CN203278456U - External rotor DC brushless motor with high load intensity - Google Patents
External rotor DC brushless motor with high load intensity Download PDFInfo
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- CN203278456U CN203278456U CN 201320218148 CN201320218148U CN203278456U CN 203278456 U CN203278456 U CN 203278456U CN 201320218148 CN201320218148 CN 201320218148 CN 201320218148 U CN201320218148 U CN 201320218148U CN 203278456 U CN203278456 U CN 203278456U
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- external rotor
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Abstract
The utility model particularly relates to an external rotor DC brushless motor with high load intensity and belongs to the technical field of a motor. The external rotor DC brushless motor with high load intensity comprises a stator assembly, an external rotor assembly and an end cap. A bearing pedestal supporting the external rotor assembly to rotate is disposed in the cavity of the external rotor assembly. The stator assembly is sleeved on the bearing pedestal. The end cap used for sealing the external rotor assembly is sleeved at the bottom of the bearing pedestal. The bearing pedestal made by an aluminium casting process replaces a connection shaft branch on a conventional external rotor DC brushless motor structure, so that the load intensity is obviously higher than that of the conventional external rotor DC brushless motor structure. The external rotor DC brushless motor of the utility model is easy and convenient to mount and use, is reliable in connection and enables stable consistency of a product.
Description
Technical field
The utility model belongs to technical field of motors, refers in particular to the high external-rotor DC. brush-less of a kind of intensity of load.
Background technology
The use of motor is more and more universal in manufacturing at present, and is also more and more higher to the requirement of motor, in order to improve product competitiveness in industry, develops the demand that various motors satisfy different customers.A kind of external rotor electric machine is wherein arranged, and external rotor electric machine is opposite with general electric machine structure, rotor assembly outside, stator module is interior.Its advantage is that moment of inertia is large, good heat dissipation, saving copper cash, and blower fan even load part can directly be embedded on rotor, has satisfied the small size whole machine installation dimensional requirement of certain power.But due to the particularity of this electric machine structure, this motor rotor component outside, cantilever type is installed, and the connecting axle branch that drives blower fan even load part rotation use is had certain strict demand, such as intensity, hardness.In each parts of motor, the connecting axle branch is to guarantee the stability of motor when work, if the intensity of connecting axle branch, hardness do not reach requirement, in use produces distortion or heavy wear, all can have a strong impact on motor performance and useful life.
Manufacturing enterprise is all generally the connecting axle branch that adopts iron and steel material quality to make now, and the diameter of section of this connecting axle branch is often more tiny, and very high to requirement on machining accuracy.For the stability when guaranteeing machine operation, just the connecting axle branch is carried out the overstriking design or adopts the high steel alloy material of strength character to make the requirement that can reach intensive work.Owing to limited by motor volume size and production cost reason, this scheme is design and the making of the small size motor of applicable certain power not necessarily.In existing technology: make the connecting axle branch because needs adopt the steel alloy material that diameter is thicker or strength character is good, be subjected to motor volume size and unit manufacturing cost to increase restriction, this scheme is the small size motor of applicable certain power not necessarily.Because the human factor impact is a lot, homogeneity of product is good not.
Summary of the invention
The purpose of this utility model is to provide a kind ofly to be had under the prerequisites such as driving torque is large, good heat dissipation, saving copper cash, efficient height keeping external rotor electric machine, overcome the large load elements requirement of the inapplicable weight of external-rotor DC. brush-less, load is high, simple in structure, easy for installation, the high external-rotor DC. brush-less of intensity of load good product consistency for can bearing of designing.
The purpose of this utility model is achieved in that the external-rotor DC. brush-less that a kind of intensity of load is high, comprise stator module, outer rotor component and end cap, wherein, described outer rotor component inner chamber is provided with the bearing pedestal that supports its rotation, stator module is set on bearing pedestal, and bearing pedestal bottom is arranged with the end cap for the sealing outer rotor component.
According to the high external-rotor DC. brush-less of a kind of intensity of load of the above, wherein, described bearing pedestal is hollow structure, and an end is provided with mount pad, and the other end is provided with the groove that supports the outer rotor component rotation.
According to the high external-rotor DC. brush-less of a kind of intensity of load of the above, wherein, described inner hole of bearing seat is provided with cable-through hole.
According to the high external-rotor DC. brush-less of a kind of intensity of load of the above, wherein, in described groove and the outer rotor component inner chamber near bearing all is installed on the bearing pedestal of end cap, and the jump ring for Limit Bearing is installed simultaneously.
According to the high external-rotor DC. brush-less of a kind of intensity of load of the above, wherein, the center on described outer rotor component inner chamber top is provided with the protruding axle that matches with the groove of bearing pedestal.
According to the high external-rotor DC. brush-less of a kind of intensity of load of the above, wherein, described outer rotor component cylindrical side is arranged with flange, and by screw, flange and end cap is fixed on outer rotor component.
The utility model outstanding and useful technique effect compared to existing technology is:
1, can reduce the production cost;
2, reduce processing and installation procedure;
3, the concentricity precision can reach very high, and consistency is fine;
4, can bear the large load elements of weight.
Description of drawings
Fig. 1 is structural representation of the present utility model;
In figure: 1-bearing pedestal, 2-bearing, 3-end cap, 4-flange, 5-jump ring, 6-stator module, 7-outer rotor component, 8-cable-through hole, 9-screw, 10-groove, the protruding axle of 11-.
Embodiment
The utility model is further described with specific embodiment below in conjunction with accompanying drawing, referring to Fig. 1: the external-rotor DC. brush-less that a kind of intensity of load is high, comprise stator module 6, outer rotor component 7 and end cap 3, wherein, described outer rotor component 7 inner chambers are provided with the bearing pedestal 1 that supports its rotation, stator module 6 is set on bearing pedestal 1, and bearing pedestal 1 bottom is arranged with the end cap 3 for sealing outer rotor component 7.
According to the high external-rotor DC. brush-less of a kind of intensity of load of the above, wherein, described bearing pedestal 1 is hollow structure, and an end is provided with mount pad, and the other end is provided with the groove 10 that supports outer rotor component 7 rotations.
According to the high external-rotor DC. brush-less of a kind of intensity of load of the above, wherein, described bearing pedestal 1 endoporus is provided with cable-through hole 8.
According to the high external-rotor DC. brush-less of a kind of intensity of load of the above, wherein, in described groove 10 with on the bearing pedestal 1 of outer rotor component 7 inner chambers near end cap 3, bearing 2 is installed all, and the jump ring 5 for Limit Bearing 2 is installed simultaneously.
According to the high external-rotor DC. brush-less of a kind of intensity of load of the above, wherein, the center on described outer rotor component 7 inner chamber tops is provided with the protruding axle 11 that matches with the groove 10 of bearing pedestal 1.
According to the high external-rotor DC. brush-less of a kind of intensity of load of the above, wherein, described outer rotor component 7 cylindrical sides are arranged with flange 4, and by screw 9, flange 4 and end cap 3 are fixed on outer rotor component 7.
Adopt the bearing pedestal 1 that the aluminium casting process is made to replace the structural connecting axle branch of existing external-rotor DC. brush-less to use function, intensity of load is apparently higher than the intensity of load of existing external-rotor DC. brush-less structure, installation and use is simple and convenient, and connect also reliably, the consistency of product is also stable.
Above-described embodiment is only preferred embodiment of the present utility model, is not to limit according to this protection range of the present utility model, therefore: all equivalences of doing according to structure of the present utility model, shape, principle change, within all should being covered by protection range of the present utility model.
Claims (6)
1. external-rotor DC. brush-less that intensity of load is high, comprise stator module, outer rotor component and end cap, it is characterized in that: described outer rotor component inner chamber is provided with the bearing pedestal that supports its rotation, stator module is set on bearing pedestal, and bearing pedestal bottom is arranged with the end cap for the sealing outer rotor component.
2. the high external-rotor DC. brush-less of a kind of intensity of load according to claim 1, it is characterized in that: described bearing pedestal is hollow structure, and an end is provided with mount pad, the other end is provided with the groove that supports the outer rotor component rotation.
3. the high external-rotor DC. brush-less of a kind of intensity of load according to claim 2, it is characterized in that: described inner hole of bearing seat is provided with cable-through hole.
4. the high external-rotor DC. brush-less of a kind of intensity of load according to claim 2 is characterized in that: in described groove and the outer rotor component inner chamber near bearing all is installed on the bearing pedestal of end cap, and the jump ring for Limit Bearing is installed simultaneously.
5. the high external-rotor DC. brush-less of a kind of intensity of load according to claim 1 is characterized in that: the center on described outer rotor component inner chamber top is provided with the protruding axle that matches with the groove of bearing pedestal.
6. the high external-rotor DC. brush-less of a kind of intensity of load according to claim 1, it is characterized in that: described outer rotor component cylindrical side is arranged with flange, and by screw, flange and end cap is fixed on outer rotor component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320218148 CN203278456U (en) | 2013-04-25 | 2013-04-25 | External rotor DC brushless motor with high load intensity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320218148 CN203278456U (en) | 2013-04-25 | 2013-04-25 | External rotor DC brushless motor with high load intensity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203278456U true CN203278456U (en) | 2013-11-06 |
Family
ID=49508783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320218148 Expired - Fee Related CN203278456U (en) | 2013-04-25 | 2013-04-25 | External rotor DC brushless motor with high load intensity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203278456U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685172A (en) * | 2017-02-10 | 2017-05-17 | 浙江大东吴汽车电机有限公司 | Three-phase permanent magnet external rotor motor and method for assembling stator and rotor |
| WO2018072738A1 (en) * | 2016-10-20 | 2018-04-26 | 深圳市道通智能航空技术有限公司 | Motor assembly, driving motor, and carrier device |
| CN109660058A (en) * | 2019-01-03 | 2019-04-19 | 珠海仲华智能制造技术有限公司 | A kind of motor and aircraft power device |
-
2013
- 2013-04-25 CN CN 201320218148 patent/CN203278456U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018072738A1 (en) * | 2016-10-20 | 2018-04-26 | 深圳市道通智能航空技术有限公司 | Motor assembly, driving motor, and carrier device |
| CN106685172A (en) * | 2017-02-10 | 2017-05-17 | 浙江大东吴汽车电机有限公司 | Three-phase permanent magnet external rotor motor and method for assembling stator and rotor |
| CN109660058A (en) * | 2019-01-03 | 2019-04-19 | 珠海仲华智能制造技术有限公司 | A kind of motor and aircraft power device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Wucheng District of Zhejiang province 321000 Venus street Jinhua City No. 163 Building No. 2 Patentee after: INCORE TECHNOLOGY CO., LTD. Address before: 321016, No. 163, No. 2, Jinxing South Street, Zhejiang, Jinhua Patentee before: JINHUA INCORE TECHNOLOGY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20190425 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |