CN212588158U - Stator punching sheet for single-phase permanent magnet generator - Google Patents
Stator punching sheet for single-phase permanent magnet generator Download PDFInfo
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- CN212588158U CN212588158U CN202021762840.9U CN202021762840U CN212588158U CN 212588158 U CN212588158 U CN 212588158U CN 202021762840 U CN202021762840 U CN 202021762840U CN 212588158 U CN212588158 U CN 212588158U
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Abstract
The utility model belongs to the technical field of the generator, a stator punching sheet for single-phase permanent magnet generator is disclosed, including the stator punching sheet body of annular structure, and the external diameter of stator punching sheet body is 190mm, the internal diameter of stator punching sheet body is 105mm, and 24 stator grooves have been seted up equidistantly on the internal diameter circumference of stator punching sheet body, 24 the stator grooves divide into two groups, and two groups of stator grooves are first group of small grooves and second group of large grooves respectively; wherein: the size of the second group of large grooves is larger than that of the first group of small grooves, the number of the first group of small grooves is 8, and the number of the second group of large grooves is 16; in sum, the large slots are provided with the high-voltage windings, so that the windings are ensured to effectively reach a magnetic saturation state, and the reactance is in direct proportion to the slot area, so that the power-on area of the windings can be effectively increased, and the heating is reduced; the small groove is used for placing the low-voltage winding, so that the magnetic loss can be well reduced, the materials of the copper wire are saved, and the heating is reduced.
Description
Technical Field
The utility model belongs to the technical field of the generator, concretely relates to a stator punching for single-phase permanent magnet generator.
Background
At present, a single-phase permanent magnet generator stator is formed by overlapping single stator punching sheets, a coil is wound on the stator of the generator, and generators with different base numbers have stator punching sheets with different model sizes. The stator punching sheet is one of key parts of the single-phase permanent magnet generator, and the material, the inner circle size, the groove shape size and the like of the stator punching sheet have great influence on the efficiency of the single-phase permanent magnet generator.
In the prior art, the miniaturization of the generator is an inevitable development trend, but the problems of low efficiency, high heat generation and poor stability of the generator are gradually highlighted after the miniaturization.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a stator punching for single-phase permanent magnet generator to effectively solve the problem that exists after the generator is miniaturized inefficiency, generate heat height, poor stability.
In order to achieve the above object, the utility model provides a following technical scheme: a stator punching sheet for a single-phase permanent magnet generator comprises a stator punching sheet body with an annular structure, wherein the outer diameter of the stator punching sheet body is 190mm, the inner diameter of the stator punching sheet body is 105mm, 24 stator slots are equidistantly formed in the circumference of the inner diameter of the stator punching sheet body, the 24 stator slots are divided into two groups, and the two groups of stator slots are respectively a first group of small slots and a second group of large slots;
wherein:
the size of the second group of large grooves is larger than that of the first group of small grooves, the number of the first group of small grooves is 8, and the number of the second group of large grooves is 16.
Preferably, a stator tooth is formed between any two adjacent stator slots, is of a T-shaped structure, and is used for winding a winding of a single-phase permanent magnet generator in series.
Preferably, the size ratio of the second group of large slots to the first group of small slots is equal to the voltage ratio of the windings wound in series correspondingly.
Preferably, the width of the stator slot is gradually increased along the direction of the extension of the inner diameter and the outer diameter of the stator punching body.
Preferably, the periphery of the outer diameter of the stator punching sheet body is provided with cutting edges in an array mode, and the number of the cutting edges is at least 4.
Preferably, bayonets are arranged on the circumference of the outer diameter of the stator punching sheet body in an array mode, and the number of the bayonets is at least 6.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model discloses in, set up the different vat of size and microgroove, wherein:
the large slot is provided with the high-voltage winding, so that the winding is ensured to effectively reach a magnetic saturation state on one hand, and the reactance is in direct proportion to the slot area on the other hand, so that the power-on area of the winding can be effectively increased, and the heating is reduced;
the small groove is provided with the low-voltage winding, so that the magnetic loss can be well reduced, the materials of the copper wire are saved, and the heating is reduced;
in conclusion, the effects of improving the working efficiency of the generator and reducing the heating are effectively achieved; and moreover, the high-voltage winding is connected with the low-voltage winding in series, and the voltage stabilizing effect can be effectively achieved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 100-stator punching sheet body, 10-stator slots, 11-first group of small slots, 12-second group of large slots, 20-stator teeth, 30-cut edges and 40-bayonets.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In an embodiment of the present invention, a stator punching sheet for a single-phase permanent magnet generator is provided, and specifically, refer to fig. 1, which is a schematic structural diagram of the stator punching sheet;
as can be seen from the figure, the stator punching body 100 including the annular structure specifically includes: the outer diameter D1 of the stator punching sheet body 100 is 190mm, the inner diameter D2 of the stator punching sheet body 100 is 105mm, and 24 stator slots 10 are equidistantly formed in the inner diameter circumference of the stator punching sheet body 100;
the 24 stator slots 10 are divided into two groups, and the two groups of stator slots 10 are respectively a first group of small slots 11 and a second group of large slots 12; as can be seen, the second set of large grooves 12 is larger in size than the first set of small grooves 11; and the width of the stator slot 10 gradually increases along the direction that the inner diameter of the stator punching body 100 extends to the outer diameter.
Specifically, when actually manufacturing and producing the stator punching sheet disclosed above, regarding the size and number design of the first group of small slots and the second group of large slots, the following criteria should be referred to:
(1) about slot size
In the stator punching sheet, a direct proportion relation exists between the reactance and the corresponding slot type area, and the size of the reactance directly influences the trend of a magnetic circuit, so the size of the formed reactance needs to be considered when the slot type size and the number proportion are designed. In order to reduce the obstruction of reactance to a magnetic circuit, the reactance value of the stator punching sheet can be designed according to the voltage ratio of the series winding required by the corresponding single-phase permanent magnet generator, and then the size ratio of the second group of large slots 12 to the first group of small slots 11 can be designed according to the voltage ratio of the corresponding series winding, namely, when the size ratio of the second group of large slots 12 to the first group of small slots 11 is equal to the voltage ratio of the winding wound in the corresponding series connection, the reactance influence of the whole stator punching sheet is minimum.
Specifically, for the high-voltage winding, the winding is wound on the second group of large slots 12, so that the winding is ensured to effectively reach a magnetic saturation state on one hand, and on the other hand, the reactance is in direct proportion to the slot area, so that the power-on area of the winding can be effectively increased, and the heating is reduced;
specifically, for the low-voltage winding, the low-voltage winding is wound on the first group of small slots 11, so that the magnetic loss can be well reduced, the copper wire material is saved, and the heat generation is reduced.
(2) Number of slots
For the high-voltage winding and the low-voltage winding which are wound, a series connection winding is formed in the corresponding single-phase permanent magnet generator, and particularly, the number of the corresponding groove types can be distributed according to the voltage series connection principle.
Preferably, the number of the first group of small slots 11 is 8, the number of the second group of large slots 12 is 16, and the first group of small slots and the second group of large slots are distributed on the circumference of the inner diameter of the stator punching body 100 according to the relative positions shown in fig. 1.
In addition, in the figure:
The stator punching sheet body 100 is provided with the cutting edges 30 in an array manner on the outer diameter circumference, and the number of the cutting edges 30 is at least 4.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a stator punching for single-phase permanent magnet generator which characterized in that: the stator punching sheet comprises a stator punching sheet body (100) with an annular structure, the outer diameter of the stator punching sheet body (100) is 190mm, the inner diameter of the stator punching sheet body (100) is 105mm, 24 stator slots (10) are equidistantly arranged on the circumference of the inner diameter of the stator punching sheet body (100), the 24 stator slots (10) are divided into two groups, and the two groups of stator slots (10) are respectively a first group of small slots (11) and a second group of large slots (12);
wherein:
the size of the second group of large grooves (12) is larger than that of the first group of small grooves (11), the number of the first group of small grooves (11) is 8, and the number of the second group of large grooves (12) is 16.
2. The stator lamination for a single-phase permanent magnet generator according to claim 1, characterized in that: stator teeth (20) are formed between any two adjacent stator slots (10), and the stator teeth (20) are of T-shaped structures and are used for winding windings of a single-phase permanent magnet generator in series.
3. The stator lamination for a single-phase permanent magnet generator according to claim 2, characterized in that: the size ratio of the second group of large slots (12) to the first group of small slots (11) is equal to the voltage ratio of windings wound in series correspondingly.
4. The stator lamination for a single-phase permanent magnet generator according to claim 1, characterized in that: along the direction that the inside diameter of stator punching sheet body (100) is to the external diameter extension, the groove width of stator groove (10) increases gradually.
5. The stator lamination for a single-phase permanent magnet generator according to claim 1, characterized in that: the stator punching sheet is characterized in that trimming edges (30) are arranged on the circumference of the outer diameter of the stator punching sheet body (100) in an array mode, and the number of the trimming edges (30) is at least 4.
6. The stator lamination for a single-phase permanent magnet generator according to claim 1, characterized in that: the stator punching sheet is characterized in that bayonets (40) are arranged on the circumference of the outer diameter of the stator punching sheet body (100) in an array mode, and the number of the bayonets (40) is at least 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021762840.9U CN212588158U (en) | 2020-08-21 | 2020-08-21 | Stator punching sheet for single-phase permanent magnet generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021762840.9U CN212588158U (en) | 2020-08-21 | 2020-08-21 | Stator punching sheet for single-phase permanent magnet generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212588158U true CN212588158U (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021762840.9U Active CN212588158U (en) | 2020-08-21 | 2020-08-21 | Stator punching sheet for single-phase permanent magnet generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212588158U (en) |
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2020
- 2020-08-21 CN CN202021762840.9U patent/CN212588158U/en active Active
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