CN114448147A - Automatic aligning laser radar outer rotor brushless motor - Google Patents
Automatic aligning laser radar outer rotor brushless motor Download PDFInfo
- Publication number
- CN114448147A CN114448147A CN202111645920.5A CN202111645920A CN114448147A CN 114448147 A CN114448147 A CN 114448147A CN 202111645920 A CN202111645920 A CN 202111645920A CN 114448147 A CN114448147 A CN 114448147A
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- China
- Prior art keywords
- rotor
- brushless motor
- aligning
- self
- shaft
- 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.)
- Pending
Links
- 101001045744 Sus scrofa Hepatocyte nuclear factor 1-beta Proteins 0.000 claims abstract description 21
- 238000004804 winding Methods 0.000 claims abstract description 8
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1735—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at only one end of the rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Brushless Motors (AREA)
Abstract
The invention relates to an automatic aligning laser radar outer rotor brushless motor, belonging to the technical field of automobile laser radar driving. Including stator module, rotor subassembly and FPCB flexible printed circuit board. The stator assembly comprises a lower bottom plate, a FPCB flexible circuit board, wherein a shaft is arranged on the lower bottom plate, the shaft and the FPCB flexible circuit board are fixed above the lower bottom plate, a centering spring, a pre-pressing spring and a stator core are arranged on the shaft, the rotor assembly comprises a rotor body and a rotor shell, a ball bearing is arranged on the rotor shell, a prism is arranged on the rotor body, a pressing plate is arranged on the prism, an oil blocking groove is formed in the rotor shell, the shaft penetrates into the rotor shell, the ball bearing is contacted with the centering spring, an insulating layer is arranged between the stator core and a winding, and the FPCB flexible circuit board is connected with the winding. The invention relates to an automatic aligning laser radar outer rotor brushless motor, which solves the problem that the vibration of the self frequency of a bearing of an automobile has influence on NVH after the automobile uses a laser radar.
Description
Technical Field
The invention relates to an automatic aligning laser radar outer rotor brushless motor, belonging to the technical field of automobile laser radar driving.
Background
The motor is an electromagnetic device for realizing electric energy conversion or transmission according to an electromagnetic induction law. Its main function is to convert electric energy into mechanical energy. Along with the continuous improvement of people's living standard, intelligent requirement is different day by day, the car is also closely relevant with people's life as vehicle at ordinary times, and intelligent automobile also is at continuous renewal satisfying consumer demand, this kind of laser radar motor is exactly that the car is unmanned drives a brushless motor of a high accuracy of using, greatly reduced the assembly error that the part precision is not enough brought under the effect of aligning spring to possess the superior performance under the same condition, the rotational speed is stable, characteristics that the concentricity is good.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the self-aligning laser radar outer rotor brushless motor solves the problem that the vibration of the self frequency of a bearing of an automobile uses a laser radar to affect NVH.
The invention provides an automatic aligning laser radar outer rotor brushless motor which comprises a stator assembly, a rotor assembly and a FPCB flexible circuit board. The stator assembly comprises a lower bottom plate and a FPCB flexible circuit board, wherein a shaft is arranged on the lower bottom plate, the shaft and the FPCB flexible circuit board are fixed above the lower bottom plate, a centering spring, a pre-pressing spring and a stator core are arranged on the shaft, the rotor assembly comprises a rotor body and a rotor shell, a ball bearing is arranged on the rotor shell, a prism is arranged on the rotor body, a pressing plate is arranged on the prism, a gear oil groove is formed in the rotor shell, the shaft penetrates into the rotor shell and the ball bearing to contact with the centering spring, an insulating layer is arranged between the stator core and a winding wire, and the FPCB flexible circuit board is connected with the winding wire.
The rotor shell is arranged on a magnetic ring inside the shell, and two ball bearings are arranged in the rotor shell.
The shaft is pressed into the lower bottom plate, and the self-aligning spring is sleeved on the shaft.
The insulating layer is an epoxy resin body.
The upper base plate is fixed with the shaft through screws, and the optical coupler on the FPCB flexible circuit board is fixed on the upper base plate, so that a whole body is formed.
The rotor shell is internally provided with an elastic retainer ring for a reverse hole, and the rotor shell is provided with a groove.
The pressing plate is provided with a hole.
The invention has the beneficial effects that:
the invention relates to an automatic aligning laser radar outer rotor brushless motor, which adopts an O-shaped rubber ring at the joint of a shaft and a ball bearing, can effectively absorb the vibration influence caused by the characteristic frequency of the bearing, and can greatly reduce the high-frequency sound caused by vibration; the axial pre-pressing spring is used for pre-pressing, so that the running abnormal sound caused by the clearance of the bearing can be eliminated; the design of the groove at the upper part of the bearing hole of the rotor can effectively prevent the ball bearing from splashing outwards when the ball bearing runs at high temperature, and the design of the holes of the rotor and the pressing plate can effectively solve the problem that the motor balances the splashing of glue when running normally
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of an outer rotor brushless motor of an automatic aligning laser radar of the present invention.
Fig. 2 is an explosion structure diagram of the self-aligning lidar outer rotor brushless motor of the present invention.
Fig. 3 is a schematic diagram of a lower bottom plate structure of the self-aligning lidar outer rotor brushless motor of the invention.
FIG. 4 is a schematic diagram of a pressing plate structure of an outer rotor brushless motor of the self-aligning laser radar of the present invention
Fig. 5 is a schematic structural diagram of an FPCB flexible printed circuit board of the self-aligning lidar outer rotor brushless motor according to the present invention.
Fig. 6 is a schematic axial structure diagram of an outer rotor brushless motor of the self-aligning lidar of the present invention.
Fig. 7 is a schematic diagram of a self-aligning spring structure of an outer rotor brushless motor of the self-aligning laser radar of the present invention.
(1, lower base plate, 2, shaft, 3, aligning spring, 4, stator core, 5, rotor shell, 6, ball bearing, 7, prism, 8, pressure plate, 9, screw)
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 to 7 show: the invention provides an automatic aligning laser radar outer rotor brushless motor which comprises a stator assembly, a rotor assembly and a FPCB flexible circuit board. The stator assembly includes: a lower bottom plate 1 and an FPCB flexible circuit board, wherein the lower bottom plate 1 is provided with a shaft 2, the shaft 2 and the FPCB flexible circuit board are both fixed above the lower bottom plate 1, the shaft 2 is provided with a self-aligning spring 3, a pre-pressing spring and a stator core 4, the rotor component comprises a rotor body and a rotor shell 5, a ball bearing 6 is arranged on the rotor shell 5, the rotor body is provided with a prism 7, the prism 7 is provided with a pressure plate 8, the rotor shell 5 is internally provided with an oil retaining groove which is used for absorbing the lubricating oil of the bearing to prevent splashing, the shaft 2 penetrates into the rotor housing 5 and the ball bearing 6 is contacted with the self-aligning spring 3, thus well playing the roles of eliminating the self frequency of the bearing, reducing the noise and the vibration, an insulating layer is arranged between the stator core 4 and the winding, and the FPCB flexible circuit board is connected with the winding.
A rotor shell 5 is arranged on a magnetic ring in the shell, and two ball bearings 6 are arranged in the rotor shell 5.
In the invention, a shaft 2 is pressed into a lower bottom plate 1, and a self-aligning spring 3 is sleeved on the shaft 2.
The insulating layer is an epoxy resin body.
According to the invention, the lower base plate 1 and the shaft 2 are fixed through the screw 9, and the optical coupler on the FPCB flexible circuit board is fixed on the upper base plate, so that a whole is formed.
According to the invention, the elastic retainer ring for the reverse hole is arranged in the rotor shell 5, and the groove is arranged on the rotor shell 5 and is used for absorbing lubricating oil of the bearing to prevent splashing.
The pressing plate 8 is provided with holes, and the effect of the pressing plate is to prevent the balance glue from splashing during balance.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. Automatic aligning laser radar outer rotor brushless motor, its characterized in that: including stator module, rotor subassembly and FPCB flexible printed circuit board. The stator assembly includes: a lower bottom plate (1) and an FPCB flexible circuit board, wherein the FPCB flexible circuit board is provided with a Hall sensing component, the lower bottom plate (1) is provided with a shaft (2), the shaft (2) and the FPCB flexible circuit board are fixed above the lower bottom plate (1), the shaft (2) is provided with a self-aligning spring (3), a pre-pressing spring and a stator iron core (4), the rotor component comprises a rotor body and a rotor casing (5), a ball bearing (6) is arranged on the rotor casing (5), the rotor body is provided with a prism (7), the prism (7) is provided with a pressing plate (8), an oil retaining groove is arranged in the rotor shell (5), the shaft (2) penetrates through the rotor shell (5) and the ball bearing (6) to be contacted with the self-aligning spring (3), an insulating layer is arranged between the stator core (4) and the winding, and the FPCB flexible circuit board is connected with the winding.
2. The self-aligning lidar outer rotor brushless motor of claim 1, wherein: the rotor casing (5) is arranged on a magnetic ring inside the casing, and two ball bearings (6) are arranged in the rotor casing (5).
3. The self-aligning lidar outer rotor brushless motor of claim 1, wherein: the shaft (2) is pressed into the lower bottom plate (1), and the self-aligning spring (3) is sleeved on the shaft (2).
4. The self-aligning lidar outer rotor brushless motor of claim 1, wherein: the rotor is characterized in that an elastic retainer ring for a reverse hole is arranged in the rotor shell (5), and a groove is formed in the rotor shell (5).
5. The self-aligning lidar outer rotor brushless motor of claim 1, wherein: the pressing plate (8) is provided with a hole.
6. The self-aligning lidar outer rotor brushless motor of claim 1, wherein: lower plate (1) and axle (2) between fixed through screw (9), the opto-coupler on the FPCB flexible printed circuit board is fixed on the upper plate to form a whole.
7. The self-aligning lidar outer rotor brushless motor of claim 1, wherein: the insulating layer is an epoxy resin body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111645920.5A CN114448147A (en) | 2021-12-30 | 2021-12-30 | Automatic aligning laser radar outer rotor brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111645920.5A CN114448147A (en) | 2021-12-30 | 2021-12-30 | Automatic aligning laser radar outer rotor brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114448147A true CN114448147A (en) | 2022-05-06 |
Family
ID=81365572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111645920.5A Pending CN114448147A (en) | 2021-12-30 | 2021-12-30 | Automatic aligning laser radar outer rotor brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114448147A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006277874A (en) * | 2005-03-30 | 2006-10-12 | Nippon Densan Corp | Recording disk aligning apparatus and brushless motor using recording disk aligning apparatus |
| CN103532279A (en) * | 2012-07-06 | 2014-01-22 | 日本电产株式会社 | Base unit, motor and disk drive apparatus |
| CN210693579U (en) * | 2019-09-30 | 2020-06-05 | 深圳市大疆创新科技有限公司 | Driving motor |
| CN112366913A (en) * | 2020-11-26 | 2021-02-12 | 雅可比智能动力(深圳)有限公司 | Shaftless hollow brushless motor |
| CN113489216A (en) * | 2021-07-05 | 2021-10-08 | 深圳市金源机电科技有限公司 | Low-vibration low-noise direct-current outer rotor brushless motor for laser radar |
-
2021
- 2021-12-30 CN CN202111645920.5A patent/CN114448147A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006277874A (en) * | 2005-03-30 | 2006-10-12 | Nippon Densan Corp | Recording disk aligning apparatus and brushless motor using recording disk aligning apparatus |
| CN103532279A (en) * | 2012-07-06 | 2014-01-22 | 日本电产株式会社 | Base unit, motor and disk drive apparatus |
| CN210693579U (en) * | 2019-09-30 | 2020-06-05 | 深圳市大疆创新科技有限公司 | Driving motor |
| CN112366913A (en) * | 2020-11-26 | 2021-02-12 | 雅可比智能动力(深圳)有限公司 | Shaftless hollow brushless motor |
| CN113489216A (en) * | 2021-07-05 | 2021-10-08 | 深圳市金源机电科技有限公司 | Low-vibration low-noise direct-current outer rotor brushless motor for laser radar |
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