CN210468912U - Permanent magnet machine stator magnetic circuit - Google Patents
Permanent magnet machine stator magnetic circuit Download PDFInfo
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- CN210468912U CN210468912U CN201921272154.0U CN201921272154U CN210468912U CN 210468912 U CN210468912 U CN 210468912U CN 201921272154 U CN201921272154 U CN 201921272154U CN 210468912 U CN210468912 U CN 210468912U
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- slot wedge
- permanent magnet
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Abstract
The utility model discloses a permanent-magnet machine stator magnetic circuit, including stator core and set up upper winding and the lower floor's winding in the stator slot that stator core inboard was seted up, the opening part joint of stator slot has the magnetic channel wedge of leading, it is the worker shape piece to lead the magnetic channel wedge, the end weld of leading the magnetic channel wedge is fixed with the spacing ring, the spacing ring passes through fixed rubber circle and the constant head tank joint that sets up on the lateral wall, and the constant head tank sets up the terminal surface in stator core. This stator magnetic circuit adopts the magnetic conduction slot wedge of worker's shape design, and loading and unloading are convenient, have avoided the inboard punching press mounting groove in the stator slot to avoid the condition of stator slot deformation, thereby guarantee the stability of magnetic conduction slot wedge installation.
Description
Technical Field
The invention belongs to the technical field of generator equipment, and particularly relates to a stator magnetic circuit of a permanent magnet machine.
Background
The stator magnetic circuit in the permanent magnet generator is composed of a stator core, a winding, an insulation assembly and a slot wedge. The development and the use of the permanent magnet generator are in an early stage, and electromagnetic calculation and magnetic circuit design are not mature. Permanent magnets are both the source of magnetism and a component of the magnetic circuit in a generator. The magnetic performance of the permanent magnet is not only related to the manufacturing process of a manufacturing factory, but also related to the shape and size of the permanent magnet, the capacity of a magnetizer and a magnetizing method, and the discreteness of specific performance data is large. And the magnetic flux and magnetomotive force that the permanent magnets can provide in the machine also vary with the material properties, dimensions and machine operating conditions of the rest of the magnetic circuit.
The mounting groove needs to be formed in the stator groove for mounting the slot wedge in the stator magnetic circuit of the permanent magnet machine in use at present, so that the slot wedge is conveniently inserted, but the processing difficulty is high, the problem that the stability of mounting the slot wedge is insufficient due to the fact that the inner part of the stator groove is deformed easily is solved, and the problem needs to be updated and designed.
Disclosure of Invention
The invention aims to provide a stator magnetic circuit of a permanent magnet machine, which is put into use to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a permanent-magnet machine stator magnetic circuit, includes stator core and sets up upper winding and the lower floor's winding in the stator slot that stator core inboard was seted up, the opening part joint of stator slot has leads the magnetic slot wedge, it is worker shape piece to lead the magnetic slot wedge, the tip welded fastening who leads the magnetic slot wedge has the spacing ring, the spacing ring passes through fixed rubber circle and the constant head tank joint that sets up on the lateral wall, and the constant head tank sets up the terminal surface in stator core.
Preferably, the transverse plates at the upper end and the lower end of the magnetic conduction slot wedge are arc-shaped plates, and the radian of each arc-shaped plate is consistent with that of the side wall of the stator core.
Preferably, the magnetic guiding slot wedge is a laminated magnetic slot wedge.
Preferably, a rubber filler strip is arranged between the upper-layer winding and the lower-layer winding.
Preferably, a corrugated plate is arranged between the magnetic conducting slot wedge and the lower-layer winding, and the longitudinal gap between the wave crest and the wave trough of the corrugated plate is smaller than the distance between the upper end surface of the magnetic conducting slot wedge and the lower-layer winding.
The invention has the technical effects and advantages that: the magnetic circuit of the stator of the permanent magnet machine,
1. when the spacing ring closely attached to stator core's tip, the rubber circle joint on the spacing ring lateral wall is to the constant head tank of stator core tip in to realize leading the installation of magnetic slot wedge, easy dismounting, and avoided offering the mounting groove in stator slot's inboard, reduced the processing degree of difficulty, and avoided the deformation condition of constant head tank in the course of working, thereby guaranteed the stability of leading the installation of magnetic slot wedge.
2. The magnetic conduction slot wedge is adopted, magnetic leakage of the tooth part at the notch is reduced, magnetic flux density of the tooth part is reduced, magnetic conductivity of a magnetic circuit is greatly improved, the volume and material utilization rate of the permanent magnet generator are further reduced, three-phase voltage waveform quality is also improved, harmonic content of the tooth part is obviously reduced, iron loss is correspondingly reduced, and working efficiency of the generator is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic view of the connection between the position-limiting ring and the magnetic guiding slot wedge;
fig. 4 is a sectional view of the stator core.
In the figure: 1. a stator core; 2. an upper layer winding; 3. a lower layer winding; 4. a magnetic conduction slot wedge; 5. a limiting ring; 6. a rubber ring; 7. positioning a groove; 8. a rubber filler strip; 9. a corrugated plate; 10 stator slots.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a permanent magnet machine stator magnetic circuit as shown in figures 1-4, which comprises a stator core 1, an upper layer winding 2 and a lower layer winding 3 which are arranged in a stator slot 10 arranged at the inner side of the stator core 1, a magnetic guide slot wedge 4 is clamped at the opening of the stator slot 10, the magnetic guide slot wedge 4 is an I-shaped piece, a limit ring 5 is welded and fixed at the end part of the magnetic guide slot wedge 4, the limit ring 5 is clamped with a positioning slot 7 through a rubber ring 6 fixedly arranged on the outer side wall, the positioning slot 7 is arranged at the end surface of the stator core 1, the I-shaped magnetic guide slot wedge 4 is inserted into the opening of the stator slot 10 to be pushed inwards when the magnetic guide slot wedge 4 is installed, the limit ring 5 is close to the end part of the stator core 1, when the limit ring 5 is tightly attached to the end part of the stator core 1, the rubber ring 6 on the outer side wall of the limit ring 5 is clamped into the positioning slot 7, thereby realize leading the installation of magnetic slot wedge 4, easy dismounting to avoided offering the mounting groove in the inboard of stator slot 10, reduced the processing degree of difficulty, and avoided the deformation condition of constant head tank 7 in the course of working, thereby guaranteed to lead the stability of magnetic slot wedge 4 installation.
Lead the diaphragm of the upper and lower extreme of magnetic slot wedge 4 and be the arc, and the radian of arc is unanimous with the radian of 1 lateral wall of stator core, guarantees to lead magnetic slot wedge 4 through two blocks of diaphragms about with the laminating of 10 inner walls of stator slot and 1 inner wall of stator core to further guarantee to lead the stability of magnetic slot wedge 4 at 1 inboard installations of stator core, avoid leading magnetic slot wedge 4 and take place the activity in stator slot 10 is inside.
The magnetic conduction slot wedge 4 is a laminated magnetic slot wedge, reduces the magnetic leakage of a tooth part at the notch, simultaneously reduces the magnetic flux density of the tooth part, greatly improves the magnetic conductivity of a magnetic circuit, further reduces the volume and the material utilization rate of the permanent magnet generator, simultaneously also improves the waveform quality of three-phase voltage, obviously reduces the harmonic content of the tooth part, correspondingly reduces the iron loss, and improves the working efficiency of the generator.
And a rubber gasket strip 8 is arranged between the upper-layer winding 2 and the lower-layer winding 3, and the upper-layer winding 2 and the lower-layer winding 3 are insulated through the rubber gasket strip 8.
Be provided with wave form board 9 between magnetic guide slot wedge 4 and the lower floor's winding 3, and the vertical clearance between 9 crests of wave form board and the trough is less than the interval between magnetic guide slot wedge 4 up end and the lower floor's winding 3, guarantees to compress tightly upper winding 2 and the lower floor's winding 3 in stator slot 10 through the restoring force of wave form board 9, avoids upper winding 2 and the lower floor's winding 3 to take place the activity in stator slot 10 to guarantee the stability of stator magnetic circuit.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides a permanent magnet machine stator magnetic circuit, includes stator core (1) and sets up upper winding (2) and lower floor winding (3) in stator slot (10) that stator core (1) inboard was seted up, its characterized in that: opening part joint of stator slot (10) has leads magnetic slot wedge (4), lead magnetic slot wedge (4) and be worker shape spare, lead the tip welded fastening of magnetic slot wedge (4) and have spacing ring (5), rubber ring (6) and constant head tank (7) joint that spacing ring (5) fixed set up on through the lateral wall, and constant head tank (7) are seted up in the terminal surface of stator core (1).
2. The stator magnetic circuit of a permanent magnet machine according to claim 1, wherein: and transverse plates at the upper end and the lower end of the magnetic guide slot wedge (4) are arc-shaped plates, and the radian of each arc-shaped plate is consistent with the radians of the inner walls of the stator slot (10) and the stator core (1).
3. The stator magnetic circuit of a permanent magnet machine according to claim 2, wherein: the magnetic guiding slot wedge (4) is a laminated magnetic slot wedge.
4. A stator magnetic circuit of a permanent magnet machine according to claim 3, characterized in that: and a rubber gasket strip (8) is arranged between the upper-layer winding (2) and the lower-layer winding (3).
5. The stator magnetic circuit of a permanent magnet machine according to claim 4, wherein: a corrugated plate (9) is arranged between the magnetic guiding slot wedge (4) and the lower layer winding (3), and the longitudinal gap between the wave crest and the wave trough of the corrugated plate (9) is smaller than the distance between the upper end surface of the magnetic guiding slot wedge (4) and the lower layer winding (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921272154.0U CN210468912U (en) | 2019-08-07 | 2019-08-07 | Permanent magnet machine stator magnetic circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921272154.0U CN210468912U (en) | 2019-08-07 | 2019-08-07 | Permanent magnet machine stator magnetic circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210468912U true CN210468912U (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921272154.0U Active CN210468912U (en) | 2019-08-07 | 2019-08-07 | Permanent magnet machine stator magnetic circuit |
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| CN (1) | CN210468912U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110365135A (en) * | 2019-08-07 | 2019-10-22 | 安徽德科电气科技有限公司 | A kind of permanent magnetic motor stator magnetic circuit |
-
2019
- 2019-08-07 CN CN201921272154.0U patent/CN210468912U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110365135A (en) * | 2019-08-07 | 2019-10-22 | 安徽德科电气科技有限公司 | A kind of permanent magnetic motor stator magnetic circuit |
| CN110365135B (en) * | 2019-08-07 | 2024-08-27 | 安徽德科电气科技有限公司 | Permanent magnet machine stator magnetic circuit |
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