CN220822730U - Rotor assembly - Google Patents
Rotor assembly Download PDFInfo
- Publication number
- CN220822730U CN220822730U CN202321705892.6U CN202321705892U CN220822730U CN 220822730 U CN220822730 U CN 220822730U CN 202321705892 U CN202321705892 U CN 202321705892U CN 220822730 U CN220822730 U CN 220822730U
- Authority
- CN
- China
- Prior art keywords
- magnetic core
- rotor
- rotor magnetic
- permanent magnet
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000012790 adhesive layer Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 238000004026 adhesive bonding Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a rotor assembly, which comprises a rotating shaft, a rotor magnetic core fixedly connected to the periphery of the rotating shaft, and a permanent magnet fixedly connected to the periphery of the rotor magnetic core, wherein a first through hole for embedding the rotor magnetic core is formed in the permanent magnet, a lower annular boss is formed on the side wall of the lower end of the first through hole, and the rotor magnetic core is clamped on the lower annular boss. The rotor assembly can realize the rapid positioning and installation of the rotor magnetic core and the permanent magnet, and the combination strength between the rotor magnetic core and the permanent magnet is high, so that the rotor magnetic core and the permanent magnet are not easy to separate.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a rotor assembly.
Background
The current motor includes upper end cover and lower end cover, upper end cover and lower end cover coincide formation hold the chamber, hold the intracavity and install stator module and rotor module, rotor module includes the pivot, rotor magnetic core and permanent magnet, be provided with the through-hole that supplies rotor magnetic core embedding on the permanent magnet generally, the internal diameter size of whole through-hole is all equal, rotor magnetic core embedding through-hole is interior and directly adopts the gluing agent to bond and realizes the fixed of rotor magnetic core and permanent magnet, this structure has the problem that rotor magnetic core is difficult to the location in the through-hole, and be difficult for fixing, the motor can take place vibrations and produce a large amount of heat two when the operation, lead to the ageing whereabouts of gluing agent layer, and then make rotor magnetic core and permanent magnet take place the separation, lead to the motor to break down even damage.
The prior art lacks a rotor assembly that enables a fast positioning of the rotor core and the permanent magnets and a secure connection.
Disclosure of utility model
In view of the above-mentioned shortcomings, the present utility model aims to provide a rotor assembly, which can realize rapid positioning and installation of a rotor magnetic core and a permanent magnet, and has high bonding strength between the rotor magnetic core and the permanent magnet, and is not easy to separate.
The technical scheme adopted by the utility model for achieving the purpose is as follows: the rotor assembly comprises a rotating shaft, a rotor magnetic core fixedly connected to the periphery of the rotating shaft and a permanent magnet fixedly connected to the periphery of the rotor magnetic core, wherein a first through hole for embedding the rotor magnetic core is formed in the permanent magnet, a lower annular boss is formed on the side wall of the lower end of the first through hole, and the rotor magnetic core is clamped on the lower annular boss.
As a further improvement of the utility model, an upper annular boss is formed on the upper end side wall of the first through hole, and the rotor magnetic core is arranged between the upper annular boss and the lower annular boss in a matching way.
As a further improvement of the utility model, a plurality of longitudinal grooves are formed on the outer surface of the rotor magnetic core at intervals, and an adhesive layer is filled between the longitudinal grooves and the permanent magnets.
As a further improvement of the utility model, a plurality of outwards protruding clamping strips are formed on the surface of the rotating shaft, which is connected with the rotor magnetic core; meanwhile, a second through hole for the rotating shaft to pass through is formed on the rotor magnetic core, a plurality of strip-shaped clamping grooves corresponding to the clamping strips one by one are formed on the side wall of the second through hole, and the clamping strips are clamped into the strip-shaped clamping grooves.
The beneficial effects of the utility model are as follows: according to the rotor assembly, the lower annular boss is arranged in the first through hole on the permanent magnet, when the rotor assembly is assembled, the rotor magnetic core is clamped on the lower annular boss after being embedded into the first through hole, and then the adhesive is filled between the rotor magnetic core and the permanent magnet, so that the adhesive is solidified to form an adhesive layer, and the assembly of the rotor magnetic core and the permanent magnet is completed, thereby realizing the rapid positioning and installation of the rotor magnetic core and the permanent magnet, and the rotor magnetic core and the permanent magnet are high in bonding strength and are not easy to separate;
The upper end of the first through hole is provided with the annular boss, so that the inner diameter of the inlet end of the first through hole is larger than the diameter of the rotor magnetic core, and the rotor magnetic core is easier to be placed in the first through hole;
A plurality of longitudinal grooves are formed on the outer surface of the rotor magnetic core at intervals, and an adhesive layer is filled between the longitudinal grooves and the permanent magnets. The adhesive is favorable for being fully filled in the longitudinal grooves, the reliability of the adhesive layer is improved, and the connection strength between the rotor magnetic core and the permanent magnet is further improved.
The foregoing is a summary of the utility model and is further defined by the following detailed description of the utility model when read in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an exploded view of the present utility model;
FIG. 3 is a schematic view of the structure of the permanent magnet of the present utility model;
FIG. 4 is an enlarged view of a portion of the location A of FIG. 2;
Fig. 5 is a partial enlarged view of position B of fig. 2.
Detailed Description
In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description of the specific embodiments of the present utility model is given with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1 to 4, an embodiment of the present utility model provides a rotor assembly, which includes a rotating shaft 1, a rotor core 2 fixedly connected to the outer periphery of the rotating shaft 1, and a permanent magnet 3 fixedly connected to the outer periphery of the rotor core 2, wherein a first through hole 31 for embedding the rotor core 2 is formed on the permanent magnet 3, a lower annular boss 311 is formed on a lower end sidewall of the first through hole 31, and the rotor core 2 is clamped on the lower annular boss 311.
The rotor subassembly of this embodiment sets up annular boss 311 down through the first through-hole 31 on permanent magnet 3, when assembling, is blocked on annular boss 311 down after rotor magnetic core 2 imbeds first through-hole 31, again fills the gluing agent between rotor magnetic core 2 and permanent magnet 3, makes the gluing agent solidification form the adhesive linkage, accomplishes rotor magnetic core 2 and permanent magnet 3's assembly, from this, realizes rotor magnetic core 2 and permanent magnet 3's quick location installation, and the joint strength between rotor magnetic core 2 and permanent magnet 3 is big, difficult emergence separation.
In this embodiment, an upper annular boss 312 is formed on the upper end sidewall of the first through hole 31, and the rotor core 2 is disposed between the upper annular boss 312 and the lower annular boss 311 in a matching manner. In this way, the inner diameter of the inlet end of the first through hole 31 is larger than the diameter of the rotor core 2, and the rotor core 2 is more easily placed in the first through hole 31.
Specifically, a plurality of longitudinal grooves 21 are formed on the outer surface of the rotor core 2 at intervals, and an adhesive layer is filled between the longitudinal grooves 21 and the permanent magnets 3. The gap between the longitudinal groove 21 and the permanent magnet 3 is relatively large, so that the adhesive is favorable for being fully filled in the longitudinal groove 21, an adhesive layer with large thickness is formed, the reliability and the adhesive strength of the adhesive layer are improved, and the connection strength between the rotor magnetic core 2 and the permanent magnet 3 is further improved.
In this embodiment, a plurality of outwardly protruding clamping strips 11 are formed on the surface of the rotating shaft 1 connected with the rotor magnetic core 2; meanwhile, a second through hole 22 through which the rotating shaft 1 passes is formed in the rotor core 2, and a plurality of bar-shaped clamping grooves (not labeled in the drawing) corresponding to the clamping bars 11 one by one are formed on the side wall of the second through hole 22, and the clamping bars 11 are clamped into the bar-shaped clamping grooves. Thereby, a fixed connection of the rotating shaft and the rotor core is achieved.
The foregoing is merely a preferred embodiment of the present utility model, and the technical scope of the present utility model is not limited to the above embodiments, so that other structures using the same or similar technical features as those of the above embodiments of the present utility model are all within the scope of the present utility model.
Claims (4)
1. The rotor assembly comprises a rotating shaft, a rotor magnetic core fixedly connected to the periphery of the rotating shaft and a permanent magnet fixedly connected to the periphery of the rotor magnetic core, and is characterized in that a first through hole for embedding the rotor magnetic core is formed in the permanent magnet, a lower annular boss is formed on the side wall of the lower end of the first through hole, and the rotor magnetic core is clamped on the lower annular boss.
2. The rotor assembly of claim 1 wherein an upper annular boss is formed on an upper sidewall of the first through bore, the rotor core being matingly disposed between the upper and lower annular bosses.
3. A rotor assembly according to claim 1, wherein a plurality of longitudinal grooves are formed on the outer surface of the rotor core at intervals, and an adhesive layer is filled between the longitudinal grooves and the permanent magnets.
4. The rotor assembly of claim 1, wherein a plurality of outwardly protruding clips are formed on a surface of the rotating shaft connected to the rotor core; meanwhile, a second through hole for the rotating shaft to pass through is formed on the rotor magnetic core, a plurality of strip-shaped clamping grooves corresponding to the clamping strips one by one are formed on the side wall of the second through hole, and the clamping strips are clamped into the strip-shaped clamping grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321705892.6U CN220822730U (en) | 2023-06-30 | 2023-06-30 | Rotor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321705892.6U CN220822730U (en) | 2023-06-30 | 2023-06-30 | Rotor assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220822730U true CN220822730U (en) | 2024-04-19 |
Family
ID=90713468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321705892.6U Active CN220822730U (en) | 2023-06-30 | 2023-06-30 | Rotor assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220822730U (en) |
-
2023
- 2023-06-30 CN CN202321705892.6U patent/CN220822730U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |