CN218041154U - Brushless motor with small size - Google Patents
Brushless motor with small size Download PDFInfo
- Publication number
- CN218041154U CN218041154U CN202222117313.8U CN202222117313U CN218041154U CN 218041154 U CN218041154 U CN 218041154U CN 202222117313 U CN202222117313 U CN 202222117313U CN 218041154 U CN218041154 U CN 218041154U
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- magnetic encoder
- motor
- induction magnet
- rotating shaft
- magnet ring
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- 230000006698 induction Effects 0.000 claims abstract description 31
- 238000009434 installation Methods 0.000 claims description 4
- 230000010354 integration Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a brushless motor with small volume, which comprises a motor rotor; the rotating shaft is arranged at the lower end of the motor rotor; the motor stator is provided with a through hole matched with the rotating shaft, and the rotating shaft penetrates through the through hole and extends out of the lower part of the motor stator; the lock shaft magnetic encoder induction magnet ring can be detachably connected with the lower end of the rotating shaft; and the magnetic encoder is arranged at the lower part of the motor stator. The utility model discloses a set up lock axle magnetic encoder induction magnet ring, make it can the spiral locking in the pivot, unite two into one the function of motor lock axle ring and magnetic encoder induction magnet's function for thereby the motor can subtract the reduction that this part of lock axle ring motor volume can be further.
Description
Technical Field
The utility model relates to the technical field of motors, concretely relates to small brushless motor.
Background
With the development of motors and control technologies, traditional machinery and transmission equipment are gradually replaced by electric drive, and have a trend of small volume and high power density, and the motors with high power density have large-scale application and requirements in the fields of industrial control, security protection, home furnishing and the like; the motor with high integration and high power density is an urgent need, however, the existing motor still has room for improvement in volume control.
The existing driving motor needs to additionally install a magnetic encoder induction magnet at the motor shaft end to obtain the steering and rotating speed signals of a motor rotor, so that the control of a controller on the motor is realized, and the magnetic encoder induction magnet at the bottom of the shaft needs to additionally occupy the axial space at the bottom of the shaft.
Disclosure of Invention
The utility model discloses the problem that will solve is: the utility model provides a small brushless motor, through setting up lock axle magnetic encoder induction magnet ring, makes it can the spiral locking in the pivot, unites two into one the function of motor lock axle ring and magnetic encoder induction magnet's function for thereby the motor can subtract the reduction that this part of lock axle ring can be further.
The utility model discloses a solve the technical scheme that above-mentioned problem provided and do: a brushless motor of small size comprises
A motor rotor;
the rotating shaft is arranged at the lower end of the motor rotor;
the motor stator is provided with a through hole matched with the rotating shaft, and the rotating shaft penetrates through the through hole and extends out of the lower part of the motor stator;
the lock shaft magnetic encoder induction magnet ring can be detachably connected with the lower end of the rotating shaft;
and the magnetic encoder is arranged at the lower part of the motor stator.
Preferably, an external thread is arranged on the outer circumferential surface of the lower end of the rotating shaft, and an internal thread matched with the external thread is arranged in an annular inner hole of the induction magnet ring of the shaft locking magnetic encoder.
Preferably, the upper end face of the magnetic encoder is provided with a groove matched with the lock shaft magnetic encoder induction magnet ring.
Preferably, a bearing matched with the rotating shaft is installed in the through hole.
Preferably, the bearing has two.
Preferably, the upper end face of the magnetic encoder is provided with four connecting installation seats, and one ends, far away from the magnetic encoder, of the four connecting installation seats are connected with the lower portion of the motor stator.
Preferably, a pair of N/S magnetic poles are uniformly arranged in the radial direction of the lock shaft magnetic encoder induction magnet ring, so that the lock shaft magnetic encoder induction magnet ring can be used as an induction magnet of a magnetic encoder.
Compared with the prior art, the utility model has the advantages that: the utility model discloses a carry out functional integration with lock axle ring and magnetic encoder induction magnet, process into the screw thread shape with magnetic encoder induction magnet's hole and form lock axle magnetic encoder induction magnet ring, make it can the spiral locking in the pivot, unite two into one the function of motor lock axle ring and magnetic encoder induction magnet's function for thereby the motor can subtract the reduction that this part of lock axle ring can be further.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention.
Fig. 1 is a schematic diagram of the explosion structure of the present invention;
fig. 2 is a cross-sectional view of the present invention.
The attached drawings are marked as follows: 1. motor rotor, 2, pivot, 3, motor stator, 4, bearing, 5, magnetic encoder, 6, lock axle magnetic encoder induction magnet ring, 7, connection mount pad, 8, annular hole, 9, external screw thread, 10, through-hole, 11, recess.
Detailed Description
The following detailed description will be provided with reference to the accompanying drawings and examples, so that how to implement the technical means of the present invention to solve the technical problems and achieve the technical effects can be fully understood and implemented.
In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected with each other or connected with each other through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
The embodiment of the utility model is shown in the attached drawing, a brushless motor with small volume, which comprises
A motor rotor 1;
the rotating shaft 2 is arranged at the lower end of the motor rotor 1;
the motor stator 3 is provided with a through hole 10 matched with the rotating shaft 2, and the rotating shaft 2 penetrates through the through hole 10 and extends out of the lower part of the motor stator 3;
the lock shaft magnetic encoder induction magnet ring 6 is detachably connected with the lower end of the rotating shaft 2;
and the magnetic encoder 5 is arranged at the lower part of the motor stator 3.
As a further improvement of this embodiment, an external thread 9 is provided on the outer circumferential surface of the lower end of the rotating shaft 2, and an internal thread matching with the external thread 9 is provided on the annular inner hole 8 of the shaft-locking magnetic encoder induction magnet ring 6. The detachable connection between the lock shaft magnetic encoder induction magnet ring and the rotating shaft is realized through the matching of the internal thread and the external thread.
As a further improvement of this embodiment, the upper end face of the magnetic encoder 5 is provided with a groove 11 for matching with the lock shaft magnetic encoder induction magnet ring 6.
As a further improvement of this embodiment, a bearing 4 fitted to the rotating shaft 2 is installed in the through hole 10.
Further, the bearing 4 has two.
As a further improvement of this embodiment, the upper end face of the magnetic encoder 5 is provided with four connection mounting seats 7, and one end of the four connection mounting seats 7 far away from the magnetic encoder 5 is connected with the lower part of the motor stator 3.
As a further improvement of this embodiment, a pair of N/S magnetic poles is uniformly arranged in the radial direction of the lock shaft magnetic encoder induction magnet ring 6, so that it can be used as an induction magnet of the magnetic encoder 5.
The foregoing is illustrative of the preferred embodiments of the present invention only, and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to be changed. All changes which come within the scope of the independent claims of the invention are to be embraced within their scope.
Claims (7)
1. A brushless motor with small volume, characterized in that: comprises that
A motor rotor (1);
the rotating shaft (2) is arranged at the lower end of the motor rotor (1);
the motor stator (3) is provided with a through hole (10) matched with the rotating shaft (2), and the rotating shaft (2) penetrates through the through hole (10) and extends out of the lower part of the motor stator (3);
the lock shaft magnetic encoder induction magnet ring (6), the lock shaft magnetic encoder induction magnet ring (6) can be detachably connected with the lower end of the rotating shaft (2);
and the magnetic encoder (5) is arranged at the lower part of the motor stator (3).
2. A brushless electric machine of small size according to claim 1, wherein: and an external thread (9) is arranged on the outer circumferential surface of the lower end of the rotating shaft (2), and an internal thread matched with the external thread (9) is arranged in an annular inner hole (8) of the lock shaft magnetic encoder induction magnet ring (6).
3. A brushless, small-sized motor according to claim 1, wherein: the upper end face of the magnetic encoder (5) is provided with a groove (11) matched with the lock shaft magnetic encoder induction magnet ring (6).
4. A brushless, small-sized motor according to claim 1, wherein: and a bearing (4) matched with the rotating shaft (2) is arranged in the through hole (10).
5. A brushless electric machine of claim 4, further comprising: the number of the bearings (4) is two.
6. A brushless electric machine of small size according to claim 1, wherein: the upper end face of the magnetic encoder (5) is provided with four connecting installation seats (7), and one ends, far away from the magnetic encoder (5), of the four connecting installation seats (7) are connected with the lower portion of the motor stator (3).
7. A brushless electric machine of small size according to claim 1, wherein: a pair of N/S magnetic poles are uniformly arranged in the radial direction of the lock shaft magnetic encoder induction magnet ring (6), so that the lock shaft magnetic encoder induction magnet ring can be used as an induction magnet of the magnetic encoder (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222117313.8U CN218041154U (en) | 2022-08-12 | 2022-08-12 | Brushless motor with small size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222117313.8U CN218041154U (en) | 2022-08-12 | 2022-08-12 | Brushless motor with small size |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218041154U true CN218041154U (en) | 2022-12-13 |
Family
ID=84344729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222117313.8U Active CN218041154U (en) | 2022-08-12 | 2022-08-12 | Brushless motor with small size |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218041154U (en) |
-
2022
- 2022-08-12 CN CN202222117313.8U patent/CN218041154U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Manufacturing Center, Building D, No. 888, Tianxiang North Avenue, Nanchang High-tech Industrial Development Zone, Nanchang City, Jiangxi Province 330000 Patentee after: Nanchang Sanrui Intelligent Technology Co.,Ltd. Address before: Manufacturing Center, Building D, No. 888, Tianxiang North Avenue, Nanchang High-tech Industrial Development Zone, Nanchang City, Jiangxi Province 330000 Patentee before: Nanchang SanRui Intelligent Technology Co.,Ltd. |