the invention: the axial width of the clamping claw is 15-20% of the axial length of the rotor core, and the connection between the clamping claw and the rotor groove of the rotor core is reinforced, and meanwhile the interference and influence on the rotor core are reduced.
As a further improvement of the invention: glue is coated on the connecting end surface of the claw and the rotor groove, so that the balance weight is prevented from falling off in the high-speed rotation process of the motor.
As a further improvement of the invention: the reinforcing rib is provided with a plurality of weight-reducing sections through processing the sectional grooves, so that weight removal is convenient and standard.
According to the invention, through the cooperation of the clamping jaw and the rotor groove of the motor rotor core, the problem that the balance weight falls off in the high-speed rotation process of the motor is avoided. Meanwhile, the clamping jaw extends towards the iron core, the weight of the balance weight is increased, and the thickness of the balance weight body can be effectively reduced, so that the axial distance of the rotor is reduced, and the effective length of the motor is shortened. The balance blocks at the other two ends can simultaneously play a role in tightly connecting the rotor punching sheets, so that the axial sheet scattering defect is prevented.
Through detection, the invention can effectively improve the lamination coefficient of the iron core by about 3 percent and improve the operation efficiency of the motor by about 2 to 5 percent. Meanwhile, the production efficiency of the motor can be improved.
Drawings
FIG. 1 is a schematic view of a rotor structure according to the present invention;
fig. 2 is a rear elevation view of the dynamic balance weight of the present invention.
In the figure, 1 is a rotating shaft; 2 is a dynamic balance block; 21 is a body; 22 is a claw; 23 is a reinforcing rib; 231 is a segmented slot; 3 is a rotor core; 31 is a rotor groove; 32 are rotor teeth.
Detailed Description
In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below with reference to fig. 1 and 2.
Examples
The embodiment relates to a low-power switched reluctance motor, comprising a stator and a rotor. As shown in fig. 1: the rotor comprises a rotating shaft 1, a rotor iron core 3 and dynamic balance blocks 2 arranged at two ends of the rotor iron core; wherein the length of the rotor core 3 is 28mm, and the diameter of the rotating shaft 1 is 9mm. Four concave-convex rotor grooves 31 and rotor teeth 32 are formed on the side surface of the rotor core.
As shown in fig. 1: the dynamic balance weight 2 comprises a body 21, a ridge and four claws 22 which are integrally structured, and the four claws 22 are positioned on the end face of the balance weight body 21, which is in butt joint with the rotor core 3. During connection, glue is coated on the butt joint surfaces of the four clamping claws 22 and the four rotor grooves 31 respectively, and then the fixed connection of the rotor core 3 and the dynamic balance weight 2 is realized through interference fit of the two. As shown in fig. 2: the back is designed on the back of the dynamic balance block body 21, namely the end surface opposite to the clamping jaw 22, and is composed of eight reinforcing ribs 23, and the eight reinforcing ribs 23 are uniformly distributed around the rotating shaft 1.
In this embodiment, the entire dynamic balance weight 2 is made of brass, in which the axial width of the claw 22 is 5mm.
As shown in fig. 2, each reinforcing rib 23 has a certain thickness and a certain width, the reinforcing ribs 23 are equally divided and processed into a segmented groove 231, a plurality of weight-reducing segments with consistent gram weights are formed, the gram weights of the weight-reducing segments are calculated according to design requirements, and when the weight is removed, the corresponding weight-reducing segments are clamped and removed according to the detected azimuth and the weight reduction, so that the production efficiency is improved.
Through detection, the embodiment can effectively improve the lamination coefficient of the iron core by 3 percent and improve the operation efficiency of the motor by about 2.8 percent.
The foregoing has outlined and described the basic principles, features, and advantages of the present invention. However, the foregoing is merely an example of the present invention, and the technical features of the present invention are not limited thereto, so that any other embodiments that are derived by those skilled in the art without departing from the technical solution of the present invention shall be covered in the patent scope of the present invention.
Claims (3)
1. A switch reluctance motor is provided with a rotor, which is characterized in that: the rotor comprises a rotating shaft, a rotor core and a dynamic balance block arranged at two ends of the rotor core, wherein a plurality of concave-convex rotor grooves and rotor teeth are formed on the side face of the rotor core, the dynamic balance block comprises a body, a back and a plurality of clamping jaws which are integrally structured, the clamping jaws are positioned on the end face where the balance block body is in butt joint with the rotor core, the number and the positions of the clamping jaws respectively correspond to the number and the positions of the rotor grooves formed by the rotor core, and the rotor core side and the dynamic balance block are connected through interference fit of the clamping jaws and the rotor grooves; the back is positioned on the back of the dynamic balance block opposite to the claw, and is provided with at least eight reinforcing ribs which are uniformly distributed in a circumference manner with the rotating shaft as the center; the axial width of the clamping claw is 15-20% of the axial length of the rotor core; glue is coated on the connecting end surfaces of the clamping jaws and the rotor groove.
2. The switched reluctance motor of claim 1, wherein: the dynamic balance block is made of brass materials.
3. The switched reluctance motor of claim 1, wherein: the reinforcing rib is provided with a plurality of weight-reducing sections through processing the sectional grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910197317.1A CN109713838B (en) | 2019-03-15 | 2019-03-15 | Switched reluctance motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910197317.1A CN109713838B (en) | 2019-03-15 | 2019-03-15 | Switched reluctance motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109713838A CN109713838A (en) | 2019-05-03 |
| CN109713838B true CN109713838B (en) | 2024-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910197317.1A Active CN109713838B (en) | 2019-03-15 | 2019-03-15 | Switched reluctance motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109713838B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112713741A (en) * | 2020-12-21 | 2021-04-27 | 中车永济电机有限公司 | Self-starting three-phase synchronous reluctance motor |
| CN112688449B (en) * | 2020-12-22 | 2021-11-23 | 珠海格力电器股份有限公司 | Motor rotor, dynamic balance adjusting method thereof and motor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201393092Y (en) * | 2009-04-14 | 2010-01-27 | 无锡市亨达电机有限公司 | Stator-rotor structure of switched reluctance motor |
| CN103138438A (en) * | 2011-11-29 | 2013-06-05 | 三星电机株式会社 | Switched reluctance motor |
| CN203180674U (en) * | 2013-03-28 | 2013-09-04 | 新动力电机（荆州）有限公司 | Permanent-magnet synchronous motor rotor beneficial to dynamic balance of rotor |
| CN103986255A (en) * | 2013-02-07 | 2014-08-13 | 艾默生环境优化技术(苏州)有限公司 | Switched reluctance motor and rotor thereof |
| CN204258479U (en) * | 2014-11-14 | 2015-04-08 | 浙江中自机电控制技术有限公司 | A kind of interstitital texture of switch reluctance machine rotor |
| CN105356630A (en) * | 2015-12-11 | 2016-02-24 | 上海品星防爆电机有限公司 | Switch reluctance motor |
| CN108696019A (en) * | 2017-04-07 | 2018-10-23 | 卡特彼勒公司 | The end plate of rotor for switched reluctance motor |
| CN208174505U (en) * | 2018-03-19 | 2018-11-30 | 广东新高电驱动系统技术有限公司 | A kind of controllable permanent magnetic synchronous motor of counnter attack operation |
| CN109149810A (en) * | 2017-06-18 | 2019-01-04 | 南京理工大学 | A kind of axial magnetic flux disk type switch magnetoresistance electrical machinery with rotor chute structure |
| CN209358368U (en) * | 2019-03-15 | 2019-09-06 | 常州富兴机电有限公司 | Switched reluctance machines |
-
2019
- 2019-03-15 CN CN201910197317.1A patent/CN109713838B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201393092Y (en) * | 2009-04-14 | 2010-01-27 | 无锡市亨达电机有限公司 | Stator-rotor structure of switched reluctance motor |
| CN103138438A (en) * | 2011-11-29 | 2013-06-05 | 三星电机株式会社 | Switched reluctance motor |
| CN103986255A (en) * | 2013-02-07 | 2014-08-13 | 艾默生环境优化技术(苏州)有限公司 | Switched reluctance motor and rotor thereof |
| CN203180674U (en) * | 2013-03-28 | 2013-09-04 | 新动力电机（荆州）有限公司 | Permanent-magnet synchronous motor rotor beneficial to dynamic balance of rotor |
| CN204258479U (en) * | 2014-11-14 | 2015-04-08 | 浙江中自机电控制技术有限公司 | A kind of interstitital texture of switch reluctance machine rotor |
| CN105356630A (en) * | 2015-12-11 | 2016-02-24 | 上海品星防爆电机有限公司 | Switch reluctance motor |
| CN108696019A (en) * | 2017-04-07 | 2018-10-23 | 卡特彼勒公司 | The end plate of rotor for switched reluctance motor |
| CN109149810A (en) * | 2017-06-18 | 2019-01-04 | 南京理工大学 | A kind of axial magnetic flux disk type switch magnetoresistance electrical machinery with rotor chute structure |
| CN208174505U (en) * | 2018-03-19 | 2018-11-30 | 广东新高电驱动系统技术有限公司 | A kind of controllable permanent magnetic synchronous motor of counnter attack operation |
| CN209358368U (en) * | 2019-03-15 | 2019-09-06 | 常州富兴机电有限公司 | Switched reluctance machines |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109713838A (en) | 2019-05-03 |
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