CN220325387U - Special external rotor brushless motor of electronic fan - Google Patents
Special external rotor brushless motor of electronic fan Download PDFInfo
- Publication number
- CN220325387U CN220325387U CN202321055558.0U CN202321055558U CN220325387U CN 220325387 U CN220325387 U CN 220325387U CN 202321055558 U CN202321055558 U CN 202321055558U CN 220325387 U CN220325387 U CN 220325387U
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- CN
- China
- Prior art keywords
- output shaft
- brushless motor
- electronic fan
- end cover
- external rotor
- 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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- 239000000428 dust Substances 0.000 claims abstract description 27
- 230000017525 heat dissipation Effects 0.000 claims abstract description 20
- 230000002146 bilateral effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 241000883990 Flabellum Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a special outer rotor brushless motor for an electronic fan, which comprises a rotor shell, wherein end covers are arranged on two sides of the rotor shell, a bearing is arranged on one side wall of the end cover, an output shaft is arranged in the bearing, an inner stator is arranged on the outer side of the output shaft, a heat dissipation cavity is arranged on one side wall of the end cover at equal intervals, a dust screen is arranged in the heat dissipation cavity, a shaft sleeve is arranged on the outer side wall of the output shaft, connecting plates are symmetrically arranged on the upper side and the lower side of the shaft sleeve, and a hairbrush is arranged on one side wall of each connecting plate. The beneficial effects are that: according to the utility model, the shaft sleeve, the connecting plate and the hairbrush are arranged, so that the shaft sleeve rotates along with the output shaft in the rotation process of the output shaft, and the hairbrush can automatically clean attached dust of the dust screen in the rotation process of the shaft sleeve, so that the heat dissipation effect of the device is ensured, the practicability of the device is improved, and the service life of the device is prolonged.
Description
Technical Field
The utility model relates to the technical field of external rotor brushless motors, in particular to a special external rotor brushless motor for an electronic fan.
Background
The external rotor motor is a motor, has simple structure, small axial size and high specific power, and is required to be driven to rotate by providing power for the external rotor brushless motor in the working process of the electronic fan.
The special external rotor brushless motor of current electronic fan dispels the heat to the motor inside through the heat dissipation chamber in the use to prevent dust to its inside through the dust screen, this mode can reach certain radiating effect, but along with the increase of live time, dust screen surface can adhere to a large amount of dust, and the device itself can't clear up it simultaneously, and then influences the radiating effect of device, reduces the device practicality.
Disclosure of Invention
First, the technical problem to be solved
The utility model aims to solve the technical problem of the prior art, and provides an external rotor brushless motor special for an electronic fan, which can automatically clean dust and ensure the heat dissipation effect of the device.
(II) technical scheme
The utility model is realized by the following technical scheme: the utility model provides a special outer rotor brushless motor for an electronic fan, which comprises a rotor shell, wherein end covers are arranged on two sides of the rotor shell, a bearing is arranged on one side wall of the end cover, an output shaft is arranged in the bearing, an inner stator is arranged on the outer side of the output shaft, radiating cavities are arranged on one side wall of the end cover at equal intervals, dust screens are arranged in the radiating cavities, shaft sleeves are arranged on the outer side wall of the output shaft, connecting plates are symmetrically arranged on the upper side and the lower side of each shaft sleeve, and brushes are arranged on one side wall of each connecting plate.
Further, the end cover is connected with the rotor shell through a screw, and the bearing is connected with the end cover through a bolt.
By adopting the technical scheme, the bearing can limit and fix the output shaft.
Further, the output shaft penetrates through the bearing, and the other end of the output shaft is rotationally connected with the end cover.
Through adopting above-mentioned technical scheme, the output shaft links to each other with the flabellum of electronic fan, and then drives its rotation, makes its work.
Further, the output shaft penetrates the inner stator.
Through adopting above-mentioned technical scheme, will interior stator setting is inside, the rotor housing sets up in the outside, makes the device be external rotor brushless motor.
Further, the heat dissipation cavity is formed on the end cover, and the dustproof net is connected with the heat dissipation cavity through screws.
Through adopting above-mentioned technical scheme, the heat that produces in the device working process passes through the heat dissipation chamber discharges, the dust screen is dustproof to the device inside.
Further, the shaft sleeve is connected with the output shaft through a screw, and the connecting plate is connected with the shaft sleeve through a screw.
By adopting the technical scheme, the shaft sleeve also rotates along with the output shaft in the rotation process.
Further, the brush is connected with the connecting plate through screws.
Through adopting above-mentioned technical scheme, and be in the axle sleeve rotates the in-process, the brush can with the attached dust of dust screen carries out automatic clearance, and then guarantees the radiating effect of device, improves device practicality and life.
(III) beneficial effects
Compared with the prior art, the utility model has the following beneficial effects:
in order to solve the problems that the existing external rotor brushless motor special for the electronic fan dissipates heat inside the motor through a heat dissipation cavity and is dustproof through a dustproof net in the use process, a large amount of dust can be attached to the surface of the dustproof net along with the increase of the use time, and meanwhile, the device cannot clean the dust, so that the heat dissipation effect of the device is affected, and the practicability of the device is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an external rotor brushless motor special for an electronic fan according to the present utility model;
fig. 2 is a front cross-sectional view of an external rotor brushless motor for an electronic fan according to the present utility model;
fig. 3 is a right side view of an external rotor brushless motor for an electronic fan according to the present utility model.
The reference numerals are explained as follows:
1. an end cap; 2. a rotor housing; 3. a bearing; 4. a dust screen; 5. a brush; 6. a connecting plate; 7. an output shaft; 8. a shaft sleeve; 9. a heat dissipation cavity; 10. an inner stator.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1-3, an external rotor brushless motor special for an electronic fan in this embodiment includes a rotor housing 2, end covers 1 are installed on two sides of the rotor housing 2, a bearing 3 is installed on one side wall of the end cover 1, the bearing 3 can limit and fix an output shaft 7, an output shaft 7 is installed in the bearing 3, the output shaft 7 is connected with blades of the electronic fan and further drives the blades to rotate, so that the electronic fan works, an internal stator 10 is installed on the outer side of the output shaft 7, the internal stator 10 is arranged inside the rotor housing 2, the rotor housing 2 is arranged outside, the external rotor brushless motor is arranged, a heat dissipation cavity 9 is arranged on one side wall of the end cover 1 at equal intervals, a dust screen 4 is installed in the heat dissipation cavity 9, heat generated in the working process of the device is discharged through the heat dissipation cavity 9, the dust screen 4 is used for preventing dust inside the device, a shaft sleeve 8 is arranged on the outer side wall of the output shaft 7, connecting plates 6 are symmetrically arranged on the upper side and lower sides of the shaft sleeve 8, brushes 5 are installed on one side wall of the connecting plates 6, the shaft 8 also rotate along with the rotation of the output shaft 7, in the rotation process of the output shaft 7, the brushes 5 can automatically clean dust attached to the dust of the dust screen 4 in the rotation process of the rotation of the shaft 8.
As shown in fig. 1 to 3, in the present embodiment, the end cover 1 is connected to the rotor housing 2 by a screw, the bearing 3 is connected to the end cover 1 by a bolt, the output shaft 7 penetrates the bearing 3, the other end of the output shaft 7 is rotatably connected to the end cover 1, and the output shaft 7 penetrates the inner stator 10.
As shown in fig. 1 to 3, in this embodiment, a heat dissipation cavity 9 is formed on an end cover 1, a dust screen 4 is connected with the heat dissipation cavity 9 by screws, a shaft sleeve 8 is connected with an output shaft 7 by screws, a connecting plate 6 is connected with the shaft sleeve 8 by screws, and a brush 5 is connected with the connecting plate 6 by screws.
The specific implementation process of this embodiment is as follows: when the device is used, the output shaft 7 is connected with the fan blade of the electronic fan, the external power supply is connected, the output shaft 7 in the motor drives the motor to rotate so as to enable the motor to work, heat generated in the working process of the device is discharged through the heat dissipation cavity 9 in the using process of the device, the dust screen 4 is used for preventing dust inside the device, the shaft sleeve 8 also rotates along with the output shaft 7 in the rotating process of the output shaft 7, and the brush 5 can automatically clean attached dust of the dust screen 4 in the rotating process of the shaft sleeve 8, so that the heat dissipation effect of the device is guaranteed.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. An external rotor brushless motor special for an electronic fan is characterized in that: including rotor housing (2), end cover (1) is all installed to rotor housing (2) both sides, install bearing (3) on end cover (1) lateral wall, install output shaft (7) in bearing (3), stator (10) in output shaft (7) outside is installed, an end cover (1) lateral wall equidistant is provided with heat dissipation chamber (9), install dust screen (4) in heat dissipation chamber (9), be provided with axle sleeve (8) on output shaft (7) lateral wall, bilateral symmetry is provided with connecting plate (6) about axle sleeve (8), brush (5) are installed on connecting plate (6) lateral wall.
2. The external rotor brushless motor for an electronic fan as claimed in claim 1, wherein: the end cover (1) is connected with the rotor shell (2) through bolts, and the bearing (3) is connected with the end cover (1) through bolts.
3. The external rotor brushless motor for an electronic fan as claimed in claim 1, wherein: the output shaft (7) penetrates through the bearing (3), and the other end of the output shaft (7) is rotationally connected with the end cover (1).
4. The external rotor brushless motor for an electronic fan as claimed in claim 1, wherein: the output shaft (7) penetrates the inner stator (10).
5. The external rotor brushless motor for an electronic fan as claimed in claim 1, wherein: the radiating cavity (9) is formed on the end cover (1), and the dustproof net (4) is connected with the radiating cavity (9) through screws.
6. The external rotor brushless motor for an electronic fan as claimed in claim 1, wherein: the shaft sleeve (8) is connected with the output shaft (7) through a screw, and the connecting plate (6) is connected with the shaft sleeve (8) through a screw.
7. The external rotor brushless motor for an electronic fan as claimed in claim 1, wherein: the hairbrush (5) is connected with the connecting plate (6) through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321055558.0U CN220325387U (en) | 2023-05-06 | 2023-05-06 | Special external rotor brushless motor of electronic fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321055558.0U CN220325387U (en) | 2023-05-06 | 2023-05-06 | Special external rotor brushless motor of electronic fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220325387U true CN220325387U (en) | 2024-01-09 |
Family
ID=89413335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321055558.0U Active CN220325387U (en) | 2023-05-06 | 2023-05-06 | Special external rotor brushless motor of electronic fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220325387U (en) |
-
2023
- 2023-05-06 CN CN202321055558.0U patent/CN220325387U/en active Active
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