CN209516790U - A kind of dust-proof brushless motor - Google Patents
A kind of dust-proof brushless motor Download PDFInfo
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- CN209516790U CN209516790U CN201920051005.5U CN201920051005U CN209516790U CN 209516790 U CN209516790 U CN 209516790U CN 201920051005 U CN201920051005 U CN 201920051005U CN 209516790 U CN209516790 U CN 209516790U
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- dust
- brushless motor
- dustproof cover
- dustproof
- sealing lip
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Abstract
The utility model discloses a kind of dust-proof brushless motors, including casing, rotor assembly and stator module, the rotor assembly includes rotary shaft, the output end of the rotary shaft is equipped with cooling wind blade, the stator module is respectively arranged with preceding dustproof cover and rear dustproof cover in its front and back end, the first dustproof construction is provided between preceding dustproof cover and cooling wind blade, the second dustproof construction is provided between dustproof cover and casing afterwards, first dustproof construction includes on preceding dustproof cover and with the first sealing lip of concentric rotation axis setting and set on cooling wind blade and for the first closure gasket groove of the first sealing lip insertion, there is gap between the outboard sidewalls of first sealing lip and the first closure gasket groove, the dust-proof brushless motor can reduce the amount of dust entered between rotor assembly and stator module, help to extend the service life of dust-proof brushless motor.
Description
Technical field
The utility model relates to a kind of motors, more particularly to a kind of dust-proof brushless motor.
Background technique
Brushless motor is widely used in each electric appliances.In order to save the manufacturing cost of entire electric appliance, generally by nothing
The rotor assembly and stator module of brush motor are mounted in the shell of electric appliance.Wherein, in order to cool down to electric appliance inside,
It generally will be installed fan blade on the head of brushless motor, play the role of cooling.
But dustless motor at this stage is in the long-term use, the rotor core and stator core of dustless motor it
Between can have a large amount of dust, brushless motor operation during, rotor core and stator core are easy to happen mutual abrasion,
The physical life of brushless motor is influenced, therefore needs to develop a dust-proof brushless motor in place at this stage.
Utility model content
The purpose of the utility model is to provide a kind of dust-proof brushless motor, the dust-proof brushless motor, which can be reduced, to be entered
Amount of dust between rotor assembly and stator module, to help to extend the service life of dust-proof brushless motor.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of dust-proof brushless motor, including casing, rotor assembly and stator module, the rotor assembly include rotary shaft,
The stator module includes stator core, wire reeling rack, inserting rack and coil, and the output end of the rotary shaft is equipped with radiation air
Leaf, the stator module is respectively arranged with preceding dustproof cover and rear dustproof cover in its front and back end, between preceding dustproof cover and cooling wind blade
It is provided with the first dustproof construction, the second dustproof construction is provided between rear dustproof cover and casing, first dustproof construction includes
It is inserted on preceding dustproof cover and with the first sealing lip of concentric rotation axis setting and set on cooling wind blade and for the first sealing lip
, there is gap between the outboard sidewalls of the first sealing lip and the first closure gasket groove in the first closure gasket groove entered.
By using above-mentioned technical proposal, dust would generally pass through the gap between impeller and stator core, casing rear end
Gap between stator core enters between rotor core and stator core, thus the present invention by be arranged before dustproof cover,
Dustproof cover afterwards, and rotor core and stator are entered to reduce by the first dustproof construction of setting and the second dustproof construction
Amount of dust between iron core, to extend the physical life of dust-proof brushless motor.
Wherein, the first dustproof construction includes the first sealing lip and the first closure gasket groove, the first sealing of the first sealing lip insertion
In annular groove, wherein there are gaps between the first sealing lip and the first closure gasket groove, so that the first sealing lip can't be to radiation air
The rotation of leaf causes to interfere.
The utility model is further arranged to, and is deposited between the end of first sealing lip and the slot bottom of the first closure gasket groove
In fit clearance, and the range of fit clearance is between 1mm~2mm.
By using above-mentioned technical proposal, the setting and restriction of above-mentioned fit clearance, so that dust passes through the first dust-proof knot
Structure enters the reduction of the probability between rotor core and stator core, meanwhile, additionally aid the air of dust-proof brushless motor inner cavity
Circulation avoids dust-proof brushless motor because of pressure increase in inner cavity caused by generating heat.
The utility model is further arranged to, and rotation spline is fixed in the rotary shaft, and the cooling wind blade includes peace
Dress portion and the circumferential flabellum for being uniformly arranged on mounting portion lateral wall, mounting portion have with rotation spline fitted to realize cooling wind blade
The spline slot rotated synchronously with rotary shaft.
By using above-mentioned technical proposal, the setting of above structure realizes the synchronization between cooling wind blade and rotary shaft and turns
It is dynamic, and this fit system structure is simple, it is easy for installation.
The utility model is further arranged to, and first closure gasket groove is set to mounting portion.
By using above-mentioned technical proposal, the first closure gasket groove is arranged on the mounting portion of cooling wind blade, can reduce because
Open up the first closure gasket groove and the influence caused by the structure of cooling wind blade.
The utility model is further arranged to, and the wire reeling rack has the first coil holder bulge loop being arranged towards preceding dustproof cover,
The preceding dustproof cover has the first limiting slot being caught in for the first coil holder bulge loop.
By using above-mentioned technical proposal, since wire reeling rack and preceding dustproof cover are non-rotary structure, the two it
Between connection realized by the abutting of the first coil holder bulge loop and the first limiting slot, can be avoided dust and entered by the gap of the two
In the inner cavity of dust-proof brushless motor.
The utility model is further arranged to, second dustproof construction include set on rear dustproof cover the second sealing lip and
Anti-dust seat on casing, the anti-dust seat have for the second sealing lip against dustproof groove.
The anti-dust seat being arranged on casing by using above-mentioned technical proposal and rear dustproof cover cooperation can reduce enter it is anti-
The dust of dirt brushless motor inner cavity.Wherein, casing can be the shell of any electric appliance for being equipped with brushless motor.
The utility model is further arranged to, and the casing is additionally provided with bearing seat slot in the bottom of anti-dust seat, and described turn
The first swivel bearing with the cooperation of bearing seat slot is installed on son.
By using above-mentioned technical proposal, secondary rotor component is capable of in the cooperation of the first swivel bearing and bearing seat slot
Rotation, so that the rotation of rotor assembly is more steady.
The utility model is further arranged to, and the inserting rack has convex towards the second coil holder in rear dustproof cover society
Ring, the rear dustproof cover have the second limiting slot being caught in for the second coil holder bulge loop.
By using above-mentioned technical proposal, since inserting rack and rear dustproof cover are non-rotary structure, the two it
Between connection realized by the abutting of the second coil holder bulge loop and the second limiting slot, can be avoided dust and entered by the gap of the two
In the inner cavity of dust-proof brushless motor.
In conclusion the utility model has the following beneficial effects:
1, a kind of dust-proof brushless motor, by be provided between preceding dustproof cover and cooling wind blade the first dustproof construction and
The second dustproof construction is provided between rear dustproof cover and casing, to reduce the dust for entering dust-proof brushless motor inner cavity
Amount, reduces the probability worn between rotor core and stator core, to extend the use longevity of dust-proof brushless motor
Life；
2, the second dustproof construction includes the second sealing lip and dustproof groove, to realize to the anti-of the tail end of dust-proof brushless motor
Dirt reduces the amount of dust for entering dust-proof brushless motor inner cavity, reduces and wears between rotor core and stator core
Probability, to extend the service life of dust-proof brushless motor.
Detailed description of the invention
Fig. 1 is the diagrammatic cross-section of the dust-proof brushless motor in the utility model；
Fig. 2 is the enlarged drawing in Fig. 1 at A；
Fig. 3 is the enlarged drawing in Fig. 1 at B；
Fig. 4 is the enlarged drawing in Fig. 1 at C；
Fig. 5 is the enlarged drawing in Fig. 1 at D；
Fig. 6 is the structural schematic diagram of cooling wind blade in the utility model.
In figure: 2, rotor assembly；21, rotary shaft；22, rotor core；23, magnet steel；3, stator module；31, stator core；
32, wire reeling rack；321, the first coil holder bulge loop；33, inserting rack；331, the second coil holder bulge loop；34, coil；4, preceding dustproof cover；41,
First limiting slot；42, the first sealing lip；5, spline is rotated；6, cooling wind blade；61, mounting portion；611, spline slot；612,
One closure gasket groove；62, flabellum；63, fit clearance；7, rear dustproof cover；71, the second limiting slot；72, the second sealing lip；8, casing；
81, anti-dust seat；811, dustproof groove；813, bearing seat slot；9, the first swivel bearing.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Refering to attached drawing 1, a kind of dust-proof brushless motor, including casing 8, rotor assembly and stator module.Rotor assembly includes
Rotary shaft 21, the rotor core 22 being installed in rotary shaft 21 and the magnet steel 23 being installed on rotor core 22.Stator module
Including stator core 31, wire reeling rack 32, inserting rack 33 and coil 34.Wherein, stator core 31 is located at wire reeling rack 32 and inserting rack
Between 33, and wire reeling rack 32 is coaxially provided with the first coil holder bulge loop 321 in the side far from stator core 31, and inserting rack 33 is separate
The side of stator core 31 is coaxially provided with the second coil holder bulge loop 331.
Refering to attached drawing 1 and attached drawing 3, dust-proof brushless motor is additionally provided with the preceding dustproof cover 4 for being installed on wire reeling rack 32.Preceding dustproof cover
4 are provided with the first limiting slot 41 circumferentially abutted for 321 end of the first coil holder bulge loop in the side towards wire reeling rack 32, thus real
Sealed connection before existing between dustproof cover 4 and wire reeling rack 32.
Refering to attached drawing 1 and attached drawing 6, rotary shaft 21 has rotation spline 5 in the outside of preceding dustproof cover 4 interference fit and is rotating
The outside of spline 5 is provided with cooling wind blade 6.Radiator fan includes mounting portion 61 and is circumferentially uniformly arranged on 61 lateral wall of mounting portion
Flabellum 62, mounting portion 61 has and the cooperation of rotation spline 5 is to realize spline that cooling wind blade 6 and rotary shaft 21 rotate synchronously
Hole 611.
Refering to attached drawing 1 and attached drawing 2, the first dustproof construction is provided between preceding dustproof cover 4 and cooling wind blade 6.First is dust-proof
Structure include the first sealing lip 42 being coaxially disposed on the preceding dustproof cover 4 and with rotary shaft 21 and be set to cooling wind blade 6 and
For the first closure gasket groove 612 of the first sealing lip 42 insertion.Wherein, the first closure gasket groove 612 is set to the installation of radiator fan
In portion 61.There is gap between the outboard sidewalls of first sealing lip 42 and the first closure gasket groove 612；The end of first sealing lip 42
There are fit clearances 63 between portion and the slot bottom of the first closure gasket groove 612, and the range of fit clearance 63 is between 1mm~2mm.
Refering to attached drawing 1 and attached drawing 4, dust-proof brushless motor is additionally provided with the rear dustproof cover 7 for being installed on inserting rack 33.Dustproof cover afterwards
7 have the second limiting slot 71 circumferentially abutted for 331 end of the second coil holder bulge loop, thus dustproof cover 7 and inserting rack 33 after realizing
Between sealed connection.
Refering to attached drawing 1 and attached drawing 5, the second dustproof construction is provided between rear dustproof cover 7 and casing 8.Second dustproof construction
The second sealing lip 72 including being set to rear dustproof cover 7 and the anti-dust seat 81 on casing 8, anti-dust seat 81 have for the second sealing
Lip 72 against dustproof groove 811.Wherein, casing 8 is additionally provided with bearing seat slot 813 in the bottom of anti-dust seat 81, installs on rotor
There is the first swivel bearing 9 cooperated with bearing seat slot 813.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (8)
1. a kind of dust-proof brushless motor, including casing (8), rotor assembly and stator module, the rotor assembly include rotary shaft
(21), the stator module includes stator core (31), wire reeling rack (32), inserting rack (33) and coil (34), the rotation
The output end of axis (21) is equipped with cooling wind blade (6), which is characterized in that before the stator module is respectively arranged in its front and back end
Dustproof cover (4) and rear dustproof cover (7) are provided with the first dustproof construction between preceding dustproof cover (4) and cooling wind blade (6), rear dust-proof
Be provided with the second dustproof construction between lid (7) and casing (8), first dustproof construction include on preceding dustproof cover (4) and
It is inserted into first sealing lip (42) of rotary shaft (21) coaxial arrangement and set on cooling wind blade (6) and for the first sealing lip (42)
The first closure gasket groove (612), between existing between the outboard sidewalls and the first closure gasket groove (612) of the first sealing lip (42)
Gap.
2. a kind of dust-proof brushless motor according to claim 1, which is characterized in that the end of first sealing lip (42)
There are fit clearance (63) between the slot bottom of the first closure gasket groove (612), and the range of fit clearance (63) is in 1mm~2mm
Between.
3. a kind of dust-proof brushless motor according to claim 2, which is characterized in that be fixed with rotation on the rotary shaft (21)
Turn spline (5), the cooling wind blade (6) includes mounting portion (61) and the circumferential flabellum for being uniformly arranged on mounting portion (61) lateral wall
(62), mounting portion (61) has the flower that cooling wind blade (6) and rotary shaft (21) synchronous rotation are realized with rotation spline (5) cooperation
Dowel hole (611).
4. a kind of dust-proof brushless motor according to claim 3, which is characterized in that first closure gasket groove (612) sets
It is placed in mounting portion (61).
5. a kind of dust-proof brushless motor according to claim 1, which is characterized in that the wire reeling rack (32) has before
First coil holder bulge loop (321) of dustproof cover (4) setting, the preceding dustproof cover (4) has to be caught in for the first coil holder bulge loop (321)
First limiting slot (41).
6. a kind of dust-proof brushless motor according to claim 1, which is characterized in that second dustproof construction includes being set to
The second sealing lip (72) of dustproof cover (7) and the anti-dust seat (81) being set on casing (8), the anti-dust seat (81) have for the afterwards
Two sealing lips (72) against dustproof groove (811).
7. a kind of dust-proof brushless motor according to claim 6, which is characterized in that the casing (8) is in anti-dust seat (81)
Bottom be additionally provided with bearing seat slot (813), be equipped on the rotor with bearing seat slot (813) cooperation the first swivel bearing
(9)。
8. a kind of dust-proof brushless motor according to claim 1, which is characterized in that the inserting rack (33) has after
The second coil holder bulge loop (331) in dustproof cover (7) society, the rear dustproof cover (7) has to be caught in for the second coil holder bulge loop (331)
The second limiting slot (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920051005.5U CN209516790U (en) | 2019-01-12 | 2019-01-12 | A kind of dust-proof brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920051005.5U CN209516790U (en) | 2019-01-12 | 2019-01-12 | A kind of dust-proof brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209516790U true CN209516790U (en) | 2019-10-18 |
Family
ID=68200491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920051005.5U Active CN209516790U (en) | 2019-01-12 | 2019-01-12 | A kind of dust-proof brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209516790U (en) |
-
2019
- 2019-01-12 CN CN201920051005.5U patent/CN209516790U/en active Active
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