CN219499115U - Squirrel-cage asynchronous motor with return air cover - Google Patents
Squirrel-cage asynchronous motor with return air cover Download PDFInfo
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- CN219499115U CN219499115U CN202320736230.9U CN202320736230U CN219499115U CN 219499115 U CN219499115 U CN 219499115U CN 202320736230 U CN202320736230 U CN 202320736230U CN 219499115 U CN219499115 U CN 219499115U
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- squirrel
- asynchronous motor
- cage asynchronous
- return air
- cover
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Abstract
The utility model provides a squirrel-cage asynchronous motor with a return air cover, which comprises a squirrel-cage asynchronous motor, wherein a bolt hole is formed in a front end cover of the squirrel-cage asynchronous motor, the return air cover is arranged on the front end cover of the squirrel-cage asynchronous motor through a bolt, the return air cover comprises a circular side wall and a cover cap, a part of the side wall is sleeved on a part of a fan hot air duct of the squirrel-cage asynchronous motor, a return air inlet is formed in the center of the cover cap, the return air inlet is used for extending out of a shaft extension end of the squirrel-cage asynchronous motor, and a space formed between the cover cap and the other part of the side wall is a return air cooling space. The squirrel-cage asynchronous motor is started, the motor shaft rotates to drive the fan to rotate, the air generated by the fan enters the return air cooling space through the fan hot air channel, and the shaft extension end is further cooled on the basis of the original cooling motor shaft, so that the use effect is obvious.
Description
Technical Field
The utility model belongs to the technical field of asynchronous motors, and particularly relates to a squirrel-cage asynchronous motor with a return air cover.
Background
The cage type asynchronous motor external circulation air cooling mode mainly drives a fan by rotating a motor shaft to generate cooling air, the cooling air is returned through a fan cover, the motor is cooled through a fan hot air duct on a motor shell, the cooling mode is low in efficiency, the cooling effect of a non-shaft extension end of the motor is obvious, but due to design defects, the cooling air at the shaft extension end bearing position of the motor is difficult to blow, the temperature of the shaft extension end bearing is increased, and particularly, the motor with high rotating speed and high load is obvious.
Disclosure of Invention
In order to solve the problems in the background technology, the utility model provides a squirrel-cage asynchronous motor with a return air cover.
The technical scheme of the utility model is as follows:
the utility model provides a squirrel-cage asynchronous motor with return air cover, includes squirrel-cage asynchronous motor, processing has the bolt hole on squirrel-cage asynchronous motor's the front end housing, install the return air cover through the bolt on squirrel-cage asynchronous motor's the front end housing, the return air cover includes circular lateral wall and shroud, the partial cover of lateral wall is established on squirrel-cage asynchronous motor's partial fan hot air duct, the central point processing of shroud has the return air inlet, the return air inlet is used for squirrel-cage asynchronous motor's axle to stretch out, the space that forms between shroud and the other part of lateral wall is the return air cooling space.
Preferably, the side wall and the cover are integrally formed.
Preferably, the diameter of the air return opening is 50mm larger than the diameter of the shaft extension end.
Preferably, the diameter of the side wall is 5mm larger than that of the squirrel cage asynchronous motor.
Preferably, the cover is arc-shaped.
The beneficial effects of the utility model are as follows:
(1) The squirrel-cage asynchronous motor with the air return cover improves the self-fan cooling efficiency of the squirrel-cage asynchronous motor, reduces the temperature rise of the front bearing of the high-rotation-speed high-load motor, prolongs the service life of the bearing, reduces equipment faults and reduces the maintenance cost of unplanned shutdown.
(2) According to the squirrel-cage asynchronous motor with the air return cover, a part of the side wall is sleeved on the part of the fan hot air duct of the squirrel-cage asynchronous motor, the effect of maximizing air collection is achieved, and the cover is arc-shaped, so that cool air enters the air return cooling space through the fan hot air duct to reach the position of the air return opening and be buffered to the root of the most extending end of the shaft, and the temperature of the most extending end of the shaft can be reduced to the greatest extent.
Drawings
Other objects and attainments together with a more complete understanding of the utility model will become apparent and appreciated by referring to the following description taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic view of the structure after the part of the return air hood is removed.
Wherein the reference numerals are as follows: the device comprises a squirrel cage asynchronous motor 1, a front end cover 11, bolt holes 111, a return air cover 2, side walls 21, a cover 22, a fan hot air duct 12, a return air inlet 221, a shaft extension end 13 and bolts 3.
Detailed Description
The following detailed description is provided to enable those skilled in the art to better understand the technical scheme and advantages of the present utility model, and is not intended to limit the scope of the present utility model.
In the description of the present application, it should be noted that the terms "inner," "lower," and the like indicate the azimuth or positional relationship as follows: the use of the orientation or positional relationship shown in the drawings, or the orientation or positional relationship conventionally placed when the subject application is used, is merely for convenience of description and to simplify the description, and is not intended to indicate or imply that the apparatus or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the application.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the two components can be mechanically connected, can be directly connected or can be indirectly connected through an intermediate medium, and can be communicated with each other. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
The utility model provides a squirrel-cage asynchronous motor with return air cover, including squirrel-cage asynchronous motor 1, be processed on the front end housing 11 of squirrel-cage asynchronous motor 1 has bolt hole 111, install return air cover 2 through bolt 3 on the front end housing 11 of squirrel-cage asynchronous motor 1, return air cover 2 includes circular lateral wall 21 and shroud 22, the partial cover of lateral wall 21 is established on the partial fan hot air flue 12 of squirrel-cage asynchronous motor 1, shroud 22 is the slot form, the central point is processed and is had return air inlet 221, return air inlet 221 is used for the shaft extension 13 of squirrel-cage asynchronous motor 1 to stretch out, the space that forms between shroud 22 and the other part of lateral wall 21 is the return air cooling space; the return air hood 2 is suitable for a horizontal squirrel cage asynchronous motor, in the drawings, the feet of which are not shown in the drawings because they have no relevance to the technical solution.
Further, the side wall 21 is integrally formed with the cover 22;
the diameter of the air return opening 221 is 50mm larger than the diameter of the shaft extension end 13, and the diameter of the side wall 21 is 5mm larger than the diameter of the squirrel cage asynchronous motor 1.
The working principle of the utility model is as follows: the squirrel-cage asynchronous motor 1 is started, a motor shaft rotates to drive a fan to rotate, the wind generated by the fan enters a return air cooling space through a fan hot air duct 12, and the shaft extension end 13 is further cooled on the basis of the original cooling motor shaft, so that the use effect is obvious.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (5)
1. The utility model provides a squirrel-cage asynchronous motor with return air cover, includes squirrel-cage asynchronous motor, its characterized in that: the utility model discloses a squirrel-cage asynchronous motor, including squirrel-cage asynchronous motor's front end housing, the front end housing of squirrel-cage asynchronous motor is last to be processed has the bolt hole, install the return air cover through the bolt on the front end housing of squirrel-cage asynchronous motor, the return air cover includes circular lateral wall and shroud, the partial cover of lateral wall is established on squirrel-cage asynchronous motor's partial fan hot air duct, the central point of shroud puts the processing and has the return air inlet, the return air inlet is used for squirrel-cage asynchronous motor's axle to stretch out, the space that forms between shroud and the other part of lateral wall is the return air cooling space.
2. A squirrel-cage asynchronous motor with return air hood according to claim 1, characterized in that: the side wall and the cover are integrally formed.
3. A squirrel-cage asynchronous motor with return air hood according to claim 1, characterized in that: the diameter of the air return opening is 50mm larger than that of the shaft extension end.
4. A squirrel-cage asynchronous motor with return air hood according to claim 1, characterized in that: the diameter of the side wall is 5mm larger than that of the squirrel-cage asynchronous motor.
5. A squirrel-cage asynchronous motor with return air hood according to claim 1, characterized in that: the cover cap is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320736230.9U CN219499115U (en) | 2023-04-06 | 2023-04-06 | Squirrel-cage asynchronous motor with return air cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320736230.9U CN219499115U (en) | 2023-04-06 | 2023-04-06 | Squirrel-cage asynchronous motor with return air cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219499115U true CN219499115U (en) | 2023-08-08 |
Family
ID=87483199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320736230.9U Active CN219499115U (en) | 2023-04-06 | 2023-04-06 | Squirrel-cage asynchronous motor with return air cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219499115U (en) |
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2023
- 2023-04-06 CN CN202320736230.9U patent/CN219499115U/en active Active
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