CN201226465Y - External rotor motor - Google Patents
External rotor motor Download PDFInfo
- Publication number
- CN201226465Y CN201226465Y CNU2008200500214U CN200820050021U CN201226465Y CN 201226465 Y CN201226465 Y CN 201226465Y CN U2008200500214 U CNU2008200500214 U CN U2008200500214U CN 200820050021 U CN200820050021 U CN 200820050021U CN 201226465 Y CN201226465 Y CN 201226465Y
- Authority
- CN
- China
- Prior art keywords
- stator
- insulation crust
- electric machine
- external rotor
- stator core
- 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
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Abstract
The utility model provides an outer rotor motor, which comprises a stator assembly, a rotor assembly (12) and a rotor shaft (7). The rotor assembly (12) is enclosed outside the stator assembly; and the rotor assembly (12) is connected with the rotor shaft (7). The rotor shaft (7) is supported and arranged on the stator assembly through a bearing (6). The outer rotor motor is characterized in that the stator assembly comprises a stator core (1) and a coil winding (2); the coil winding (2) is wound on the stator core (1); insulating cases (3) are injected and molded outside the stator core (1) and the coil winding (2); the insulating cases (3) wrap and isolate the stator core (1) and the coil winding (2) from the outside. The outer rotor motor has good insulativity and is waterproof, dustproof and rot-proof, which prevents non ferrous metal wires from being oxidized with both ends insulated. The safety and the reliability are improved; the weight and the cost of the motor are reduced; the heat elimination effect of the stator is improved; the temperature rise of the motor is reduced; the motor is installed more conveniently; and the production efficiency is higher.
Description
Technical field:
The utility model relates to a kind of external rotor electric machine.
Background technology:
At present, stator structure in the external rotor electric machine comprises end cap, stator core and coil windings and insulator, coil windings is on stator core, on the coil windings of exposing at the stator core two ends insulator is installed, the stator that installs insulator press-fits with the Aluminum Alloy Cover tight fit again, process bearing chamber and screw hole on Aluminum Alloy Cover, bearing chamber is used for the supporting motor rotation, and screw hole is used to install and fix stator component.There is following deficiency in this stator structure: deposit non-watertightly, not anti-oxidation, dustproof, insulation property are bad, and are quantitatively heavy, and cost height, globality are poor, and production process is many, and production efficiency is low, and the bearing chamber manufacturing procedure is many, and the dimensional accuracy of bearing chamber is lower.
Summary of the invention:
The purpose of this utility model provides a kind of external rotor electric machine, is injected with insulation crust in stator core and coil windings outside, and insulation crust wraps in the inside with stator core and coil windings and realizes being isolated from the outside.Motor waterproof, oxidation, anti-dust performance are improved greatly, good insulating, quantitatively light, low, the good integrity of cost is simplified production process, the production efficiency height.
The technical solution of the utility model is achieved in that
A kind of external rotor electric machine, comprise stator component, rotor part and rotating shaft, described rotor part is sleeved on the outside of stator component, rotor part and rotating shaft are installed and are linked together, rotating shaft is installed on the stator component by the bearing supporting, and described stator component comprises stator core, coil windings, and coil windings is on stator core, be injected with insulation crust in stator core and coil windings outside, insulation crust wraps in the inside with stator core and coil windings and realizes being isolated from the outside.
The utility model compared with prior art has following advantage: 1) by being injected with insulation crust at stator core and coil windings outside, insulation crust wraps in the inside with stator core and coil windings and realizes being isolated from the outside, constitute the integral insulation body of external rotor electric machine stator, insulator is good, solve external rotor electric machine waterproof and dustproof, anticorrosion, anti-non ferrous wire oxidation, overhang insulation problem, improved security reliability; 2) with the insulating material former non-ferrous metal of generation of injection moulding, reduce motor weight and cost, improve the stator radiating effect, reduce electric machine temperature rise; 3) motor is easier for installation, and production efficiency is more increased.
At technique scheme, the utility model can be made following improvement:
One end of above-mentioned described insulation crust extends installation base vertically, and installation base is one-body molded when the injection moulding insulation crust, is used for fixing stator component, need not increase metal end in addition, and is simple in structure, simplifies working process, and assembling is simple, saves production cost.
The above-mentioned described axis hole that in insulation crust, is formed centrally, form bearing chamber at the axis hole two ends, Bearing Installation is in the bearing chamber the inside, rotating shaft is installed on the insulation crust by the bearing supporting, bearing chamber precision height by injection moulding formation, exempt machining processes, enhanced productivity, guaranteed the assembly precision of motor.
8, above-mentionedly describedly be inlaid with several inserts at raised head face, inserts is provided with the screw hole that is used to install and fix stator component, and is simple in structure, easy for installation.
The above-mentioned described stator cable guide that embeds on insulation crust, the conductive lead wire of the end of coil windings stretches out the insulation crust outside by the stator lead folder, and is simple in structure, easy for installation.
Above-mentioned described insulation crust is BMC BMC material or other thermoplasticity, the injection moulding of heat cured insulation material or die cast.Stator reduces motor weight by BMC BMC material or other thermoplasticity, the former non-ferrous metal of heat cured insulation material substitution and general plastic material, improves the stator radiating effect; Reduce electric machine temperature rise.
Description of drawings:
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structure cutaway view of the present utility model;
Fig. 2 is the structural representation of the utility model plastic packaging stator.
Embodiment:
As Fig. 1, shown in Figure 2, a kind of external rotor electric machine, comprise stator component, rotor part 12 and rotating shaft 7, described rotor part 12 is sleeved on the outside of stator component, rotor part 12 and rotating shaft 7 are installed and are linked together, rotating shaft 7 is installed on the stator component by bearing 6 supportings, stator component comprises stator core 1, coil windings 2 and insulation crust 3, coil windings 2 is on stator core 1, be injected with the insulation crust 3 that is made of insulating material at stator core 1 and coil windings 2 outsides, insulation crust 3 wraps in the inside with stator core 1 and coil windings 2 and realizes being isolated from the outside.One end of insulation crust 3 extends installation base 14 vertically.Be formed centrally axis hole 4 in insulation crust 3, form bearing chamber 5 at axis hole 4 two ends, bearing 6 is installed in bearing chamber 5 the insides, and rotating shaft 7 is installed on the insulation crust 3 by bearing 6 supportings.Be inlaid with several inserts 8 at boss 14 end faces, inserts 8 is provided with the screw hole 9 that is used to install and fix stator component.In the end of stator core 1 overhang insulation piece 10 is installed, overhang insulation piece 10 is kept apart the end face and the coil windings 2 of stator core 1.Embed a stator cable guide 11 on insulation crust 3, the end conductive lead wire of coil windings 2 stretches out insulation crust 3 outsides by stator lead folder 11.Insulation crust 3 is BMC injection mo(u)ldings.Boss 14 end faces are provided with block of information 13, and block of information 13 is main to show the nominal parameter, security information etc. of motor manufacturer, motor.
Stator of the present utility model is by using BMC BMC material or other thermoplasticity, the injection moulding of heat cured insulation material or die cast, external rotor stator core, the sealing of coil windings 2 both ends are formed insulation crust 3, constitute the integral insulation of external rotor electric machine stator, two bearing chambers 5 of shaping supporting rotor parts rotation, one end of insulation crust 3 extends installation base 14 vertically and is used to install and fix stator component, need not use the aluminum metal end cap; Be inlaid with several inserts 8 at boss 14 end faces, inserts 8 is provided with the screw hole 9 that is used to install and fix stator component.Solve external rotor electric machine waterproof, anticorrosion, non ferrous wire oxidation, overhang insulation and installation question, improved security reliability; Substitute former non-ferrous metal and general plastic material by the BMC seal molding, reduce motor weight, improve the stator radiating effect; Reduce electric machine temperature rise; By two bearing chamber 5 supporting motors rotation of injection molded stator, guaranteed that precision exempted machining processes, enhance productivity.
Claims (7)
1, a kind of external rotor electric machine, comprise stator component, rotor part (12) and rotating shaft (7), described rotor part (12) is sleeved on the outside of stator component, rotor part (12) and rotating shaft (7) are installed and are linked together, rotating shaft (7) is installed on the stator component by bearing (6) supporting, it is characterized in that: described stator component comprises stator core (1), coil windings (2), coil windings (2) is on stator core (1), be injected with insulation crust (3) in stator core (1) and coil windings (2) outside, insulation crust (3) wraps in the inside realization with stator core (1) and coil windings (2) and is isolated from the outside.
2, a kind of external rotor electric machine according to claim 1 is characterized in that: an end of insulation crust (3) extends installation base (14) vertically.
3, a kind of external rotor electric machine according to claim 1 and 2, it is characterized in that: in insulation crust (3), be formed centrally axis hole (4), form bearing chamber (5) at axis hole (4) two ends, bearing (6) is installed in bearing chamber (5) the inside, and rotating shaft (7) is installed on the insulation crust (3) by bearing (6) supporting.
4, a kind of external rotor electric machine according to claim 3 is characterized in that: be inlaid with several inserts (8) at boss (14) end face, inserts (8) is provided with the screw hole (9) that is used to install and fix stator component.
5, a kind of external rotor electric machine according to claim 3 is characterized in that: go up at insulation crust (3) and embed a stator cable guide (11), the conductive lead wire of the end of coil windings (2) stretches out insulation crust (3) outside by stator lead folder (11).
6, a kind of external rotor electric machine according to claim 1 is characterized in that: insulation crust (3) is BMC BMC material or other thermoplasticity, the injection moulding of heat cured insulation material or die cast.
7, a kind of external rotor electric machine according to claim 3 is characterized in that: boss (12) end face is provided with block of information (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200500214U CN201226465Y (en) | 2008-06-26 | 2008-06-26 | External rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200500214U CN201226465Y (en) | 2008-06-26 | 2008-06-26 | External rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201226465Y true CN201226465Y (en) | 2009-04-22 |
Family
ID=40599367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200500214U Expired - Lifetime CN201226465Y (en) | 2008-06-26 | 2008-06-26 | External rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201226465Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009155865A1 (en) * | 2008-06-26 | 2009-12-30 | 中山大洋电机股份有限公司 | An outer rotor motor |
| CN105449900A (en) * | 2015-12-30 | 2016-03-30 | 卧龙电气集团股份有限公司 | Plastic-packaged outer rotor motor with mounting feet |
| CN107645214A (en) * | 2016-07-22 | 2018-01-30 | 大青节能科技股份有限公司 | The stator of motor |
| WO2018035716A1 (en) * | 2016-08-23 | 2018-03-01 | 北京臻迪科技股份有限公司 | External rotor electric machine |
| CN110661351A (en) * | 2018-06-29 | 2020-01-07 | 日本电产株式会社 | Motor with a stator having a stator core |
| CN113922555A (en) * | 2021-10-11 | 2022-01-11 | 珠海格力电器股份有限公司 | Motor end cover assembly, stator assembly and motor |
-
2008
- 2008-06-26 CN CNU2008200500214U patent/CN201226465Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009155865A1 (en) * | 2008-06-26 | 2009-12-30 | 中山大洋电机股份有限公司 | An outer rotor motor |
| CN105449900A (en) * | 2015-12-30 | 2016-03-30 | 卧龙电气集团股份有限公司 | Plastic-packaged outer rotor motor with mounting feet |
| CN107645214A (en) * | 2016-07-22 | 2018-01-30 | 大青节能科技股份有限公司 | The stator of motor |
| WO2018035716A1 (en) * | 2016-08-23 | 2018-03-01 | 北京臻迪科技股份有限公司 | External rotor electric machine |
| CN110661351A (en) * | 2018-06-29 | 2020-01-07 | 日本电产株式会社 | Motor with a stator having a stator core |
| CN113922555A (en) * | 2021-10-11 | 2022-01-11 | 珠海格力电器股份有限公司 | Motor end cover assembly, stator assembly and motor |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090422 |