CN216599163U - Low-noise motor - Google Patents
Low-noise motor Download PDFInfo
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- CN216599163U CN216599163U CN202123160064.2U CN202123160064U CN216599163U CN 216599163 U CN216599163 U CN 216599163U CN 202123160064 U CN202123160064 U CN 202123160064U CN 216599163 U CN216599163 U CN 216599163U
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- base material
- brush base
- brush
- electric brush
- low noise
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Abstract
The utility model discloses a low-noise motor which comprises a shell structure, a stator assembly and a rotor assembly, wherein the shell structure comprises a hood and an end cover, the hood is provided with an accommodating cavity, the stator assembly and the rotor assembly are accommodated in the accommodating cavity, the end cover is arranged at the end part of the hood to seal the accommodating cavity, the rotor assembly is provided with a rotor core, a plurality of wire placing grooves are formed in the rotor core, and the width d1 of the notches of the wire placing grooves is 1.5-2.5 mm. The utility model effectively reduces the eddy current sound generated in the motor operation process through reasonable structural design, thereby achieving the effect of optimizing the noise reduction of the motor, and the noise generated in the motor operation process can be changed from the original 45db to 35 db.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a low-noise motor.
Background
The conventional motor configured with a watch shaker has problems of high noise and noise variation due to its unreasonable structural design, and therefore it is urgently needed to provide a motor structure with low noise.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a low-noise motor and optimize the noise reduction effect of the motor.
In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a low noise motor, its includes shell structure, stator module and rotor subassembly, and shell structure includes aircraft bonnet and end cover, and the aircraft bonnet has a holding chamber, and this holding chamber is all located to stator module and rotor subassembly, and the end cover is installed at the tip of aircraft bonnet to be sealed the holding chamber, rotor subassembly are provided with rotor core, and the rotor core shaping has a plurality of wire casing of putting, and the notch width d1 of putting the wire casing is 1.5-2.5 mm.
In a further technical scheme, the width d1 of the slot opening of the wire placing slot is 2.0 mm.
In a further technical scheme, the stator assembly is provided with a plurality of brushes, each brush comprises a brush base material and a conducting strip embedded in the brush base material, the thickness of the conducting strip is 0.068-0.72mm, and the hardness of the brush base material is 210-240 hv.
In a further technical scheme, the end cover is formed with an electric brush accommodating groove and an electric brush jack communicated with the electric brush accommodating groove, the electric brush base material is of an L-shaped sheet structure, one end of the electric brush base material is accommodated in the electric brush accommodating groove, and the other end of the electric brush base material is inserted into the electric brush jack.
In a further technical scheme, a stopping protrusion is formed at a position, corresponding to the electric brush accommodating groove, of the end cover, a clamping hole is formed in one end of the electric brush base material in an inwards concave mode, and when the electric brush base material is accommodated in the electric brush accommodating groove, the clamping hole of the electric brush base material is clamped in the stopping protrusion.
In a further technical scheme, the other end of the electric brush base material is provided with an elastic buckling foot, and after the electric brush base material is inserted into the electric brush insertion hole, the elastic buckling foot is abutted to the outer side of the end cover.
In a further technical scheme, the rotor assembly further comprises a rotating shaft inserted in a shaft hole of the rotor core and a commutator sleeved on the rotating shaft, and the plurality of electric brushes are annularly arranged around the central axis of the commutator.
In a further technical scheme, an insulating antirust paint layer is formed on the surface of the rotor core through a coating process.
After adopting the structure, compared with the prior art, the utility model has the advantages that:
1. the width d1 of the slot opening of the wire placing slot is set to be 1.5-2.5 mm. The structure design can effectively reduce the eddy sound generated in the running process of the motor, thereby achieving the effect of optimizing the noise reduction of the motor, and the noise generated in the running process of the motor can be changed from original 45db to 35 db.
2. The thickness of the conducting strip of the brush is set to be 0.068-0.72mm, the hardness of the brush base material is set to be 210-240hv, and the noise generated by friction between the brush and the commutator is weakened by reducing the thickness of the conducting strip and the hardness of the brush base material, so that the noise reduction effect is further achieved.
3. The surface of the rotor core is formed with the insulating antirust paint layer through a coating process, and compared with the mode that the rotor core is assembled with the insulating sheet in the prior art, the structural design reduces the noise generated in the operation of the feather of the insulating sheet, and further achieves the noise reduction effect.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the end cap and brush configuration;
FIG. 3 is a schematic structural view of an end cap;
fig. 4 is an enlarged schematic view of the structure at a in fig. 3.
FIG. 5 is a schematic view of a rotor core structure
Detailed Description
The following are merely preferred embodiments of the present invention, and do not limit the scope of the present invention.
As shown in fig. 1 to 5, the low noise motor provided by the present invention includes a housing structure, a stator assembly and a rotor assembly, the housing structure includes a housing 10 and an end cover 11, the housing 10 has an accommodating cavity, the stator assembly and the rotor assembly are both accommodated in the accommodating cavity, the end cover 11 is mounted at an end of the housing 10 to seal the accommodating cavity, the rotor assembly is provided with a rotor core 2, the rotor core 2 is formed with a plurality of slot placement grooves 20, and a slot opening width d1 of the slot placement grooves 20 is 1.5-2.5 mm. The utility model is mainly used as the motor of the meter shaker, the structural design can effectively reduce the eddy current sound generated in the running process of the motor, thereby achieving the effect of optimizing the noise reduction of the motor, and the noise generated in the running process of the motor can be changed from the original 45db to 35 db.
Specifically, the width d1 of the slot 20 is preferably 2.0 mm.
Specifically, the stator assembly is provided with a plurality of brushes 30, each brush 30 comprises a brush base material 300 and a conducting strip 301 embedded in the brush base material 300, the thickness of the conducting strip 301 is 0.068-0.72mm, the hardness of the brush base material 300 is 210-240hv, and by reducing the thickness of the conducting strip 301 and the hardness of the brush base material 300, noise generated by friction between the brush and a commutator is weakened, and the noise reduction effect is further achieved.
Specifically, the end cover 11 is formed with a brush accommodating groove 110 and a brush insertion hole 111 communicating with the brush accommodating groove 110, the brush base material 300 is an L-shaped sheet structure, one end of the brush base material 300 is accommodated in the brush accommodating groove 110, and the other end is inserted into the brush insertion hole 111.
Preferably, the end cap 11 is formed with a stop protrusion 112 at a position corresponding to the brush receiving groove 110, one end of the brush base material 300 is formed with a clamping hole 302 in a concave manner, and when the brush base material 300 is received in the brush receiving groove 110, the clamping hole 302 of the brush base material 300 is clamped in the stop protrusion 112.
Specifically, the other end of the brush base material 300 is provided with an elastic snap leg 303, and after the brush base material 300 is inserted into the brush insertion hole 111, the elastic snap leg 303 abuts against the outer side of the end cover 11.
Specifically, the rotor assembly further includes a rotating shaft 21 inserted into the shaft hole of the rotor core 2, and a commutator 22 sleeved on the rotating shaft 21, and the plurality of brushes 30 are annularly arranged around the central axis of the commutator 22.
Specifically, the surface of rotor core 2 has the insulating anti-rust paint layer through the shaping of coating process, for the mode that prior art will assemble the insulating piece at rotor core, such structural design has reduced because of the noise that the feather of insulating piece produced in the operation, further reaches the effect of making an uproar that falls.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (8)
1. A low noise motor, its characterized in that: including shell structure, stator module and rotor subassembly, shell structure includes aircraft bonnet (10) and end cover (11), and aircraft bonnet (10) have a holding chamber, and this holding chamber is all located to stator module and rotor subassembly, and the tip at aircraft bonnet (10) is installed in end cover (11), in order sealed the holding chamber, rotor subassembly are provided with rotor core (2), and rotor core (2) shaping has a plurality of wire casing (20) of putting, and the notch width d1 of putting wire casing (20) is 1.5-2.5 mm.
2. A low noise motor according to claim 1, wherein: the width d1 of the notch of the wire placing groove (20) is 2.0 mm.
3. A low noise motor according to claim 1, wherein: the stator assembly is provided with a plurality of brushes (30), each brush (30) comprises a brush base material (300) and a conducting strip (301) embedded in the brush base material (300), the thickness of the conducting strip (301) is 0.068-0.72mm, and the hardness of the brush base material (300) is 210 and 240 hv.
4. A low noise motor according to claim 3, wherein: the end cover (11) is formed with an electric brush accommodating groove (110) and an electric brush insertion hole (111) communicated with the electric brush accommodating groove (110), the electric brush base material (300) is of an L-shaped sheet structure, one end of the electric brush base material (300) is accommodated in the electric brush accommodating groove (110), and the other end of the electric brush base material is inserted into the electric brush insertion hole (111).
5. A low noise motor according to claim 4, wherein: the end cover (11) is provided with a stop protrusion (112) at a position corresponding to the brush accommodating groove (110), one end of the brush base material (300) is provided with a clamping hole (302) in an inward concave manner, and when the brush base material (300) is accommodated in the brush accommodating groove (110), the clamping hole (302) of the brush base material (300) is clamped in the stop protrusion (112).
6. A low noise motor according to claim 5, wherein: the other end of the electric brush base material (300) is provided with an elastic buckling pin (303), and after the electric brush base material (300) is inserted into the electric brush insertion hole (111), the elastic buckling pin (303) is abutted against the outer side of the end cover (11).
7. A low noise motor according to claim 3, wherein: the rotor assembly further comprises a rotating shaft (21) inserted in the shaft hole of the rotor core (2) and a commutator (22) sleeved on the rotating shaft (21), and the plurality of electric brushes (30) are annularly arranged around the central axis of the commutator (22).
8. A low noise motor according to claim 1, wherein: and an insulating antirust paint layer is formed on the surface of the rotor core (2) through a coating process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123160064.2U CN216599163U (en) | 2021-12-14 | 2021-12-14 | Low-noise motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123160064.2U CN216599163U (en) | 2021-12-14 | 2021-12-14 | Low-noise motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216599163U true CN216599163U (en) | 2022-05-24 |
Family
ID=81612785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123160064.2U Active CN216599163U (en) | 2021-12-14 | 2021-12-14 | Low-noise motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216599163U (en) |
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2021
- 2021-12-14 CN CN202123160064.2U patent/CN216599163U/en active Active
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