CN213817378U - Direct current variable frequency motor structure - Google Patents
Direct current variable frequency motor structure Download PDFInfo
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- CN213817378U CN213817378U CN202023281300.1U CN202023281300U CN213817378U CN 213817378 U CN213817378 U CN 213817378U CN 202023281300 U CN202023281300 U CN 202023281300U CN 213817378 U CN213817378 U CN 213817378U
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- direct current
- variable frequency
- permanent magnet
- current variable
- frequency motor
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Abstract
The utility model discloses a direct current variable frequency motor structure, including external rotor and inner stator, the inner stator is connected with the motor shaft, and the external rotor inboard is fixed with the holder, and the circumference is provided with a plurality of reference columns on this holder, inlays between the reference column and is equipped with the permanent magnet. The direct-current variable frequency motor structure enables the installation position of the permanent magnet to be more accurate, prevents the permanent magnet from falling off, and can greatly improve the production efficiency and the yield of products.
Description
Technical Field
The utility model relates to a motor structure, especially a direct current inverter motor structure.
Background
The direct-current variable frequency motor is widely used in electric appliances such as fans and the like due to high efficiency and energy conservation. The traditional direct current variable frequency motor comprises a stator and a rotor, wherein a motor coil is arranged on the stator, a motor shaft is connected with the stator, and a plurality of permanent magnets are fixed in the rotor. In prior art, the permanent magnet in the rotor generally adopts sticky mode to come the staff installation fixed, is difficult to guarantee the accuracy of permanent magnet position, and long-term the use can appear the permanent magnet and drop and lead to motor trouble, and the sticky mode of fixed permanent magnet has restricted production efficiency greatly moreover, leads to product production efficiency, yields not high.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a direct current inverter motor structure to guarantee the accuracy of permanent magnet mounted position, prevent that the permanent magnet from droing, effectively improve the production efficiency and the yields of product.
In order to solve the technical problem, the utility model discloses a direct current inverter motor structure, including external rotor and inner stator, the inner stator is connected with the motor shaft, the external rotor inboard is fixed with the holder, and the circumference is provided with a plurality of reference columns on this holder, it is equipped with the permanent magnet to inlay between the reference column.
The opposite side surfaces of the positioning columns are provided with grooves, and the two side edges of the permanent magnet are correspondingly inserted into the grooves, so that the permanent magnet is positioned more accurately and fixed more reliably and cannot fall off.
The outer rotor is provided with the motor cover, the motor cover is provided with the step-shaped boss, and the step-shaped boss is correspondingly matched with the opening of the outer rotor, so that the installation position of the motor cover is more accurate, and the motor cover is effectively prevented from deviating from the central shaft to influence the operation of the motor.
The utility model has the advantages that: in the direct-current variable frequency motor structure, the retainer is fixed on the inner side of the outer rotor, the plurality of positioning columns are arranged on the retainer in the circumferential direction, and the permanent magnet is embedded between the positioning columns, so that the mounting position of the permanent magnet is more accurate, the permanent magnet is prevented from falling off, and the production efficiency and the yield of products can be greatly improved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the exploded structure of the present invention;
fig. 3 is a schematic sectional structure diagram of the present invention.
Detailed Description
Referring to fig. 1 to 3, the utility model discloses a direct current variable frequency motor structure, including external rotor 1 and inner stator 2, inner stator 2 is connected with motor shaft 3, external rotor 1 inboard is fixed with holder 4, and the circumference is provided with a plurality of reference columns 41 on this holder 4, it is equipped with permanent magnet 5 to inlay between the reference column 41.
In this embodiment, the opposite side surfaces of the positioning column 41 are both provided with a groove 42, and two side edges of the permanent magnet 5 are correspondingly inserted into the grooves 42. The outer rotor 1 is provided with a motor cover 6, the motor cover 6 is provided with a step-shaped boss 61, and the step-shaped boss 61 is correspondingly matched with an opening of the outer rotor 1.
The above is only the preferred embodiment of the present invention, as long as the technical solution of the purpose of the present invention is realized by the substantially same means, all belong to the protection scope of the present invention.
Claims (3)
1. The utility model provides a direct current inverter motor structure, includes external rotor and inner stator, and the inner stator is connected with the motor shaft, its characterized in that: the inner side of the outer rotor is fixed with a retainer, a plurality of positioning columns are arranged on the periphery of the retainer, and permanent magnets are embedded between the positioning columns.
2. The structure of a direct current variable frequency motor according to claim 1, characterized in that: the opposite side surfaces of the positioning columns are provided with grooves, and two side edges of the permanent magnet are correspondingly inserted into the grooves.
3. The structure of a direct current variable frequency motor according to claim 2, characterized in that: the outer rotor is provided with a motor cover, the motor cover is provided with a step-shaped boss, and the step-shaped boss is correspondingly matched with an opening of the outer rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023281300.1U CN213817378U (en) | 2020-12-29 | 2020-12-29 | Direct current variable frequency motor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023281300.1U CN213817378U (en) | 2020-12-29 | 2020-12-29 | Direct current variable frequency motor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213817378U true CN213817378U (en) | 2021-07-27 |
Family
ID=76947934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023281300.1U Active CN213817378U (en) | 2020-12-29 | 2020-12-29 | Direct current variable frequency motor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213817378U (en) |
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2020
- 2020-12-29 CN CN202023281300.1U patent/CN213817378U/en active Active
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