CN213402659U - External rotor motor - Google Patents
External rotor motor Download PDFInfo
- Publication number
- CN213402659U CN213402659U CN202022181469.3U CN202022181469U CN213402659U CN 213402659 U CN213402659 U CN 213402659U CN 202022181469 U CN202022181469 U CN 202022181469U CN 213402659 U CN213402659 U CN 213402659U
- Authority
- CN
- China
- Prior art keywords
- end cover
- shaft extension
- rotating shaft
- mounting
- outer rotor
- 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
Images
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses an external rotor motor, which comprises a rotating shaft, a stator component, an upper end cover and an external rotor component, wherein the stator component is sleeved outside the middle part of the rotating shaft, the external rotor component is sleeved outside the stator component, the upper end cover is arranged at the end part of the external rotor component and is connected together through a connecting piece, an upper bearing chamber and a lower bearing chamber are respectively arranged on the upper end cover and the external rotor component, an upper bearing and a lower bearing are respectively arranged in the upper bearing chamber and the lower bearing chamber, the rotating shaft is supported on the upper bearing and the lower bearing, a shaft extension hole is arranged on the upper end cover and is communicated with the upper bearing chamber, one end of the rotating shaft extends out of the shaft extension hole of the upper end cover to form a shaft extension end, a mounting plate is connected on the shaft extension end, a step is arranged on the shaft extension end, a sealing cover plate is arranged in the middle of the top surface of the upper end cover, the shaft extension hole is sealed by grease, the grease is, the sealing effect is good, and the working performance and the service life of the motor are improved.
Description
The technical field is as follows:
the utility model relates to an external rotor electric machine.
Background art:
the existing outer rotor motor comprises an outer rotor, an end cover, a stator and a rotating shaft, wherein the outer rotor is sleeved outside the stator, and a waterproof structure is arranged at the joint between the outer rotor and the end cover. Because the outer rotor rotates when the motor operates, the end cover, the stator and the rotating shaft are not moved, a certain gap must be ensured between the outer rotor and the end cover in order to ensure the free rotation of the outer rotor, the waterproof structure of the outer rotor cannot meet the ultrahigh protection requirement, the highest protection requirement can only reach the IP54 level, the sealing effect is poor, and the working performance and the service life of the motor are short.
The invention content is as follows:
the utility model aims at providing an external rotor electric machine, this structure waterproof dirt-proof is effectual, and is sealed effectual, improves motor working property and life-span.
The purpose of the utility model is realized by the following technical scheme.
A first object of the utility model is to provide an external rotor electric machine, which comprises a rotating shaft, stator module, upper end cover and external rotor assembly, the cover is equipped with stator module outside the pivot middle part, external rotor assembly suit stator module is outside, the upper end cover is installed outside rotor assembly tip and is linked together through the connecting piece, be equipped with upper bearing room and lower bearing room on upper end cover and the external rotor assembly respectively, install bearing and lower bearing in upper bearing room and the lower bearing room respectively, the pivot supports at upper bearing and lower bearing, be equipped with the axle on the upper end cover and stretch out the hole, the axle stretches out the hole and is linked together with the upper bearing room, the one end of pivot stretches out the hole from the axle of upper end cover and stretches out the end of formation axle, the axle stretches out to serve and is connected with: the middle of the top surface of the upper end cover is provided with a sealing cover plate which is used for sealing a shaft extension hole, grease is placed in the shaft extension hole, and a gap between the rotating shaft and the upper end cover is sealed by the grease to achieve the waterproof and dustproof effects.
The sealing cover plate is locked on the upper end cover through the screws, the sealing cover plate is provided with a plurality of first mounting holes, the upper end cover is provided with a plurality of second mounting holes corresponding to the first mounting holes of the sealing cover plate, and the screws are screwed into the first mounting holes and the second mounting holes to lock the sealing cover plate on the upper end cover.
The surface of the shaft extension end is provided with external threads, the inner side surface of the mounting plate is provided with internal threads, the shaft extension end is in threaded connection with the mounting plate, the shaft extension end is provided with a step, and the mounting plate is supported on the step.
The mounting plate is provided with a plurality of connecting holes for connecting loads.
And the outer surface of the outer rotor component is provided with a mounting flange.
The utility model provides an external rotor electric machine, which comprises a rotating shaft, stator module, the upper end cover, external rotor assembly, the pivot is connected together with stator module, external rotor assembly suit stator module is outer, the upper end cover is installed at external rotor assembly tip and is linked together through the connecting piece, be equipped with upper bearing room and lower bearing room on upper end cover and the external rotor assembly respectively, install bearing and lower bearing in upper bearing room and the lower bearing room respectively, the pivot supports at upper bearing and lower bearing, be equipped with the axle on the upper end cover and stretch out the hole, the axle stretches out the hole and stretches out the formation axle from the axle of upper end cover and stretches out the end, the axle is stretched and is served and be connected with the mounting panel, its characterized in that: be equipped with labyrinth seal structure between mounting panel and the upper end cover, bulge a plurality of interval distribution's annular lug on the top surface of upper end cover, form first recess between per two annular lugs, bulge a plurality of interval distribution's annular boss on the bottom surface of mounting panel, form the second recess between every annular boss, annular lug stretches into in the second recess, annular boss stretches into in first recess, it reaches waterproof dirt-proof effect to make to form labyrinth seal structure between mounting panel and the upper end cover.
The surface of the shaft extension end is provided with external threads, the inner side surface of the mounting plate is provided with internal threads, the shaft extension end is in threaded connection with the mounting plate, the shaft extension end is provided with a step, and the mounting plate is supported on the step.
The mounting plate is provided with a plurality of connecting holes for connecting loads.
And the outer surface of the outer rotor component is provided with a mounting flange.
Compared with the prior art, the utility model, following effect has:
1) the utility model provides an external rotor electric machine, which comprises a rotating shaft, stator module, upper end cover and external rotor assembly, the cover is equipped with stator module in the middle part of the pivot, external rotor assembly suit stator module is outer, the upper end cover is installed outside rotor assembly tip and is linked together through the connecting piece, be equipped with upper bearing room and lower bearing room on upper end cover and the external rotor assembly respectively, install bearing and lower bearing in upper bearing room and the lower bearing room respectively, the pivot supports at upper bearing and lower bearing, be equipped with the axle on the upper end cover and stretch out the hole, the axle stretches out the hole and stretches out the formation axle from the axle of upper end cover and stretches out the end, the axle is stretched and is served and be connected with the mounting panel, a serial communication port: the middle of the top surface of the upper end cover is provided with the sealing cover plate, the sealing cover plate seals the shaft extension hole, grease is placed in the shaft extension hole, and the grease seals the gap between the rotating shaft and the upper end cover to achieve the waterproof and dustproof effects, so that the sealing effect is good, the working performance of the motor is improved, and the service life of the motor is prolonged;
2) the utility model provides an external rotor electric machine, which comprises a rotating shaft, stator module, the upper end cover, external rotor assembly, the pivot is connected together with stator module, external rotor assembly suit stator module is outer, the upper end cover is installed at external rotor assembly tip and is linked together through the connecting piece, be equipped with upper bearing room and lower bearing room on upper end cover and the external rotor assembly respectively, install bearing and lower bearing in upper bearing room and the lower bearing room respectively, the pivot supports at upper bearing and lower bearing, be equipped with the axle on the upper end cover and stretch out the hole, the axle stretches out the hole and stretches out the formation axle from the axle of upper end cover and stretches out the end, the axle is stretched and is served and be connected with the mounting panel, its characterized in that: a labyrinth seal structure is arranged between the mounting plate and the upper end cover, a plurality of annular convex blocks distributed at intervals are protruded on the top surface of the upper end cover, a first groove is formed between every two annular convex blocks, a plurality of annular convex blocks distributed at intervals are protruded on the bottom surface of the mounting plate, a second groove is formed between every two annular convex blocks, the annular convex blocks extend into the second grooves, and the annular convex blocks extend into the first grooves, so that the labyrinth seal structure formed between the mounting plate and the upper end cover achieves the waterproof and dustproof effects, the sealing effect is good, the working performance of the motor is improved, and the service life of the motor is prolonged;
3) other advantages of the present invention will be described in detail in the examples section.
Description of the drawings:
fig. 1 is a perspective view provided in a first embodiment of the present invention;
fig. 2 is a partial exploded view provided in accordance with an embodiment of the present invention;
fig. 3 is an exploded view of a first embodiment of the present invention;
fig. 4 is a cross-sectional view of the first embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4;
fig. 6 is a perspective view provided by the second embodiment of the present invention;
fig. 7 is a partially exploded view provided in the second embodiment of the present invention;
fig. 8 is an exploded view provided in the second embodiment of the present invention;
fig. 9 is a cross-sectional view provided in the second embodiment of the present invention;
fig. 10 is a partial enlarged view of B in fig. 9.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the following detailed description of preferred embodiments and accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1 to 5, the present embodiment provides an external rotor motor, which includes a rotating shaft 1, a stator assembly 2, an upper end cap 3 and an external rotor assembly 4, the stator assembly 2 is sleeved outside the middle portion of the rotating shaft 1, the external rotor assembly 4 is sleeved outside the stator assembly 2, the upper end cap 3 is installed at the end portion of the external rotor assembly 4 and connected together through a connecting member, an upper bearing chamber 31 and a lower bearing chamber 41 are respectively provided on the upper end cap 3 and the external rotor assembly 4, an upper bearing 32 and a lower bearing 42 are respectively installed in the upper bearing chamber 31 and the lower bearing chamber 41, the rotating shaft 1 is supported on the upper bearing 32 and the lower bearing 42, a shaft extension hole 30 is provided on the upper end cap 3, the shaft extension hole 30 is communicated with the upper bearing chamber 31, one end of the rotating shaft 1 extends from the shaft extension hole 30 of the upper end cap 3 to form a shaft extension end 11, a mounting plate 7 is connected to the shaft extension end 11, the method is characterized in that: the middle of the top surface of the upper end cover 3 is provided with the sealing cover plate 8, the sealing cover plate 8 is used for sealing the shaft extension hole 30, the grease 301 is placed in the shaft extension hole 30, the grease 301 seals the gap between the rotating shaft 1 and the upper end cover 3 to achieve the waterproof and dustproof effects, the sealing effect is good, and the working performance and the service life of the motor are improved.
The utility model discloses a theory of operation: utilize pivot 1 hoist and mount on mounting panel 7, be equipped with a plurality of connecting holes 71 that are used for connecting the load on mounting panel 7, be convenient for be connected with the load, in operation, pivot 1 is motionless, stator module 2 installs and fixes on pivot 1, outer rotor module 4 gets up with upper end cover 3 fixed connection, utilize stator module 2 and outer rotor module 4 interact, outer rotor module 4 and upper end cover 3 revolute 1 rotation, because install sealed apron 8 in the middle of upper end cover 3's the top surface, 8 sealed apron covers the axle and stretches hole 30, grease 301 is placed to axle stretch hole 30 the inside, grease 301 lives the clearance between pivot 1 and the upper end cover 3 and seals up and reaches waterproof dirt-proof effect, and is sealed effectual, improve motor working property and life-span, moreover, the steam generator is simple in structure, easy manufacture, and convenient for installation.
The outer rotor assembly 4 includes a rotor core 42, a cast aluminum housing 44, and a conductive bar (not shown) embedded in the rotor core and the cast aluminum housing, the cast aluminum housing 44 is of a cylindrical configuration, and a lower bearing housing 41 is provided on an end surface 441 of the cast aluminum housing 44.
Sealed apron 8 passes through screw 6 to be locked on upper end cover 3, is equipped with a plurality of first mounting holes 81 on the sealed apron 8, is equipped with a plurality of second mounting holes 33 that correspond with a plurality of first mounting holes 81 of sealed apron 8 on the upper end cover 3, and screw 6 precession first mounting hole 81 and second mounting hole 33 will seal apron 8 and lock at upper end cover 3, and mounting structure is simple, and locking is firm.
The surface of the shaft extension end 11 is provided with external threads 13, the inner side surface of the mounting plate 7 is provided with internal threads 70, the shaft extension end 11 is in threaded connection with the mounting plate 7, the connecting structure is simple, and the mounting is firm.
The mounting plate 7 is provided with a plurality of connecting holes 71 for connecting loads, so that the mounting plate is convenient to connect with the loads, the structure is simple, and the arrangement is reasonable.
And the outer surface of the outer rotor component 4 is provided with a mounting flange 43, so that the mounting structure is simple.
Example two:
as shown in fig. 6 to 10, an external rotor motor comprises a rotating shaft 1, a stator assembly 2, an upper end cover 3, and an external rotor assembly 4, wherein the rotating shaft 1 is connected with the stator assembly 2, the external rotor assembly 4 is sleeved outside the stator assembly 2, the upper end cover 3 is installed at the end of the external rotor assembly 4 and is connected together through a connecting piece, an upper bearing chamber 31 and a lower bearing chamber 41 are respectively arranged on the upper end cover 3 and the external rotor assembly 4, an upper bearing 32 and a lower bearing 42 are respectively installed in the upper bearing chamber 31 and the lower bearing chamber 41, the rotating shaft 1 is supported on the upper bearing 32 and the lower bearing 42, a shaft extension hole 30 is arranged on the upper end cover 3, the shaft extension hole 30 is communicated with the upper bearing chamber 31, one end of the rotating shaft 1 extends out of the shaft extension hole 30 of the upper end cover 3 to form a shaft extension end 11, a mounting plate 7 is connected to the shaft extension end 11, a step, the method is characterized in that: be equipped with labyrinth seal structure between mounting panel 7 and the upper end cover 3, a plurality of interval distribution's of protrusion annular lug 35 on the top surface 34 of upper end cover 3, form first recess 36 between per two annular lug 35, a plurality of interval distribution's of protrusion annular boss 73 on the bottom surface 72 of mounting panel 7, form second recess 74 between every annular boss 73, annular lug 35 stretches into in second recess 74, annular boss 73 stretches into in first recess 36, it reaches waterproof dirt-proof effect to make to form labyrinth seal structure between mounting panel 7 and the upper end cover 3, it is sealed effectual, improve motor working property and life-span.
The surface of the shaft extension end 11 is provided with external threads 13, the inner side surface of the mounting plate 7 is provided with internal threads 70, the shaft extension end 11 is in threaded connection with the mounting plate 7, the connecting structure is simple, and the mounting is firm.
The mounting plate 7 is provided with a plurality of connecting holes 71 for connecting loads, so that the mounting plate is convenient to connect with the loads, the structure is simple, and the arrangement is reasonable.
And the outer surface of the outer rotor component 4 is provided with a mounting flange 43, so that the mounting structure is simple.
The outer rotor assembly 4 includes a rotor core 42, a cast aluminum housing 44, and a conductive bar (not shown) embedded in the rotor core and the cast aluminum housing, the cast aluminum housing 44 is of a cylindrical configuration, and a lower bearing housing 41 is provided on an end surface 441 of the cast aluminum housing 44.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention are equivalent replacement modes, and are all included in the scope of the present invention.
Claims (9)
1. An outer rotor motor comprises a rotating shaft (1), a stator component (2), an upper end cover (3) and an outer rotor component (4), wherein the stator component (2) is sleeved outside the middle of the rotating shaft (1), the outer rotor component (4) is sleeved outside the stator component (2), the upper end cover (3) is installed at the end part of the outer rotor component (4) and connected together through a connecting piece, an upper bearing chamber (31) and a lower bearing chamber (41) are respectively arranged on the upper end cover (3) and the outer rotor component (4), an upper bearing (32) and a lower bearing (42) are respectively installed in the upper bearing chamber (31) and the lower bearing chamber (41), the rotating shaft (1) is supported on the upper bearing (32) and the lower bearing (42), a shaft extension hole (30) is formed in the upper end cover (3), the shaft extension hole (30) is communicated with the upper bearing chamber (31), one end of the rotating shaft (1) extends out of the shaft extension hole (30) of the upper end cover (3, be connected with mounting panel (7), its characterized in that on axle extension end (11): the middle of the top surface (34) of the upper end cover (3) is provided with the sealing cover plate (8), the sealing cover plate (8) covers the shaft extension hole (30), grease (301) is placed in the shaft extension hole (30), and the grease (301) seals a gap between the rotating shaft (1) and the upper end cover (3) to achieve the waterproof and dustproof effects.
2. The external rotor electric machine according to claim 1, wherein: sealed apron (8) are locked on upper end cover (3) through screw (6), are equipped with a plurality of first mounting holes (81) on sealed apron (8), are equipped with a plurality of second mounting holes (33) that correspond with a plurality of first mounting holes (81) of sealed apron (8) on upper end cover (3), and screw (6) precession first mounting hole (81) and second mounting hole (33), will seal apron (8) and lock upper end cover (3).
3. The external rotor electric machine according to claim 1 or 2, wherein: the surface of the shaft extension end (11) is provided with external threads (13), the inner side surface of the mounting plate (7) is provided with internal threads (70), the shaft extension end (11) is in threaded connection with the mounting plate (7), the shaft extension end (11) is provided with steps (12), and the mounting plate (7) is supported on the bearing steps (12).
4. The external rotor motor according to claim 3, wherein the mounting plate (7) is provided with a plurality of connection holes (71) for connecting a load.
5. The external rotor electric machine according to claim 3, wherein: and the outer surface of the outer rotor component (4) is provided with a mounting flange (43).
6. An outer rotor motor comprises a rotating shaft (1), a stator assembly (2), an upper end cover (3) and an outer rotor assembly (4), wherein the rotating shaft (1) is connected with the stator assembly (2), the outer rotor assembly (4) is sleeved outside the stator assembly (2), the upper end cover (3) is installed at the end part of the outer rotor assembly (4) and is connected together through a connecting piece, an upper bearing chamber (31) and a lower bearing chamber (41) are respectively arranged on the upper end cover (3) and the outer rotor assembly (4), an upper bearing (32) and a lower bearing (42) are respectively installed in the upper bearing chamber (31) and the lower bearing chamber (41), the rotating shaft (1) is supported on the upper bearing (32) and the lower bearing (42), a shaft extension hole (30) is formed in the upper end cover (3), the shaft extension hole (30) is communicated with the upper bearing chamber (31), one end of the rotating shaft (1) extends out of the shaft extension hole (30) of the upper end cover (3) to, be connected with mounting panel (7), its characterized in that on axle extension end (11): be equipped with labyrinth seal structure between mounting panel (7) and upper end cover (3), the annular lug (35) of a plurality of interval distribution of protrusion on top surface (34) of upper end cover (3), form first recess (36) between per two annular lug (35), the annular boss (73) of a plurality of interval distribution of protrusion on bottom surface (72) of mounting panel (7), form second recess (74) between every annular boss (73), annular lug (35) stretch into in second recess (74), annular boss (73) stretch into in first recess (36), it reaches waterproof dirt-proof effect to make to form labyrinth seal structure between mounting panel (7) and upper end cover (3).
7. The external rotor electric machine according to claim 6, wherein: the surface of the shaft extension end (11) is provided with external threads (13), the inner side surface of the mounting plate (7) is provided with internal threads (70), the shaft extension end (11) is in threaded connection with the mounting plate (7), the shaft extension end (11) is provided with steps (12), and the mounting plate (7) is supported on the bearing steps (12).
8. The external rotor motor according to claim 7, wherein the mounting plate (7) is provided with a plurality of connection holes (71) for connecting a load.
9. The external rotor electric machine according to claim 7, wherein: and the outer surface of the outer rotor component (4) is provided with a mounting flange (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022181469.3U CN213402659U (en) | 2020-09-29 | 2020-09-29 | External rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022181469.3U CN213402659U (en) | 2020-09-29 | 2020-09-29 | External rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213402659U true CN213402659U (en) | 2021-06-08 |
Family
ID=76185024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022181469.3U Active CN213402659U (en) | 2020-09-29 | 2020-09-29 | External rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213402659U (en) |
-
2020
- 2020-09-29 CN CN202022181469.3U patent/CN213402659U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202026185U (en) | Waterproof and dust-proof structure for motor | |
| CN213402659U (en) | External rotor motor | |
| CN208738952U (en) | A kind of motor end cover sealing device | |
| CN216519577U (en) | Mechanical sealing element convenient to change sealing washer | |
| CN214850731U (en) | Take outer rotor electric machine of waterproof construction | |
| CN108566017B (en) | Motor capable of effectively preventing shaft current from ablating bearing | |
| CN210468978U (en) | Sealing structure of motor | |
| CN210780313U (en) | Permanent magnet synchronous motor and automobile applying same | |
| CN210577988U (en) | External rotor motor | |
| CN213125694U (en) | Water pump motor drainage structures | |
| CN210744893U (en) | Self-lubricating motor | |
| CN216530794U (en) | Motor with novel sealing structure | |
| CN216530796U (en) | Motor structure | |
| CN211259107U (en) | Immersible pump machine seals convenient to installation | |
| CN220168161U (en) | Sealing structure of Roots vacuum pump | |
| CN217282474U (en) | Direct-drive torque inner rotor motor | |
| CN218216921U (en) | Bearing assembly structure of vibration motor | |
| CN211901519U (en) | Gear box and speed reducer | |
| CN213243700U (en) | Sealing structure of permanent magnet motor | |
| CN216530777U (en) | Outer rotor assembly and outer rotor motor using same | |
| CN211127372U (en) | Heat dissipation motor end cover for new energy electric automobile | |
| CN221202262U (en) | Vibrating motor oil filler hole structure | |
| CN111058240B (en) | Washing machine outer barrel bottom and washing machine | |
| CN221127012U (en) | Outer rotor motor | |
| CN215733791U (en) | External rotor motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |