CN219875287U - Dustproof structure of brushless motor - Google Patents
Dustproof structure of brushless motor Download PDFInfo
- Publication number
- CN219875287U CN219875287U CN202321335086.4U CN202321335086U CN219875287U CN 219875287 U CN219875287 U CN 219875287U CN 202321335086 U CN202321335086 U CN 202321335086U CN 219875287 U CN219875287 U CN 219875287U
- Authority
- CN
- China
- Prior art keywords
- dust
- cover
- rotating shaft
- shell
- dustproof
- 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.)
- Active
Links
- 239000000428 dust Substances 0.000 claims abstract description 35
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 241000883990 Flabellum Species 0.000 claims abstract description 3
- 238000010276 construction Methods 0.000 claims abstract description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The utility model provides a dustproof construction of brushless motor, includes stator module, rotor subassembly, casing, stator module installs in the inner chamber of casing, rotor subassembly wears to put in stator module, and the casing, its characterized in that are stretched out to the flabellum link of rotor subassembly's pivot: the anti-dust device comprises a rotating shaft, wherein a mounting groove is formed in the end face of the shell, extending out of the periphery of the shell through hole of the rotating shaft, a dust cover is connected in the mounting groove, and a cover through hole penetrating through the rotating shaft is formed in the middle of the dust cover. The utility model has the advantages that: the dust cover can fill the clearance space between the through hole of the shell and the rotating shaft, so that dust is prevented from entering the inner cavity of the shell from the position of the through hole of the shell, a good dust-proof effect is achieved, and the service life of the brushless motor is prolonged. The rotor assembly is further provided with a first dust-proof sheet and a second dust-proof sheet, thereby further improving the dust-proof capability of the brushless motor.
Description
Technical Field
The utility model relates to the technical field of motor manufacturing, in particular to a dustproof structure of a brushless motor.
Background
The prior Chinese patent application with the application number of CN201810938846.8 called a brushless motor with a built-in controller discloses a brushless motor with a built-in controller, which comprises a motor body and a controller; the controller is connected with the motor body through a data transmission line and is used for controlling the operation of the motor body, and the controller is arranged on the motor body. The utility model is characterized in that a controller is arranged on a brushless motor; on the one hand, when the device is assembled on large-scale equipment, only one installation space is reserved in design, assembly and other links, so that manpower and material resources are saved; on the other hand, the circuit between the brushless motor and the controller is simple to lay. However, dust is easily introduced into the rotor mounting chamber of the brushless motor, and the dust-proof effect is not ideal, so that the structure of the brushless motor needs to be further improved.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a dustproof structure of a brushless motor, which can prevent dust and has good dustproof effect.
The technical scheme adopted for solving the technical problems is as follows: this dustproof construction of brushless motor, including stator module, rotor subassembly, casing, stator module installs in the inner chamber of casing, rotor subassembly wears to put in stator module, and the casing, its characterized in that are stretched out to the flabellum link of rotor subassembly's pivot: the anti-dust device comprises a rotating shaft, wherein a mounting groove is formed in the end face of the shell, extending out of the periphery of the shell through hole of the rotating shaft, a dust cover is connected in the mounting groove, and a cover through hole penetrating through the rotating shaft is formed in the middle of the dust cover.
As an improvement, an annular protruding part can be preferably arranged on the bottom surface of the mounting groove, an annular embedded groove is arranged on the bottom surface of the dust cover, and the protruding part and the embedded groove are clamped together.
Further improved, the diameter of the shell through hole can be preferably larger than that of the rotating shaft, a cover body protrusion is arranged in the middle of the bottom surface of the dust cover, the cover body protrusion is buckled on the shell through hole, the bottom surface of the cover body protrusion is in contact with the end surface of the first bearing of the rotor assembly, and the cover body through hole is located on the cover body protrusion.
Further improved, a first dust-proof sheet can be preferably sleeved on the rotating shaft, and the first dust-proof sheet is positioned on the rotating shaft between the first bearing and the magnetic ring.
Further improved, a second dustproof sheet can be preferably sleeved on the rotating shaft, and the second dustproof sheet is positioned on the rotating shaft between the second bearing and the magnetic ring.
Further, a first balance ring can be preferably arranged between the first dustproof sheet and the magnetic ring, the first balance ring is attached to the end face of the magnetic ring, and a second balance ring can be preferably arranged between the second dustproof sheet and the magnetic ring, and the second balance ring is attached to the other end face of the magnetic ring.
As an improvement, a dust cover may be detachably connected to the end face of the housing, an air outlet is provided in the middle of the dust cover, and a housing chamber for fan blades is formed between the dust cover and the end face of the housing.
As an improvement, the housing may preferably include a dust-proof end cap and a bracket, the mounting groove is located in the middle of the dust-proof end cap, the dust-proof end cap is fixed to the bracket by a screw, the stator assembly is connected to the bracket, and a limit groove for connecting a bearing of the rotor assembly is provided at the bottom of the bracket.
Further, a wave-shaped gasket which can clamp the bearing can be preferably arranged in the limiting groove.
Further improved, the support frame may be preferably detachably provided with a bottom frame, and the bottom frame is provided with a control circuit board, and the control circuit board is communicated with the stator assembly through a conductive inserting sheet.
Compared with the prior art, the utility model has the advantages that: the dust cover can fill a reserved space between the through hole of the shell and the rotating shaft, so that dust is prevented from entering the inner cavity of the shell from the position of the through hole of the shell, the inner cavity of the shell is kept clean, a good dust-isolating effect is achieved, and the service life of the brushless motor is prolonged; the rotor assembly is further provided with the first dustproof sheet and the second dustproof sheet, so that dustproof capacity of the brushless motor is further improved, cleanliness in an inner cavity of the stator assembly is kept, and service life of the brushless motor is further prolonged.
Drawings
FIG. 1 is a perspective view of an embodiment of the present utility model;
FIG. 2 is a perspective view of FIG. 1 at another angle;
FIG. 3 is a front perspective view of FIG. 2;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is an exploded view of the structure of FIG. 2;
FIG. 6 is a further exploded view of the structure of FIG. 5;
FIG. 7 is a further exploded view of FIG. 6;
FIG. 8 is a further exploded view of the dust cap, fan blade, and dust cap of FIG. 7, with the dust cap removed;
FIG. 9 is a further exploded view of the dust cap and rotor assembly of FIG. 8 with the dust cap and rotor assembly removed;
FIG. 10 is a perspective view of the dust cap of FIG. 7 at another angle;
fig. 11 is an enlarged view of the section I in fig. 4.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 11, the dustproof structure of the brushless motor of the present embodiment includes a stator assembly 1, a rotor assembly, and a housing, wherein the stator assembly 1 is installed in an inner cavity of the housing, and the stator assembly 1 includes a frame body and an iron core, and the specific structure thereof belongs to a known technology, so that description thereof will not be repeated. The rotor assembly is arranged in the stator assembly 1 in a penetrating way, the fan blade connecting end of the rotating shaft 2 of the rotor assembly extends out of the shell, the shell end face of the periphery of the shell through hole 31 extending out of the rotating shaft 2 is provided with a mounting groove 32, the mounting groove 32 is connected with a dust cover 4, and the middle part of the dust cover 4 is provided with a cover body through hole 41 penetrating through the rotating shaft 2. An annular protrusion 321 is provided on the bottom surface of the mounting groove 32, and an annular fitting groove 42 is provided on the bottom surface of the dust cover 4, and the protrusion 321 is engaged with the fitting groove 42. The diameter of the shell through hole 31 is larger than that of the rotating shaft 2, a cover body protrusion 43 is arranged in the middle of the bottom surface of the dust cover 4, the cover body protrusion 43 is buckled on the shell through hole 31, the bottom surface of the cover body protrusion 43 is in contact with the end surface of the first bearing 21 of the rotor assembly, and the cover body through hole 41 is positioned on the cover body protrusion 43.
A first dust-proof sheet 23 is sleeved on the rotating shaft 2, and the first dust-proof sheet 23 is positioned on the rotating shaft 2 between the first bearing 21 and the magnetic ring 25. A second dust-proof sheet 24 is sleeved on the rotating shaft 2, and the second dust-proof sheet 24 is positioned on the rotating shaft 2 between the second bearing 22 and the magnetic ring 25. A first balance ring 26 is arranged between the first dust-proof sheet 23 and the magnetic ring 25, the first balance ring 26 is attached to the end face of the magnetic ring 25, a second balance ring 27 is arranged between the second dust-proof sheet 24 and the magnetic ring 25, and the second balance ring 27 is attached to the other end face of the magnetic ring 25.
The end face of the housing is detachably connected with a dust cover 5, an air outlet 51 is arranged in the middle of the dust cover 5, and a containing cavity of fan blades 52 is formed between the dust cover 5 and the end face of the housing. The housing comprises a dustproof end cover 3 and a bracket 30, wherein a mounting groove 32 is arranged in the middle of the dustproof end cover 3, the dustproof end cover 32 is fixed with the bracket 30 through a screw, the stator assembly 1 is connected to the bracket 30, and a limiting groove for connecting the second bearing 22 of the rotor assembly is arranged at the bottom of the bracket 30. A wave washer 301 capable of clamping the second bearing 22 is provided in the limit groove. The support 30 is detachably provided with a bottom frame 6, the bottom frame 6 is provided with a control circuit board 7, and the control circuit board 7 is communicated with the stator assembly 1 through a conductive inserting sheet. The specific circuit structure of the control circuit board 7 belongs to the prior art and will not be described in detail.
Claims (10)
1. The utility model provides a dustproof construction of brushless motor, includes stator module (1), rotor subassembly, casing, stator module (1) are installed in the inner chamber of casing, rotor subassembly wears to put in stator module (1), and the casing, its characterized in that are stretched out to the flabellum link of rotor module's pivot (2): the dustproof device comprises a rotating shaft (2), and is characterized in that mounting grooves (32) are formed in the end faces of the shell, extending out of the periphery of a shell through hole (31) of the rotating shaft (2), of the rotating shaft, a dustproof cover (4) is connected in the mounting grooves (32), and a cover through hole (41) penetrating through the rotating shaft (2) is formed in the middle of the dustproof cover (4).
2. The dust-proof structure according to claim 1, wherein: an annular protruding portion (321) is arranged on the bottom surface of the mounting groove (32), an annular embedded groove (42) is arranged on the bottom surface of the dust cover (4), and the protruding portion (321) and the embedded groove (42) are clamped together.
3. The dust-proof structure according to claim 2, wherein: the diameter of the shell through hole (31) is larger than that of the rotating shaft (2), a cover body protrusion (43) is arranged in the middle of the bottom surface of the dust cover (4), the cover body protrusion (43) is buckled on the shell through hole (31), the bottom surface of the cover body protrusion (43) is in contact with the end surface of the first bearing (21) of the rotor assembly, and the cover body through hole (41) is located on the cover body protrusion (43).
4. A dust-proof structure according to claim 3, wherein: the rotating shaft (2) is sleeved with a first dustproof sheet (23), and the first dustproof sheet (23) is positioned on the rotating shaft (2) between the first bearing (21) and the magnetic ring (25).
5. The dust-proof structure according to claim 4, wherein: a second dustproof sheet (24) is sleeved on the rotating shaft (2), and the second dustproof sheet (24) is positioned on the rotating shaft (2) between the second bearing (22) and the magnetic ring (25).
6. The dust-proof structure according to claim 5, wherein: a first balance ring (26) is arranged between the first dustproof sheet (23) and the magnetic ring (25), the first balance ring (26) is attached to the end face of the magnetic ring (25), a second balance ring (27) is arranged between the second dustproof sheet (24) and the magnetic ring (25), and the second balance ring (27) is attached to the other end face of the magnetic ring (25).
7. A dust-proof structure according to any one of claims 1 to 6, wherein: the end face of the shell is detachably connected with a dust cover (5), an air outlet (51) is formed in the middle of the dust cover (5), and a containing cavity of fan blades (52) is formed between the dust cover (5) and the end face of the shell.
8. A dust-proof structure according to any one of claims 1 to 6, wherein: the shell comprises a dustproof end cover (3) and a support (30), wherein the mounting groove (32) is formed in the middle of the dustproof end cover (3), the dustproof end cover (3) is fixed with the support (30) through a screw, the stator assembly (1) is connected to the support (30), and a limit groove for connecting a bearing of the rotor assembly is formed in the bottom of the support (30).
9. The dust-proof structure according to claim 8, wherein: a wave-shaped gasket (301) capable of clamping the bearing is arranged in the limiting groove.
10. The dust-proof structure according to claim 8, wherein: the support (30) is detachably provided with a bottom frame (6), the bottom frame (6) is provided with a control circuit board (7), and the control circuit board (7) is communicated with the stator assembly (1) through a conductive inserting sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321335086.4U CN219875287U (en) | 2023-05-29 | 2023-05-29 | Dustproof structure of brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321335086.4U CN219875287U (en) | 2023-05-29 | 2023-05-29 | Dustproof structure of brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219875287U true CN219875287U (en) | 2023-10-20 |
Family
ID=88347508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321335086.4U Active CN219875287U (en) | 2023-05-29 | 2023-05-29 | Dustproof structure of brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219875287U (en) |
-
2023
- 2023-05-29 CN CN202321335086.4U patent/CN219875287U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108768070B (en) | Motor fan blade, brushless motor and rotor subassembly, food processor thereof | |
| CN113027794A (en) | Fan and cleaning equipment | |
| CN219875287U (en) | Dustproof structure of brushless motor | |
| CN211930393U (en) | Rotor, motor and fan | |
| CN210093005U (en) | Permanent magnet motor for battery car | |
| CN212085912U (en) | Outer rotor motor and electric tool | |
| CN211609472U (en) | Food processing machine | |
| CN220605650U (en) | Waterproof structure of dust collector motor | |
| CN212909180U (en) | High-stability motor | |
| CN212726613U (en) | Motor convenient to assemble | |
| CN210183149U (en) | Closed angle mill motor | |
| CN216714761U (en) | Mounting structure of electric fan and dust collector applying same | |
| CN218387031U (en) | Electric machine | |
| CN213990341U (en) | Motor fixing assembly, air duct assembly and household appliance | |
| CN220822767U (en) | Motor with protection function | |
| CN219327672U (en) | Axial flow fan | |
| CN216056565U (en) | Novel dry-wet dual-purpose brushless DC motor | |
| CN215897461U (en) | Motor for wall breaking machine | |
| CN215835265U (en) | Air cooling structure of motor | |
| CN210704658U (en) | Dustproof sealing structure and electric tool | |
| CN220401558U (en) | Small-sized motor | |
| CN214577794U (en) | Air guide assembly, fan and sweeper with same | |
| CN220452270U (en) | Handheld fan | |
| CN220754530U (en) | Motor sound insulation end cover | |
| CN220629060U (en) | Damping stable motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |