CN220190544U - Rotor punching sheet with inclined pole structure and rotor thereof - Google Patents
Rotor punching sheet with inclined pole structure and rotor thereof Download PDFInfo
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- CN220190544U CN220190544U CN202321344045.1U CN202321344045U CN220190544U CN 220190544 U CN220190544 U CN 220190544U CN 202321344045 U CN202321344045 U CN 202321344045U CN 220190544 U CN220190544 U CN 220190544U
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- 238000004080 punching Methods 0.000 title claims abstract description 48
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000003475 lamination Methods 0.000 description 10
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model relates to a rotor punching sheet with an oblique pole structure and a rotor thereof, wherein a magnetic steel hole and a lightening hole are formed in the rotor punching sheet, a plurality of lightening holes are formed in an inner ring of the rotor punching sheet and are distributed at equal intervals around a circle center, positioning holes are formed between adjacent lightening holes, and the plurality of rotor punching sheets form oblique poles through different positioning holes and/or different positions of the positioning holes. According to the rotor punching sheet, key groove inclined poles are canceled, front and back installation is not needed, and the production efficiency is improved; meanwhile, the processing cost of the shaft is saved; in addition, various sheet-type structures can exist in the key slot structure, and the management cost is reduced after the key slot is eliminated; the utility model has only one punching structure, reduces the difficulty of designing the iron core mould and reduces the investment of a plurality of sets of moulds.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a rotor punching sheet with a skewed pole structure.
Background
In the design process of the permanent magnet motor, the most effective method for reducing the cogging torque of the motor is to make a stator chute or a rotor oblique pole, and the two modes are the same in principle and have almost the same effect. The current automobile motor is more prone to be designed into a rotor inclined pole, because the stator chute is much more complicated in technology, the stator lamination technology and the wire-drawing technology are more difficult to be caused by the chute, and the vibration noise of the stator chute is also larger, so that the motor is more prone to be designed into a rotor sectional inclined pole in the field of new energy automobiles.
In the prior art, the scheme of the rotor inclined pole mainly comprises the following two types, namely, case one: the method is realized by overlapping the front side and the back side of an asymmetric key slot and a rotor; case two: the rotation of the asymmetric convex hulls in the lightening holes is utilized; the two ways have the following problems: in the first case, the key slot scheme has forward and backward overlapping operation, so that the industrialization efficiency is affected; the key groove is processed on the shaft, so that the cost is high; the convex hull in the second case has smaller size, and is poor in oblique precision when being used for rotary positioning.
Disclosure of Invention
In order to solve the technical problems, a first object of the present utility model is to provide a rotor punching sheet with a skewed pole structure, which is capable of facilitating a rotor to perform a segmented skewed pole, reducing cost and improving efficiency; a second object of the present utility model is to provide a rotor with a skewed pole structure.
In order to achieve the first object, the present utility model adopts the following technical scheme:
a rotor punching sheet with an oblique pole structure is provided with a magnetic steel hole and a lightening hole, wherein the lightening holes are arranged on the inner ring of the rotor punching sheet and are distributed at intervals around the circle center at equal intervals, positioning holes are further formed between the adjacent lightening holes, and the oblique poles are formed between the rotor punching sheets through different positioning holes and/or different positions of the positioning holes.
As a preferable scheme: the positioning holes are circular holes, and the distance between each circular hole and the corresponding weight reducing hole on the clockwise rotating side is different.
As a preferable scheme: the locating holes are waist-shaped holes, the distance between the two ends of each waist-shaped hole and the lightening holes on the two sides is the same, and a plurality of circular arcs are respectively arranged on the two radial sides of each waist-shaped hole.
As a preferable scheme: the positioning holes comprise round holes and waist-shaped holes, and the round holes and the waist-shaped holes are alternately arranged at intervals.
As a preferable scheme: each circular hole is spaced apart from the corresponding weight-reducing hole on the clockwise rotation side; each waist-shaped hole is provided with a plurality of circular arcs along the radial two sides respectively.
As a preferable scheme: the locating holes are 8 and comprise 4 circular holes and 4 waist-shaped holes, and the circular holes and the waist-shaped holes are alternately arranged at intervals.
In order to achieve the second object, the present utility model adopts the following technical scheme:
the utility model provides a take rotor of oblique utmost point structure, includes pivot, rotor punching, baffle and clamping ring, rotor punching cover establish in the pivot and with pivot interference fit, two baffles set up respectively at the both ends of rotor punching, the one end of pivot still is equipped with the shaft shoulder, and one baffle offsets with the shaft shoulder, and another baffle compresses tightly through the clamping ring outward, rotor punching is the rotor punching of above-mentioned arbitrary one.
As a preferable scheme: the rotor punching sheets are multi-section, and different positioning holes of two adjacent sections of rotor punching sheets are aligned.
Compared with the prior art, the utility model has the beneficial effects that:
according to the rotor oblique pole, the positioning holes are designed on the rotor punching sheet, the positioning holes at different positions are adopted for alignment at different rotor punching sheet ends and then penetrate through the positioning tool rod, so that the rotor oblique pole is realized, and various oblique pole schemes can be realized by only one punching sheet structure.
According to the rotor punching sheet, a key groove structure is eliminated, front and back installation is not needed, and the production efficiency is improved; meanwhile, the processing cost of the shaft is saved; in addition, various sheet-type structures can exist in the key slot structure, and the management cost is reduced after the key slot is eliminated; the utility model has only one punching structure, reduces the difficulty of designing the iron core mould and reduces the investment of a plurality of sets of moulds.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a schematic view of a rotor lamination according to the present utility model;
FIG. 2 is a schematic view of a structure of the positioning hole in FIG. 1;
FIG. 3 is a schematic side view of a rotor formed by stacking rotor sheets using the pilot hole structure of FIG. 2;
FIG. 4 is an enlarged schematic view of a portion of a magnetic steel hole and another structure of the positioning hole in FIG. 1;
FIG. 5 is a schematic view of another rotor lamination according to the present utility model;
FIG. 6 is an enlarged partial schematic view of a pilot hole structure employing the pilot hole structure of FIG. 5;
FIG. 7 is a schematic side view of a rotor formed by stacking rotor sheets using the pilot hole structure of FIG. 5;
fig. 8 is a schematic view of a rotor lamination stack installation of the present utility model.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
Furthermore, in the description of the present utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1 to 8, a rotor with a skewed pole structure comprises a rotating shaft 10, rotor punching sheets 1, a baffle plate 8 and a compression ring 7, wherein the rotor punching sheets are sleeved on the rotating shaft and in interference fit with the rotating shaft, the two baffle plates are respectively arranged at two ends of the rotor punching sheets, a shaft shoulder is further arranged at one end of the rotating shaft, one baffle plate abuts against the shaft shoulder, and the other baffle plate is compressed by the compression ring.
The rotor punching sheet is provided with a magnetic steel hole 2 and a lightening hole 3, the lightening holes 3 are arranged on the inner ring of the rotor punching sheet and are distributed at intervals around the circle center at equal intervals, positioning holes are further formed between every two adjacent lightening holes, the rotor punching sheet is multi-section, and different positioning holes and/or different positions of the positioning holes of every two adjacent rotor punching sheets enable oblique poles to be formed between the rotor punching sheets 9.
In this embodiment, the positioning holes include circular holes 5 and waist-shaped holes 4, and the circular holes and the waist-shaped holes are alternately arranged at intervals. Each circular hole is spaced apart from the corresponding weight-reducing hole on the clockwise rotation side; each waist-shaped hole is provided with a plurality of circular arcs along the radial two sides respectively. Specifically, the locating holes are 8, and comprise 4 circular holes and 4 waist-shaped holes, and the circular holes and the waist-shaped holes are alternately arranged at intervals.
In other embodiments, the locating holes may all be circular holes, each circular hole being spaced differently from the corresponding clockwise-rotating side lightening holes. The rotor punching segment can realize oblique poles by using the alignment of circular holes at different positions.
In other embodiments, the positioning holes may be all waist-shaped holes, and the distance between two ends of each waist-shaped hole and the lightening holes on two sides is the same, and two radial sides of each waist-shaped hole are respectively provided with a plurality of circular arcs. The rotor punching segment can realize oblique poles by utilizing the circular arc alignment of different positions.
The utility model also aims to explain the structural characteristics of the utility model in detail by the following three specific cases:
1. for the p=4 pairs, the number of core segments n is a multiple of 4
1. The circumference is provided with 8 symmetrical waist-shaped holes, each waist-shaped hole is provided with 4 circular arcs, namely a circular arc A41, a circular arc B42, a circular arc C43 and a circular arc D44, and each circular arc corresponds to one deflection angle position;
2. when the rotor assemblies are stacked, the first stack passes through the angular position of the arc A41, the second stack passes through the angular position of the arc B42, the third stack passes through the angular position of the arc C43, the fourth stack passes through the angular position of the arc D44, and the four arcs just can pass through the same positioning rod 6;
3. after the lamination, an included angle is formed between each lamination rotor punching segment 9, so that rotor oblique poles are realized; the included angle between the first stack and the fourth stack takes the optimal oblique polar angle.
2. For the p=4 pairs, the number of core segments n is a multiple of 3:
1. the circumference is provided with 8 symmetrical waist-shaped holes, each waist-shaped hole is provided with 3 circular arcs, namely a circular arc A41, a circular arc B42 and a circular arc C43, and each circular arc corresponds to one deflection angle position;
2. when the rotor assemblies are stacked, the first stack passes through the angular position of the arc A41, the second stack passes through the angular position of the arc B42, and the third stack passes through the angular position of the arc C43, and the three arcs just can pass through the same positioning rod 6;
3. after the lamination, an included angle is formed between each lamination rotor punching segment 9, so that rotor oblique poles are realized; the included angle between the first stack and the third stack is the optimal oblique polar angle.
3. For the p=4 pairs, the number of core segments n is a multiple of 3:
1. 4 symmetrical waist-shaped holes and 4 circular holes are formed in the circumference, each waist-shaped hole is provided with 2 circular arcs, namely a circular arc A41 and a circular arc B42, and each circular arc corresponds to one deflection angle position; the 4 circular holes correspond to one deflection angle position;
2. when the rotor assemblies are stacked, the first stack passes through the angular position of the circular arc A41, the second stack passes through the angular position of the circular hole 5, and the third stack passes through the angular position of the circular arc B42, and the two circular arcs and one circular hole just can pass through the same positioning rod 6;
3. after the lamination, an included angle is formed between each lamination rotor punching segment 9, so that rotor oblique poles are realized; the included angle between the first stack and the third stack is the optimal oblique polar angle.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by those skilled in the art without departing from the spirit and principles of the utility model, and any simple modification, equivalent variation and modification of the above embodiments in light of the technical principles of the utility model may be made within the scope of the present utility model.
Claims (8)
1. The utility model provides a take rotor punching of oblique utmost point structure, has seted up magnet steel hole and lightening hole on the rotor punching, and a plurality of lightening holes set up in the inner circle of rotor punching, and around centre of a circle equidistance interval distribution, its characterized in that: and positioning holes are further formed between the adjacent lightening holes, and the plurality of rotor punching sheets pass through different positioning holes and/or different positions of the positioning holes, so that oblique poles are formed among the plurality of rotor punching sheets.
2. The rotor sheet with a skewed pole structure of claim 1, wherein: the positioning holes are circular holes, and the distance between each circular hole and the corresponding weight reducing hole on the clockwise rotating side is different.
3. The rotor sheet with a skewed pole structure of claim 1, wherein: the locating holes are waist-shaped holes, the distance between the two ends of each waist-shaped hole and the lightening holes on the two sides is the same, and a plurality of circular arcs are respectively arranged on the two radial sides of each waist-shaped hole.
4. The rotor sheet with a skewed pole structure of claim 1, wherein: the positioning holes comprise round holes and waist-shaped holes, and the round holes and the waist-shaped holes are alternately arranged at intervals.
5. The rotor sheet with a skewed pole structure of claim 4, wherein: each circular hole is spaced apart from the corresponding weight-reducing hole on the clockwise rotation side; each waist-shaped hole is provided with a plurality of circular arcs along the radial two sides respectively.
6. The rotor sheet with a skewed pole structure of claim 1, wherein: the locating holes are 8 and comprise 4 circular holes and 4 waist-shaped holes, and the circular holes and the waist-shaped holes are alternately arranged at intervals.
7. The utility model provides a take rotor of oblique utmost point structure, includes pivot, rotor punching, baffle and clamping ring, rotor punching cover establish in the pivot and with pivot interference fit, two baffles set up respectively at the both ends of rotor punching, the one end of pivot still is equipped with the shaft shoulder, and one baffle offsets with the shaft shoulder, and another baffle compresses tightly its characterized in that through the clamping ring outward: the rotor sheet is a rotor sheet according to any one of claims 1 to 5.
8. A rotor with a skewed pole structure as claimed in claim 7, wherein: the rotor punching sheets are multi-section, and different positioning holes of two adjacent sections of rotor punching sheets are aligned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321344045.1U CN220190544U (en) | 2023-05-30 | 2023-05-30 | Rotor punching sheet with inclined pole structure and rotor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321344045.1U CN220190544U (en) | 2023-05-30 | 2023-05-30 | Rotor punching sheet with inclined pole structure and rotor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220190544U true CN220190544U (en) | 2023-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321344045.1U Active CN220190544U (en) | 2023-05-30 | 2023-05-30 | Rotor punching sheet with inclined pole structure and rotor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220190544U (en) |
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2023
- 2023-05-30 CN CN202321344045.1U patent/CN220190544U/en active Active
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