CN212258692U - Special air duct for permanent magnet motor rotor - Google Patents
Special air duct for permanent magnet motor rotor Download PDFInfo
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- CN212258692U CN212258692U CN202020327616.0U CN202020327616U CN212258692U CN 212258692 U CN212258692 U CN 212258692U CN 202020327616 U CN202020327616 U CN 202020327616U CN 212258692 U CN212258692 U CN 212258692U
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- air duct
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- permanent magnet
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Abstract
The utility model discloses a special air duct of permanent-magnet machine rotor, including motor web axle, and with motor web axle fixed connection's panel, and with panel fixed connection's rotor, the panel stretches out be provided with the air duct on the extension of rotor one end, the air duct is kept away from the one end of panel be provided with motor web axle fixed connection's unilateral big fan. The utility model provides a special air duct of permanent-magnet machine rotor, simple structure, reasonable in design has that the wind-guiding is effectual, and cooling efficiency is high, and the installation is firm reliable, advantages such as easy production.
Description
Technical Field
The utility model relates to an electric motor rotor machinery technical field, concretely relates to special air duct of permanent-magnet machine rotor.
Background
The principle of the permanent magnet motor is that a permanent magnet replaces an excitation winding of a traditional motor to provide an excitation flux, and the permanent magnet motor is generally divided into an inner rotor series motor and an outer rotor series motor, wherein a rotor of a high-speed permanent magnet motor of the inner rotor series is provided with a coaxial fan, the fan rotates along with the rotor when the motor rotor rotates, and meanwhile, an air duct is needed to conduct cooling air conducted by the fan into an axial ventilation channel of the rotor so as to achieve the purpose of cooling the rotor.
Based on the circumstances, the utility model provides a special air duct of permanent-magnet machine rotor can effectively solve above problem.
SUMMERY OF THE UTILITY MODEL
To prior art's situation, for overcoming above defect, the utility model provides a special guide duct of permanent-magnet machine rotor, simple structure, reasonable in design has that the wind-guiding is effectual, and cooling efficiency is high, and the installation is firm reliable, advantages such as easy production.
The utility model discloses a following technical scheme realizes:
a special air duct for a permanent magnet motor rotor comprises a motor amplitude plate shaft, an amplitude plate fixedly connected with the motor amplitude plate shaft and a rotor fixedly connected with the amplitude plate, wherein an air duct is arranged on an extending part of the amplitude plate extending out of one end of the rotor, and a single-side large fan fixedly connected with the motor amplitude plate shaft is arranged at one end, far away from the amplitude plate, of the air duct.
By the preferred technical scheme, the air guide cylinder is integrally welded with the extending part of the amplitude plate, so that the strength is sufficient, and the structure is simple and firm; one end of the air duct is communicated with the inside of the rotor, the other end of the air duct is communicated with the large fan on one side, and the air can be almost completely blown into the mutual gap of the air guide plates.
According to the above technical solution, as a further preferable technical solution of the above technical solution, an inner wall of the air guide duct is fixedly connected with the extension portion through an annular plate.
Through the preferred technical scheme, the air guide cylinder can be fixedly connected with the extending part of the web plate better due to the arrangement of the annular plate, the installation is firm and reliable, and the stability is high.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the large single-side fan has a double-layer structure, a plurality of air guide channels are arranged at intervals between the double-layer structure through an air guide plate, and the air guide channels are all communicated with the air guide cylinder.
Through above-mentioned preferred technical scheme, the aviation baffle can set up the interval between the bilayer structure of big fan of unilateral into a plurality of wind-guiding passageways, helps the cooling wind circulation in the rotor like this, improves the air volume of the effective cooling wind way of motor greatly, has reduced the amount of wind loss.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the large single-side fan and the air duct are both trumpet-shaped.
Through above-mentioned preferred technical scheme, big fan of unilateral and guide duct all are the loudspeaker form, can improve the air volume of the effective cooling wind path of motor greatly.
According to the above aspect, as a more preferable aspect of the above aspect, a mounting gap is provided between the air guide duct and the rotor.
Through above-mentioned preferred technical scheme, have installation clearance between air duct and the rotor, be convenient for installation and dismantlement maintenance.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. the air duct is integrally welded, the strength is sufficient, and the air duct is welded with the extending part of the web after being installed on the extending part of the web, so that the structure is simple and firm.
2. Due to the arrangement of the large fan on the single side and the air guide cylinder, the ventilation quantity of the effective cooling air path of the motor can be greatly improved, and the air quantity loss is reduced.
3. The mechanism has low manufacturing cost and is suitable for large-area popularization.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;
fig. 3 is a partially enlarged schematic view of fig. 2 and a schematic view of an air path.
Reference numerals: 1-motor amplitude plate shaft, 2-amplitude plate, 3-rotor, 4-air duct, 5-unilateral large fan, 21-extension part, 41-annular plate and 51-air duct.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is given with reference to the accompanying examples, but it should be understood that the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The air duct dedicated to the permanent magnet motor rotor according to the present invention will be described in detail with reference to fig. 1 to 3.
Example 1:
referring to fig. 1 to 3, the air duct special for the permanent magnet motor rotor includes a motor spoke plate shaft 1, a spoke plate 2 fixedly connected with the motor spoke plate shaft 1, and a rotor 3 fixedly connected with the spoke plate 2, an air duct 4 is arranged on an extension portion 21 of the spoke plate 2 extending out of one end of the rotor 3, and a single-side large fan 5 fixedly connected with the motor spoke plate shaft 1 is arranged at one end of the air duct 4 far away from the spoke plate 2.
Further, in another embodiment, the inner wall of the air guiding duct 4 is fixedly connected with the extension 21 through an annular plate 41.
Further, in another embodiment, the single-side large fan 5 has a double-layer structure, the distance between the double-layer structure is set to be a plurality of air guiding channels at intervals by the air guiding plate 51, and the air guiding channels are all communicated with the air guiding cylinder 4. The inner layer structure of the large fan 5 on one side is welded with the motor spoke plate shaft 1.
Further, in another embodiment, the large single-side fan 5 and the air duct 4 are both trumpet-shaped.
Further, in another embodiment, there is a mounting gap between the air duct 4 and the rotor 3.
The large single-sided fan 5 guides the air in the air passage of the motor into the rotor 3 along the air passage direction of fig. 3, one end of the air guide tube 4 is connected to the outlet of the fan, a mounting gap is formed in the middle, and the other end of the air guide tube 4 blows almost all the air into the mutual gap of the air guide plates 51.
The utility model provides a special air duct of permanent-magnet machine rotor, simple structure, reasonable in design has that the wind-guiding is effectual, and cooling efficiency is high, and the installation is firm reliable, advantages such as easy production.
According to the utility model discloses a description and attached drawing, the technical personnel in the field make or use very easily the utility model relates to a special ventilating duct of permanent-magnet machine rotor to can produce the positive effect that the utility model discloses record.
Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above, only do the utility model discloses the embodiment of preferred, in addition, including gathering together the whole scheme in the rotor web clearance with rotor cooling wind path also should cover the utility model discloses an within the protection scope, all the basis the utility model discloses a technical entity is to any simple modification, the equivalent change of making of above embodiment, all fall into within the protection scope of the utility model.
Claims (5)
1. The utility model provides a special air duct of permanent-magnet machine rotor, including motor spoke plate axle (1), and with motor spoke plate axle (1) fixed connection's spoke plate (2), and with spoke plate (2) fixed connection's rotor (3), its characterized in that: an air duct (4) is arranged on an extending part (21) of the amplitude plate (2) extending out of one end of the rotor (3), and a single-side large fan (5) fixedly connected with the motor amplitude plate shaft (1) is arranged at one end, far away from the amplitude plate (2), of the air duct (4).
2. The special air duct of the permanent magnet motor rotor according to claim 1, characterized in that: the inner wall of the air duct (4) is fixedly connected with the extension part (21) through an annular plate (41).
3. The special air duct of the permanent magnet motor rotor according to claim 1, characterized in that: the large fan (5) on one side is of a double-layer structure, the distance between the double-layer structure is set into a plurality of air guide channels at intervals through the air guide plate (51), and the air guide channels are communicated with the air guide cylinder (4).
4. The special air duct of the permanent magnet motor rotor according to claim 1, characterized in that: the large fan (5) on the single side and the air guide cylinder (4) are both trumpet-shaped.
5. The special air duct of the permanent magnet motor rotor according to claim 1, characterized in that: an installation gap is formed between the air duct (4) and the rotor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020327616.0U CN212258692U (en) | 2020-03-17 | 2020-03-17 | Special air duct for permanent magnet motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020327616.0U CN212258692U (en) | 2020-03-17 | 2020-03-17 | Special air duct for permanent magnet motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212258692U true CN212258692U (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020327616.0U Active CN212258692U (en) | 2020-03-17 | 2020-03-17 | Special air duct for permanent magnet motor rotor |
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| Country | Link |
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| CN (1) | CN212258692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115833483A (en) * | 2022-12-22 | 2023-03-21 | 佳木斯电机股份有限公司 | Centrifugal fan structure of mixed flow ventilation motor |
-
2020
- 2020-03-17 CN CN202020327616.0U patent/CN212258692U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115833483A (en) * | 2022-12-22 | 2023-03-21 | 佳木斯电机股份有限公司 | Centrifugal fan structure of mixed flow ventilation motor |
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