CN217486253U - Motor external rotor assembly, rotating part and motor - Google Patents
Motor external rotor assembly, rotating part and motor Download PDFInfo
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- CN217486253U CN217486253U CN202220772314.3U CN202220772314U CN217486253U CN 217486253 U CN217486253 U CN 217486253U CN 202220772314 U CN202220772314 U CN 202220772314U CN 217486253 U CN217486253 U CN 217486253U
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- magnetic ring
- rotor assembly
- electric machine
- motor
- external rotor
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Abstract
The utility model discloses a motor external rotor assembly, a rotating part and a motor, wherein the motor external rotor assembly comprises an installation part for installing fan blades, and an installation position is arranged in the installation part; and the magnetic ring is fixedly connected to the mounting position and is made of injection molding magnet materials. The outer rotor magnetic ring of the injection molding magnet replaces the original iron shell and rubber magnet, and the magnetic ring is directly installed at the installation position, so that the iron shell material is saved compared with the original structure, the same effect as the original structure can be achieved, the assembly process is saved compared with the original structure, and the effect of simplifying the process and improving the assembly efficiency is achieved.
Description
Technical Field
The utility model relates to a fan motor technical field, in particular to motor external rotor subassembly, rotating parts and motor.
Background
At present, direct current fans and low-power motors are mostly used for industrial electric cabinets and computer host cases, and the outer rotor of the motor adopts a structure that a rubber magnetic strip is pressed into an iron shell and then a rubber magnet with the iron shell is magnetized. The product with the structure has strict requirement on the length tolerance of the rubber magnetic strip, and can bulge out when the length of the rubber magnetic strip is longer and crack when the length of the rubber magnetic strip is shorter. And the product installation of this kind of structure has two processes at least, and one is that the rubber magnet is impressed the casing, and the other is that the belt casing magnet magnetizes, and the process is more, consumes the manual work and the cost is higher, and the quality risk is also big more.
Disclosure of Invention
The utility model aims to solve one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an outer rotor component of motor can make the packaging efficiency have great promotion.
The utility model discloses still provide a rotating part including above-mentioned motor external rotor subassembly.
The utility model discloses still provide a motor including above-mentioned rotating part.
According to the utility model discloses motor external rotor subassembly of first aspect embodiment, include:
the fan blade mounting structure comprises a mounting part for mounting fan blades, wherein a mounting position is arranged in the mounting part; and
and the magnetic ring is fixedly connected to the mounting position and is made of injection molding magnet materials.
According to the utility model discloses a motor external rotor assembly of first aspect embodiment has following beneficial effect at least: the outer rotor magnetic ring of the injection molding magnet replaces the original iron shell and rubber magnet, and the magnetic ring is directly arranged at the installation position, so that the iron shell material is saved compared with the original structure, the same effect as the original structure can be achieved, the assembly process is saved compared with the original structure, and the effects of simplifying the process and improving the assembly efficiency are achieved.
According to the utility model discloses an electric machine external rotor subassembly of first aspect embodiment, the installation position sets up to the groove, the magnetic ring sets up through the mode of embedding the inslot.
According to the utility model discloses an electric machine external rotor subassembly of first aspect embodiment, the magnetic ring passes through bonding agent fixed connection and is in the inslot.
According to the utility model discloses an electric machine external rotor subassembly of first aspect embodiment, the magnetic ring sets up the magnetic ring that multipolar internal diameter magnetizes.
According to the utility model discloses an electric machine external rotor subassembly of first aspect embodiment, the magnetization of magnetic ring adopts mould interior magnetization or orientation magnetization.
According to the utility model discloses an electric machine external rotor subassembly of first aspect embodiment, the magnetic ring adopts the magnetic energy product material preparation of at least 2.0MGOe to form.
According to the utility model discloses rotating part of second aspect embodiment includes: the outer rotor assembly for an electric machine according to the embodiment of the first aspect of the present invention.
According to the utility model discloses a second aspect embodiment rotating part, rotating part still include fan blade assembly, fan blade assembly sets up the periphery of installation department.
According to the utility model discloses a second aspect embodiment the rotatable parts, the flabellum subassembly with installation department formula structure as an organic whole.
According to the utility model discloses motor of third aspect embodiment includes: a rotating part according to an embodiment of the second aspect of the present invention.
It should be understood that the rotating component in the embodiment of the second aspect of the present invention and the motor in the embodiment of the third aspect of the present invention have the technical effects of the motor outer rotor assembly in the embodiment of the first aspect as described above, and therefore are not described again.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples;
fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the directional descriptions, such as the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means is one or more, a plurality of means is at least two, and the terms greater than, less than, exceeding, etc. are understood as excluding the number, and the terms above, below, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1, the outer rotor assembly of the electric motor according to the embodiment of the first aspect of the present invention does not need to add a casing assembly, and does not need a manufacturing method of back magnetization. The motor outer rotor assembly is applied to a fan motor and comprises a mounting portion 100 and a magnetic ring 200.
Wherein the mounting portion 100 is used for mounting the fan blade, it can be understood that the mounting portion 100 may be a part of the fan blade, or may be a connection base, and a rotating component such as a fan is formed by fixedly connecting the mounting portion 100 and the fan blade assembly 300, wherein a mounting position 110 is arranged in the mounting portion 100, a magnetic ring 200 is fixedly connected to the mounting position 110, and the magnetic ring 200 is made of an injection molding magnet material. The outer rotor magnetic ring 200 adopting the injection molding magnet replaces the original iron shell and rubber magnet, and the magnetic ring 200 is directly arranged at the mounting position 110, so that the iron shell material is saved compared with the original structure, the same effect as the original effect can be achieved, the assembly process is saved compared with the original process, and the effect of simplifying the process and improving the assembly efficiency is achieved.
In some embodiments of the present invention, the mounting locations 110 are disposed as slots, and the magnetic ring 200 is disposed in the slots by embedding. It will be appreciated that the magnetic ring 200 is of annular configuration and the slots may be provided as corresponding cylindrical slots. When the magnetic ring 200 is installed, the magnetic ring 200 is directly pressed into the installation part 100, and then the magnetic ring 200 pressed into the installation position 110 is sleeved on the stator coil, so that the motor can be assembled. Specifically, the magnetic ring 200 is fixedly connected in the groove by an adhesive. Preferably, PA6 is used as the adhesive, and the magnetic ring 200 has good strength after being formed, is self-formed into a ring shape and does not need an outer casing.
In some embodiments of the present invention, the magnetic ring 200 is configured as a multi-pole inner diameter magnetized magnetic ring 200. Specifically, the magnetic ring 200 is magnetized by in-mold magnetization or orientation magnetization. The unique pole tip orientation effect of the injection molding magnetic ring 200 can basically realize the self-shielding effect due to the enough wall thickness of the product, and the magnetic leakage is very small.
In some embodiments of the present invention, the magnetic ring 200 is made of a material having a magnetic energy product of at least 2.0 MGOe. Specifically, the injection molding magnet is made of a 2.0MGOe magnetic energy product material, the highest rubber magnetic energy product can only be 1.6MGOe, and the performance of the injection molding magnet is improved by 20% compared with the prior injection molding magnet by partially changing a rubber magnet.
The injection molding magnetic ring 200 is annular and has good size characteristics, the outer ring of the magnetic ring 200 has magnetic shielding effect, and can be assembled into an outer rotor of a motor for use after fan blades are directly pressed in, and the conventional magnetic stripe motor test performance and the inorganic shell injection molding magnetic ring 200 motor test contrast performance are as follows:
| electric current | Rotational speed | |
| ＜0.35A | 3600±150R/min | |
| Rubber magnet | 0.258A | 3750 |
| Feng plastic magnet | 0.319A | 3514 |
| Determination | OK | OK |
Show the utility model discloses the performance of the outer rotor subassembly of motor of the embodiment of the first aspect accords with the application demand.
Referring to fig. 1, the utility model discloses the rotating parts of second aspect embodiment, rotating parts can be the fan, and rotating parts include the utility model discloses the motor external rotor subassembly of first aspect embodiment, the utility model discloses a whole external rotor that moulds plastics impresses the fan, replaces original rubber magnet casing of impressing, the new method of pressing into the flabellum after magnetizing.
In some embodiments of the present invention, the rotating component further includes a fan blade assembly 300, the fan blade assembly 300 is disposed at the periphery of the mounting portion 100 to form a fan, wherein the fan blade assembly 300 is arranged in an axial circumferential array of the mounting portion 100.
In some embodiments of the present invention, the fan blade assembly 300 and the mounting portion 100 are integrated, the manufacturing and forming are simple, and the integrally injection molded outer rotor is directly pressed into the rotating part during the specific installation.
Referring to fig. 1, the motor of the third aspect of the present invention may be a fan motor, and the motor includes the rotating member of the second aspect of the present invention, which saves the assembling process and the iron shell material than the original one, and the effect of the motor is the same as the original one or better.
The technical features of the embodiments described above can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. An electric machine outer rotor assembly, comprising:
the fan blade mounting structure comprises a mounting part for mounting fan blades, wherein a mounting position is arranged in the mounting part; and
and the magnetic ring is fixedly connected to the mounting position and is made of injection molding magnet materials.
2. The external rotor assembly for an electric machine of claim 1, wherein: the mounting positions are arranged to be grooves, and the magnetic rings are arranged in the grooves in an embedded mode.
3. The external rotor assembly for an electric machine of claim 2, wherein: the magnetic ring is fixedly connected in the groove through an adhesive.
4. The external rotor assembly for an electric machine of claim 1, wherein: the magnetic ring is a multi-pole inner diameter magnetizing magnetic ring.
5. The outer rotor assembly of an electric machine of claim 4, wherein: and the magnetization of the magnetic ring adopts in-mold magnetization or orientation magnetization.
6. The outer rotor assembly of an electric machine of claim 1, wherein: the magnetic ring is made of a material with a magnetic energy product of at least 2.0 MGOe.
7. A rotating member, comprising: the electric machine external rotor assembly of any one of claims 1 to 6.
8. The rotating member according to claim 7, wherein: the rotating part still include the flabellum subassembly, the flabellum subassembly sets up the periphery of installation department.
9. The rotating component of claim 8, wherein: the fan blade component and the installation part are of an integrated structure.
10. An electric machine, comprising: a rotatable member as claimed in any one of claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220772314.3U CN217486253U (en) | 2022-04-02 | 2022-04-02 | Motor external rotor assembly, rotating part and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220772314.3U CN217486253U (en) | 2022-04-02 | 2022-04-02 | Motor external rotor assembly, rotating part and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217486253U true CN217486253U (en) | 2022-09-23 |
Family
ID=83306160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220772314.3U Active CN217486253U (en) | 2022-04-02 | 2022-04-02 | Motor external rotor assembly, rotating part and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217486253U (en) |
-
2022
- 2022-04-02 CN CN202220772314.3U patent/CN217486253U/en active Active
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