CN217087608U - Rotor assembly of in-wheel motor - Google Patents
Rotor assembly of in-wheel motor Download PDFInfo
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- CN217087608U CN217087608U CN202123057104.0U CN202123057104U CN217087608U CN 217087608 U CN217087608 U CN 217087608U CN 202123057104 U CN202123057104 U CN 202123057104U CN 217087608 U CN217087608 U CN 217087608U
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- basic circular
- thickened
- rim
- circular ring
- rotor assembly
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Abstract
The utility model belongs to the technical field of external rotor motors, in particular to a rotor assembly of a hub motor, which comprises a rim; and a mounting ring disposed within the rim; the mounting ring includes: the outer peripheral surface of the basic circular ring part is connected with the inner wall of the rim, and the inner peripheral surface of the basic circular ring part is used for mounting a magnetic steel sheet; and the thickened parts on the left side and the thickened parts on the right side are respectively arranged on the left side and the right side of the peripheral surface of the basic circular ring part and are respectively matched with the basic circular ring part to form punching holes. Therefore, the mounting ring is divided into a basic circular ring part, a thickened part on the left side and a thickened part on the right side. The basic circular part is directly connected with the rim, and the thickness of the basic circular part can be thinner, so that more magnetic steel sheets can be mounted on the inner wall of the basic circular part. The thickening through the local position of collar makes the position of punching of collar can realize offering of fixed orifices when keeping self intensity and preventing self deformation or damage.
Description
Technical Field
The utility model relates to an external rotor electric machine technical field refers in particular to a rotor subassembly of in-wheel motor.
Background
The power of the existing external rotor motor is generally related to the number of the magnetic steel sheets, and the more the number of the magnetic steel sheets is, the larger the power generated by the motor is, and the smaller the power is. Therefore, the thickness of the mounting ring for mounting the magnetic steel sheets becomes an important factor influencing the number of the magnetic steel sheets. The diameter of the hub is basically the same specification, the thinner the mounting ring is, the larger the diameter of the inner wall of the mounting ring for mounting the magnetic steel sheets is, and the longer the circumference is, so that more magnetic steel sheets can be mounted, and the effect of improving the power of the motor is achieved.
If the outer rotor of the hub motor of the electric vehicle with the spacer bush is disclosed in the Chinese patent application No. 202011314369.1, the end cover of the hub motor is installed on the end face of the metal ring, the thickness of the metal ring cannot be lower than 6mm, otherwise, a hole (M5 inner hole) cannot be formed to connect the end cover, or the wall thickness of the periphery of the punched hole is too thin, and the strength of the outer rotor cannot effectively realize the installation and fixation of the end cover.
Disclosure of Invention
The utility model aims at providing a rotor subassembly of in-wheel motor.
The purpose of the utility model is realized like this:
a rotor assembly for an in-wheel motor includes
A rim; and
a mounting ring disposed within the rim;
the mounting ring includes:
the outer peripheral surface of the basic circular ring part is connected with the inner wall of the rim, and the inner peripheral surface of the basic circular ring part is used for mounting a magnetic steel sheet; and
the thickened parts on the left side and the thickened parts on the right side are respectively arranged on the left side and the right side of the peripheral surface of the basic circular ring part and are respectively matched with the basic circular ring part to form punching holes.
Preferably, the thickened part on the left side is an arc piece, the arc piece is matched with the outer peripheral surface of the basic circular ring part, and the arc piece is welded on the outer side part, close to the end face, of the basic circular ring part; and the joint of the arc sheet and the basic circular ring part is the left punching hole position.
Preferably, the thickened part on the left side is formed by bending the end part of the basic circular ring part outwards to form a flanging; the flanging is provided with a vertical annular surface, and the punching holes are formed in the annular surface.
Preferably, a tire limiting groove for mounting a tire is arranged in the middle of the rim, and the tire limiting groove comprises a shallow groove section and a deep groove section; the middle part of the basic circular part is welded at the inner side of the deep groove section;
the turning and the deep groove section form a fixing groove; and arc sheets are arranged in the fixing grooves, the outer ends of the arc sheets are attached to the inner sides of the flanges, and the inner ends of the arc sheets are welded with the outer walls of the deep groove sections.
Preferably, the thickened part on the left side is a turnover strip formed by bending the end part of the basic circular ring part outwards by 180 degrees; the turning strip is attached to the outer side face of the circular ring part of the base, and the end part of the turning strip extends to the wall face of the rim and is welded into a whole.
Preferably, the thickness of the basic circular ring part is 2.5mm-3.5mm,
preferably, the thickness of the thickened part on the left side and the thickened part on the right side are both 2.5mm-3.5 mm.
Compared with the prior art, the utility model outstanding and profitable technological effect is:
1. the utility model discloses a divide into basic ring portion, left thickening portion and the thickening portion triplex on right side with the collar. The basic circular part is directly connected with the rim, and the thickness of the basic circular part can be thinner, so that more magnetic steel sheets can be mounted on the inner wall of the basic circular part. And left thickening portion then sets up the outer peripheral face at basic ring portion with the thickening portion on right side, thereby under the condition that does not influence the installation of magnetic steel piece, both are connected with basic ring portion with the thickening portion on left thickening portion and right side and realize the thickening of the position of punching on the collar, and then the thickening through collar local position makes the position of punching of collar can realize offering of fixed orifices when keeping self intensity and preventing self deformation or damage, so that realize the installation to the end cover and guarantee the joint strength of end cover when installing on the collar.
2. The utility model discloses a thickening portion on left thickening portion and right side both can design for two liang of combinations of multiple structure, and the producer can be according to the structure of corresponding demand adjustment processing, and application scope is wider.
Drawings
Fig. 1 is a schematic view of the overall structure of embodiment 1.
FIG. 2 is a partial sectional view of example 1 before and after punching.
FIG. 3 is a partial sectional view of example 1 before and after punching.
FIG. 4 is a partial sectional view of example 2 before and after punching.
FIG. 5 is a partial sectional view of example 2 before and after punching.
FIG. 6 is a partial sectional view of example 3 before and after punching.
FIG. 7 is a partial sectional view of example 3 before and after punching.
FIG. 8 is a partial sectional view of example 4 before and after punching.
FIG. 9 is a partial sectional view of example 4 before and after punching.
FIG. 10 is a partial sectional view of example 5 before and after punching.
FIG. 11 is a partial sectional view of example 5 before and after punching.
FIG. 12 is a partial sectional view of example 6 before and after punching.
FIG. 13 is a partial sectional view of example 6 before and after punching.
Reference numerals are as follows: 1. a rim; 2. installing a ring; 3. a base circular portion; 4. a thickened portion on the left side; 5. a thickened part on the right side; 6. punching a hole site on the left; 7. punching a hole position on the right side; 8. a left fixation hole; 9. a right fixing hole; 10. a tire limit groove; 12. a left fixation groove; 15. a right fixing groove; 16. arc sheets; 17. punching hole sites; 18. flanging; 19. a shallow groove section; 20. a deep groove section; 21. a fixing groove; 22. and (6) turning over the folding strips.
Detailed Description
The following describes the present invention in further detail with reference to the accompanying drawings.
Example 1:
as shown in fig. 1 to 3, a rotor assembly of an in-wheel motor includes a rim 1 and a mounting ring 2. A mounting ring 2 is arranged inside the rim 1. The mounting ring 2 comprises a base ring part 3, a left thickened part 4 and a right thickened part 5. The middle part of the rim 1 is provided with a tire limiting groove 10 for mounting a tire, and the tire limiting groove 10 comprises a shallow groove section 19 and a deep groove section 20; the middle part of the basic circular part 3 is welded at the inner side of the deep groove section 20, the outer peripheral surface of the basic circular part 3 is connected with the inner wall of the hub, and the middle part of the basic circular part 3 is preferably welded at the inner side of the deep groove section 20 in the embodiment. The inner wall of the base circular part 3 is used for mounting a magnetic steel sheet as a rotor. Both the left thickened part 4 and the right thickened part 5 are respectively arranged at the left side and the right side of the outer peripheral surface of the basic circular part 3, and are respectively matched with the basic circular part 3 to form a punching hole 17, wherein the punching hole 17 comprises a left punching position 6 and a right punching position 7 which respectively correspond to the left thickened part 4 and the right thickened part 5. The left punching position 6 and the right punching position 7 are respectively used for punching by a producer to provide a left fixing hole 8 and a right fixing hole 9 so that the producer can install a left end cover and a right end cover of the hub motor.
The application is through dividing the collar 2 into basis ring portion 3, thickening portion two parts. The basic circular part 3 is directly connected with the rim 1, and the thickness can be made thinner, so that more magnetic steel sheets can be arranged on the inner wall of the basic circular part 3. And the thickening portion then sets up the outer peripheral face at basic ring portion 3, thereby under the condition that does not influence the installation of magnetic steel piece, the thickening of the position of punching on collar 2 is realized with basic ring portion 3 to both the thickening portion 5 on left thickening portion 4 and right side, and then the thickening through 2 local positions of collar makes the position of punching of collar 2 can realize offering of fixed orifices when keeping self intensity and preventing self deformation or damage, so that realize the installation to the end cover and guarantee the joint strength of end cover when installing on collar 2.
Further, the thickness of the basic circular part 3 is preferably 2.5mm to 3.5mm, and more preferably about 3 mm; the thickness of both the left thickened portion 4 and the right thickened portion 5 is preferably 2.5mm to 3.5mm, and more preferably about 3 mm. The thickness of the thickest position of the mounting ring 2 is about 6mm, so that the fixing holes can be formed, and the fasteners (such as bolts) and the end covers can be mounted and fixed.
As shown in fig. 2 to 3, the left thickened portion 4 may be a circular arc piece 16 fitted to the outer peripheral surface of the base circular portion 3 and welded to the outer side portion of the base circular portion 3 near the end surface. The joint of the circular arc piece 16 and the basic circular ring part 3 is the left punching position 6.
The thickened part 5 on the right side is also an arc piece 16 matched with the outer peripheral surface of the basic circular ring part 3 and welded on the outer side part of the basic circular ring part 3 close to the end surface; the joint of the circular arc piece 16 and the basic circular ring part 3 is the right punching position 7. Therefore, an installer can complete the installation of the basic circular ring part 3 and the circular arc sheet only by welding, and can complete the local thickening of the installation ring 2, and the installation is simple and rapid.
Example 2, this embodiment is basically the same as example 1, except that, as shown in fig. 4-5, the thickened portion 4 on the left side is the end of the basic circular ring portion 3 and is bent outwards to form a flange 18; the flanging 18 has a vertical circular ring surface, and a left punching position 6 is formed on the circular ring surface. The base circular portion 3 is integrally formed with the thickened portion 4 on the left side. The simple structure and the processing of this embodiment are convenient, only need simple the bending and stretching, can punch.
The right thickened portion 5 has the same shape as the left thickened portion 4.
The right thickened portion 5 has the same shape as the left thickened portion 4.
Example 4, this example is substantially the same as example 1, except that, as shown in fig. 8-9, the thickened portion 4 is a folded strip 22 formed by bending the end of the base circular portion 3 outwards by 180 degrees; the folding strips 22 are attached to the outer side face of the basic circular ring part 3, and the end parts of the folding strips 22 extend to the wall face of the rim 1 and are welded into a whole. The outer surface of the left folding strip 22 is the left punching position 6. Basis ring portion 3, left thickening portion 4 and 5 three of the thickening portion on right side can be stamping forming simultaneously in production collar 2, and the processing step of corresponding structure is comparatively simple and convenient.
The right thickened portion 5 has the same shape as the left thickened portion 4.
Example 5, as shown in fig. 10 to 11, the left thickened portion is different from the right thickened portion, the left thickened portion is the same as example 1, and the right thickened portion is the same as example 3.
Example 6, as shown in fig. 12 to 13, the left thickened portion is different from the right thickened portion, the left thickened portion is the same as example 1, and the right thickened portion is the same as example 4.
The four structures of the left-side thickened portion 4 and the four structures of the right-side thickened portion 5 may be provided respectively correspondingly, so that there are sixteen structural changes in total. The manufacturer can adjust the processing structure according to the corresponding requirements.
The circular arc piece 16 may be replaced by a circular ring or a rectangular piece, the circular ring is sleeved on the base circular ring portion 3, and the rectangular piece is directly attached to the outer peripheral surface of the base circular ring portion 3, so that the same effect as the circular arc piece 16 can be achieved.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only for illustrating the principles of the present invention, and that there can be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A rotor assembly for an in-wheel motor includes
A rim (1); and
a mounting ring (2) arranged within the rim (1);
characterized in that the mounting ring (2) comprises:
the outer peripheral surface of the basic circular ring part (3) is connected with the inner wall of the rim (1), and the inner peripheral surface of the basic circular ring part is used for installing a magnetic steel sheet; and
the left thickened part (4) and the right thickened part (5) are respectively arranged on the left side and the right side of the outer peripheral surface of the base circular ring part (3) and are respectively matched with the base circular ring part (3) to form punching holes (17).
2. A rotor assembly for an in-wheel motor according to claim 1, wherein: the thickened part (4) on the left side is an arc sheet, the arc sheet is matched with the outer peripheral surface of the base circular part (3), and the arc sheet is welded on the outer side part, close to the end face, of the base circular part (3); the joint of the circular arc piece and the basic circular ring part (3) is the punching position (17).
3. A rotor assembly for an in-wheel motor according to claim 1, wherein: the thickened part (4) on the left side is a flanging (18) formed by outwards bending the end part of the basic circular ring part (3); the flanging (18) is provided with a vertical ring surface, and the punching holes (17) are formed in the ring surface.
4. A rotor assembly for an in-wheel motor according to claim 3, wherein: the middle part of the rim (1) is provided with a tire limiting groove (10) for mounting a tire, and the tire limiting groove (10) comprises a shallow groove section (19) and a deep groove section (20); the middle part of the basic circular part (3) is welded on the inner side of the deep groove section (20);
the flanging (18) and the deep groove section (20) form a fixing groove (21); arc pieces are arranged in the fixing grooves (21), the outer ends of the arc pieces are attached to the inner sides of the turned edges (18), and the inner ends of the arc pieces are welded with the outer walls of the deep groove sections (20).
5. A rotor assembly for an in-wheel motor according to claim 1, wherein: the thickened part (4) on the left side is a turnover strip (22) formed by bending the end part of the basic circular part (3) outwards by 180 degrees; the folding strips (22) are attached to the outer side face of the basic circular ring portion (3), and the end portions of the folding strips (22) extend to the wall face of the rim (1) and are welded into a whole.
6. A rotor assembly for an in-wheel motor according to claim 1, wherein: the thickness of the basic circular part (3) is 2.5mm-3.5 mm.
7. A rotor assembly for an in-wheel motor according to claim 1, wherein: the thickness of the thickened part (4) on the left side and the thickness of the thickened part (5) on the right side are both 2.5mm-3.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123057104.0U CN217087608U (en) | 2021-12-07 | 2021-12-07 | Rotor assembly of in-wheel motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123057104.0U CN217087608U (en) | 2021-12-07 | 2021-12-07 | Rotor assembly of in-wheel motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217087608U true CN217087608U (en) | 2022-07-29 |
Family
ID=82537852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123057104.0U Active CN217087608U (en) | 2021-12-07 | 2021-12-07 | Rotor assembly of in-wheel motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217087608U (en) |
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2021
- 2021-12-07 CN CN202123057104.0U patent/CN217087608U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 318016 No.28, qiansuoxinzi Road, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Xinzhi Group Co.,Ltd. Address before: 318000 No. 28 Xin Qian Xin Road, Jiaojiang District, Taizhou, Zhejiang Patentee before: CHANGYINGXINZHI TECHNOLOGY Co.,Ltd. |