CN216530859U - External rotor motor - Google Patents
External rotor motor Download PDFInfo
- Publication number
- CN216530859U CN216530859U CN202122640323.5U CN202122640323U CN216530859U CN 216530859 U CN216530859 U CN 216530859U CN 202122640323 U CN202122640323 U CN 202122640323U CN 216530859 U CN216530859 U CN 216530859U
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- Prior art keywords
- heat dissipation
- plate
- sleeve
- bottom plate
- electric control
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model discloses an external rotor motor, which comprises a motor part and an electric control part, wherein a sleeve part axially extends out of the edge of a bottom plate, an opening of the sleeve part is covered by a baffle plate, the bottom plate is provided with a plurality of first heat dissipation ribs which are protruded and circumferentially distributed around a rotating shaft, a first air channel is formed between two adjacent first heat dissipation ribs, a vent hole is formed in the middle of the baffle plate, a plurality of through holes are formed in the position, close to the sleeve part, of the bottom plate, each through hole is respectively positioned between two adjacent first heat dissipation ribs, the vent hole is communicated with the through hole through the first air channel, a shell is arranged on the sleeve part, a centrifugal fan blade is also arranged between the shell of the electric control part and the sleeve part and is positioned below the vent hole of the baffle plate, one end of the rotating shaft extends out of the bottom plate and is connected with the centrifugal fan blade, so that the heat in the motor part and the electric control part can be quickly brought out of the motor part and the electric control part, the cooling effect of the parts is good, the heat dissipation effect is improved, and the heat dissipation of the whole machine is faster.
Description
The technical field is as follows:
the utility model relates to an outer rotor motor.
Background art:
the existing external rotor motor system comprises a motor and a controller, the motor comprises a rotating shaft, a stator component, an external rotor and a sleeve seat, wherein the stator component comprises a stator core, an end part insulator and a coil winding, the sleeve seat comprises a bottom plate and a sleeve which protrudes upwards from the middle of the bottom plate, bearing chambers are arranged at two ends of the sleeve, bearings are arranged in the bearing chambers, the rotating shaft is positioned in the sleeve, two ends of the rotating shaft are respectively supported on the bearings, the external rotor comprises a casing sleeve and a plurality of permanent magnets arranged on the inner wall surface of the casing sleeve, one end of the rotating shaft extends out of the sleeve and is connected with the casing sleeve in an installing way, the stator component is arranged outside the sleeve in a nested way, the external rotor is sleeved outside the stator component, a flange extends out of an opening of the casing sleeve, a wind wheel is arranged at the bottom of the flange, the controller comprises a box body and a control element, the box body is arranged on the bottom plate, the wind wheel including the wind wheel outer lane that is located the bottom, wind wheel outer lane up circumference is provided with a plurality of fan blades, the inboard of wind wheel outer lane sets up the wind wheel inner circle, the diameter of wind wheel inner circle is less than the diameter of wind wheel outer lane, wind wheel outer lane inboard is connected with the wind wheel inner circle through a plurality of connecting points, the wind gap between wind wheel inner circle and the wind wheel outer lane forms into the wind gap, be equipped with a plurality of protruding radiating fin on the bottom plate of the position of wind wheel below, form the wind channel between two adjacent radiating fin, the wind wheel outer lane shelters from the top in wind channel, wind wheel outer lane and flange, a centrifugal fan is constituteed to a plurality of fan blades, it rotates to drive the wind wheel when the external rotor rotates, the air current radially gets into the wind channel, then flow into the clearance, under the effect of a plurality of fan blades, radially toward throwing away outward, the inside heat dissipation of motor has been solved to this structure, this external rotor motor system has following problem:
the controller heat dissipation scheme adopted by the outer rotor motor at the present stage adopts a natural heat dissipation mode, and although the rotor part is provided with the heat dissipation fan blade, the heat dissipation fan blade is arranged separately from the controller part, so that the heat dissipation of the outer rotor part cannot effectively dissipate heat for the controller part.
The utility model content is as follows:
the utility model aims to provide an outer rotor motor, which can solve the technical problem that heat dissipation of an outer rotor part cannot effectively dissipate heat of a controller part because a heat dissipation fan blade is arranged on the outer rotor motor and separated from the controller part in the prior art.
The purpose of the utility model is realized by the following technical scheme.
The utility model aims to provide an external rotor motor, which comprises a motor part and an electric control 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 protruding upwards from the middle of the bottom plate;
the electric control part comprises a shell, a lower cover and a control circuit board, wherein the lower cover is arranged at the bottom of the shell, an accommodating cavity is formed between the shell and the lower cover, the control circuit board is arranged in the accommodating cavity, and the shell comprises an upper end plate and a side wall plate with the edge of the upper end plate extending axially;
the method is characterized in that: the edge of the bottom plate axially extends out of the sleeve portion, an opening of the sleeve portion is covered by the baffle, the sleeve portion and the bottom plate enclose a heat dissipation rib cavity, a plurality of first heat dissipation ribs which are protruded and circumferentially distributed around the rotating shaft are arranged on the bottom plate, a first air channel is formed between every two adjacent first heat dissipation ribs, the first heat dissipation ribs are arranged in the heat dissipation rib cavity, a vent is formed in the middle of the baffle, a plurality of through holes are formed in the position, close to the sleeve portion, of the bottom plate, each through hole is located between every two adjacent first heat dissipation ribs, the vent is communicated with the through holes through the first air channels, the shell is installed on the sleeve portion, centrifugal fan blades are further arranged between the shell of the electric control portion and the sleeve portion, the centrifugal fan blades are located below the vent of the baffle, and one end of the rotating shaft extends out of the bottom plate and is connected with the centrifugal fan blades.
The top surface of the upper end plate is provided with a plurality of second heat dissipation ribs in a protruding mode, a second air channel is formed between every two adjacent second heat dissipation ribs, the inner end of each second heat dissipation rib is enclosed to form an accommodating cavity, the centrifugal fan blade is located in the accommodating cavity, and the second air channel is communicated with the first air channel through the ventilation opening.
The side wall plate is provided with a plurality of third heat dissipation ribs in a protruding mode, the third heat dissipation ribs correspond to the second heat dissipation ribs, and the third heat dissipation ribs and the second heat dissipation ribs are distributed in a radiating mode around the accommodating cavity.
The periphery of the electric control part is sleeved with an air guide cover, and the air guide cover surrounds the periphery of the shell of the electric control part.
The wind scooper is an annular plate.
The periphery of the electric control part is sleeved with an air guide cover, the electric control part is integrally surrounded by the air guide cover, and an air guide hole is formed in the bottom of the air guide cover and communicated with the ventilation opening.
The wind scooper comprises an end plate and an annular side plate protruding upwards from the edge of the end plate, the wind guide hole is formed in the middle of the end plate, and the electric control part is surrounded by the end plate and the annular side plate.
The telescopic opening part of casing be equipped with the ring flange, install waterproof baffle bottom the ring flange, waterproof baffle includes the fixed plate and follows first retaining ring of fixed plate downward convex and second retaining ring, form first recess between first retaining ring and the second retaining ring, the bottom plate is upwards protruding to have interior retaining ring and outer retaining ring, interior retaining ring is located between sleeve and the through-hole with outer retaining ring, form the aqua storage tank between interior retaining ring and the outer retaining ring, the first recess the inside is embedded into at the top of interior retaining ring, the aqua storage tank the inside is inserted to the second retaining ring, make and form a labyrinth waterproof construction between waterproof baffle and the bottom plate.
The top surface of the top plate is provided with a plurality of heat dissipation fan blades circumferentially distributed around the rotating shaft.
And a plurality of fourth heat dissipation ribs are arranged on the outer surface of the lower cover.
Compared with the prior art, the utility model has the following effects:
1) an outer rotor motor comprises a motor part and an electric control part, wherein a sleeve part axially extends out of the edge of a bottom plate, an opening of the sleeve part is covered by a baffle, the sleeve part and the bottom plate enclose a heat dissipation rib cavity, a plurality of first heat dissipation ribs which are protruded and distributed circumferentially around a rotating shaft are arranged on the bottom plate, a first air channel is formed between every two adjacent first heat dissipation ribs, the first heat dissipation ribs are arranged in the heat dissipation rib cavity, a ventilation opening is formed in the middle of the baffle, a plurality of through holes are formed in the bottom plate close to the sleeve part, each through hole is respectively positioned between every two adjacent first heat dissipation ribs, the ventilation opening is communicated with the through holes through the first air channels, a shell is arranged on the sleeve part, a centrifugal fan blade is further arranged between the shell of the electric control part and the sleeve part, the centrifugal fan blade is positioned below the ventilation opening of the baffle, one end of the rotating shaft extends out of the bottom plate and is connected with the centrifugal fan blade, this structure rotates through driving centrifugal fan blade, and cold wind enters into first wind channel from the through-hole and flows through to the vent, flows between motor part and the electrical control part from the vent again, throws away the hot-blast outside between motor part and the electrical control part through centrifugal fan blade, can take out motor part and electrical control part inside heat outside with motor part and electrical control part fast, makes the part cooling effectual, improves the radiating effect, makes the complete machine heat dissipation faster.
2) Other advantages of the present invention are described in detail in the examples section.
Description of the drawings:
FIG. 1 is a perspective view of a first embodiment of the present invention;
FIG. 2 is a front view of a first embodiment of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a partial enlarged view of B in FIG. 3;
FIG. 5 is an enlarged view of a portion C of FIG. 3;
fig. 6 is an exploded view of a motor part and an electric control part according to a first embodiment of the present invention;
FIG. 7 is another exploded perspective view of the motor portion and the electronic control portion according to one embodiment of the present invention;
fig. 8 is a partial exploded view of a motor part structure according to an embodiment of the present invention;
fig. 9 is an exploded view of a motor according to an embodiment of the present invention;
FIG. 10 is a perspective view of a sleeve mount provided in accordance with an embodiment of the present invention;
FIG. 11 is another perspective view of a sleeve mount provided in accordance with an embodiment of the present invention;
FIG. 12 is a perspective view of a second embodiment of the present invention;
FIG. 13 is a front view provided by the second embodiment of the present invention;
FIG. 14 is a cross-sectional view D-D of FIG. 13;
fig. 15 is a partial enlarged view of E in fig. 14;
fig. 16 is an exploded view of a motor part and an electric control part provided in the second embodiment of the present invention;
fig. 17 is another exploded perspective view of the motor part and the electric control part according to the second embodiment of the present invention.
The specific implementation mode is as follows:
the present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1 to 11, 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, 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, and the permanent magnets 34 are arranged on the inner wall surface of the casing sleeve 31;
the electric control part 20 comprises a shell 201, a lower cover 202 and a control circuit board 203, wherein the lower cover 202 is installed at the bottom of the shell 201, an accommodating cavity 204 is formed between the shell 201 and the lower cover 202, the control circuit board 203 is installed in the accommodating cavity 204, and the shell 201 comprises an upper end plate 2012 and a side wall plate 2013 with the edge of the upper end plate 2012 extending axially;
the method is characterized in that: the edge of the bottom plate 41 extends axially to form a sleeve portion 410, an opening of the sleeve portion 410 is covered by a baffle 6, the sleeve portion 410 and the bottom plate 41 enclose a heat dissipation rib cavity 4101, the bottom plate 41 is provided with a plurality of first heat dissipation ribs 411 which are protruded and circumferentially distributed around the rotating shaft 1, a first air duct 412 is formed between two adjacent first heat dissipation ribs 411, the first heat dissipation ribs 411 are arranged in the heat dissipation rib cavity 4101, a vent 61 is arranged in the middle of the baffle 6, a plurality of through holes 413 are arranged at the position of the bottom plate 41 close to the sleeve portion 410, each through hole 413 is respectively positioned between two adjacent first heat dissipation ribs 411, the vent 61 is communicated with the through hole 413 through the first air duct 412, the shell 201 is arranged on the sleeve portion 410, a centrifugal fan blade 5 is further arranged between the shell 201 of the electric control portion 20 and the sleeve portion 410, the centrifugal fan blade 5 is positioned below the vent 61 of the baffle 6, one end of the rotating shaft 1 extends out of the bottom plate 41 and is connected with the centrifugal fan blade 5, this structure rotates through driving centrifugal fan blade 5, cold wind enters into first wind channel 412 from through-hole 413 and flows through to vent 61, flow between motor part 10 and electrical control part 20 from vent 61 again, through centrifugal fan blade 5 with the hot-blast throw-out outside between motor part 10 and the electrical control part 20, can take out motor part 10 and the inside heat of electrical control part 20 outside motor part 10 and electrical control part 20 fast, it is effectual to make the part cool down, the heat dissipation effect is improved, make the complete machine heat dissipation faster.
A plurality of second heat dissipation ribs 2011 protrude from the top surface of the upper end plate 2012, a second air duct 2022 is formed between two adjacent second heat dissipation ribs 2011, the inner end of each second heat dissipation rib 2011 encloses a containing cavity 2010, the centrifugal fan blade 5 is located in the containing cavity 2010, the second air duct 2022 is communicated with the first air duct 412 through the vent 61, cold air enters the first air duct 412 from the through hole 413 and flows to the vent 61, and then flows between the motor part 10 and the electric control part 20 from the vent 61, the cold air flows through the second air duct 2022 by the centrifugal force of the centrifugal fan blade 5, heat attached to the second heat dissipation ribs 2011 is taken away, so that the cooling effect of parts is good, the heat dissipation effect is improved, and the heat dissipation of the whole machine is faster.
The convex has a plurality of third heat dissipation muscle 2014 on foretell side bounding wall 2013, corresponds between third heat dissipation muscle 2014 and the second heat dissipation muscle 2011, and a plurality of third heat dissipation muscle 2014 and a plurality of second heat dissipation muscle 2011 are around holding chamber 2010 and disperse the form and distribute, and structural arrangement is reasonable, can improve the radiating effect of automatically controlled part.
The air guide cover 8 is sleeved on the periphery of the electric control part 20, the air guide cover 8 surrounds the periphery of the shell 201 of the electric control part 20, and the cold air flowing through the second air duct 2022 is guided to the side wall plate 2013 and the lower cover 202 of the electric control part 20 through the air guide cover 8, so that the cooling effect of the electric control part 20 is better, and the heat dissipation effect is improved.
The wind scooper 8 is an annular plate and is reasonable in structural arrangement.
The flange 33 is disposed at the opening of the casing sleeve 31, the waterproof baffle 7 is mounted at the bottom of the flange 33, the waterproof baffle 7 includes a fixing plate 71 and a first retaining ring 72 and a second retaining ring 73 protruding downward from the fixing plate 71, a first groove 74 is formed between the first retaining ring 72 and the second retaining ring 73, an inner water-retaining ring 414 and an outer water-retaining ring 415 are protruded upward from the bottom plate 41, the inner water-retaining ring 414 and the outer water-retaining ring 415 are located between the sleeve 42 and the through hole 413, a water storage tank 416 is formed between the inner water-retaining ring 414 and the outer water-retaining ring 415, the top of the inner water-retaining ring 414 is embedded into the first groove 74, and the second retaining ring 73 is inserted into the water storage tank 416, so that a labyrinth waterproof structure is formed between the waterproof baffle 7 and the bottom plate 41, the waterproof effect is good, and the structural arrangement is reasonable.
The top surface of the top plate 32 is provided with a plurality of heat dissipation fan blades 321 circumferentially distributed around the rotating shaft 1, so that the heat dissipation effect of the motor part 10 is improved.
The outer surface of the lower cover 202 is provided with a plurality of fourth heat dissipating ribs 2021, which improve the heat dissipating effect of the electric control portion.
The working principle is as follows: when the outer rotor 3 rotates, the centrifugal fan blade 5 is driven to rotate, cold air enters the first air channel 412 from the through hole 413 and flows to the vent 61, then flows between the motor part 10 and the electric control part 20 from the vent 61, the cold air flows through the second air channel 2022 through the centrifugal force of the centrifugal fan blade 5, heat attached to the second heat dissipation ribs 2011 is taken away, and the cold air flowing through the second air channel 2022 is guided to the side wall plate 2013 and the lower cover 202 of the electric control part 20 through the air guide cover 8, so that a heat dissipation air channel is formed between the electric control part 20 and the motor part 10, and the heat dissipation effect is good.
Example two:
as shown in fig. 12 to 17, in the present embodiment, a wind scooper 8 is further provided around the electric control portion 20, the wind scooper 8 entirely surrounds the electric control portion 20, a wind guiding hole 80 is provided at the bottom of the wind scooper, the wind guiding hole 80 is communicated with the ventilation opening 61, and the cold wind flowing through the second wind channel 2022 is guided to the bottom of the side wall plate 2013 and the lower cover 202 of the electric control portion 20 by the wind scooper 8, so that the temperature reduction effect of the electric control portion 20 is better, the heat dissipation effect is improved, and the heat dissipation of the whole machine is faster.
The working principle is as follows: when the outer rotor 3 rotates, the centrifugal fan blade 5 is driven to rotate, cold air enters the first air channel 412 from the through hole 413 and flows to the air vent 61, then flows to a position between the motor part 10 and the electric control part 20 from the air vent 61, the cold air flows through the second air channel 2022 through the centrifugal force of the centrifugal fan blade 5, heat attached to the second heat dissipation rib 2011 is taken away, the cold air flowing through the second air channel 2022 is guided to the bottom of the side wall plate 2013 and the lower cover 202 of the electric control part 20 through the air guide cover 8 and is discharged from the air guide hole 80, and a heat dissipation air channel is formed between the electric control part 20 and the motor part 10, so that the heat dissipation effect is good.
The wind scooper 8 comprises an end plate 81 and an annular side plate 82 protruding upwards from the edge of the end plate 81, the wind guide hole 80 is arranged in the middle of the end plate 81, and the end plate 81 and the annular side plate 82 surround the electric control part 20, so that the structure is simple.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited thereto, and other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention are all equivalent substitutions and are intended to be included within the scope of the present invention.
Claims (10)
1. An external rotor electric machine comprising an electric machine part (10) and an electric control part (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), 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), and the plurality of permanent magnets (34) are arranged on the inner wall surface of the casing sleeve (31);
the electric control part (20) comprises a shell (201), a lower cover (202) and a control circuit board (203), wherein the lower cover (202) is installed at the bottom of the shell (201), an accommodating cavity (204) is formed between the shell (201) and the lower cover (202), the control circuit board (203) is installed in the accommodating cavity (204), and the shell (201) comprises an upper end plate (2012) and a side wall plate (2013) with the edge of the upper end plate (2012) extending axially;
the method is characterized in that: the edge of the bottom plate (41) axially extends out of the sleeve portion (410), the opening of the sleeve portion (410) is covered by the baffle (6), the sleeve portion (410) and the bottom plate (41) enclose a heat dissipation rib cavity (4101), a plurality of first heat dissipation ribs (411) which are protruded and circumferentially distributed around the rotating shaft (1) are arranged on the bottom plate (41), a first air duct (412) is formed between every two adjacent first heat dissipation ribs (411), the first heat dissipation ribs (411) are arranged in the heat dissipation rib cavity (4101), a vent hole (61) is formed in the middle of the baffle (6), a plurality of through holes (413) are formed in the position, close to the sleeve portion (410), of the bottom plate (41), each through hole (413) is respectively located between every two adjacent first heat dissipation ribs (411), the air duct (61) is communicated with the through holes (413) through the first vent holes (412), the shell (201) is installed on the sleeve portion (410), a centrifugal fan blade (5) is further arranged between the shell (201) and the sleeve portion (410) of the electric control portion (20), the centrifugal fan blade (5) is located below the ventilation opening (61) of the baffle (6), and one end of the rotating shaft (1) extends out of the bottom plate (41) and is connected with the centrifugal fan blade (5).
2. An external rotor electric machine as claimed in claim 1, wherein: a plurality of second heat dissipation ribs (2011) protrude from the top surface of the upper end plate (2012), a second air duct (2022) is formed between every two adjacent second heat dissipation ribs (2011), the inner end of each second heat dissipation rib (2011) is enclosed into an accommodating cavity (2010), the centrifugal fan blade (5) is located in the accommodating cavity (2010), and the second air duct (2022) is communicated with the first air duct (412) through a ventilation opening (61).
3. An external rotor electric machine as claimed in claim 2, wherein: a plurality of third heat dissipation ribs (2014) are protruded on the side enclosing plate (2013), the third heat dissipation ribs (2014) correspond to the second heat dissipation ribs (2011), and the third heat dissipation ribs (2014) and the second heat dissipation ribs (2011) are distributed in a divergent mode around the accommodating cavity (2010).
4. An external rotor electric machine according to claim 1, 2 or 3, wherein: the periphery of the electric control part (20) is sleeved with an air guide cover (8), and the air guide cover (8) surrounds the periphery of a shell (201) of the electric control part (20).
5. The external rotor electric machine according to claim 4, wherein: the wind scooper (8) is an annular plate.
6. An external rotor electric machine according to claim 1, 2 or 3, wherein: the periphery of the electric control part (20) is sleeved with an air guide cover (8), the electric control part (20) is integrally surrounded by the air guide cover (8), an air guide hole (80) is formed in the bottom of the air guide cover, and the air guide hole (80) is communicated with the ventilation opening (61).
7. The external rotor electric machine according to claim 6, wherein: the air guide cover (8) comprises an end plate (81) and an annular side plate (82) protruding upwards from the edge of the end plate (81), the air guide hole (80) is formed in the middle of the end plate (81), and the end plate (81) and the annular side plate (82) surround the electric control part (20).
8. The external rotor electric machine according to claim 7, wherein: the opening part of casing sleeve (31) is equipped with ring flange (33), install waterproof baffle (7) in ring flange (33) bottom, waterproof baffle (7) are including fixed plate (71) and from fixed plate (71) convex first retaining ring (72) and second retaining ring (73) down, form first recess (74) between first retaining ring (72) and second retaining ring (73), bottom plate (41) up the arch have interior water blocking circle (414) and outer water blocking circle (415), interior water blocking circle (414) and outer water blocking circle (415) are located between sleeve (42) and through-hole (413), form aqua storage tank (416) between interior water blocking circle (414) and outer water blocking circle (415), the top of interior water blocking circle (414) is embedded into first recess (74) the inside, second retaining ring (73) are inserted into aqua storage tank (416) the inside, make and form a labyrinth waterproof construction between waterproof baffle (7) and bottom plate (41).
9. The external rotor electric machine according to claim 8, wherein: the top surface of the top plate (32) is provided with a plurality of heat dissipation fan blades (321) which are distributed circumferentially around the rotating shaft (1).
10. The external rotor electric machine according to claim 9, wherein: the outer surface of the lower cover (202) is provided with a plurality of fourth heat dissipation ribs (2021).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122640323.5U CN216530859U (en) | 2021-10-29 | 2021-10-29 | External rotor motor |
| PCT/CN2022/079849 WO2023071015A1 (en) | 2021-10-29 | 2022-03-09 | External rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122640323.5U CN216530859U (en) | 2021-10-29 | 2021-10-29 | External rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216530859U true CN216530859U (en) | 2022-05-13 |
Family
ID=81526860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122640323.5U Active CN216530859U (en) | 2021-10-29 | 2021-10-29 | External rotor motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN216530859U (en) |
| WO (1) | WO2023071015A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201341051Y (en) * | 2009-01-21 | 2009-11-04 | 襄樊航力机电技术发展有限公司 | Radiator for air-cooled generator |
| CN103904813B (en) * | 2012-12-25 | 2016-05-04 | 中山大洋电机股份有限公司 | A kind of heavy-duty motor radiator structure |
| CN205901554U (en) * | 2016-07-26 | 2017-01-18 | 中山大洋电机股份有限公司 | External rotor motor |
| WO2021146130A1 (en) * | 2020-01-15 | 2021-07-22 | East West Manufacturing, Llc | Electronically commutated dc motor |
| CN213402646U (en) * | 2020-10-27 | 2021-06-08 | 湖北惠洋电器制造有限公司 | External rotor motor system |
-
2021
- 2021-10-29 CN CN202122640323.5U patent/CN216530859U/en active Active
-
2022
- 2022-03-09 WO PCT/CN2022/079849 patent/WO2023071015A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023071015A1 (en) | 2023-05-04 |
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