CN220022574U - Outer rotor motor structure - Google Patents
Outer rotor motor structure Download PDFInfo
- Publication number
- CN220022574U CN220022574U CN202321271044.9U CN202321271044U CN220022574U CN 220022574 U CN220022574 U CN 220022574U CN 202321271044 U CN202321271044 U CN 202321271044U CN 220022574 U CN220022574 U CN 220022574U
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- flange
- stator
- cover plate
- motor structure
- boss
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 230000005855 radiation Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 210000005056 cell body Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of motor structures, in particular to an outer rotor motor structure which comprises a stator, a rotor, a spline shaft, a first flange, a shell and a cover plate, wherein the rotor is sleeved on the outer peripheral side of the stator. During installation, the rotor is sleeved on the outer side of the stator, the stator is inserted in the second through hole to enable the stator to be installed with the cover plate, the first flange is installed with the shell after the shell is installed with the cover plate to enable the spline shaft to pass through the first through hole, and finally the spline shaft and the first flange are connected with equipment.
Description
Technical Field
The utility model relates to the technical field of motor structures, in particular to an outer rotor motor structure.
Background
The outer rotor motor is a motor with a rotating shell and a fixed inner shaft, and is used in the field of high precision such as a flying car at present, the rotating speed is usually more than 10000r/min, and the test requirement is extremely high. The existing external rotor motor is usually fixed with equipment by adopting a base type mounting mode, but because the rotating speed of the external rotor motor is too high, the external rotor motor can normally operate only at an extremely high progress, and the neutral is poor by adopting the base type mounting mode, and the external rotor motor needs to be subjected to repeated centering test adjustment after being mounted, so that the time cost of tooling design is greatly wasted.
Disclosure of Invention
Based on the structure, the outer rotor motor structure with good centering performance is provided.
The technical scheme of the utility model is as follows: the outer rotor motor structure comprises a stator, a rotor, a spline shaft, a first flange, a shell and a cover plate, wherein the rotor is sleeved on the outer peripheral side of the stator, the rotor is arranged in the shell, and the first flange and the cover plate are respectively covered at two ends of the shell;
the first flange is provided with a first through hole, the spline shaft is fixed at one end of the stator and penetrates through the first through hole, the cover plate is provided with a first boss extending towards the direction where the stator is located, the first boss is provided with a second through hole, and the stator is inserted into the second through hole.
Optionally, the cover plate is provided with a second boss, a first groove body is formed in one end, close to the cover plate, of the shell, and the first groove body is installed corresponding to the second boss.
Optionally, a second groove body is formed at one end, close to the first flange, of the shell, a third boss is arranged at one end, close to the first flange, of the first flange, and the second groove body is installed corresponding to the third boss.
Optionally, the shell is provided with a plurality of heat dissipation holes in the circumferential direction.
Optionally, the connecting shaft further comprises a connecting shaft, the connecting shaft comprises a first extending part and a second extending part, the spline shaft comprises a flange part, the spline shaft is connected with the stator through the flange part, the extending direction of the first extending part is different from that of the second extending part, two ends of the first extending part are respectively inserted into the flange part and the stator, and the second extending part is abutted to the stator.
Optionally, the first flange includes a first countersunk thread portion extending from a side proximate to the cover plate to a side distal from the cover plate.
Optionally, the first flange includes second countersunk head screw thread portion, second countersunk head screw thread portion keep away from one side of apron is to being close to one side of apron extends, countersunk head bolt install in second countersunk head screw thread portion makes first flange with the casing is connected.
Compared with the prior art, the embodiment of the utility model has the following beneficial effects:
according to the outer rotor motor structure, when the outer rotor motor structure is installed, the rotor is sleeved on the outer side of the stator, the stator is inserted into the second through hole to enable the stator to be installed with the cover plate, the first flange is installed with the housing after the housing is installed with the cover plate to enable the spline shaft to penetrate through the first through hole, and finally the spline shaft is connected with equipment through the spline shaft and the first flange, on one hand, the integral direction is determined through the sequential arrangement of the first boss, the stator and the spline shaft, the first flange cannot be loosened in the installation process of the spline shaft, on the other hand, the first flange is connected with the equipment, when centering deviation occurs, each bolt of the first flange cannot be locked, and in the process of locking each bolt, the stator and the rotor are driven to be automatically centered and adjusted, so that centering accuracy after installation is greatly improved, and production efficiency is greatly improved.
Drawings
Fig. 1 is an exploded view of an outer rotor motor structure according to an embodiment of the present utility model.
Fig. 2 is a cross-sectional view of an outer rotor motor structure according to an embodiment of the present utility model.
Fig. 3 is a schematic structural view of a first flange of an outer rotor motor structure according to an embodiment of the present utility model.
Reference numerals illustrate:
100. an outer rotor motor structure,
1. the stator is provided with a plurality of slots,
2. the rotor is provided with a plurality of grooves,
3. a spline shaft, 31, a flange portion,
4. a first flange 41, a first through hole 42, a third boss 43, a first countersunk threaded portion 44, a second countersunk threaded portion,
5. a shell body, 51, a first groove body, 52, a second groove body, 53 and a heat dissipation hole,
6. cover plate 61, first boss 611, second through hole 62, second boss,
7. a connecting shaft 71, a first extension 72, a second extension.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like are used herein to describe various information, but such information should not be limited to these terms, which are merely used to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the utility model.
Referring to fig. 1 to 3, the present embodiment provides an outer rotor motor structure 100, which includes a stator 1, a rotor 2, a spline shaft 3, a first flange 4, a housing 5 and a cover plate 6, wherein the rotor 2 is sleeved on the outer periphery side of the stator 1, the rotor 2 is arranged in the housing 5, and the first flange 4 and the cover plate 6 are respectively covered on two ends of the housing 5. The first flange 4 is provided with a first through hole 41, the spline shaft 3 is fixed at one end of the stator 1 and penetrates through the first through hole 41, the cover plate 6 is provided with a first boss 61 extending towards the direction of the stator 1, the first boss 61 is provided with a second through hole 611, and the stator 1 is inserted into the second through hole 611. During installation, firstly, the rotor 2 is sleeved on the outer side of the stator 1, the stator 1 is inserted in the second through hole 611 to enable the stator 1 to be installed with the cover plate 6, after the shell 5 is installed with the cover plate 6, the first flange 4 is installed with the shell 5 to enable the spline shaft 3 to penetrate through the first through hole 41, and finally, the spline shaft 3 and the first flange 4 are connected with equipment, on one hand, the integral direction is determined through the sequential arrangement of the first boss 61, the stator 1 and the spline shaft 3, the first flange 4 cannot be loosened under the action of the spline shaft 3, on the other hand, the first flange 4 is connected with equipment, each bolt of the first flange 4 cannot be locked when centering deviation occurs, and the stator 1 and the rotor 2 are driven to be automatically centered and adjusted in the process of locking each bolt, so that centering accuracy after installation is greatly improved, and production efficiency is greatly improved.
Preferably, referring to fig. 1 to 3, in the present embodiment, the cover 6 is provided with a second boss 62, and one end of the housing 5 near the cover 6 is provided with a first groove 51, and the first groove 51 is installed corresponding to the second boss 62. The shell 5 is close to the one end of first flange 4 and has seted up the second cell body 52, and the one end that first flange 4 is close to first flange 4 is equipped with the third boss 42, and the second cell body 52 corresponds the installation with the third boss 42. The position accuracy of the installation of the cover plate 6 and the housing 5 can be heightened by correspondingly installing the first groove body 51 and the second boss 62, and the position accuracy of the housing 5 and the first flange 4 can be improved by correspondingly installing the second groove body 52 and the third boss 42, so that the limit effect on the stator 1 and the rotor 2 among the first flange 4, the housing 5 and the cover plate 6 is ensured, and the centering effect formed during the installation of the first flange 4 is improved.
Preferably, referring to fig. 1 and 3, in the present embodiment, the housing 5 is provided with a plurality of heat dissipation holes 53 along the circumferential direction thereof. Because stator 1 and rotor 2 locate in casing 5, holistic radiating effect is relatively poor, can reduce holistic temperature through louvre 53 in the in-process of using, reduces the emergence of overload condition.
Preferably, referring to fig. 2, in the present embodiment, the motor structure 100 of the outer rotor 2 further includes a connecting shaft 7, the connecting shaft 7 includes a first extension portion 71 and a second extension portion 72, the spline shaft 3 includes a flange portion 31, the spline shaft 3 is connected to the stator 1 through the flange portion 31, the extension direction of the first extension portion 71 is different from the extension direction of the second extension portion 72, two ends of the first extension portion 71 are respectively inserted into the flange portion 31 and the stator 1, and the second extension portion 72 is abutted to the stator 1. Since the spline is connected with the stator 1 through the flange portion 31, when the spline shaft 3 is not aligned with the stator 1, the bolts of the flange portion 31 cannot be mounted, thereby ensuring that the alignment of the spline shaft 3 with the stator 1 can be completed in the mounting process.
Preferably, referring to fig. 1 and 3, in the present embodiment, the first flange 4 includes a first countersunk thread portion 43, and the first countersunk thread portion 43 extends from a side close to the cover plate 6 to a side far from the cover plate 6. By connecting the first flange 4 with the cover plate 6 using countersunk screws, the countersunk screws act on the inner side walls of the first countersunk screw portions 43, and adjustment of the position of the first flange 4 can be formed in the process of installation, so that centering accuracy is improved.
Preferably, referring to fig. 1 and 3, in the present embodiment, the first flange 4 includes a second countersunk threaded portion 44, and a side of the second countersunk threaded portion 44 away from the cover plate 6 extends toward a side close to the cover plate 6, and countersunk bolts are mounted on the second countersunk threaded portion 44 so that the first flange 4 is connected with the housing 5. By connecting the first flange 4 with the housing 5 using countersunk screws, the countersunk screws act with the inner side walls of the second countersunk screw portions 44, and the uniformity of the extending directions of the housing 5 and the first flange 4 can be improved.
In the motor structure 100 of the outer rotor 2 provided in this embodiment, during installation, the rotor 2 is sleeved on the outer side of the stator 1, the stator 1 is inserted in the second through hole 611 to enable the stator 1 to be installed with the cover plate 6, the first groove body 51 and the second boss 62 are correspondingly installed to enable the shell 5 to be installed with the cover plate 6, the first flange 4 and the shell 5 are installed to enable the spline shaft 3 to penetrate through the first through hole 41, the countersunk screw is used for installing the second countersunk screw portion 44 to enable the shell 5 to be connected with the first flange 4, and finally after the spline shaft 3 and the first flange 4 are connected with equipment, the countersunk screw is used for installing the first countersunk screw portion 43 to enable the motor structure 100 of the outer rotor 2 to be locked with the equipment.
The outer rotor 2 motor structure 100 of the embodiment has the following beneficial effects:
1. during installation, firstly, the rotor 2 is sleeved on the outer side of the stator 1, the stator 1 is inserted in the second through hole 611 to enable the stator 1 to be installed with the cover plate 6, after the shell 5 is installed with the cover plate 6, the first flange 4 is installed with the shell 5 to enable the spline shaft 3 to penetrate through the first through hole 41, and finally, the spline shaft 3 and the first flange 4 are connected with equipment, on one hand, the integral direction is determined through the sequential arrangement of the first boss 61, the stator 1 and the spline shaft 3, the first flange 4 cannot be loosened under the action of the spline shaft 3, on the other hand, the first flange 4 is connected with equipment, each bolt of the first flange 4 cannot be locked when centering deviation occurs, and the stator 1 and the rotor 2 are driven to be automatically centered and adjusted in the process of locking each bolt, so that centering accuracy after installation is greatly improved, and production efficiency is greatly improved.
2. Since the spline is connected with the stator 1 through the flange portion 31, when the spline shaft 3 is not aligned with the stator 1, the bolts of the flange portion 31 cannot be mounted, thereby ensuring that the alignment of the spline shaft 3 with the stator 1 can be completed in the mounting process.
3. By connecting the first flange 4 with the cover plate 6 using countersunk screws, the countersunk screws act on the inner side walls of the first countersunk screw portions 43, and adjustment of the position of the first flange 4 can be formed in the process of installation, so that centering accuracy is improved.
While the foregoing is directed to the preferred embodiments of the present utility model, it should be noted that modifications and variations could be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and variations are to be regarded as being within the scope of the utility model.
Claims (7)
1. The outer rotor motor structure is characterized by comprising a stator, a rotor, a spline shaft, a first flange, a shell and a cover plate, wherein the rotor is sleeved on the outer peripheral side of the stator, the rotor is arranged in the shell, and the first flange and the cover plate are respectively covered at two ends of the shell;
the first flange is provided with a first through hole, the spline shaft is fixed at one end of the stator and penetrates through the first through hole, the cover plate is provided with a first boss extending towards the direction where the stator is located, the first boss is provided with a second through hole, and the stator is inserted into the second through hole.
2. The outer rotor motor structure according to claim 1, wherein the cover plate is provided with a second boss, a first groove body is formed in one end, close to the cover plate, of the housing, and the first groove body is installed corresponding to the second boss.
3. The outer rotor motor structure according to claim 1, wherein a second groove body is formed in one end, close to the first flange, of the shell, a third boss is arranged in one end, close to the first flange, of the first flange, and the second groove body is installed corresponding to the third boss.
4. The external rotor motor structure according to claim 1, wherein the housing is provided with a plurality of heat radiation holes in a circumferential direction thereof.
5. The outer rotor motor structure according to claim 1, further comprising a connecting shaft including a first extending portion and a second extending portion, the spline shaft including a flange portion, and the spline shaft being connected to the stator through the flange portion, an extending direction of the first extending portion being different from an extending direction of the second extending portion, both ends of the first extending portion being inserted into the flange portion and the stator, respectively, and the second extending portion being abutted to the stator.
6. The external rotor motor structure of claim 1, wherein the first flange includes a first countersunk threaded portion extending from a side proximate to the cover plate to a side distal from the cover plate.
7. The external rotor motor structure according to claim 1, wherein the first flange includes a second countersunk threaded portion, a side of the second countersunk threaded portion away from the cover plate extends toward a side close to the cover plate, and countersunk bolts are installed on the second countersunk threaded portion so that the first flange is connected with the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321271044.9U CN220022574U (en) | 2023-05-24 | 2023-05-24 | Outer rotor motor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321271044.9U CN220022574U (en) | 2023-05-24 | 2023-05-24 | Outer rotor motor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220022574U true CN220022574U (en) | 2023-11-14 |
Family
ID=88673087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321271044.9U Active CN220022574U (en) | 2023-05-24 | 2023-05-24 | Outer rotor motor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220022574U (en) |
-
2023
- 2023-05-24 CN CN202321271044.9U patent/CN220022574U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |