CN221042489U - Outer rotor brushless motor - Google Patents
Outer rotor brushless motor Download PDFInfo
- Publication number
- CN221042489U CN221042489U CN202322370666.3U CN202322370666U CN221042489U CN 221042489 U CN221042489 U CN 221042489U CN 202322370666 U CN202322370666 U CN 202322370666U CN 221042489 U CN221042489 U CN 221042489U
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- brushless motor
- locking
- rotor brushless
- mounting base
- positioning
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- 230000008093 supporting effect Effects 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an outer rotor brushless motor, comprising: the mounting base is provided with a fixing plate through a threaded connection structure on two sides of the mounting base, and a bearing is arranged in the center of the fixing plate; the outer rotor brushless motor is characterized in that a stator shaft of the outer rotor brushless motor is fixed on an inner ring of a bearing through a connecting structure, and the threaded connecting structure comprises locking screws (4) arranged on a fixing plate (3) and locking structures arranged around a mounting base (1); the locking end of the locking screw (4) is in threaded connection with the locking structure around the mounting base (1). According to the utility model, the fixing plate can be firmly installed through the threaded connection structure and the fixing plate, so that the stability and reliability of the motor are improved.
Description
Technical Field
The utility model relates to a brushless motor, in particular to an external rotor brushless motor.
Background
In the prior art, an external rotor brushless motor is a common motor type, has the advantages of high efficiency, low noise, long service life and the like, and is widely applied to various fields. However, there are still some problems and challenges in the mounting and connection structure of the outer rotor brushless motor.
The traditional outer rotor brushless motor mounting structure usually adopts a bolt or thread connection mode, but the problem that the connection mode is easy to loosen exists, and particularly when the motor runs for a long time or is subjected to vibration impact, the bolt is easy to loosen, so that the stability and the reliability of the motor are reduced.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an external rotor brushless motor so as to solve the problem existing in the background technology.
The utility model discloses an external rotor brushless motor, which is realized by the following technical scheme that:
The mounting base, both sides of the mounting base are provided with a fixed plate through a threaded connection structure, and the center of the fixed plate is provided with a bearing;
The outer rotor brushless motor, the stator axle of outer rotor brushless motor is fixed in the inner circle of bearing through connection structure.
As an optimized technical scheme, the threaded connection structure comprises a locking screw arranged on the fixed plate and a locking structure arranged on the periphery of the mounting base; the locking end of the locking screw is in threaded connection with the locking structure around the mounting base.
As a preferable technical scheme, the connecting structure comprises a connecting key arranged on the stator shaft and a positioning structure arranged on the connecting key; the bearing inner ring is provided with a key slot corresponding to the connecting key, and when the stator shaft is inserted into the bearing, the connecting key is inserted into the key slot, so that the function of circumferential positioning is realized; the key groove is provided with a positioning hole, the positioning hole corresponds to the positioning structure in position, and the positioning of the connecting key and the key groove is realized through the positioning structure.
As the preferable technical scheme, the locking structure comprises a movable cavity and a locking nut, wherein the movable cavity and the locking nut are arranged on the periphery of the mounting base, the locking nut is arranged in the movable cavity in a guiding way, a compression spring is arranged between the upper part of the movable cavity and the locking nut, and the locking screw penetrates through the upper part of the movable cavity and is connected with the locking nut.
As an optimal technical scheme, the positioning structure comprises a spring groove and a positioning ball, wherein the spring groove and the positioning ball are arranged above the connecting key, the positioning ball is limited at the end part of the spring groove, and a spring is arranged between the positioning ball and the spring groove; the locating ball is clamped in the locating hole above the key slot under the extrusion action of the spring.
As the preferable technical scheme, the inboard backup pad that plays the supporting role that is provided with of fixed plate, and the lower terminal surface of backup pad contacts with the installation base.
The beneficial effects of the utility model are as follows:
1. According to the utility model, the fixing plate can be firmly installed through the threaded connection structure and the fixing plate, so that the stability and reliability of the motor are improved.
2. The locking structure can effectively fix the locking screw and prevent the locking screw from loosening.
3. The connecting key and the positioning structure in the connecting structure can realize circumferential positioning of the stator shaft and the bearing, and ensure normal operation of the motor.
3. The utility model can provide stable locking force through the movable cavity, the locking nut and the compression spring in the locking structure, and prevent the motor from loosening in the running process.
The arrangement of the supporting plate can provide additional support, and the structural strength and stability of the motor are enhanced
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic view of a bearing connection according to the present utility model;
FIG. 3 is a schematic view of a positioning structure according to the present utility model;
fig. 4 is a schematic view of a locking structure of the present utility model.
Detailed Description
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
As shown in fig. 1 to 2, an external rotor brushless motor of the present utility model includes:
The device comprises a mounting base 1, wherein fixing plates 3 are arranged on two sides of the mounting base 1 through threaded connection structures, and a bearing 14 is arranged in the center of each fixing plate;
the outer rotor brushless motor 2, and the stator shaft of the outer rotor brushless motor 2 is fixed to the inner ring of the bearing 14 by a connection structure.
In this embodiment, the threaded connection structure includes a locking screw 4 disposed on the fixing plate 3 and a locking structure disposed around the mounting base 1; the locking end of the locking screw 4 is in threaded connection with the locking structure around the mounting base 1.
As shown in fig. 3, the connection structure includes a connection key 8 provided on the stator shaft and a positioning structure provided on the connection key 8; the inner ring of the bearing 14 is provided with a key slot 9 corresponding to the connecting key 8, and when the stator shaft is inserted into the bearing 14, the connecting key 8 is inserted into the key slot 9, so that the function of circumferential positioning is realized; the key groove 9 is provided with a positioning hole, the positioning hole corresponds to the positioning structure in position, and the positioning of the connecting key 8 and the key groove 9 is realized through the positioning structure.
As shown in fig. 4, the locking structure comprises a movable cavity 5 and a locking nut 6 which are arranged around the installation base 1, the locking nut 6 is arranged in the movable cavity 5 in a guiding manner, a compression spring 7 is arranged between the upper portion of the movable cavity 5 and the locking nut 6, and the locking screw 4 penetrates through the upper portion of the movable cavity 5 and is connected with the locking nut 6.
In this embodiment, the positioning structure includes a spring groove 11 and a positioning ball 12 disposed above the connection key 8, the positioning ball 12 is disposed at the end of the spring groove 11 in a limiting manner, and a spring is disposed between the positioning ball 12 and the spring groove 11; the positioning ball 12 is clamped in a positioning hole arranged above the key slot 9 under the extrusion action of a spring.
In addition, the inboard backup pad 13 that plays the supporting role that is provided with of fixed plate 3, and the lower terminal surface of backup pad 13 contacts with installation base 1, can provide extra support through the setting of backup pad, reinforcing motor's structural strength and stability.
The working principle is as follows:
When the motor is electrified, the stator generates a rotating magnetic field, and the rotor starts to rotate through interaction of the magnetic field and the permanent magnets on the rotor; an outer rotor brushless motor on the rotor is fixed on an inner ring of the bearing through a connecting structure, so that the rotor can freely rotate;
the mounting base is provided with a fixing plate through a threaded connection structure, and the center of the fixing plate is provided with a bearing which plays a role in supporting the rotor; the stator shaft of the outer rotor brushless motor is fixed on the inner ring of the bearing through a connecting structure, so that the connection between the stator shaft and the bearing is ensured to be stable;
The threaded connection structure comprises a locking screw and a locking structure, the locking end of the locking screw is in threaded connection with the locking structure around the mounting base, and the firm connection between the mounting base and the fixing plate is ensured through the fixation of the locking screw;
The connecting structure comprises a connecting key and a positioning structure, the connecting key is arranged on the stator shaft, and the positioning structure is arranged on the connecting key; the inner ring of the bearing is provided with a key slot corresponding to the connecting key, and when the stator shaft is inserted into the bearing, the connecting key is inserted into the key slot, so that the function of circumferential positioning is realized; the positioning holes correspond to the positioning structures in position, and accurate positioning of the connecting key and the key groove is achieved through the positioning structures.
The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any changes or substitutions that do not undergo the inventive effort should be construed as falling within the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.
Claims (6)
1. An external rotor brushless motor, comprising:
The device comprises a mounting base (1), wherein both sides of the mounting base (1) are provided with a fixed plate (3) through a threaded connection structure, and the center of the fixed plate is provided with a bearing (14);
And the outer rotor brushless motor (2), wherein a stator shaft of the outer rotor brushless motor (2) is fixed on an inner ring of the bearing (14) through a connecting structure.
2. The external rotor brushless motor of claim 1, wherein: the threaded connection structure comprises a locking screw (4) arranged on the fixed plate (3) and a locking structure arranged around the mounting base (1); the locking end of the locking screw (4) is in threaded connection with the locking structure around the mounting base (1).
3. The external rotor brushless motor of claim 1, wherein: the connecting structure comprises a connecting key (8) arranged on the stator shaft and a positioning structure arranged on the connecting key (8); the inner ring of the bearing (14) is provided with a key slot (9) corresponding to the connecting key (8), and when the stator shaft is inserted into the bearing (14), the connecting key (8) is inserted into the key slot (9); and the key groove (9) is provided with a positioning hole, and the positioning hole corresponds to the positioning structure in position.
4. The external rotor brushless motor of claim 2, wherein: the locking structure comprises a movable cavity (5) and a locking nut (6) which are arranged around the mounting base (1), the locking nut (6) is arranged in the movable cavity (5) in a guiding mode, a compression spring (7) is arranged between the upper portion of the movable cavity (5) and the locking nut (6), and the locking screw (4) penetrates through the upper portion of the movable cavity (5) and is connected with the locking nut (6).
5. An external rotor brushless motor according to claim 3, wherein: the positioning structure comprises a spring groove (11) and a positioning ball (12) which are arranged above the connecting key (8), wherein the positioning ball (12) is limited at the end part of the spring groove (11), and a spring is arranged between the positioning ball (12) and the spring groove (11); the positioning ball (12) is clamped in a positioning hole above the key groove (9) under the extrusion action of the spring.
6. The external rotor brushless motor of claim 1, wherein: the inner side of the fixed plate (3) is provided with a supporting plate (13) with a supporting effect, and the lower end surface of the supporting plate (13) is contacted with the mounting base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322370666.3U CN221042489U (en) | 2023-09-01 | 2023-09-01 | Outer rotor brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322370666.3U CN221042489U (en) | 2023-09-01 | 2023-09-01 | Outer rotor brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221042489U true CN221042489U (en) | 2024-05-28 |
Family
ID=91171785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322370666.3U Active CN221042489U (en) | 2023-09-01 | 2023-09-01 | Outer rotor brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221042489U (en) |
-
2023
- 2023-09-01 CN CN202322370666.3U patent/CN221042489U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |