CN219718001U - Anti-chip outer rotor motor - Google Patents
Anti-chip outer rotor motor Download PDFInfo
- Publication number
- CN219718001U CN219718001U CN202321271436.5U CN202321271436U CN219718001U CN 219718001 U CN219718001 U CN 219718001U CN 202321271436 U CN202321271436 U CN 202321271436U CN 219718001 U CN219718001 U CN 219718001U
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- China
- Prior art keywords
- chip
- magnetic ring
- motor
- ring bracket
- external rotor
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- 238000004804 winding Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 208000001840 Dandruff Diseases 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a chip-preventing outer rotor motor, which is characterized in that a clamping position which can be clamped with a motor shell or a magnetic ring bracket to ensure that the chip-preventing cover and the magnetic ring bracket are connected together is arranged on the chip-preventing cover, so that the chip-preventing cover can be prevented from rotating relative to the magnetic ring bracket and the motor shell.
Description
[ field of technology ]
The utility model relates to the technical field of motors, in particular to a chip-preventing outer rotor motor.
[ background Art ]
The upper shell and the lower shell of the outer rotor motor at the present stage are relatively and fixedly connected with the magnetic ring bracket through the connecting screw, so that screw scraps can be generated in the outer rotor motor during the assembly process to enter the outer rotor motor, the outer rotor motor can be blocked or noise is generated due to foreign matters such as the screw scraps during the operation, the normal use of the outer rotor motor is affected, and potential safety hazards exist.
In order to solve the problems of the outer rotor motor, a chip-proof cover is usually additionally arranged in the outer rotor motor to prevent external foreign matters from entering, so that the outer rotor motor is ensured to be normally used. However, in the existing outer rotor motor, the chip-proof cover is usually fixed on the outer rotor motor by adopting a fastening piece such as a connecting screw, so that the problems of difficult disassembly and assembly and high installation cost are caused.
The present utility model has been made in view of the above problems.
[ utility model ]
The utility model aims to overcome the defects of the prior art and provide the anti-scrap external rotor motor which can solve the problems in the prior art and has the characteristics of convenience in disassembly and assembly and low installation cost.
The utility model is realized by the following technical scheme:
the anti-scrap external rotor motor comprises a motor shaft 1, wherein a stator assembly 2 is relatively fixedly connected to the motor shaft 1, a rotor assembly 3 is rotatably arranged on the motor shaft 1, the rotor assembly 3 comprises a magnetic ring bracket 31 rotatably arranged on the outer side of the stator assembly 2 and a motor shell 32 rotatably arranged on the motor shaft 1, the motor shell 32 is connected with the magnetic ring bracket 31 in a synchronous mode through a connecting screw 33, and the magnetic ring bracket 31 is positioned on the inner side of the motor shell 32; a chip-preventing cover 4 is arranged between the motor housing 32 and the magnetic ring bracket 31, a clamping position 441 which can be clamped with the motor housing 32 or the magnetic ring bracket 31 to enable the chip-preventing cover 4 to be connected with the magnetic ring bracket 31 in a same way is arranged on the chip-preventing cover 4, and the chip-preventing cover 4 is configured to be pressed by the motor housing 32 and the magnetic ring bracket 31.
In the anti-chip external rotor motor, the anti-chip cover 4 is positioned between the upper surface of the magnetic ring bracket 31 and the motor shell 32, and/or the anti-chip cover 4 is positioned between the lower surface of the magnetic ring bracket 31 and the motor shell 32.
The anti-scrap external rotor motor is characterized in that the magnetic ring bracket 31 is provided with a connecting rod sleeve 311 for the connecting screw 33 to penetrate through and extend outwards from the upper surface and the lower surface of the magnetic ring bracket 31; the clamping position 441 is a clamping notch which is arranged on the chip-proof cover 4 and is matched with the outer wall of the connecting rod sleeve 311 in a clamping way.
The anti-scrap external rotor motor is characterized in that the magnetic ring bracket 31 is provided with a connecting rod sleeve 311 for the connecting screw 33 to penetrate through and extend outwards from the upper surface and the lower surface of the magnetic ring bracket 31; the clamping position 441 is a clamping protrusion arranged on the chip-proof cover 4 and can be clamped between two adjacent connecting rod sleeves 311.
As described above, the chip-preventing outer rotor motor, the chip-preventing cover 4 includes an annular connecting portion 42 that can be disposed parallel to the upper surface of the magnetic ring support 31, an upper chip-preventing portion 41 is formed by extending upward from the inner edge of the annular connecting portion 42, the upper end of the upper chip-preventing portion 41 can be in abutting engagement with the inner wall of the motor housing 32, a side chip-preventing portion 43 is formed by extending downward from the outer edge of the annular connecting portion 42, the center of the side chip-preventing portion 43 and the center of the upper chip-preventing portion 41 are on the same axis, an abutting portion 44 that can be in abutting engagement with the surface of the magnetic ring support 31 is formed by extending outward from the lower edge of the side chip-preventing portion 43, the abutting portion 44 and the annular connecting portion 42 are disposed parallel, and the clamping position 441 is disposed on the abutting portion 44.
In the above-mentioned anti-chip external rotor motor, a plurality of reinforcing ribs 411 extending in the axial direction are circumferentially provided on the outer wall of the upper anti-chip portion 41 at intervals, and/or a plurality of reinforcing ribs 411 extending in the radial direction are circumferentially provided on the upper surface of the annular connecting portion 42 at intervals.
The cross section of the side chip-preventing part 43 of the chip-preventing external rotor motor is provided in a ladder-shaped structure.
As described above, the upper chip preventing portion 41, the annular connecting portion 42, the side chip preventing portion 43 and the abutting portion 44 are connected to each other perpendicularly adjacent to each other.
The anti-chip outer rotor motor is characterized in that the anti-chip cover 4 is made of plastic materials and is of an integrally formed integral structure.
The anti-scrap external rotor motor is characterized in that the stator assembly 2 comprises a stator core 21 arranged on the motor shaft 1, and an insulating sheet 211 is arranged on the surface of the stator core 21.
The anti-scrap external rotor motor comprises a stator assembly 2 and a stator winding 22, wherein the outer edge of the insulating sheet 211 is provided with a plug-in part 212 which can be inserted into the stator winding 22.
Compared with the prior art, the utility model has the following advantages:
1. the chip-proof cover is provided with the clamping position which can be clamped with the motor shell or the magnetic ring support to ensure that the chip-proof cover and the magnetic ring support are connected in a same way, so that the chip-proof cover can be prevented from rotating relative to the magnetic ring support and the motor shell.
2. The reinforcing ribs are arranged on the upper scrap prevention part and the annular connecting part, so that the structural strength and the stability can be improved.
3. In order to reduce the manufacturing cost and assembly steps, the chip-proof cover is made of plastic materials and is of an integrally formed integral structure.
4. The insulating sheet is arranged on the surface of the stator core, so that insulation between the stator core and the stator winding can be enhanced.
[ description of the drawings ]
The utility model is described in further detail below with reference to the attached drawing figures, wherein:
fig. 1 is a perspective view of the present utility model.
Fig. 2 is a cross-sectional view of the present utility model.
Fig. 3 is an exploded view of the present utility model.
Fig. 4 is a perspective view of the chip guard of the present utility model.
Fig. 5 is a top view of the chip guard of the present utility model.
[ detailed description ] of the utility model
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1-5, the anti-dandruff external rotor motor comprises a motor shaft 1, wherein a stator assembly 2 is relatively fixedly connected to the motor shaft 1, a rotor assembly 3 is rotatably arranged on the motor shaft 1, the rotor assembly 3 comprises a magnetic ring bracket 31 rotatably arranged outside the stator assembly 2 and a motor shell 32 rotatably arranged on the motor shaft 1, the motor shell 32 is connected with the magnetic ring bracket 31 in a synchronous manner through a connecting screw 33, and the magnetic ring bracket 31 is positioned inside the motor shell 32; a chip-preventing cover 4 is arranged between the motor housing 32 and the magnetic ring bracket 31, a clamping position 441 which can be clamped with the motor housing 32 or the magnetic ring bracket 31 to enable the chip-preventing cover 4 to be connected with the magnetic ring bracket 31 in a same way is arranged on the chip-preventing cover 4, and the chip-preventing cover 4 is configured to be pressed by the motor housing 32 and the magnetic ring bracket 31. The chip-proof cover is provided with the clamping position which can be clamped with the motor shell or the magnetic ring support to ensure that the chip-proof cover and the magnetic ring support are connected in a same way, so that the chip-proof cover can be prevented from rotating relative to the magnetic ring support and the motor shell.
Preferably, the chip guard 4 is located between the upper surface of the magnet ring support 31 and the motor housing 32, and/or the chip guard 4 is located between the lower surface of the magnet ring support 31 and the motor housing 32. As shown in fig. 2 and 3, the chip-proof cover 4 is located between the upper surface of the magnetic ring bracket 31 and the motor housing 32 in the present embodiment.
As shown in fig. 2-5, in order to improve the assembly efficiency and the connection stability, the magnetic ring bracket 31 is provided with a connecting rod sleeve 311 for the connecting screw 33 to penetrate and extend outwards from the upper surface and the lower surface of the magnetic ring bracket 31; the clamping position 441 is a clamping notch which is arranged on the chip-proof cover 4 and is matched with the outer wall of the connecting rod sleeve 311 in a clamping way. In addition, the clamping notch is matched with the outer wall of the connecting rod sleeve 311 in a clamping way, so that the positioning and guiding functions of the chip-proof cover are achieved, and the chip-proof cover is convenient for workers to install.
In other embodiments, the magnetic ring bracket 31 is provided with a connecting rod sleeve 311 for the connecting screw 33 to penetrate and extend outwards from the upper surface and the lower surface of the magnetic ring bracket 31; the clamping position 441 is a clamping protrusion arranged on the chip-proof cover 4 and can be clamped between two adjacent connecting rod sleeves 311.
As shown in fig. 2-5, in order to improve the structural strength and the chip-preventing effect, the chip-preventing cover 4 includes an annular connecting portion 42 that can be disposed parallel to the upper surface of the magnetic ring bracket 31, an upper chip-preventing portion 41 is formed by extending upward from the inner edge of the annular connecting portion 42, the upper end of the upper chip-preventing portion 41 can be in abutting engagement with the inner wall of the motor housing 32, a side chip-preventing portion 43 is formed by extending downward from the outer edge of the annular connecting portion 42, the center of the side chip-preventing portion 43 and the center of the upper chip-preventing portion 41 are on the same axis, an abutting portion 44 that can be in abutting engagement with the surface of the magnetic ring bracket 31 is formed by extending outward from the lower edge of the side chip-preventing portion 43, the abutting portion 44 is disposed parallel to the annular connecting portion 42, and the clamping position 441 is disposed on the abutting portion 44.
As shown in fig. 3-5, in order to improve the structural strength and stability of the chip-preventing cover, a plurality of ribs 411 extending in the axial direction are circumferentially provided on the outer wall of the upper chip-preventing portion 41 at intervals, and/or a plurality of ribs 411 extending in the radial direction are circumferentially provided on the upper surface of the annular connecting portion 42 at intervals.
As shown in fig. 3-5, in order to improve the structural strength and stability of the chip-proof cover, the cross section of the side chip-proof part 43 is arranged in a stepped structure.
As shown in fig. 3-5, in order to improve the structural strength and stability of the chip-preventing cover, the upper chip-preventing part 41, the annular connecting part 42, the side chip-preventing part 43 and the abutting part 44 are connected vertically adjacent to each other.
In order to reduce the manufacturing cost and assembly steps, the chip-proof cover 4 is made of plastic materials and is in an integrally formed integral structure. Preferably, the chip-proof cover is made of nylon and the like, so that the chip-proof cover can be ensured to have good heat resistance, wear resistance and self-lubricating property, the chip-proof cover is prevented from being directly and rigidly contacted with a magnetic ring bracket or a motor shell to be worn, the service life of the outer rotor motor is influenced, and the maintenance and replacement cost is reduced.
As shown in fig. 2 and 3, in order to enhance insulation between the stator core and the stator winding, the stator assembly 2 includes a stator core 21 provided on the motor shaft 1, and an insulation sheet 211 is provided on a surface of the stator core 21.
Further, the stator assembly 2 further includes a stator winding 22, and the outer edge of the insulating sheet 211 has a plug portion 212 that can be inserted into the stator winding 22, that is, the plug portion 212 is inserted into a gap between the inner wall of the stator winding 22 and the surface of the stator core 21, so that the connection between the two is more stable and firm.
The assembly principle of the chip-proof cover:
the staff prevents the chip-proof cover 4 from being arranged on the upper surface of the magnetic ring bracket 31, and the clamping notch of the chip-proof cover 4 is correspondingly matched with the outer wall of the connecting rod sleeve 311 in a clamping way;
then the upper shell and the lower shell of the motor shell are respectively connected with the motor shaft, and then the motor shell is fixedly connected with the magnetic ring bracket through the connecting screw rod 33, so that the chip-proof cover is pressed and fixed by the inner wall of the upper shell and the upper surface of the magnetic ring bracket 31.
Claims (10)
1. The anti-scrap external rotor motor is characterized by comprising a motor shaft (1), wherein a stator assembly (2) is relatively fixedly connected to the motor shaft (1), a rotor assembly (3) is rotatably arranged on the motor shaft (1), the rotor assembly (3) comprises a magnetic ring bracket (31) rotatably arranged on the outer side of the stator assembly (2) and a motor shell (32) rotatably arranged on the motor shaft (1), the motor shell (32) is connected with the magnetic ring bracket (31) in a same motion, and the magnetic ring bracket (31) is positioned on the inner side of the motor shell (32); the chip-proof cover (4) is arranged between the motor shell (32) and the magnetic ring support (31), the chip-proof cover (4) is provided with a clamping position (441) which can be clamped with the motor shell (32) or the magnetic ring support (31) so that the chip-proof cover (4) and the magnetic ring support (31) are connected in a same motion, and the chip-proof cover (4) is configured to be pressed by the motor shell (32) and the magnetic ring support (31).
2. A chip-proof external rotor motor according to claim 1, characterized in that the chip-proof cover (4) is located between the upper surface of the magnetic ring support (31) and the motor housing (32) and/or that the chip-proof cover (4) is located between the lower surface of the magnetic ring support (31) and the motor housing (32).
3. The anti-scrap external rotor motor according to claim 1, wherein the magnetic ring bracket (31) is provided with a connecting rod sleeve (311) which extends outwards from the upper surface and the lower surface of the magnetic ring bracket (31); the clamping position (441) is a clamping notch which is arranged on the chip-proof cover (4) and is matched with the outer wall of the connecting rod sleeve (311) in a clamping way.
4. The anti-scrap external rotor motor according to claim 1, wherein the magnetic ring bracket (31) is provided with a connecting rod sleeve (311) which extends outwards from the upper surface and the lower surface of the magnetic ring bracket (31); the clamping position (441) is a clamping protrusion which is arranged on the chip-proof cover (4) and can be clamped between two adjacent connecting rod sleeves (311).
5. The anti-chip external rotor motor according to any one of claims 1 to 4, wherein the anti-chip cover (4) comprises an annular connecting portion (42) which can be arranged in parallel with the upper surface of the magnetic ring bracket (31), an upper anti-chip portion (41) is formed by extending upward from the inner edge of the annular connecting portion (42), the upper end of the upper anti-chip portion (41) can be in butt fit with the inner wall of the motor housing (32), a side anti-chip portion (43) is formed by extending downward from the outer edge of the annular connecting portion (42), the center of the side anti-chip portion (43) and the center of the upper anti-chip portion (41) are located on the same axis, an abutting portion (44) which can be in butt fit with the surface of the magnetic ring bracket (31) is formed by extending outward from the lower edge of the side anti-chip portion (43), the abutting portion (44) is arranged in parallel with the annular connecting portion (42), and the clamping position (441) is arranged on the abutting portion (44).
6. The anti-chip external rotor motor according to claim 5, wherein a plurality of reinforcing ribs (411) extending in the axial direction are circumferentially arranged on the external wall of the upper anti-chip part (41) at intervals, and/or a plurality of reinforcing ribs (411) extending in the radial direction are circumferentially arranged on the upper surface of the annular connecting part (42) at intervals.
7. The anti-chip external rotor motor according to claim 5, wherein the cross section of the side anti-chip part (43) is arranged in a step-like structure.
8. The anti-chip external rotor motor according to claim 1, characterized in that the anti-chip cover (4) is made of plastic material and is in an integrally formed integral structure.
9. The anti-chip external rotor motor according to claim 1, characterized in that the stator assembly (2) comprises a stator core (21) arranged on a motor shaft (1), and an insulating sheet (211) is arranged on the surface of the stator core (21).
10. The anti-chip external rotor motor according to claim 9, characterized in that the stator assembly (2) further comprises a stator winding (22), and the outer edge of the insulating sheet (211) is provided with a plug-in part (212) which can be inserted into the stator winding (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321271436.5U CN219718001U (en) | 2023-05-23 | 2023-05-23 | Anti-chip outer rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321271436.5U CN219718001U (en) | 2023-05-23 | 2023-05-23 | Anti-chip outer rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219718001U true CN219718001U (en) | 2023-09-19 |
Family
ID=88005325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321271436.5U Active CN219718001U (en) | 2023-05-23 | 2023-05-23 | Anti-chip outer rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219718001U (en) |
-
2023
- 2023-05-23 CN CN202321271436.5U patent/CN219718001U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |