CN216851459U - Ferrite auxiliary synchronous reluctance motor's rotor punching - Google Patents
Ferrite auxiliary synchronous reluctance motor's rotor punching Download PDFInfo
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- CN216851459U CN216851459U CN202220085860.XU CN202220085860U CN216851459U CN 216851459 U CN216851459 U CN 216851459U CN 202220085860 U CN202220085860 U CN 202220085860U CN 216851459 U CN216851459 U CN 216851459U
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Abstract
The utility model is suitable for a rotor is towards the piece field, provides a ferrite assisted synchronous reluctance motor's rotor punching sheet with high efficiency, and low torque is undulant, low noise, the rotor is towards the piece including being the flaky towards the piece main part of ring, evenly be provided with a plurality of logical cavity structures towards the piece main part, lead to the cavity structure including setting up at the first logical cavity group of inlayer, set up at medial second logical cavity group, and set up at outermost third logical cavity.
Description
Technical Field
The utility model belongs to rotor punching field especially relates to a ferrite auxiliary synchronous reluctance motor's rotor punching.
Background
With the global energy shortage problem, the quality requirement of the motor is improved by the nation, and the traditional motor type such as an asynchronous motor cannot meet the requirement of high efficiency. The rare earth permanent magnet synchronous motor has high efficiency, but the rare earth permanent magnet synchronous motor has high production cost due to the existence of rare earth. Although the emerging synchronous reluctance motor has the characteristics of low cost, certain high efficiency and the like, the power factor is low, and the reactive power is large.
Disclosure of Invention
An object of the utility model is to provide a ferrite auxiliary synchronous reluctance motor's rotor punching sheet with high efficiency, low moment of torsion is undulant, low noise.
The utility model discloses a realize like this, a synchronous reluctance machine's is towards piece to ferrite auxiliary rotor, the rotor is towards the piece including being the flaky towards the piece main part of ring, evenly be provided with a plurality of logical chamber structures towards in the piece main part, lead to the chamber structure including setting up at the first chamber group that leads to of inlayer, set up at medial second and lead to the chamber group, and set up at outmost third and lead to the chamber.
The utility model discloses a further technical scheme is: first logical chamber group is in including being used for ferrite male first logical chamber, and setting first logical chamber both sides are multiunit circular arc structure, and extend to towards piece main part edge, and with first logical chamber forms the first side logical chamber of similar circular arc structure.
The utility model discloses a further technical scheme is: the second through cavity group comprises a second through cavity for inserting ferrite and a second side through cavity which is arranged on two sides of the second through cavity, has a multi-group arc structure, extends to the edge of the punching sheet main body and forms a similar arc structure with the second through cavity.
The utility model discloses a further technical scheme is: the third through cavity is of a multi-section arc curved surface structure, and two ends of the third through cavity extend to the edge of the punching sheet main body.
The utility model discloses a further technical scheme is: the height of the first through cavity is greater than the height of the second through cavity and the height of the third through cavity, and the height of the second through cavity is greater than the height of the third through cavity.
The utility model discloses a further technical scheme is: the ratio of the total height of the first through cavity, the second through cavity and the third through cavity to the effective width of the punching sheet main body circular ring on one side is 0.35-0.5.
The utility model discloses a further technical scheme is: the first side through cavities on two sides and the edge of the punching sheet main body form a first circular arc, the second side through cavities on two sides and the edge of the punching sheet main body form a second circular arc, and two ends of the third through cavity and the edge of the punching sheet main body form a third circular arc.
The utility model discloses a further technical scheme is: the widths of the first arc, the second arc and the third arc are the same and are all 0.4mm-2 mm.
The utility model discloses a further technical scheme is: the central angles corresponding to the first arc, the second arc and the third arc are in the range of 0.8-2 degrees.
The utility model discloses a further technical scheme is: the first chamber that leads to arrives be provided with first layer strengthening rib between the first side leads to the chamber, the second leads to the chamber to go to be provided with second floor's strengthening rib between the chamber, the distance more than or equal to of first layer strengthening rib the distance of second floor's strengthening rib, first layer strengthening rib with the width scope of second floor's strengthening rib is 0.5mm-3 mm.
The utility model has the advantages that: this kind of outermost third of rotor punching leads to the chamber for the complete chamber that leads to of multistage circular arc curved surface structure, the harmonic component in magnetic field has been optimized, the fluctuation of torque and noise have been reduced, efficiency has been promoted simultaneously, both sides that lead to the chamber group except that outermost every layer lean on the rotor punching segment circular arc angle and the width design of excircle department, the mechanical strength of rotor can be effectively guaranteed, thereby local magnetic saturation can be optimized simultaneously and the fluctuation of torque is reduced and lifting efficiency, the logical chamber that leads to the chamber group except that outermost every layer leads to the chamber is led to the distance design in chamber with both sides side, can strengthen the mechanical properties of arranging inside rotor in, this kind of rotor punching simple structure in addition, low cost, easy production.
Drawings
Fig. 1 is a structural diagram of a rotor sheet of a ferrite auxiliary synchronous reluctance motor according to an embodiment of the present invention;
fig. 2 is a partial enlarged view of a rotor sheet of a ferrite auxiliary synchronous reluctance motor according to an embodiment of the present invention.
Detailed Description
Fig. 1-2 show a pair of ferrite auxiliary synchronous reluctance machine's rotor punching sheet, the rotor punching sheet is including being the flaky towards the piece main part of ring, evenly be provided with a plurality of logical chamber structures towards in the piece main part, lead to the chamber structure including setting up at first logical chamber group B1 of inlayer, set up at medial second logical chamber group B2, and set up at outermost third logical chamber A. First logical chamber group B1 is including being used for ferrite male first logical chamber 1, and set up first logical chamber 1 both sides are multiunit circular arc structure, and extend to towards piece main part edge, and with first logical chamber 1 forms the first side of similar circular arc structure and leads to chamber 1', 1 ". The second through cavity group B2 comprises a second through cavity 2 for inserting ferrite and second side through cavities 2 ', 2 ' ' which are arranged on two sides of the second through cavity 2, have a multi-group arc structure, extend to the edge of the punching sheet main body and form a similar arc structure with the second through cavity 2. The third through cavity A is of a multi-section arc curved surface structure, and two ends of the third through cavity A extend to the edge of the punching sheet main body. As shown in fig. 1, 1 (first through cavity), 1 '(first side through cavity) constitute B1, which is a first through cavity group, the first through cavity group is a through cavity farthest from the outer circle and closest to the center, where 1 is a middle ferrite material portion, 1', 1 ″ are two non-magnetic conductive material portions composed of multiple sets of arcs (R6, R7... R13), and the non-magnetic conductive material is usually air but not limited to air, such as non-magnetic conductive epoxy resin and the like; as shown in fig. 1, 1 ', 1 ″ is symmetrical about the Z axis (in this case, a ray of-45 degree), and similarly, 2 (second through cavity), 2 ' (second side through cavity) constitute B2, which is a second through cavity group, which is a second far and central second near through cavity from the outer circle, wherein 2 is a middle ferrite material portion, and 2 ', 2 ″ are two side non-magnetic material portions, which are composed of multiple sets of circular arcs (R14, R15.. R22); as shown in FIG. 1, A is a third through cavity which is symmetrical about the Z axis (in this case, a ray at an angle of-45 degrees), and the material in the third through cavity is a non-magnetic material; the first through cavity group B1 and the second through cavity group B2 form a cavity B, the cavity B and the outermost through cavity A form a through cavity structure together, the rotor punching sheet is provided with four groups of through cavity structures, and the four groups of through cavity structures are in rotational symmetry by taking the center of the rotor, namely the circle center, as the rotational symmetry center.
The height of the first through cavity 1 is greater than the height of the second through cavity 2 and the height of the third through cavity A, and the height of the second through cavity 2 is greater than the height of the third through cavity A; the ratio of the total height of the first through cavity 1, the second through cavity 2 and the third through cavity A to the effective width of the punching sheet main body circular ring on one side is 0.35-0.5. As shown in fig. 1, L1 is the ferrite height in the first through cavity 1, and W1 is the width thereof; l2 is the ferrite height in the second through cavity 2, W2 is the width; l3 is the height in the third lumen a. Based on the magnetic circuit design of the optimized rotor to output larger reluctance torque and permanent magnet torque, L1 is larger than L2 and larger than L3, and W1 is larger than W2; for the same purpose, the ratio of the total height (L1 + L2+ L3) of the two layers of ferrite and the third through cavity A to the effective length (L) of the punching sheet main body material is 0.35-0.5.
The first side through cavities 1 ', 1' 'on two sides and the edge of the punching sheet main body form a first circular arc R18, the second side through cavities 2', 2 '' on two sides and the edge of the punching sheet main body form a second circular arc R10, and two ends of the third through cavity A and the edge of the punching sheet main body form a third circular arc R3; the widths of the first circular arc R18, the second circular arc R10 and the third circular arc R3 are the same and are all 0.4mm-2 mm; the central angles of the first circular arc R18, the second circular arc R10 and the third circular arc R3 are in the range of 0.8-2 degrees. As shown in fig. 1, there are small segments of circular arcs (in this example, R3 (third circular arc), R10 (second circular arc), and R18 (first circular arc)) on the outer circle of the punching sheet main body on both sides of each layer of through cavity or through cavity group, and the three circular arcs in this example are enlarged in fig. 2, and share a circle center with the circle center of the rotor, and the difference between the radius and the radius of the outer circle ranges from 0.4mm to 2mm, that is, the values of Ht1, Ht2, and Ht3 range from 0.4mm to 2mm, and the ranges are selected in consideration of the production general level and mechanical strength, and the central angle degree range corresponding to the three circular arcs ranges from 0.8 ° to 2 °, for the reason that the central angle in this range can effectively reduce the torque fluctuation.
First logical chamber 1 extremely be provided with first layer strengthening rib 10 between the first side leads to chamber 1 ', 1' ', the second leads to chamber 2 extremely be provided with second layer strengthening rib 20 between the second side leads to chamber 2', 2 '', the distance more than or equal to of first layer strengthening rib 10 the distance of second layer strengthening rib 20, first layer strengthening rib with the width scope of second layer strengthening rib is 0.5mm-3 mm. As shown in fig. 1, in each layer of through cavities except the outermost layer of through cavity, there are reinforcing ribs between the ferrite part and the non-magnetic-permeability material part, the first layer of reinforcing ribs of the first through cavity group B1 is 10, and the corresponding width is Hc 1; the second layer of reinforcing ribs of the second through cavity group B2 is 20, the corresponding width is Hc2, the reinforcing ribs are used to improve the mechanical performance of the rotor 80 and assist in fixing the middle ferrite material portion, the material of the reinforcing ribs is the same as the main material of the punching sheet, in view of better mechanical performance, the width of the reinforcing ribs closer to the center of the rotor 80 is larger, in this example, Hc1 is greater than or equal to Hc2, and the width range of Hc1 and Hc2 is 0.5mm-3 mm.
This kind of outermost third of rotor punching leads to the chamber and is the complete chamber that leads to of multistage circular arc curved surface structure, the harmonic component in magnetic field has been optimized, the fluctuation of torque and noise have been reduced, efficiency has been promoted simultaneously, the both sides of leading to the chamber group except that outermost every layer lean on the design of segment circular arc angle and the width of rotor punching excircle department, the mechanical strength of rotor can be effectively guaranteed, thereby local magnetic saturation can be optimized simultaneously and the fluctuation of torque and lifting efficiency are reduced, the logical chamber that leads to the chamber group except that outermost every layer leads to the chamber and the distance design that both sides side lead to the chamber, can strengthen the mechanical properties of arranging inside rotor in, this kind of rotor punching simple structure in addition, low cost, easy production.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a synchronous reluctance motor's rotor punching is assisted to ferrite which characterized in that: the rotor punching sheet comprises a punching sheet main body which is in a circular ring shape, a plurality of through cavity structures are evenly arranged on the punching sheet main body, each through cavity structure comprises a first through cavity group arranged at the innermost layer, a second through cavity group arranged at the middle layer and a third through cavity arranged at the outermost layer.
2. The rotor punching sheet according to claim 1, wherein the first through cavity group comprises a first through cavity for ferrite insertion, and a first side through cavity which is arranged on two sides of the first through cavity, has a multi-group arc structure, extends to the edge of the punching sheet main body, and forms a similar arc structure with the first through cavity.
3. The rotor punching sheet according to claim 2, wherein the second through cavity group comprises a second through cavity for ferrite insertion, and second side through cavities which are arranged on two sides of the second through cavity, have a multi-group arc structure, extend to the edge of the punching sheet main body, and form a similar arc structure with the second through cavity.
4. The rotor punching sheet according to claim 3, wherein the third through cavity is of a multi-section arc curved surface structure, and two ends of the third through cavity extend to the edge of the punching sheet main body.
5. The rotor sheet according to claim 4, wherein the height of the first through cavity is greater than the height of the second through cavity and the height of the third through cavity, and the height of the second through cavity is greater than the height of the third through cavity.
6. The rotor punching sheet according to claim 5, wherein the ratio of the total height of the first through cavity, the second through cavity and the third through cavity to the effective width of the punching sheet main body ring on one side is 0.35-0.5.
7. The rotor punching sheet according to claim 6, wherein the first side through cavities on two sides and the punching sheet main body edge form a first circular arc, the second side through cavities on two sides and the punching sheet main body edge form a second circular arc, and two ends of the third through cavity and the punching sheet main body edge form a third circular arc.
8. The rotor sheet according to claim 7, wherein the widths of the first arc, the second arc and the third arc are the same and are all 0.4mm-2 mm.
9. The rotor sheet according to claim 8, wherein the central angles corresponding to the first arc, the second arc and the third arc are in the range of 0.8-2 degrees.
10. The rotor punching sheet according to claim 9, wherein a first layer of reinforcing ribs is arranged between the first through cavity and the first side through cavity, a second layer of reinforcing ribs is arranged between the second through cavity and the second side through cavity, the distance between the first layer of reinforcing ribs is greater than or equal to the distance between the second layer of reinforcing ribs, and the width range of the first layer of reinforcing ribs and the second layer of reinforcing ribs is 0.5mm-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220085860.XU CN216851459U (en) | 2022-01-13 | 2022-01-13 | Ferrite auxiliary synchronous reluctance motor's rotor punching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220085860.XU CN216851459U (en) | 2022-01-13 | 2022-01-13 | Ferrite auxiliary synchronous reluctance motor's rotor punching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216851459U true CN216851459U (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220085860.XU Active CN216851459U (en) | 2022-01-13 | 2022-01-13 | Ferrite auxiliary synchronous reluctance motor's rotor punching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216851459U (en) |
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2022
- 2022-01-13 CN CN202220085860.XU patent/CN216851459U/en active Active
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