CN210577988U - External rotor motor - Google Patents
External rotor motor Download PDFInfo
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- CN210577988U CN210577988U CN201921393568.9U CN201921393568U CN210577988U CN 210577988 U CN210577988 U CN 210577988U CN 201921393568 U CN201921393568 U CN 201921393568U CN 210577988 U CN210577988 U CN 210577988U
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- bottom plate
- external rotor
- electric machine
- rotor
- machine according
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- 238000009413 insulation Methods 0.000 claims abstract description 11
- 238000004804 winding Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 51
- 238000007789 sealing Methods 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an external rotor electric machine, the on-line screen storage device comprises a base, the external rotor subassembly, pivot and stator module, the external rotor subassembly is connected with the pivot erection, the external rotor subassembly includes rotor housing and installs a plurality of magnetic shoes at the rotor housing inner wall, the stator module suit is in rotor housing's inner chamber, the base includes bottom plate and from the middle convex sleeve up of the top surface of bottom plate, stator module includes stator core, install the tip insulation on stator core, and around establishing the coil winding on the tip insulation, be equipped with annular flange on the bottom plate, be equipped with out the basin on the bottom plate, annular flange is located the inboard in play basin, it is equipped with the installation breakwater ring on the play basin, form the gap between breakwater ring and the annular flange, when the external rotor subassembly suit is on stator module, the bottom of rotor housing stretches into to form labyrinth seal structure in the gap, through going out basin and, Drainage, simple structure, simple to operate, water-proof effects is good.
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 controller, wherein the motor comprises a stator component, an external rotor component, a rotating shaft and a base, the controller comprises a control box and a control circuit board integrated with an electronic device, a sleeve seat downwards extends in the middle of the base, the rotating shaft is positioned in the sleeve seat and supported on bearings at two ends of the sleeve seat, the stator component is sleeved outside the sleeve seat, the rotating shaft is connected with the external rotor component, the external rotor component is nested outside the stator component, the control box is installed on the bottom surface of the base, the control circuit board is positioned in a cavity of the control box and is installed on the bottom surface of the base, but the external rotor motor with the structure has the following problems: 1) the drainage performance of the base is poor, accumulated water is easily formed on the top surface of the base, and the accumulated water even flows into the stator assembly or the outer rotor assembly below the base, so that the motor cannot normally run, and a large potential safety hazard exists; 2) The lead wire that draws from the control box top leads to into water easily, and water directly flows to the control scheme board from the control box top, finally leads to the control scheme board to damage, influences the normal operating of motor.
The utility model has the following contents:
the utility model aims at providing an external rotor electric machine, it is waterproof, the drainage problem of external rotor electric machine solved, simple structure, convenient assembling, and water-proof effects is good.
The purpose of the utility model is realized by the following technical scheme.
The utility model aims at providing an external rotor electric machine, including base, external rotor assembly, pivot and stator module, external rotor assembly couples together with the pivot installation, external rotor assembly includes rotor housing and installs a plurality of magnetic shoes at the rotor housing inner wall, and the stator module suit is in rotor housing's inner chamber, and the base includes the bottom plate and goes up convex sleeve in the middle of the top surface of bottom plate, is equipped with the bearing room at telescopic both ends, installs the bearing inside the bearing room, and the pivot is supported and is installed on two bearings, and stator module includes stator core, installs the tip on stator core insulating and around establishing the coil winding on the tip is insulating, its characterized in that: the improved labyrinth sealing structure is characterized in that an annular convex plate is arranged on the bottom plate, a water outlet groove is formed in the bottom plate, the annular convex plate is located on the inner side of the water outlet groove, a water retaining ring is arranged on the water outlet groove, a gap is formed between the water retaining ring and the annular convex plate, and when the outer rotor assembly is sleeved on the stator assembly, the bottom of the rotor shell extends into the gap to form a labyrinth sealing structure.
The water outlet groove is provided with a plurality of mounting bosses, the mounting bosses are provided with first mounting holes, the water retaining ring is provided with second mounting holes, and the water retaining ring is fixed on the bottom plate by a first screw penetrating through the second mounting holes and the first mounting holes.
The water retaining ring comprises an annular bottom plate and an annular baffle, the annular baffle is located on one side of the annular bottom plate, a second mounting hole is formed in the annular baffle, and a gap is formed between the annular baffle and the annular convex plate.
A plurality of water outlets are arranged on the outer side edge of the water outlet groove.
The bottom of the rotor shell is provided with a step.
And the outer edge of the annular convex plate is provided with a diversion trench.
Install the back lid on the bottom surface of bottom plate, form the holding chamber between bottom plate and the back lid, insulating seat is installed to the holding intracavity, installs the control scheme board on the insulating seat, is equipped with a plurality of through-holes on the bottom plate, and insulating seat passes the through-hole toward a plurality of cylinders of bottom plate direction protrusion, the cartridge has a plurality of terminal clamping pieces on the end insulation, and the terminal clamping piece is connected with the coil winding electricity, and the bottom of terminal clamping piece is passed the cylinder and is connected with the control scheme board electricity.
The bottom plate is provided with a third mounting hole, the rear cover is provided with a fourth mounting hole, and the rear cover is fixed on the bottom plate by a second screw penetrating through the fourth mounting hole and the third mounting hole.
The sealing device is characterized in that a sealing ring is arranged at the joint between the bottom plate and the rear cover, a sealing groove is formed in the bottom plate, and the sealing ring is installed in the sealing groove.
Compared with the prior art, the utility model, following effect has:
1) the utility model discloses a base, external rotor assembly, pivot and stator module, external rotor assembly and pivot erection joint, external rotor assembly includes rotor housing and installs a plurality of magnetic shoes at the rotor housing inner wall, and the stator module suit is in rotor housing's inner chamber, and the base includes the bottom plate and goes up convex sleeve from the middle of the top surface of bottom plate, is equipped with the bearing room at telescopic both ends, installs the bearing inside the bearing room, and the pivot is supported and is installed on two bearings, and stator module includes stator core, installs the tip insulation on stator core and around establishing the coil winding on the tip insulation, its characterized in that: the outer rotor motor is characterized in that the bottom plate is provided with an annular convex plate, the bottom plate is provided with a water outlet groove, the annular convex plate is located on the inner side of the water outlet groove, the water outlet groove is provided with an installation water retaining ring, a gap is formed between the water retaining ring and the annular convex plate, when the outer rotor assembly is sleeved on the stator assembly, the bottom of the rotor shell extends into the gap to form a labyrinth seal structure, and the outer rotor motor effectively realizes water prevention and drainage through the water outlet groove and the water retaining ring structure.
2) Other advantages are detailed in the detailed description of the embodiments.
Description of the drawings:
fig. 1 is a perspective view of the present invention;
fig. 2 is a partially exploded view of the present invention;
3 FIG. 3 3 3 is 3 an 3 enlarged 3 view 3 of 3 A 3- 3 A 3 of 3 FIG. 3 2 3; 3
Fig. 4 is another angle partially exploded view of the present invention;
fig. 5 is an exploded view of the present invention;
fig. 6 is another exploded perspective view of the present invention;
fig. 7 is a top view of the present invention;
FIG. 8 is a cross-sectional view B-B of FIG. 7;
fig. 9 is a partial enlarged view of C in fig. 8;
fig. 10 is a partial enlarged view of D in fig. 8.
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 10, the embodiment provides an external rotor motor, which includes a base 1, an external rotor assembly 2, a rotating shaft 3, and a stator assembly 4, where the external rotor assembly 2 is installed and connected with the rotating shaft 3, the external rotor assembly 2 includes a rotor housing 21 and a plurality of magnetic shoes 22 installed on an inner wall of the rotor housing 21, the stator assembly 4 is sleeved in an inner cavity 23 of the rotor housing 21, the base 1 includes a bottom plate 11 and a sleeve 12 protruding upward from a middle of a top surface of the bottom plate 11, bearing chambers 121 are provided at two ends of the sleeve 12, bearings 120 are installed in the bearing chambers 121, the rotating shaft 3 is supported and installed on the two bearings 120, the stator assembly 4 includes a stator core 41, an end insulation 42 installed on the stator core 41, and a coil winding wound on the end insulation 42, and is characterized: the outer rotor motor is characterized in that an annular convex plate 111 is arranged on the bottom plate 11, a water outlet groove 112 is formed in the bottom plate 11, the annular convex plate 111 is located on the inner side of the water outlet groove 112, an installation water retaining ring 5 is arranged on the water outlet groove 112, a gap 110 is formed between the water retaining ring 5 and the annular convex plate 111, when the outer rotor assembly 2 is sleeved on the stator assembly 4, the bottom of the rotor shell 21 extends into the gap 110 to form a labyrinth seal structure, and the outer rotor motor is structurally and effectively prevented from water and drained through the water outlet groove 112 and the water retaining ring 5, so that the outer rotor motor is simple in structure, convenient.
The water outlet groove 112 is provided with a plurality of mounting bosses 113, the mounting bosses 113 are provided with first mounting holes 114, the water retaining ring 5 is provided with second mounting holes 50, the first screws 6 penetrate through the second mounting holes 50 and the first mounting holes 114, and the water retaining ring 5 is fixed on the bottom plate 11, so that the mounting structure is simple.
The water retaining ring 5 comprises an annular bottom plate 51 and an annular baffle plate 52, the annular baffle plate 52 is located on one side of the annular bottom plate 51, a second mounting hole 50 is formed in the annular baffle plate 52, a gap 110 is formed between the annular baffle plate 52 and an annular convex plate 111, and the water retaining ring is simple in structure.
The outer edge of the water outlet groove 112 is provided with a plurality of water outlets 1120, so that the water drainage effect of the outer rotor motor is improved more effectively, and the structure is simple.
The bottom of the rotor housing 21 is provided with a step 211 to further improve the sealing property.
The outer edge of the annular convex plate 111 is provided with a diversion trench 1110, so that accumulated water diversion is facilitated, and the drainage effect is improved.
Install back lid 7 on the bottom surface of bottom plate 11, form holding chamber 70 between bottom plate 11 and the back lid 7, install insulating seat 71 in the holding chamber 70, install control scheme board 72 on the insulating seat 71, be equipped with a plurality of through-holes 115 on the bottom plate 11, insulating seat 71 passes through-hole 115 toward a plurality of cylinders 711 of bottom plate 11 direction protrusion, the cartridge has a plurality of terminal clamping pieces 421 on the end insulation 42, and terminal clamping piece 421 is connected with the coil winding electricity, and cylinder 711 is passed to the bottom of terminal clamping piece 421 and is connected with control scheme board 72 electricity.
The bottom plate 11 is provided with a third mounting hole 116, the rear cover 7 is provided with a fourth mounting hole 73, the second screw 60 penetrates through the fourth mounting hole 73 and the third mounting hole 116, the rear cover 7 is fixed on the bottom plate 11, the locking effect is good, and the installation result is simple.
The joint between bottom plate 11 and back lid 7 is equipped with sealing washer 8, be equipped with seal groove 117 on the bottom plate 11, sealing washer 8 is installed in seal groove 117, improves waterproof performance.
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 base (1), an outer rotor assembly (2), a rotating shaft (3) and a stator assembly (4), wherein the outer rotor assembly (2) is connected with the rotating shaft (3) in an installing mode, the outer rotor assembly (2) comprises a rotor shell (21) and a plurality of magnetic shoes (22) installed on the inner wall of the rotor shell (21), the stator assembly (4) is sleeved in an inner cavity (23) of the rotor shell (21), the base (1) comprises a bottom plate (11) and a sleeve (12) protruding upwards from the middle of the top surface of the bottom plate (11), bearing chambers (121) are arranged at two ends of the sleeve (12), bearings (120) are installed in the bearing chambers (121), the rotating shaft (3) is installed on the two bearings (120) in a supporting mode, the stator assembly (4) comprises a stator core (41), an end insulation (42) installed on the stator core (41), and a coil winding arranged on the end insulation (42), the method is characterized in that: the improved rotor structure is characterized in that an annular convex plate (111) is arranged on the bottom plate (11), a water outlet groove (112) is formed in the bottom plate (11), the annular convex plate (111) is located on the inner side of the water outlet groove (112), an installation water retaining ring (5) is arranged on the water outlet groove (112), a gap (110) is formed between the water retaining ring (5) and the annular convex plate (111), and when the outer rotor assembly (2) is sleeved on the stator assembly (4), the bottom of the rotor shell (21) extends into the gap (110) to form a labyrinth seal structure.
2. The external rotor electric machine according to claim 1, wherein: the water outlet groove (112) is provided with a plurality of mounting bosses (113), the mounting bosses (113) are provided with first mounting holes (114), the water retaining ring (5) is provided with second mounting holes (50), and the first screws (6) penetrate through the second mounting holes (50) and the first mounting holes (114) to fix the water retaining ring (5) on the bottom plate (11).
3. The external rotor electric machine according to claim 2, wherein: the water retaining ring (5) comprises an annular bottom plate (51) and an annular baffle (52), the annular baffle (52) is located on one side of the annular bottom plate (51), a second mounting hole (50) is formed in the annular baffle (52), and a gap (110) is formed between the annular baffle (52) and the annular convex plate (111).
4. An external rotor electric machine according to claim 1, 2 or 3, wherein: a plurality of water outlets (1120) are arranged on the outer side edge of the water outlet groove (112).
5. The external rotor electric machine according to claim 4, wherein: the bottom of the rotor shell (21) is provided with a step (211).
6. The external rotor electric machine according to claim 5, wherein: the outer edge of the annular convex plate (111) is provided with a diversion trench (1110).
7. The external rotor electric machine according to claim 5, wherein: install back lid (7) on the bottom surface of bottom plate (11), form holding chamber (70) between bottom plate (11) and back lid (7), install insulating seat (71) in holding chamber (70), install control scheme board (72) on insulating seat (71), be equipped with a plurality of through-holes (115) on bottom plate (11), through-hole (115) are passed toward a plurality of cylinders (711) of bottom plate (11) direction protrusion in insulating seat (71), the cartridge has a plurality of terminal clamping pieces (421) on end insulation (42), and terminal clamping piece (421) are connected with the coil winding electricity, and cylinder (711) are passed to the bottom of terminal clamping piece (421) and are connected with control scheme board (72) electricity.
8. The external rotor electric machine according to claim 7, wherein: the novel rear cover is characterized in that a third mounting hole (116) is formed in the bottom plate (11), a fourth mounting hole (73) is formed in the rear cover (7), and the rear cover (7) is fixed to the bottom plate (11) through a second screw (60) penetrating through the fourth mounting hole (73) and the third mounting hole (116).
9. The external rotor electric machine according to claim 8, wherein: the sealing structure is characterized in that a sealing ring (8) is arranged at the joint between the bottom plate (11) and the rear cover (7), a sealing groove (117) is formed in the bottom plate (11), and the sealing ring (8) is installed in the sealing groove (117).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921393568.9U CN210577988U (en) | 2019-08-26 | 2019-08-26 | External rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921393568.9U CN210577988U (en) | 2019-08-26 | 2019-08-26 | External rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210577988U true CN210577988U (en) | 2020-05-19 |
Family
ID=70641955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921393568.9U Active CN210577988U (en) | 2019-08-26 | 2019-08-26 | External rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210577988U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112366841A (en) * | 2020-10-22 | 2021-02-12 | 卧龙电气驱动集团股份有限公司 | Fan and outer rotor motor thereof |
| CN113489216A (en) * | 2021-07-05 | 2021-10-08 | 深圳市金源机电科技有限公司 | Low-vibration low-noise direct-current outer rotor brushless motor for laser radar |
-
2019
- 2019-08-26 CN CN201921393568.9U patent/CN210577988U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112366841A (en) * | 2020-10-22 | 2021-02-12 | 卧龙电气驱动集团股份有限公司 | Fan and outer rotor motor thereof |
| CN113489216A (en) * | 2021-07-05 | 2021-10-08 | 深圳市金源机电科技有限公司 | Low-vibration low-noise direct-current outer rotor brushless motor for laser radar |
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