CN216044554U - Fan blade driving structure - Google Patents
Fan blade driving structure Download PDFInfo
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- CN216044554U CN216044554U CN202122661879.2U CN202122661879U CN216044554U CN 216044554 U CN216044554 U CN 216044554U CN 202122661879 U CN202122661879 U CN 202122661879U CN 216044554 U CN216044554 U CN 216044554U
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- outer rotor
- fan blade
- pivot
- bearing
- installation part
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Abstract
The utility model discloses a fan blade driving structure, comprising: the motor comprises a pivot, an inner stator and an outer rotor, the pivot is hollow and is provided with a through hole, the inner stator is fixedly arranged on the pivot, and the outer rotor is movably connected with the pivot and is in clearance fit with the inner stator; the fan blade comprises an installation part and a plurality of blades which are distributed at intervals along the radial direction of the outer wall of the installation part, the installation part is hollow and is provided with a through hole, and the installation part is sleeved on the outer rotor; and the fixing cover is fixedly connected with the outer rotor and then fixes the mounting part on the outer rotor. The utility model has the advantages of improving the rotation stability of the fan blades, reducing the vibration and the noise of the fan blades and having novel structure.
Description
Technical Field
The utility model relates to the technical field of fans, in particular to a fan blade driving structure.
Background
The fan can drive the fan blades to rotate by using the motor so as to promote the air to circulate in an accelerated way, cool and relieve summer heat for users and circulate air. Most of existing fans support a fan head through a support rod, and fan blades and a motor for driving the fan blades to rotate are arranged in the fan head. The fan blade part is detachably fixed on a motor shaft, a shaft pin extending in the radial direction is arranged on the motor shaft, a corresponding clamping groove is formed in the fan blade, and the fan blade is driven to rotate through the shaft pin after the shaft pin is clamped into the clamping groove. A large gap is formed between the shaft hole of the fan blade and the motor shaft, so that the rotation of the fan blade is not stable enough, and the fan blade is easy to vibrate in the rotation process. Therefore, it is necessary to improve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a fan blade driving structure which has the advantages of improving the rotating stability of the fan blade, reducing the vibration and the noise of the fan blade and having a novel structure, and solves the problems in the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme: a fan blade driving structure comprising:
the motor comprises a pivot, an inner stator and an outer rotor, wherein the inner stator is fixedly arranged on the pivot, and the outer rotor is movably connected with the pivot and is in clearance fit with the inner stator;
the fan blade comprises an installation part and a plurality of blades which are distributed at intervals along the radial direction of the outer wall of the installation part, the installation part is hollow and is provided with a through hole, and the installation part is sleeved on the outer rotor;
and the fixing cover is fixedly connected with the outer rotor and then fixes the mounting part on the outer rotor.
Preferably, a plurality of pin holes are formed in the mounting portion at intervals along the radial direction, a plurality of fixing portions are formed in the outer wall of the outer rotor at intervals along the radial direction, the fixing portions correspond to the pin holes in position, shape and number, and the fixing portions are provided with pins which are tightly matched with the pin holes.
Preferably, the outer rotor and the fixed cover are both provided with threads, a step is arranged in the installation part, and the fixed cover is connected with the outer rotor in a butting mode after being connected with the outer rotor through the threads.
Preferably, the motor further includes a first bearing, a second bearing, a fixing frame, a first end cover and a second end cover, the first bearing and the second bearing are both sleeved on the pivot, the first bearing and the second bearing are respectively located on two sides of the inner stator, the fixing frame is fixedly connected with the outer rotor, the fixing frame is slidably connected with the pivot through the first bearing, the outer rotor is slidably connected with the pivot through the second bearing, the first end cover and the second end cover are both provided with through holes, and the first end cover and the second end cover are respectively located at two ends of the pivot.
Compared with the prior art, the utility model has the following beneficial effects:
in the utility model, the fan blade is sleeved on the outer rotor of the motor, and the fan blade is pressed between the motor and the fixed cover by the fixed cover so as to fix the fan blade, so that the fan blade is prevented from vibrating when rotating, and the stability of the fan blade is improved; in a further embodiment of the utility model, the fan blade is fixedly connected with the outer rotor of the motor through the pin hole and the pin, the position of the fan blade is limited, the fan blade is prevented from rotating radially relative to the motor, meanwhile, the fixing cover is connected with the outer rotor through the threads, and the radial rotating force of the fixing cover is converted into axial pressure through the threads in the connection process, so that the fan blade is further fixed, and the effects of improving the rotating stability of the fan blade and reducing the vibration and noise of the fan blade are achieved.
Drawings
FIG. 1 is a schematic structural view of a fan blade driving structure according to the present invention;
FIG. 2 is a schematic structural view of the motor of the present invention;
FIG. 3 is a schematic view of a fan blade according to the present invention;
fig. 4 is a schematic sectional view of the motor of the present invention.
The reference numerals and names in the figures are as follows:
1. a motor; 11. a pivot; 12. an inner stator; 13. an outer rotor; 131. a fixed part; 132. a pin; 133. a first bearing; 134. a second bearing; 135. a fixed mount; 136. a first end cap; 137. a second end cap; 2. a fan blade; 21. an installation part; 211. a pin hole; 212. a step; 22. a blade; 3. and (5) fixing the cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, according to an embodiment of the present invention, a fan blade driving structure includes:
the motor 1 comprises a pivot 11, an inner stator 12 and an outer rotor 13, wherein the inner stator 12 is fixedly arranged on the pivot 11, and the outer rotor 13 is movably connected with the pivot 11 and is in clearance fit with the inner stator 12;
the fan blade 2 comprises an installation part 21 and a plurality of blades 22 which are distributed at intervals along the radial direction of the outer wall of the installation part 21, the installation part 21 is hollow and is provided with a through hole, and the installation part 21 is sleeved on the outer rotor 13;
and the fixing cover 3 is fixedly connected with the outer rotor 13 and then fixes the mounting part 21 on the outer rotor 13.
Referring to fig. 2 to 3, more specifically, a plurality of pin holes 211 are radially disposed in the mounting portion 21 at intervals, a plurality of fixing portions 131 are radially disposed on an outer wall of the outer rotor 13 at intervals, the positions, shapes and numbers of the fixing portions 131 correspond to those of the pin holes 211, and each of the fixing portions 131 is provided with a pin 132, the pin 132 is tightly fitted to the pin hole 211, the pin 132 limits the position of the fan blade 2, so as to prevent the fan blade 2 from radially rotating relative to the outer rotor 13, and improve the stability of the fan blade 2 during rotation.
More specifically, outer rotor 13 and fixed lid 3 all are equipped with the screw thread, be equipped with step 212 in the installation department 21, fixed lid 3 is connected with outer rotor 13 through conflict with step 212 after the threaded connection, and the screw thread can be changeed into the rotatory power when fixed lid 3 rotates to outer rotor 13 axial pressure, further fastens flabellum 2, improves the stability of flabellum 2.
Referring to fig. 4, more specifically, the motor 1 further includes a first bearing 133, a second bearing 134, a fixing frame 135, a first end cover 136 and a second end cover 137, the first bearing 133 and the second bearing 134 are both sleeved on the pivot 11, the first bearing 133 and the second bearing 134 are respectively located at two sides of the inner stator 12, the fixing frame 135 is fixedly connected with the outer rotor 13, the fixing frame 135 is slidably connected with the pivot 11 through the first bearing 133, the outer rotor 13 is slidably connected with the pivot 11 through the second bearing 134, the first end cover 136 and the second end cover 137 are both provided with through holes, and the first end cover 136 and the second end cover 137 are respectively located at two ends of the pivot 11.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. A fan blade drive structure, comprising:
the motor (1), the said motor (1) includes pivot (11), inner stator (12) and outer rotor (13), the said inner stator (12) is fixed on the said pivot (11), the said outer rotor (13) is connected with pivot (11) movably, and cooperate with inner stator (12) interval;
the fan blade (2) comprises an installation part (21) and a plurality of blades (22) which are distributed along the outer wall of the installation part (21) at intervals in the radial direction, the installation part (21) is hollow and is provided with a through hole, and the installation part (21) is sleeved on the outer rotor (13);
and the fixing cover (3) is fixedly connected with the outer rotor (13) and then fixes the mounting part (21) on the outer rotor (13).
2. The fan blade driving structure according to claim 1, wherein: the mounting part (21) is internally provided with a plurality of pin holes (211) at intervals along the radial direction, the outer wall of the outer rotor (13) is provided with a plurality of fixing parts (131) at intervals along the radial direction, the fixing parts (131) correspond to the pin holes (211) in position, shape and quantity, the fixing parts (131) are provided with pins (132), and the pins (132) are tightly matched with the pin holes (211).
3. The fan blade driving structure according to claim 1, wherein: the outer rotor (13) and the fixed cover (3) are both provided with threads, a step (212) is arranged in the mounting portion (21), and the fixed cover (3) is connected with the outer rotor (13) in a butting mode through the threads and then is connected with the step (212) in a butting mode.
4. A fan blade driving structure according to any one of claims 1 to 3, wherein: the motor (1) also comprises a first bearing (133), a second bearing (134), a fixed frame (135), a first end cover (136) and a second end cover (137), the first bearing (133) and the second bearing (134) are sleeved on the pivot (11), the first bearing (133) and the second bearing (134) are respectively positioned at two sides of the inner stator (12), the fixed frame (135) is fixedly connected with the outer rotor (13), and the fixed frame (135) is connected with the pivot (11) in a sliding way through the first bearing (133), the outer rotor (13) is connected with the pivot (11) in a sliding way through the second bearing (134), the first end cover (136) and the second end cover (137) are both provided with through holes, and the first end cover (136) and the second end cover (137) are respectively arranged at two ends of the pivot (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122661879.2U CN216044554U (en) | 2021-11-02 | 2021-11-02 | Fan blade driving structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122661879.2U CN216044554U (en) | 2021-11-02 | 2021-11-02 | Fan blade driving structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216044554U true CN216044554U (en) | 2022-03-15 |
Family
ID=80550618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122661879.2U Active CN216044554U (en) | 2021-11-02 | 2021-11-02 | Fan blade driving structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216044554U (en) |
-
2021
- 2021-11-02 CN CN202122661879.2U patent/CN216044554U/en active Active
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