CN217741413U - External rotor motor - Google Patents
External rotor motor Download PDFInfo
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- CN217741413U CN217741413U CN202221745230.7U CN202221745230U CN217741413U CN 217741413 U CN217741413 U CN 217741413U CN 202221745230 U CN202221745230 U CN 202221745230U CN 217741413 U CN217741413 U CN 217741413U
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- groove
- bottom plate
- insulating support
- casing
- external rotor
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Abstract
The utility model discloses an external rotor electric machine, including motor part and automatically controlled part, the motor part includes the pivot, stator module, external rotor and cover cylinder seat, the cover cylinder seat includes the bottom plate and goes up bellied sleeve from the bottom plate centre, automatically controlled part includes casing and control circuit board, the casing is installed on the bottom surface of bottom plate and form the controller cavity between casing and the bottom plate, be equipped with the annular mounting groove on the bottom surface of bottom plate, the outside edge of annular mounting groove is equipped with a plurality of water drainage tank, water drainage tank and annular mounting groove are the intercommunication, be equipped with the location lug in the annular mounting groove, be equipped with the positioning groove who corresponds with the location lug on the terminal surface of casing, the annular mounting groove of inlaying at the bottom plate is inlayed at the top of casing, the location lug inlays the dress in the positioning groove, the simple structure, the location is effectual, simple to operate, through the ponding discharge of water drainage tank with the annular mounting groove, thereby improve the leakproofness between motor part and the automatically controlled part better, guarantee external rotor electric machine normal operating.
Description
The technical field is as follows:
the utility model relates to an external rotor electric machine.
Background art:
the existing external rotor motor comprises a motor and a control box; the motor comprises a rotating shaft, a stator assembly, an outer rotor and a sleeve seat, wherein the sleeve seat comprises a bottom plate and a sleeve protruding upwards from the middle of the bottom plate, bearing chambers are formed in two ends of the sleeve, bearings are installed in the bearing chambers, the stator assembly is sleeved outside the sleeve, the outer rotor is sleeved outside the stator assembly and comprises a casing sleeve, a top plate and a plurality of permanent magnets, the top plate is arranged at the top of the casing sleeve, the permanent magnets are installed on the inner wall surface of the casing sleeve, and the casing sleeve, the top plate and the bottom plate enclose a motor inner cavity; the electric control part comprises a shell and a control circuit board, the shell is arranged on the bottom surface of the bottom plate, a controller cavity is formed between the shell and the bottom plate, and the control circuit board is arranged in the controller cavity; the bottom plate and the shell are locked through the screws, and the outer rotor motor works for a long time, so that rainwater can seep from the bottom plate of the motor and the shell of the control box, and the motor is caused to be in short circuit failure.
The invention content is as follows:
the utility model aims at providing an external rotor electric machine can solve among the prior art because external rotor electric machine is long-term work outside, and the discovery rainwater can be followed the bottom plate of motor and the infiltration between the casing of control box, leads to causing the technical problem that the motor short circuit became invalid.
The purpose of the utility model is realized by the following technical proposal.
The utility model aims at providing an external rotor electric machine, including motor part and automatically controlled part, wherein:
the motor part comprises a rotating shaft, a stator component, an outer rotor and a sleeve seat, wherein the sleeve seat comprises a bottom plate and a sleeve which protrudes upwards from the middle of the bottom plate, bearing chambers are formed at two ends of the sleeve, bearings are installed in the bearing chambers, the stator component is sleeved outside the sleeve, the outer rotor is sleeved outside the stator component and comprises a casing sleeve, a top plate and a plurality of permanent magnets, the top plate is arranged at the top of the casing sleeve, the permanent magnets are installed on the inner wall surface of the casing sleeve, and the casing sleeve, the top plate and the bottom plate enclose a motor inner cavity;
the electric control part comprises a shell and a control circuit board, the shell is arranged on the bottom surface of the bottom plate, a controller cavity is formed between the shell and the bottom plate, and the control circuit board is arranged in the controller cavity;
the method is characterized in that: the bottom surface of the bottom plate is provided with an annular mounting groove, the outer edge of the annular mounting groove is provided with a plurality of water drainage grooves, the water drainage grooves are communicated with the annular mounting groove, a positioning lug is arranged in the annular mounting groove, the end face of the shell is provided with a positioning groove corresponding to the positioning lug, the top of the shell is embedded in the annular mounting groove of the bottom plate, and the positioning lug is embedded in the positioning groove.
The top of annular mounting groove be equipped with the seal groove, install the sealing washer in the seal groove, when the casing is installed on the bottom plate, the top of casing compresses tightly the sealing washer in the seal groove.
Above-mentioned stator module include stator core, the tip is insulating, coil winding and groove insulating part, stator core includes yoke portion and a plurality of tooth, two adjacent tooth form the rule groove, at rule groove inside mounting groove insulating part, the both ends face at stator core is installed to the tip insulation, stator core is last to be rolled up coil winding and utilize groove insulating part and the insulating isolating coil winding of tip and stator core, the tip insulation includes that yoke portion is insulating and a plurality of tooth are insulating, yoke portion is insulating to be located outside yoke portion, the tooth is insulating to be located outside the tooth, the bottom both sides of the insulating tooth head portion of tooth are equipped with the recess, the tip of groove insulating part inlays the dress in the recess.
And chamfer angles are arranged on two sides of the bottom of the tooth head part with the insulated tooth part and close to the insulated edge of the tooth part.
The top of the outer edge of the yoke part insulation outwards extends to form a plurality of positioning bosses, and the positioning bosses and the tooth parts are distributed at intervals.
The stator module still include insulating support, insulating support installs on the insulating top of tip, is equipped with the storage tank that can supply the installation of hall circuit board on the insulating support, is equipped with the inserting groove of installation on the insulating support, cartridge binding post on the inserting groove, the inboard of insulating support is equipped with the line groove.
The inboard of insulating support be equipped with a plurality of first draw-in grooves, the protruding annular boss in the middle of yoke portion is insulating, be equipped with the first buckle that corresponds with first draw-in groove on the annular boss, insulating support installs on the tip is insulating, first buckle is at first draw-in groove, makes insulating support fix on the tip is insulating.
The insulating support is characterized in that a plurality of second buckles are arranged at the bottom of the outer side of the insulating support, a mounting boss protrudes from the top of the tooth head part with an insulating tooth part, a second clamping groove matched with the second buckles correspondingly is formed in the edge of the outer side of the local mounting boss, the insulating support is mounted on the end part insulator, and the second buckles are buckled in the second clamping groove, so that the insulating support is fixed on the end part insulator.
The insulating support is provided with a plurality of lightening holes.
The inner side of the insulating support is provided with a plurality of notches, the annular boss is provided with positioning columns which are correspondingly matched with the notches, the insulating support is arranged on the end portion insulator, and the positioning columns are clamped in the notches.
Compared with the prior art, the utility model, following effect has:
1) An external rotor electric machine comprising a motor portion and an electric control portion, wherein: the motor part comprises a rotating shaft, a stator component, an outer rotor and a sleeve seat, wherein the sleeve seat comprises a bottom plate and a sleeve which protrudes upwards from the middle of the bottom plate, bearing chambers are formed at two ends of the sleeve, bearings are installed in the bearing chambers, the stator component is sleeved outside the sleeve, the outer rotor is sleeved outside the stator component and comprises a casing sleeve, a top plate and a plurality of permanent magnets, the top plate is arranged at the top of the casing sleeve, the permanent magnets are installed on the inner wall surface of the casing sleeve, and the casing sleeve, the top plate and the bottom plate enclose a motor inner cavity; the electric control part comprises a shell and a control circuit board, the shell is arranged on the bottom surface of the bottom plate, a controller cavity is formed between the shell and the bottom plate, and the control circuit board is arranged in the controller cavity; the method is characterized in that: be equipped with the annular mounting groove on the bottom surface of bottom plate, the outside edge of annular mounting groove is equipped with a plurality of water drainage tank, water drainage tank and annular mounting groove are the intercommunication, be equipped with the positioning lug in the annular mounting groove, be equipped with the positioning groove who corresponds with the positioning lug on the terminal surface of casing, the top of casing inlays the dress in the annular mounting groove of bottom plate, the positioning lug inlays the dress in positioning groove, the steam generator is simple in structure, location effect is good, simple to operate, through water drainage tank with the ponding discharge of annular mounting groove, thereby improve the leakproofness between motor part and the automatically controlled part better, guarantee external rotor motor normal operating.
2) 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 by the present invention;
fig. 2 is another perspective view of the present invention;
fig. 3 is an exploded view of the motor part and the electric control part provided by the present invention;
fig. 4 is another exploded perspective view of the motor and the electric control unit provided by the present invention;
fig. 5 is a partially exploded view of the motor provided by the present invention;
fig. 6 is another exploded perspective view of the motor part provided by the present invention;
fig. 7 is a schematic structural view of a stator assembly provided by the present invention;
fig. 8 is an exploded view of a stator assembly provided by the present invention;
fig. 9 is another exploded view of the stator assembly provided by the present invention;
fig. 10 is a schematic view of a partial structure of a stator assembly provided by the present invention;
FIG. 11 is an enlarged view of a portion of FIG. 10;
fig. 12 is a partial exploded view of a stator assembly provided by the present invention;
fig. 13 is a schematic view of an end insulation structure provided by the present invention;
fig. 14 is a perspective view of a sleeve mount provided by the present invention;
fig. 15 is another perspective view of the sleeve mount provided by the present invention;
fig. 16 is a perspective view of a stator core and slot insulator provided by the present invention.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to specific embodiments and drawings.
As shown in fig. 1 to 16, the present embodiment provides an external rotor motor, including a motor portion 10 and an electric control portion 20, wherein:
the motor part 10 comprises a rotating shaft 1, a stator assembly 2, an outer rotor 3 and a sleeve seat 4, wherein the sleeve seat 4 comprises a bottom plate 41 and a sleeve 42 which protrudes upwards from the middle of the bottom plate 41, bearing chambers 421 are arranged at two ends of the sleeve 42, bearings are arranged in the bearing chambers 421, the stator assembly 2 is sleeved outside the sleeve 42, the outer rotor 3 is sleeved outside the stator assembly 2, the outer rotor 3 comprises a casing sleeve 31, a top plate 32 and a plurality of permanent magnets 34, the top plate 32 is arranged at the top of the casing sleeve 31, the permanent magnets 34 are arranged on the inner wall surface of the casing sleeve 31, and the casing sleeve 31, the top plate 32 and the bottom plate 41 enclose a motor inner cavity;
the electric control part 20 comprises a shell 201 and a control circuit board 202, wherein the shell 201 is installed on the bottom surface of the bottom plate 41, a controller cavity 203 is formed between the shell 201 and the bottom plate 41, and the control circuit board 202 is installed in the controller cavity 203;
the method is characterized in that: be equipped with annular mounting groove 411 on bottom plate 41's the bottom surface, the outside edge of annular mounting groove 411 is equipped with a plurality of water drainage tank 412, water drainage tank 412 is the intercommunication with annular mounting groove 411, be equipped with positioning bump 413 in the annular mounting groove 411, be equipped with the positioning groove 2011 that corresponds with positioning bump 413 on the terminal surface of casing 201, the top of casing 201 inlays the dress in annular mounting groove 411 of bottom plate 41, positioning bump 413 inlays the dress in positioning groove 2011, the steam generator is simple in structure, the location is effectual, high durability and convenient installation, through the ponding discharge of water drainage tank with annular mounting groove, thereby improve the leakproofness between motor part and the electric control part better, guarantee external rotor motor normal operating.
The top of the annular mounting groove 411 is provided with a sealing groove 414, a sealing ring 415 is mounted in the sealing groove 414, and when the housing 201 is mounted on the bottom plate 41, the top of the housing 201 presses the sealing ring 415 in the sealing groove 414, so that the sealing effect is good.
The stator assembly 2 comprises a stator core 21, end insulators 22, coil windings 23 and slot insulators 24, the stator core 21 comprises a yoke portion 211 and a plurality of tooth portions 212, adjacent two tooth portions 212 form a slot 213, the slot insulators 24 are mounted in the slot 213, the end insulators 22 are mounted on two end faces of the stator core 21, the coil windings 23 are wound on the stator core 21, the coil windings 23 and the stator core 21 are isolated by the slot insulators 24 and the end insulators 22, the end insulators 22 comprise a yoke portion insulator 221 and a plurality of tooth portion insulators 222, the yoke portion insulator 221 is located outside the yoke portion 211, the tooth portion insulators 222 are located outside the tooth portions 212, grooves 2222 are formed in two sides of the bottom of a tooth head portion 2221 of each tooth portion insulator 222, and end portions of the slot insulators 24 are embedded in the grooves 2222.
The chamfer 2223 is arranged on the two sides of the bottom of the tooth head 2221 of the tooth part insulator 222 and close to the tooth part insulator 222, so that the structural arrangement is reasonable, and the installation of the slot insulator 24 is facilitated.
The top of the outer edge of the yoke insulator 221 extends outwards to form a plurality of positioning bosses 2211, and the positioning bosses 2211 and the tooth insulators 222 are distributed at intervals, so that the structural arrangement is reasonable, and the slot insulator 24 can be conveniently installed and positioned.
The inner side of the insulating support 25 is provided with the first clamping grooves 254, the middle of the yoke insulator 221 protrudes out of the annular boss 2212, the annular boss 2212 is provided with the first buckles 2213 corresponding to the first clamping grooves 254, the insulating support 25 is installed on the end insulator 22, the first buckles 2213 are buckled on the first clamping grooves 254, the insulating support 25 is fixed on the end insulator 22, and the mounting structure is simple and firm.
The bottom of the outer side of the insulating support 25 is provided with a plurality of second buckles 255, the top of the tooth head 2221 of the tooth insulator 222 protrudes with a mounting boss 2224, wherein the outer edge of a part of the mounting boss 2224 is provided with a second locking groove 2225 correspondingly matched with the second buckles 255, the insulating support 25 is mounted on the end insulator 22, and the second buckles 255 are locked in the second locking grooves 2225, so that the insulating support 25 is fixed on the end insulator 22, and the mounting structure is simple and firm.
The insulating support 25 is provided with a plurality of lightening holes 256, so that the weight of the insulating support is reduced.
The inner side of the insulating support 25 is provided with a plurality of notches 257, the annular boss 2212 is provided with positioning columns 2214 correspondingly matched with the notches 257, the insulating support 25 is installed on the end portion insulator 22, the positioning columns 2214 are clamped in the notches 257, and the mounting structure is simple and good in positioning effect.
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 (10)
1. An external rotor electric machine comprising a motor portion (10) and an electric control portion (20), wherein:
the motor part (10) comprises a rotating shaft (1), a stator assembly (2), an outer rotor (3) and a sleeve seat (4), wherein the sleeve seat (4) comprises a bottom plate (41) and a sleeve (42) protruding upwards from the middle of the bottom plate (41), bearing chambers (421) are formed in two ends of the sleeve (42), bearings are installed in the bearing chambers (421), the stator assembly (2) is sleeved outside the sleeve (42), the outer rotor (3) is sleeved outside the stator assembly (2), the outer rotor (3) comprises a casing sleeve (31), a top plate (32) and a plurality of permanent magnets (34), the top plate (32) is arranged at the top of the casing sleeve (31), the plurality of permanent magnets (34) are installed on the inner wall surface of the casing sleeve (31), the top plate (32) and the bottom plate (41) enclose a motor inner cavity, one end of the rotating shaft (1) is connected with the middle of the top plate (32), and the rotating shaft (1) is supported and installed on the bearings;
the electric control part (20) comprises a shell (201) and a control circuit board (202), the shell (201) is installed on the bottom surface of the bottom plate (41), a controller cavity (203) is formed between the shell (201) and the bottom plate (41), and the control circuit board (202) is installed in the controller cavity (203);
the method is characterized in that: be equipped with annular mounting groove (411) on the bottom surface of bottom plate (41), the outside edge of annular mounting groove (411) is equipped with a plurality of water drainage tank (412), water drainage tank (412) and annular mounting groove (411) are the intercommunication, be equipped with location lug (413) in annular mounting groove (411), be equipped with positioning groove (2011) that correspond with location lug (413) on the terminal surface of casing (201), the top of casing (201) is inlayed and is adorned in annular mounting groove (411) of bottom plate (41), location lug (413) are inlayed and are adorned in positioning groove (2011).
2. An external rotor electric machine as claimed in claim 1, wherein: the top of annular mounting groove (411) is equipped with seal groove (414), installs sealing washer (415) in seal groove (414), installs on bottom plate (41) when casing (201), and sealing washer (415) are compressed tightly in seal groove (414) to the top of casing (201).
3. An external rotor electric machine according to claim 1 or 2, wherein: stator module (2) includes stator core (21), end insulation (22), coil winding (23) and slot insulation (24), stator core (21) includes yoke portion (211) and a plurality of tooth portion (212), adjacent two tooth portion (212) form rule groove (213), slot insulation (24) is installed to rule groove (213) the inside, end insulation (22) are installed at the both ends face of stator core (21), stator core (21) go up to coil winding (23) and utilize slot insulation (24) and end insulation (22) to keep apart coil winding (23) and stator core (21), end insulation (22) include yoke portion insulation (221) and a plurality of tooth portion insulation (222), yoke portion insulation (221) is located outside yoke portion (211), tooth portion insulation (222) is located outside tooth portion (212), the bottom both sides of tooth portion (2221) of tooth portion insulation (222) are equipped with recess (2222), the tip of slot insulation (24) inlays in recess (2222).
4. An external rotor electric machine as claimed in claim 3, wherein: chamfers (2223) are arranged on two sides of the bottom of the tooth head part (2221) of the tooth part insulator (222) and close to the tooth part insulator (222).
5. The external rotor electric machine according to claim 4, wherein: the top of the outer edge of the yoke insulator (221) extends outwards to form a plurality of positioning bosses (2211), and the positioning bosses (2211) and the tooth insulators (222) are distributed at intervals.
6. The external rotor electric machine according to claim 5, wherein: stator module (2) still includes insulating support (25), and insulating support (25) are installed on the top of end insulation (22), are equipped with storage tank (251) that can supply the installation of hall circuit board on insulating support (25), are equipped with inserting groove (252) of installation on insulating support (25), and inserting binding post (26) are gone up in inserting groove (252), and the inboard of insulating support (25) is equipped with wire passing groove (253).
7. An external rotor electric machine as claimed in claim 6, wherein: the inboard of insulating support (25) is equipped with a plurality of first draw-in grooves (254), and protruding annular boss (2212) in the middle of yoke portion is insulating (221), is equipped with first buckle (2213) that correspond with first draw-in groove (254) on annular boss (2212), and insulating support (25) are installed on tip is insulating (22), and first buckle (2213) buckle is at first draw-in groove (254), makes insulating support (25) fix on tip is insulating (22).
8. An external rotor electric machine as claimed in claim 7, wherein: the bottom of the outer side of the insulating support (25) is provided with a plurality of second buckles (255), the top of a tooth head (2221) of the tooth part insulator (222) is provided with a mounting boss (2224) in a protruding mode, the outer side edge of the local mounting boss (2224) is provided with a second clamping groove (2225) correspondingly matched with the second buckles (255), the insulating support (25) is mounted on the end insulator (22), and the second buckles (255) are buckled on the second clamping groove (2225) so that the insulating support (25) is fixed on the end insulator (22).
9. The external rotor electric machine according to claim 8, wherein: a plurality of lightening holes (256) are arranged on the insulating bracket (25).
10. An external rotor electric machine as claimed in claim 9, wherein: a plurality of notches (257) are formed in the inner side of the insulating support (25), positioning columns (2214) which are correspondingly matched with the notches (257) are arranged on the annular boss (2212), the insulating support (25) is installed on the end portion insulator (22), and the positioning columns (2214) are clamped in the notches (257).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221745230.7U CN217741413U (en) | 2022-07-06 | 2022-07-06 | External rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221745230.7U CN217741413U (en) | 2022-07-06 | 2022-07-06 | External rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217741413U true CN217741413U (en) | 2022-11-04 |
Family
ID=83844087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221745230.7U Active CN217741413U (en) | 2022-07-06 | 2022-07-06 | External rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217741413U (en) |
-
2022
- 2022-07-06 CN CN202221745230.7U patent/CN217741413U/en active Active
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