CN210041577U - Outer rotor brushless permanent magnet direct current motor - Google Patents
Outer rotor brushless permanent magnet direct current motor Download PDFInfo
- Publication number
- CN210041577U CN210041577U CN201920859192.XU CN201920859192U CN210041577U CN 210041577 U CN210041577 U CN 210041577U CN 201920859192 U CN201920859192 U CN 201920859192U CN 210041577 U CN210041577 U CN 210041577U
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- CN
- China
- Prior art keywords
- permanent magnet
- direct current
- brushless permanent
- outer rotor
- current motor
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- 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.)
- Expired - Fee Related
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Abstract
An outer rotor brushless permanent magnet direct current motor, comprising: support, PCB board, stator and lead wire, the support is equipped with constant head tank and erection column, the PCB board is equipped with the locating piece, the locating piece with the constant head tank block is connected, makes the PCB board with support fixed connection, the locating piece is equipped with the socket, the lead wire is equipped with the fixed block, the fixed block is equipped with the trip, the fixed block is installed in the socket, the trip with the socket block makes the lead wire with PCB board fixed connection, the stator is equipped with the locating hole, the erection column runs through the locating hole will the stator is installed on the support, makes its compact structure reasonable, and the characteristic is reliable and stable, has reduced the whole installation space of motor, can steady operation under high temperature, prevents that the back lid pillar from warping the problem that causes the motor to become invalid.
Description
Technical Field
The utility model relates to a motor especially relates to a brushless permanent magnet direct current motor of external rotor.
Background
Along with the development of society, the application of the outer rotor brushless motor is more and more extensive, the technical requirements on products are continuously improved, and if the products are required to be energy-saving and environment-friendly, the controllability intelligent degree is high, the development cycle is short, the noise is low, and the like; the motor serving as a core component undoubtedly becomes a key component for solving the technical problems, and the traditional motor mostly adopts a one-way alternating current motor, so that the efficiency is low, the noise is high, and the controllability and the function degree are low; along with the development of motor technology, PMSM has appeared, utilize motor controller to realize the electronic commutation of electric current, nevertheless because motor controller receives overall arrangement space restriction, the heat dissipation becomes the leading problem, overheated condition appears easily, causes the internal circuit to damage, leads to the life of motor short to the heat that produces still can influence the components and parts work outside the motor so the urgent need design a centralized motor of section, the controller occupies that the space is little, powerful miniature permanent magnet brushless DC motor.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a brushless permanent magnet direct current motor of external rotor fixes the controller at the support outside, and convenient heat dissipation adopts the controller design of high integration simultaneously.
The utility model discloses a following technical scheme realizes:
the utility model provides an outer rotor brushless permanent magnet direct current motor, outer rotor brushless permanent magnet direct current motor includes: support, PCB board, stator and lead wire, the support is equipped with constant head tank and erection column, the PCB board is equipped with the locating piece, the locating piece with the constant head tank block is connected, makes the PCB board with support fixed connection, the locating piece is equipped with the socket, the lead wire is equipped with the fixed block, the fixed block is equipped with the trip, the fixed block is installed in the socket, the trip with the socket block makes the lead wire with PCB board fixed connection, the stator is equipped with the locating hole, the erection column runs through the locating hole will the stator is installed on the support.
Furthermore, the mounting column is provided with a convex part, the positioning hole is provided with a groove, and the convex part is clamped with the groove to fixedly connect the stator with the bracket.
Further, the outer rotor brushless permanent magnet direct current motor is provided with a bearing, the mounting column is provided with a mounting hole, and the bearing is accommodated in the mounting hole, so that the bearing is mounted on the support.
Further, the outer rotor brushless permanent magnet direct current motor is provided with a shaft portion, the bearing is provided with a shaft inner hole, the shaft portion penetrates through the shaft inner hole, and the shaft portion is movably connected with the support.
Further, the outer rotor brushless permanent magnet direct current motor comprises a rotor shell, the rotor shell is provided with a shaft hole, the shaft part penetrates through the shaft hole, and the shaft part is fixedly connected with the rotor shell.
Furthermore, the outer rotor brushless permanent magnet direct current motor is provided with a magnet, the magnet is contained in the rotor shell, and the magnet is fixedly connected with the rotor shell.
Further, the outer rotor brushless permanent magnet direct current motor is provided with a shell, and the shell is fixedly connected with the support.
The utility model has the advantages that:
the utility model provides a pair of brushless permanent magnet direct current motor of external rotor fixes the controller outside the support, and convenient heat dissipation adopts the controller design of high integration degree simultaneously, and small big torsion makes its compact structure reasonable, and the characteristic is reliable and stable, has reduced motor overall installation space, can steady operation under high temperature, prevents that the back lid pillar from warping the problem that causes the motor to become invalid.
Drawings
Fig. 1 is a perspective view of an outer rotor brushless permanent magnet dc motor according to the present invention;
fig. 2 is an exploded view of the outer rotor brushless permanent magnet dc motor of the present invention;
fig. 3 is a schematic cross-sectional view of an outer rotor brushless permanent magnet dc motor according to the present invention;
fig. 4 is a schematic diagram of an iron core structure of an outer rotor brushless permanent magnet dc motor stator according to the present invention;
fig. 5 is a schematic view of a part of the structure of the outer rotor brushless permanent magnet dc motor of the present invention.
Detailed Description
For a more clear and complete description of the technical solution of the present invention, the following description is made with reference to the accompanying drawings.
Referring to fig. 1 to 5, the present invention provides an outer rotor brushless permanent magnet dc motor, including: support 1, PCB board 2, stator 4 and lead wire 5, support 1 is equipped with constant head tank 13 and erection column 12, PCB board 2 is equipped with locating piece 21, locating piece 21 with constant head tank 13 block is connected, makes PCB board 2 with 1 fixed connection of support, locating piece 21 is equipped with socket 22, lead wire 5 is equipped with fixed block 51, fixed block 51 is equipped with trip 52, fixed block 51 is installed in the socket 22, trip 52 with the socket 22 block makes lead wire 5 with 2 fixed connection of PCB board, stator 4 is equipped with locating hole 41, erection column 12 runs through locating hole 41 will stator 4 is installed on the support 1.
In the embodiment, the PCB 2 is a highly integrated controller, so that the occupied space is minimized, electronic components are distributed on the PCB 2 with a diameter of phi 32mm, the PCB has electronic commutation and start-stop functions, a PWM speed regulation input port is provided, the rotational frequency is 1 time and 3 times output, the positioning block 21 and the positioning groove 13 are adopted to be clamped and connected, so that the structure can more reasonably utilize the internal space, the whole installation space of the outer rotor brushless permanent magnet direct current motor is reduced, the internal structure is more compact, and the PCB 2 is installed and fixed outside the bracket 1, so that the heat dissipation performance of the PCB 2 is better, the condition that the bracket 1 is deformed or the internal components are damaged due to overhigh temperature is avoided, the working efficiency of the motor is improved, the service life of the motor is prolonged, the whole installation space of the motor is reduced, and the stable operation can be realized at high temperature, the problem that the damage of internal components causes the motor to fail is prevented.
Furthermore, the mounting post 12 is provided with a convex portion 14, the positioning hole 41 is provided with a groove 42, and the convex portion 14 is engaged with the groove 42, so that the stator 4 is fixedly connected with the bracket 1.
In this embodiment, the protruding portion 14 and the groove 42 are engaged to fix the stator 4 to the bracket 1, so that the structure is more stable and convenient, the stator 4 can be replaced or maintained conveniently, and the working efficiency is stable.
Further, the outer rotor brushless permanent magnet direct current motor is provided with a bearing 3, the mounting column 12 is provided with a mounting hole 11, the bearing 3 is accommodated in the mounting hole 11, and the bearing 3 is mounted on the bracket 1; the outer rotor brushless permanent magnet direct current motor is provided with a shaft part 7, the bearing 3 is provided with a shaft inner hole 31, the shaft part 7 penetrates through the shaft inner hole 31, and the shaft part 7 is movably connected with the bracket 1; the outer rotor brushless permanent magnet direct current motor comprises a rotor shell 8, wherein the rotor shell 8 is provided with a shaft hole 81, the shaft part 7 penetrates through the shaft hole 81, and the shaft part 7 is fixedly connected with the rotor shell 8; the outer rotor brushless permanent magnet direct current motor is provided with magnets 9, the magnets 9 are contained in the rotor shell 8, and the magnets 9 are fixedly connected with the rotor shell 8.
In this embodiment, the bearing 3 is used for lubricating the rotor, so that the motor works smoothly and stably, the bearing 3 is installed in the installation hole 11, so that the bearing 3 is installed on the bracket 1, the magnet 9 is fixedly connected with the rotor housing 8, and the magnet 9 is accommodated in the rotor housing 8, the magnet 9 is annular and can be contained outside the stator 4, the shaft portion 7 sequentially penetrates through the shaft hole 81 and the shaft inner hole 31, the rotor housing 8, the bearing 3, the magnet 9 and the stator 4 are installed on the bracket 1, when working, the stator 4 generates electromagnetic force, the stator 4 is fixed on the bracket 1, so that the stator 4 is stationary, the generated electromagnetic force drives the magnet 9, the magnet 9 is fixedly connected with the rotor housing 8, the magnet 9 drives the rotor housing 8 to rotate, the rotor case 8 is fixedly connected to the shaft portion 7, so that the shaft portion 7 rotates, and the shaft portion 7 rotates to drive an external device to work.
Further, the outer rotor brushless permanent magnet direct current motor is provided with a shell 6, and the shell 6 is fixedly connected with the support 1.
In this embodiment, the housing 6 is configured to house the holder 1, the bearing 3, the stator 4, the rotor case 8, and the magnet 9 therein, and is fixedly connected to the PCB 2, thereby protecting internal components, preventing dust from entering, and improving the overall tightness.
Of course, the present invention can also have other various embodiments, and based on the embodiments, those skilled in the art can obtain other embodiments without any creative work, and all of them belong to the protection scope of the present invention.
Claims (7)
1. An outer rotor brushless permanent magnet direct current motor, comprising: support, PCB board, stator and lead wire, the support is equipped with constant head tank and erection column, the PCB board is equipped with the locating piece, the locating piece with the constant head tank block is connected, makes the PCB board with support fixed connection, the locating piece is equipped with the socket, the lead wire is equipped with the fixed block, the fixed block is equipped with the trip, the fixed block is installed in the socket, the trip with the socket block makes the lead wire with PCB board fixed connection, the stator is equipped with the locating hole, the erection column runs through the locating hole will the stator is installed on the support.
2. The external rotor brushless permanent magnet direct current motor of claim 1, wherein the mounting posts are provided with protrusions, the positioning holes are provided with grooves, and the protrusions are engaged with the grooves to fixedly connect the stator with the bracket.
3. The outer rotor brushless permanent magnet dc motor of claim 1, wherein the outer rotor brushless permanent magnet dc motor is provided with a bearing, the mounting post is provided with a mounting hole, and the bearing is received in the mounting hole such that the bearing is mounted on the bracket.
4. The outer rotor brushless permanent magnet direct current motor of claim 3, wherein the outer rotor brushless permanent magnet direct current motor is provided with a shaft portion, the bearing is provided with a shaft inner hole, the shaft portion penetrates through the shaft inner hole, and the shaft portion is movably connected with the bracket.
5. The outer rotor brushless permanent magnet direct current motor of claim 4, comprising a rotor shell, wherein the rotor shell is provided with a shaft hole, the shaft portion penetrates through the shaft hole, and the shaft portion is fixedly connected with the rotor shell.
6. The outer rotor brushless permanent magnet direct current motor of claim 5, wherein the outer rotor brushless permanent magnet direct current motor is provided with magnets, the magnets are accommodated in the rotor shell, and the magnets are fixedly connected with the rotor shell.
7. The outer rotor brushless permanent magnet direct current motor of claim 1, wherein the outer rotor brushless permanent magnet direct current motor is provided with a housing, and the housing is fixedly connected with the bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920859192.XU CN210041577U (en) | 2019-06-05 | 2019-06-05 | Outer rotor brushless permanent magnet direct current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920859192.XU CN210041577U (en) | 2019-06-05 | 2019-06-05 | Outer rotor brushless permanent magnet direct current motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210041577U true CN210041577U (en) | 2020-02-07 |
Family
ID=69347195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920859192.XU Expired - Fee Related CN210041577U (en) | 2019-06-05 | 2019-06-05 | Outer rotor brushless permanent magnet direct current motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210041577U (en) |
-
2019
- 2019-06-05 CN CN201920859192.XU patent/CN210041577U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 Termination date: 20200605 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |