CN202172317U - Liquid-cooled external rotor motor - Google Patents
Liquid-cooled external rotor motor Download PDFInfo
- Publication number
- CN202172317U CN202172317U CN2011202750714U CN201120275071U CN202172317U CN 202172317 U CN202172317 U CN 202172317U CN 2011202750714 U CN2011202750714 U CN 2011202750714U CN 201120275071 U CN201120275071 U CN 201120275071U CN 202172317 U CN202172317 U CN 202172317U
- Authority
- CN
- China
- Prior art keywords
- rotor
- housing
- stator
- liquid
- end cap
- 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 - Fee Related
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Abstract
The utility model relates to a liquid-cooled external rotor motor comprising a rotor, a stator, a housing and an end cover; wherein bearings used for positioning are provided between the rotor and the stator as well as between the rotor and the end cover; a rotor shaft and a stator shaft form a coaxial structure; sealing rings are also provided between the rotor and the end cover, and between the rotor and the stator, joint parts between the stator and the housing as well as between the housing and the end cover are provided with sealing loops; a bottom of the housing and the end cover are respectively provided with a channel for cooling fluid to flow in and out, the channels are communicated with gaps between the rotor and the housing and between the rotor and the end cover; and the cooling fluid can flow in and out through the channels of the housing and the end cover, and also can flow into the stator shaft, thereby achieving a circulating cooling effect. The liquid-cooled external rotor motor of the utility model has the advantages of reasonable design, compact structure, and good rotor heat dissipation effect; the liquid-cooled external rotor motor solves the problem of field loss of a permanent magnet caused by a high temperature; and the liquid-cooled external rotor motor also has a reliable rotor support, and is protected by the housing, thus the use field of the external rotor motor can be developed.
Description
Technical field:
The utility model belongs to machine field, particularly a kind of liquid-cooled external rotor electric machine.
Background technology:
External rotor electric machine is as a kind of structure of motor, and it has many characteristics such as big torsion, high efficiency.Because rotor outside, has limited to many utilizations place, also there is the external rotor electric machine of band housing to emerge for this reason, its structure comprises rotor, stator, housing and end cap etc., between rotor and stator and end cap, has been provided with the bearing of support and positioning action.Also because the setting up of housing, and make the heat radiation of rotor become problem.
Summary of the invention:
The purpose of the utility model is that the gap between a kind of rotor of design and housing can be through the liquid-cooled external rotor electric machine of cooling fluid.
The utility model technical scheme is achieved in that a kind of liquid-cooled external rotor electric machine, comprises rotor, stator, housing and end cap; Between rotor and stator and rotor and end cap, be provided with the bearing of location; Armature spindle and stator axis are the concentric structure, it is characterized in that also being provided with sealing ring between rotor and end cap and rotor and stator, and the junction surface between stator and housing, between housing and end cap is equipped with sealing ring; Be respectively equipped with the runner of turnover cooling fluid on said housing bottom and the end cap, the gap between described runner and rotor and housing, between rotor and end cap communicates.The cooling fluid power forms the circulation cooling effect through the runner turnover of housing and end cap.
Described rotor offers radial pump ditch on the one end at least.Utilize the radial pump ditch of rotation to drive liquid circulation, need not external coolant pump.
Said armature spindle is a solid shafting, and stator axis has a heat radiation inner chamber, and its heat radiation inner chamber two ends are communicated with the gap between rotor and housing, rotor and end cap respectively, form the circulation cooling structure, improve the heat dispersion of stator, suppress the motor internal temperature rise.
Said armature spindle and stator axis are hollow-core construction, and both connect each other, form heat dissipation channel with the external world.
The utlity model has reasonable in design, compact conformation, rotor good heat dissipation effect, solved the problem of permanent magnet Yin Gaowen loss of excitation; Moreover rotor supports is reliable, and the housing protection is arranged again, also can expand the use field of external rotor electric machine.
Description of drawings:
Below in conjunction with concrete legend the utility model is further specified:
Fig. 1 liquid-cooled external rotor electric machine one generalized section
Fig. 2 liquid-cooled external rotor electric machine two generalized sections
Fig. 3 rotor end-face sketch map
Wherein
1-rotor 10-armature spindle 11-pump ditch
The 2-stator 20-stator axis 21-inner chamber that dispels the heat
3-housing 31-end cap 32-runner
33-interface 4-bearing 5-sealing ring
The 51-sealing ring
Embodiment:
With reference to Fig. 1, this instance is the liquid-cooled external rotor electric machine, comprises rotor 1, stator 2, housing 3 and end cap 31, and 31 of rotor 1 and stator 2 and rotor 1 and end caps are provided with the bearing 4 of location; 31 of rotor 1 and end caps, rotor 1 and 2 of stators also are provided with sealing ring 5; The junction surface that 3 of stator 2 and housings, housing 3 and end cap are 31 is equipped with sealing ring 51; Be respectively equipped with the runner 32 of turnover cooling fluid on said housing 3 bottoms and the end cap 31, and on housing and end cap, be provided with interface 33, so that form circulation with heat-dissipating container; The gap that described runner 32 and rotor 1 and 3 of housings, rotor 1 and end cap are 31 communicates, and reaches the effect on cooled rotor 1 surface.In this instance, armature spindle 10 is hollow-core construction with stator axis 20, and the heat that stator produces can be linked up with extraneous through the stator axis hollow part, forms heat dissipation channel.
With reference to Fig. 2; In this instance, armature spindle 10 is a solid shafting, and stator axis 20 has a heat radiation inner chamber 21; Said heat radiation inner chamber 21 two ends are communicated with the gap of 31 of rotor 1 and housing 3, rotor 1 and end caps respectively; Form the circulation cooling structure, reach the effect of cooled rotor 1, stator 2, can suppress the temperature rise of motor internal greatly.
With reference to Fig. 3, and combine Fig. 1 and Fig. 2, said rotor 1 offers radial pump ditch 11 on the one end at least, and this pump ditch 11 can produce centrifugal negative pressure when rotated, so that from the lower cooling fluid of runner 32 suction temperature of this side.
Claims (4)
1. a liquid-cooled external rotor electric machine comprises rotor, stator, housing and end cap; Between rotor and stator and rotor and end cap, be provided with the bearing of location; Armature spindle and stator axis are the concentric structure, it is characterized in that also being provided with sealing ring between rotor and end cap and rotor and stator, and the junction surface between stator and housing, between housing and end cap is equipped with sealing ring; Be respectively equipped with the runner of turnover cooling fluid on said housing bottom and the end cap, the gap between described runner and rotor and housing, between rotor and end cap communicates.
2. liquid-cooled external rotor electric machine according to claim 1 is characterized in that rotor offers radial pump ditch on the one end at least.
3. liquid-cooled external rotor electric machine according to claim 1 and 2 is characterized in that armature spindle is a solid shafting, and stator axis has a heat radiation inner chamber, and its heat radiation inner chamber two ends are communicated with the gap between rotor and housing, rotor and end cap respectively, form the circulation cooling structure.
4. liquid-cooled external rotor electric machine according to claim 1 and 2 is characterized in that armature spindle and stator axis are hollow-core construction, and both connect each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202750714U CN202172317U (en) | 2011-07-29 | 2011-07-29 | Liquid-cooled external rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202750714U CN202172317U (en) | 2011-07-29 | 2011-07-29 | Liquid-cooled external rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202172317U true CN202172317U (en) | 2012-03-21 |
Family
ID=45830503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202750714U Expired - Fee Related CN202172317U (en) | 2011-07-29 | 2011-07-29 | Liquid-cooled external rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202172317U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855890A (en) * | 2012-12-03 | 2014-06-11 | 中核核电运行管理有限公司 | Outer rotor type driving motor of main coolant pump |
| CN105245070A (en) * | 2015-10-27 | 2016-01-13 | 罗彪 | Large power disk generator |
| CN106257803A (en) * | 2015-06-16 | 2016-12-28 | 奥迪股份公司 | Motor |
| WO2018076896A1 (en) * | 2016-10-26 | 2018-05-03 | 东莞亿动智能科技有限公司 | Ship propeller |
-
2011
- 2011-07-29 CN CN2011202750714U patent/CN202172317U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855890A (en) * | 2012-12-03 | 2014-06-11 | 中核核电运行管理有限公司 | Outer rotor type driving motor of main coolant pump |
| CN106257803A (en) * | 2015-06-16 | 2016-12-28 | 奥迪股份公司 | Motor |
| CN106257803B (en) * | 2015-06-16 | 2019-03-12 | 奥迪股份公司 | Motor |
| CN105245070A (en) * | 2015-10-27 | 2016-01-13 | 罗彪 | Large power disk generator |
| WO2018076896A1 (en) * | 2016-10-26 | 2018-05-03 | 东莞亿动智能科技有限公司 | Ship propeller |
| US10760470B2 (en) | 2016-10-26 | 2020-09-01 | Guangdong Epropulsion Technology Limited | Ship propulsion apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120321 Termination date: 20140729 |
|
| EXPY | Termination of patent right or utility model |