CN203707914U - External rotor motor - Google Patents
External rotor motor Download PDFInfo
- Publication number
- CN203707914U CN203707914U CN201420044947.8U CN201420044947U CN203707914U CN 203707914 U CN203707914 U CN 203707914U CN 201420044947 U CN201420044947 U CN 201420044947U CN 203707914 U CN203707914 U CN 203707914U
- Authority
- CN
- China
- Prior art keywords
- plastic packaging
- packaging shell
- rotating shaft
- cavity
- receiver
- 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.)
- Expired - Lifetime
Links
- 238000004806 packaging method and process Methods 0.000 claims abstract description 38
- 238000004804 winding Methods 0.000 claims abstract description 24
- 238000009413 insulation Methods 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/086—Structural association with bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
-
- 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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1737—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
-
- 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
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The utility model discloses an external rotor motor. The motor comprises a stator assembly, a rotor assembly and a rotating shaft. The rotor assembly comprises a casing sleeve with a cavity and several permanent magnets installed on an inner wall of the cavity of the casing sleeve. The casing sleeve sleeves the stator assembly. Sleeve seats are arranged in the cavity and on an intermediate portion of a bottom wall of the cavity. The rotating shaft is located in the sleeve seats and two ends are supported on a bearing. A plastic packaging shell is arranged outside the stator assembly. The plastic packaging shell wraps a stator core, end portion insulation and a coil winding. A hollow cavity is formed on an intermediate portion of a bottom surface of the plastic packaging shell. The sleeve seats are stretched into the hollow cavity. A stanchion is stretched out of an intermediate portion of a top surface of the plastic packaging shell. A through hole is arranged in the middle of the stanchion along an axial direction. The through hole is connected with the hollow cavity. The rotating shaft is nested into the through hole. The structure is simple and installation is convenient. An outgoing line of the coil winding does not need to be stretched out from the intermediate portion of the rotating shaft. A production technology is simple, cost is low and motor operation efficiency is high. Heat-dissipation and waterproof effects are ideal.
Description
Technical field:
The utility model relates to a kind of external rotor electric machine.
Background technology:
Existing external rotor electric machine comprises rotating shaft, external rotor, stator module and end cap, rotating shaft and stator module are installed together, external rotor is nested in stator module outside, end cap is arranged on external rotor two ends, shaft support is on the bearing of two end cap, stretch out outward from two end cap respectively at rotating shaft two ends, and on stator module, the lead-out wire of coil windings is drawn from the middle through hole of offering of rotating shaft.But there is following several problem in the external rotor electric machine of this structure: 1) complex structure, and the installation difficulty of Hall part, the lead-out wire of Hall part and the lead-out wire of coil windings are difficult to stretch out from the through hole of rotating shaft simultaneously, and cost is higher; 2) reliability of motor is poor, and efficiency is low, and heat radiation, waterproof effect is undesirable.
Summary of the invention:
The purpose of this utility model is to provide a kind of external rotor electric machine, and this is simple in structure, easy for installation, and the lead-out wire of coil windings needn't stretch out in the middle of rotating shaft, and production technology is simple, and cost is low, and motor operational efficiency is high, heat radiation, waterproof effect ideal.
The purpose of this utility model is achieved by following technical proposals.
A kind of external rotor electric machine, comprise stator module, rotor assembly and rotating shaft, described stator module comprises stator core, overhang insulation and coil windings, overhang insulation is arranged on the end face of stator core, coil windings is reeled and is arranged on overhang insulation, described rotor assembly comprises with the casing sleeve of cavity volume and is arranged on some permanent magnets of the cavity volume inwall of casing sleeve, casing jacket casing is in stator module outside, in cavity volume the inside, in the middle of the diapire of cavity volume, be provided with receiver, receiver two ends are provided with bearing chamber, bearing is installed in bearing chamber the inside, rotating shaft is positioned at receiver the inside and two supports on bearing, be provided with plastic packaging shell in stator module outside, plastic packaging shell is wrapped in stator core, the outside of overhang insulation and coil windings, in the middle of plastic packaging shell bottom surface, form cavity, receiver extend into cavity the inside, in the middle of the end face of plastic packaging shell, stretch out pillar, in the middle of pillar, on axial direction, offer through hole, through hole is communicated with cavity, rotating shaft is nested in through hole the inside.
Stretch out outward respectively in the middle of receiver and pillar at rotating shaft two ends described above.
The nested axle sleeve that is provided with in through hole the inside described above, the nested axle sleeve the inside that is arranged on of rotating shaft.
The lead-out wire of coil windings described above stretches out outward from plastic packaging outer casing top surface.
Between a column outer wall described above and the end face of plastic packaging shell, be circumferentially provided with some ribs.
The end face outer ledge of plastic packaging shell described above stretches out annular flange outward.
In the middle of the diapire of cavity volume described above, offer installing hole, stretch out 2 annular protrusions at the lateral surface of receiver bottom, between 2 annular protrusions, form cannelure, receiver is arranged on installing hole the inside, and installing hole inwall is nested in cannelure the inside.
The utility model compared with prior art, there is following effect: 1) overhang insulation is arranged on the end face of stator core, coil windings is reeled and is arranged on overhang insulation, described rotor assembly comprises with the casing sleeve of cavity volume and is arranged on some permanent magnets of the cavity volume inwall of casing sleeve, casing jacket casing is in stator module outside, in cavity volume the inside, in the middle of the diapire of cavity volume, be provided with receiver, receiver two ends are provided with bearing chamber, bearing is installed in bearing chamber the inside, rotating shaft is positioned at receiver the inside and two supports on bearing, be provided with plastic packaging shell in stator module outside, plastic packaging shell is wrapped in stator core, the outside of overhang insulation and coil windings, in the middle of plastic packaging shell bottom surface, form cavity, receiver extend into cavity the inside, in the middle of the end face of plastic packaging shell, stretch out pillar, in the middle of pillar, on axial direction, offer through hole, through hole is communicated with cavity, rotating shaft is nested in through hole the inside, this is simple in structure, easy for installation, the lead-out wire of coil windings needn't stretch out in the middle of rotating shaft, production technology is simple, cost is low, motor operational efficiency is high, heat radiation, waterproof effect ideal, 2) stretch out outward respectively in the middle of receiver and pillar at rotating shaft two ends, can easily motor be arranged in load by two shaft extension ends of rotating shaft, 3) the nested axle sleeve that is provided with in through hole the inside, the nested axle sleeve the inside that is arranged on of rotating shaft, simple in structure, easy for installation, reliability is high, 4) lead-out wire of coil windings stretches out outward from plastic packaging outer casing top surface, simple in structure, easy for installation, and cost is low, 5) prop up between column outer wall and the end face of plastic packaging shell and be circumferentially provided with some ribs, can strengthen the bonding strength between pillar and plastic packaging shell, improve its reliability, rib has certain heat-sinking capability simultaneously, and the heat that stator module is produced in running is taken out of, 6) the end face outer ledge of plastic packaging shell stretches out annular flange outward, prevents that the water droplet staying from plastic packaging outer casing top surface from flowing into rotor assembly and entering face, avoids affecting motor operation, 7) in the middle of the diapire of cavity volume, offer installing hole, stretch out 2 annular protrusions at the lateral surface of receiver bottom, between 2 annular protrusions, form cannelure, receiver is arranged on installing hole the inside, installing hole inwall is nested in cannelure the inside, simple in structure, easy installation and reliable.
Brief description of the drawings:
Fig. 1 is stereogram of the present utility model;
Fig. 2 is exploded view of the present utility model;
Fig. 3 is vertical view of the present utility model;
Fig. 4 is A-A cutaway view in Fig. 3.
Embodiment:
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
As shown in Figures 1 to 4, the utility model is a kind of external rotor electric machine, comprise stator module 1, rotor assembly 2 and rotating shaft 3, described stator module 1 comprises stator core 11, overhang insulation 12 and coil windings 13, overhang insulation 12 is arranged on the end face of stator core 11, coil windings 13 is reeled and is arranged on overhang insulation 12, described rotor assembly 2 comprises with the casing sleeve 21 of cavity volume 20 and is arranged on some permanent magnets 22 of cavity volume 20 inwalls of casing sleeve 21, casing sleeve 21 is enclosed within stator module 1 outside, in cavity volume 20 the insides, in the middle of the diapire of cavity volume 20, be provided with receiver 4, receiver 4 two ends are provided with bearing chamber, bearing 5 is installed in bearing chamber the inside, rotating shaft 3 is positioned at receiver 4 the insides and two supports on bearing 5, be provided with plastic packaging shell 6 in stator module 1 outside, plastic packaging shell 6 is wrapped in stator core 11, the outside of overhang insulation 12 and coil windings 13, in the middle of plastic packaging shell 6 bottom surfaces, form cavity 61, receiver 4 extend into cavity 61 the insides, in the middle of the end face of plastic packaging shell 6, stretch out pillar 62, in the middle of pillar 62, on axial direction, offer through hole 620, through hole 620 is communicated with cavity 61, rotating shaft 3 is nested in through hole 620 the insides.
Stretch out outward respectively in the middle of receiver 4 and pillar 62 at rotating shaft 3 two ends.
The nested axle sleeve 7 that is provided with in through hole 620 the insides, nested axle sleeve 7 the insides that are arranged on of rotating shaft 3.
The lead-out wire 130 of coil windings 13 stretches out outward from plastic packaging shell 6 end faces.
Between pillar 62 outer walls and the end face of plastic packaging shell 6, be circumferentially provided with some ribs 63.
The end face outer ledge of plastic packaging shell 6 stretches out annular flange 64 outward.
The nested mounting flange 8 that is provided with in casing sleeve 21 outsides.
In the middle of the diapire of cavity volume 20, offer installing hole 210, stretch out 2 annular protrusions 41 at the lateral surface of receiver 4 bottoms, between 2 annular protrusions 41, form cannelure 410, receiver 4 is arranged on installing hole 210 the insides, and casing sleeve 21 is nested in cannelure 410 the insides
Principle of the present utility model is: be provided with plastic packaging shell 6 in stator module 1 outside, plastic packaging shell 6 is wrapped in the outside of stator core 11, overhang insulation 12 and coil windings 13, in the middle of the end face of plastic packaging shell 6, stretch out pillar 62, in the middle of pillar 62, on axial direction, offer through hole 620, rotating shaft 3 is nested in through hole 620 the insides, the lead-out wire 130 of coil windings 13 stretches out outward from plastic packaging shell 6 end faces, this is simple in structure, easy for installation, the lead-out wire of coil windings needn't stretch out in the middle of rotating shaft, production technology is simple, cost is low, and motor operational efficiency is high.
Claims (8)
1. an external rotor electric machine, comprise stator module (1), rotor assembly (2) and rotating shaft (3), described stator module (1) comprises stator core (11), overhang insulation (12) and coil windings (13), overhang insulation (12) is arranged on the end face of stator core (11), coil windings (13) is reeled and is arranged on overhang insulation (12), described rotor assembly (2) comprises with the casing sleeve (21) of cavity volume (20) and is arranged on some permanent magnets (22) of cavity volume (20) inwall of casing sleeve (21), casing sleeve (21) is enclosed within stator module (1) outside, in cavity volume (20) the inside, in the middle of the diapire of cavity volume (20), be provided with receiver (4), receiver (4) two ends are provided with bearing chamber, bearing (5) is installed in bearing chamber the inside, rotating shaft (3) is positioned at receiver (4) the inside and two supports on bearing (5), it is characterized in that: be provided with plastic packaging shell (6) in stator module (1) outside, plastic packaging shell (6) is wrapped in stator core (11), the outside of overhang insulation (12) and coil windings (13), in the middle of plastic packaging shell (6) bottom surface, form cavity (61), receiver (4) extend into cavity (61) the inside, in the middle of the end face of plastic packaging shell (6), stretch out pillar (62), in the middle of pillar (62), on axial direction, offer through hole (620), through hole (620) is communicated with cavity (61), rotating shaft (3) is nested in through hole (620) the inside.
2. a kind of external rotor electric machine according to claim 1, is characterized in that: stretch out outward respectively in the middle of receiver (4) and pillar (62) at rotating shaft (3) two ends.
3. a kind of external rotor electric machine according to claim 1 and 2, is characterized in that: at the nested axle sleeve (7) that is provided with in through hole (620) the inside, and nested axle sleeve (7) the inside that is arranged on of rotating shaft (3).
4. a kind of external rotor electric machine according to claim 1 and 2, is characterized in that: the lead-out wire (130) of coil windings (13) stretches out outward from plastic packaging shell (6) end face.
5. a kind of external rotor electric machine according to claim 3, is characterized in that: between pillar (62) outer wall and the end face of plastic packaging shell (6), be circumferentially provided with some ribs (63).
6. a kind of external rotor electric machine according to claim 3, is characterized in that: the end face outer ledge of plastic packaging shell (6) stretches out annular flange (64) outward.
7. a kind of external rotor electric machine according to claim 1 and 2, is characterized in that: at the nested mounting flange (8) that is provided with in casing sleeve (21) outside.
8. a kind of external rotor electric machine according to claim 1 and 2, it is characterized in that: in the middle of the diapire of cavity volume (20), offer installing hole (210), lateral surface in receiver (4) bottom stretches out 2 annular protrusions (41), between 2 annular protrusions (41), form cannelure (410), receiver (4) is arranged on installing hole (210) the inside, and installing hole (210) inwall is nested in cannelure (410) the inside.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044947.8U CN203707914U (en) | 2014-01-23 | 2014-01-23 | External rotor motor |
| PCT/CN2014/087341 WO2015109864A1 (en) | 2014-01-23 | 2014-09-24 | External rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044947.8U CN203707914U (en) | 2014-01-23 | 2014-01-23 | External rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203707914U true CN203707914U (en) | 2014-07-09 |
Family
ID=51058294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420044947.8U Expired - Lifetime CN203707914U (en) | 2014-01-23 | 2014-01-23 | External rotor motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203707914U (en) |
| WO (1) | WO2015109864A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015109864A1 (en) * | 2014-01-23 | 2015-07-30 | 中山大洋电机股份有限公司 | External rotor motor |
| WO2016150128A1 (en) * | 2015-03-20 | 2016-09-29 | 中山大洋电机股份有限公司 | Manufacturing method for plastic package stator, plastic package stator and external rotor motor |
| WO2016155265A1 (en) * | 2015-03-31 | 2016-10-06 | 中山大洋电机股份有限公司 | Outer rotor motor |
| WO2016201808A1 (en) * | 2015-06-15 | 2016-12-22 | 中山大洋电机股份有限公司 | Brushless direct current external-rotor motor and fan using same |
| CN106612027A (en) * | 2015-10-27 | 2017-05-03 | 建准电机工业股份有限公司 | Motor structure and rotor thereof |
| CN108539933A (en) * | 2018-06-06 | 2018-09-14 | 深圳市道通智能航空技术有限公司 | Motor, power plant and unmanned vehicle |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI572120B (en) * | 2015-11-24 | 2017-02-21 | 建準電機工業股份有限公司 | Motor rotor |
| CN113890257A (en) * | 2021-10-08 | 2022-01-04 | 中山市普阳电子科技有限公司 | DC water-fetching motor for air conditioner |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003018787A (en) * | 2001-06-29 | 2003-01-17 | Matsushita Electric Ind Co Ltd | Brushless motor |
| CN101615817B (en) * | 2008-06-26 | 2012-07-04 | 中山大洋电机股份有限公司 | Outer rotor motor |
| CN201726253U (en) * | 2010-07-12 | 2011-01-26 | 付强 | Electrocar motor cooling structure |
| CN102332779A (en) * | 2010-07-12 | 2012-01-25 | 付强 | Motor cooling structure of electric vehicle |
| KR101141435B1 (en) * | 2010-09-28 | 2012-05-04 | 삼성전기주식회사 | Motor, fabrication method thereof, and optical disc drive using the same |
| CN103296829A (en) * | 2013-06-03 | 2013-09-11 | 众泰控股集团有限公司 | Hub motor for automobile |
| CN203707914U (en) * | 2014-01-23 | 2014-07-09 | 中山大洋电机股份有限公司 | External rotor motor |
-
2014
- 2014-01-23 CN CN201420044947.8U patent/CN203707914U/en not_active Expired - Lifetime
- 2014-09-24 WO PCT/CN2014/087341 patent/WO2015109864A1/en active Application Filing
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015109864A1 (en) * | 2014-01-23 | 2015-07-30 | 中山大洋电机股份有限公司 | External rotor motor |
| WO2016150128A1 (en) * | 2015-03-20 | 2016-09-29 | 中山大洋电机股份有限公司 | Manufacturing method for plastic package stator, plastic package stator and external rotor motor |
| CN106033920A (en) * | 2015-03-20 | 2016-10-19 | 中山大洋电机股份有限公司 | Manufacturing method of plastic package stator, plastic package stator and external rotor motor |
| WO2016155265A1 (en) * | 2015-03-31 | 2016-10-06 | 中山大洋电机股份有限公司 | Outer rotor motor |
| WO2016201808A1 (en) * | 2015-06-15 | 2016-12-22 | 中山大洋电机股份有限公司 | Brushless direct current external-rotor motor and fan using same |
| CN106612027A (en) * | 2015-10-27 | 2017-05-03 | 建准电机工业股份有限公司 | Motor structure and rotor thereof |
| CN106612027B (en) * | 2015-10-27 | 2019-02-19 | 建准电机工业股份有限公司 | Motor structure and rotor thereof |
| CN108539933A (en) * | 2018-06-06 | 2018-09-14 | 深圳市道通智能航空技术有限公司 | Motor, power plant and unmanned vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015109864A1 (en) | 2015-07-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |
|
| CX01 | Expiry of patent term |