CN101860122A - Heat-dissipating structure of motor stator - Google Patents
Heat-dissipating structure of motor stator Download PDFInfo
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- CN101860122A CN101860122A CN 201010178426 CN201010178426A CN101860122A CN 101860122 A CN101860122 A CN 101860122A CN 201010178426 CN201010178426 CN 201010178426 CN 201010178426 A CN201010178426 A CN 201010178426A CN 101860122 A CN101860122 A CN 101860122A
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Abstract
The invention relates to a heat-dissipating structure of a motor stator, comprising a cooling sleeve body, wherein the cooling sleeve body is coated on a stator assembly of the motor in a sealing way, thereby a cooling channel is formed between the cooling sleeve body and an excircle surface of the stator assembly; the cooling sleeve body is provided with a cooling liquid inlet and a cooling liquid outlet; the cooling liquid inlet is communicated with the cooling liquid outlet through the cooling channel, preferably, a plurality of baffles are arranged in the cooling channel, extend out of the cooling sleeve body, support against and contacts the excircle surface of the stator assembly and thereby guide the flow direction of the cooling liquid; the cooling sleeve body comprises a front ring sleeve layer and a rear ring sleeve layer which are connected in a sealing way and respectively connected with the stator assembly in a sealing way; the heat-dissipating structure of the motor stator also comprises a cooling liquid source; and a cooling liquid source pipeline is communicated with the cooling liquid inlet. The invention has ingenious design and simple and novel structure, can ensure that the heat of the motor is quickly and effectively dissipated, thereby improving the motor performance and finally enhancing the efficiency and the service life of the motor; in addition, the invention is suitable for being popularized and applied in a large scale.
Description
Technical field
The present invention relates to the automobile construction technical field, particularly the motor cooling structure technical field of electric automobile specifically is a kind of heat-dissipating structure of motor stator.
Background technology
Hybrid vehicle and pure electric automobile major part all are to have adopted three-phase permanent magnet synchronous motor at present, therefore motor is as the heart of electric automobile, its operating mode is subjected to the influence of composite factors such as road conditions, vehicle load, it is more complicated to make electric motor of automobile compare the operating mode of other motor, can produce a large amount of heats during its work.
The loss heat that can produce in the machine operation process comprises: 1. the iron loss of stator module, copper loss are converted into thermal losses; 2. parts mechanical loss such as bearing is converted into thermal losses.
If obstructed overheated administrative skill goes out the loss hot type, can cause motor stator component, rotor assembly temperature too high, thereby rotor magnetic steel demagnetization, stator line bag burn, influence the normal operation of motor.Therefore, it is particularly important that the motor heat administrative skill shows in electric automobile, therefore the effective cooling system of a cover must be set on motor improve the motor radiating performance.
Therefore, need urgently provide a kind of heat-dissipating structure of motor stator, it can effectively make motor radiating fast, thereby improves motor performance, finally improves electric efficiency and life-span.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art, a kind of heat-dissipating structure of motor stator is provided, this heat-dissipating structure of motor stator design is ingenious, novelty simple in structure, can effectively make motor radiating fast, thereby improve motor performance, finally improve electric efficiency and life-span, be suitable for large-scale promotion application.
To achieve these goals, heat-dissipating structure of motor stator of the present invention has adopted following technical scheme:
This heat-dissipating structure of motor stator, be characterized in, comprise the cooling body, thereby described cooling body is sealed and coated on the stator module of motor and forms the cooling duct between the periphery of described cooling body and described stator module, described cooling body is provided with cooling liquid inlet and cooling liquid outlet, and described cooling liquid inlet is communicated with described cooling liquid outlet by described cooling duct.
Preferably, be provided with some baffle plates in the described cooling duct, thereby described baffle plate extends and against the flow direction of the periphery guiding cooling fluid of the described stator module of contact from described cooling body.
Preferably, described cooling body comprises preceding snare layer and back snare layer, and described preceding snare layer and described back snare layer are tightly connected, and described preceding snare layer and described back snare layer are tightly connected with described stator module respectively.
More preferably, the inwall of described preceding snare layer is provided with some radiating ribs.
Further, described radiating ribs is the bar shaped radiating ribs.
Especially, described bar shaped radiating ribs be arranged in parallel.
More preferably, sealing ring and back sealing ring before described heat-dissipating structure of motor stator also comprises, described preceding snare layer is tightly connected by sealing ring before described and described stator module, and described back snare layer is tightly connected by described back sealing ring and described stator module.
Further, described preceding sealing ring and described back sealing ring are O type circle.
More preferably, described heat-dissipating structure of motor stator also comprises middle sealing ring, and described preceding snare layer is by sealing ring in described and described back snare layer seal welding.
Further, described middle sealing ring is an O type circle.
Preferably, be coated with heat conduction sealing antirust coat on the periphery of described stator module.
Preferably, described heat-dissipating structure of motor stator also comprises liquid coolant sources, the described cooling liquid inlet of described liquid coolant sources pipeline connection.
Beneficial effect of the present invention is specific as follows:
1, the present invention is by forming the cooling duct between the periphery of described cooling body and described stator module, thereby the periphery of stator module is directly contacted with cooling liquid, utilize iron core directly with the heat transferred cooling liquid, design ingenious, novelty simple in structure can effectively make motor radiating fast, thereby improve motor performance, the final raising electric efficiency and life-span is suitable for large-scale promotion application.
2, the inwall of described preceding snare layer of the present invention is provided with some radiating ribs, increase the contact area of cooling liquid, the heat that motor is produced is fully taken away, design ingenious, novelty simple in structure can effectively make motor radiating fast, thereby improve motor performance, the final raising electric efficiency and life-span is suitable for large-scale promotion application.
3, described preceding snare layer of the present invention is tightly connected by sealing ring before described and described stator module, described back snare layer is tightly connected by described back sealing ring and described stator module, the snare layer is by sealing ring in described and described back snare layer seal welding before described, good seal performance, effectively avoid cooling liquid to enter motor internal, influence motor performance, design ingenious, novelty simple in structure is suitable for large-scale promotion application.
Description of drawings
Fig. 1 is the sectional perspective structural representation that the motor of a specific embodiment of the present invention is installed.
Fig. 2 is the perspective view of preceding snare layer shown in Figure 1.
Fig. 3 is the perspective view of back snare layer shown in Figure 1.
Fig. 4 is that schematic diagram is launched in the cooling duct that forms among Fig. 1.
Fig. 5 is the cross-sectional schematic of Fig. 1.
Embodiment
In order more to be expressly understood technology contents of the present invention, describe in detail especially exemplified by following examples.Wherein identical parts adopt identical Reference numeral.
See also shown in Fig. 1～5, heat-dissipating structure of motor stator of the present invention comprises cooling body 6, thereby described cooling body 6 is sealed and coated on the stator module 63 of motor and forms the cooling duct between the periphery (periphery of stator core just) of described cooling body 6 and described stator module 63, described cooling body 6 is provided with cooling liquid inlet 74 and cooling liquid outlet 75, and described cooling liquid inlet 74 is communicated with described cooling liquid outlet 75 by described cooling duct.
Preferably, described cooling body 6 comprises preceding snare layer 65 and back snare layer 61, and described preceding snare layer 65 and described back snare layer 61 are tightly connected, and described preceding snare layer 65 and described back snare layer 61 are tightly connected with described stator module 63 respectively.More preferably, the inwall of described preceding snare layer 65 is provided with some radiating ribs 69.Further, described radiating ribs 69 is bar shaped radiating ribs.See also Fig. 2 and shown in Figure 5, in specific embodiments of the invention, described bar shaped radiating ribs be arranged in parallel.The bar shaped radiating ribs is used to increase the contact area of cooling liquid, and the heat that motor is produced is fully taken away.
Preferably, be provided with some baffle plates 70 in the described cooling duct, thereby described baffle plate 70 extends and against the flow direction of the periphery guiding cooling fluid of the described stator module 63 of contact from described cooling body 6.See also Fig. 2 and shown in Figure 5, in specific embodiments of the invention, snare layer 65 and back snare layer 61 extend baffle plate 70 in the past respectively, and it is interlaced, also be provided with a full muscle 71 in the described cooling duct as the dividing plate between cooling liquid inlet 74 and the cooling liquid outlet 75, guarantee the directivity (arrow indication among Fig. 5) of cooling fluid stream, setting in conjunction with baffle plate 70, cooling fluid stream wave complications are advanced, make cooling fluid flow to end the periphery of described stator module 63 of flowing through possibly, thereby make the cooling effect maximization.
More preferably, sealing ring 67 and back sealing ring 62 before described heat-dissipating structure of motor stator also comprises, snare layer 65 is tightly connected by sealing ring before described 67 and described stator module 63 before described, and described back snare layer 61 is tightly connected with described stator module 63 by described back sealing ring 62.See also shown in Figure 4, in specific embodiments of the invention, described before sealing ring 67 and described back sealing ring 62 be O type circle.Spacing muscle part 72 at preceding snare layer 65 is processed with groove, sealing O type circle before being used to install; Spacing muscle part 73 at back snare layer 61 is processed with groove, is used to install back sealing O type circle, plays after being seated and avoids cooling liquid to ooze nearly motor internal from the bottom.And by the spacing muscle part 72 of preceding snare layer 65 and the spacing muscle part 73 of back snare layer 61, thereby push down upper and lower surface unshakable in one's determination.
More preferably, described heat-dissipating structure of motor stator also comprises middle sealing ring 64, and described preceding snare layer 65 is by sealing ring in described 64 and described back snare layer 61 seal welding.See also shown in Figure 4, in specific embodiments of the invention, described in sealing ring 64 be O type circle, Reference numeral 68 is for welding joint filling.
Preferably, be coated with heat conduction sealing antirust coat 66 on the periphery of described stator module 63.See also shown in Figure 4, in specific embodiments of the invention, the outer round surface unshakable in one's determination of the stator module 63 of motor brushes one deck sealing heat-conducting glue equably and forms heat conduction sealing antirust coat 66, after on this gum brush, be combined as a whole with iron core Deng dry back, and glue has insulation H level, anticorrosive, high temperature resistant (200 ℃) performance, strengthens the sealing between silicon steel sheet and the silicon steel sheet, and prevents the silicon steel sheet liquid corrosion that is cooled.
Preferably, described heat-dissipating structure of motor stator also comprises the liquid coolant sources (not shown), the described cooling liquid inlet 74 of described liquid coolant sources pipeline connection.Thereby for cooling provides cooling fluid.
Structure shown in Figure 1 adopts tool locating, and snare layer 65 and back snare layer 61 before stator module 63 operation break-down hot jackets are advanced are finished after welding after qualified through gas-tight test again.Specific as follows:
The continual mileage of pure electric automobile is closely related with the efficient of the quality of automobile itself, power conversion: the cooling mechanism of this kind motor has reduced motor quality, has improved the delivery efficiency of motor.Radiator structure improves by heat transfer efficiency.Compact conformation is is conveniently installed and used.Simple for structure, help Mould Machining.Good seal performance, degree of protection reaches IP55.
The present invention directly uses the outer round surface of stator core of motor as the inwall of cooling duct, cooling liquid flows in the track of cooling duct, wherein the formation of cooling duct (cavity between the periphery of cooling body 6 and stator module 63) is the stator core outer round surface by stator module 63, preceding snare layer 65 and back snare layer 61 form, the stator core outer round surface of described stator module 63 is through the antirust processing of sealing, the outer round surface of stator core is directly contacted with cooling fluid, utilize iron core directly with the heat transferred cooling liquid, reach better cooling effect.Thereby increase the drive motors heat dispersion, finally improve the complete machine performance.
To sum up, heat-dissipating structure of motor stator design of the present invention is ingenious, and novelty simple in structure can effectively make motor radiating fast, thereby improve motor performance, finally improves electric efficiency and life-span, is suitable for large-scale promotion application.
In this specification, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (10)
1. heat-dissipating structure of motor stator, it is characterized in that, described heat-dissipating structure of motor stator comprises the cooling body, thereby described cooling body is sealed and coated on the stator module of motor and forms the cooling duct between the periphery of described cooling body and described stator module, described cooling body is provided with cooling liquid inlet and cooling liquid outlet, and described cooling liquid inlet is communicated with described cooling liquid outlet by described cooling duct.
2. heat-dissipating structure of motor stator according to claim 1, it is characterized in that, be provided with some baffle plates in the described cooling duct, thereby described baffle plate extends and against the flow direction of the periphery guiding cooling fluid of the described stator module of contact from described cooling body.
3. heat-dissipating structure of motor stator according to claim 1, it is characterized in that, described cooling body comprises preceding snare layer and back snare layer, and described preceding snare layer and described back snare layer are tightly connected, and described preceding snare layer and described back snare layer are tightly connected with described stator module respectively.
4. heat-dissipating structure of motor stator according to claim 3 is characterized in that, the inwall of described preceding snare layer is provided with some radiating ribs.
5. heat-dissipating structure of motor stator according to claim 4 is characterized in that, described radiating ribs is the bar shaped radiating ribs.
6. heat-dissipating structure of motor stator according to claim 5 is characterized in that, described bar shaped radiating ribs be arranged in parallel.
7. heat-dissipating structure of motor stator according to claim 3, it is characterized in that, sealing ring and back sealing ring before described heat-dissipating structure of motor stator also comprises, the snare layer is tightly connected by sealing ring before described and described stator module before described, and described back snare layer is tightly connected by described back sealing ring and described stator module.
8. heat-dissipating structure of motor stator according to claim 3 is characterized in that described heat-dissipating structure of motor stator also comprises middle sealing ring, and described preceding snare layer is by sealing ring in described and described back snare layer seal welding.
9. heat-dissipating structure of motor stator according to claim 1 is characterized in that, is coated with heat conduction sealing antirust coat on the periphery of described stator module.
10. heat-dissipating structure of motor stator according to claim 1 is characterized in that described heat-dissipating structure of motor stator also comprises liquid coolant sources, the described cooling liquid inlet of described liquid coolant sources pipeline connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010178426 CN101860122A (en) | 2010-05-19 | 2010-05-19 | Heat-dissipating structure of motor stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010178426 CN101860122A (en) | 2010-05-19 | 2010-05-19 | Heat-dissipating structure of motor stator |
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| Publication Number | Publication Date |
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| CN101860122A true CN101860122A (en) | 2010-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010178426 Pending CN101860122A (en) | 2010-05-19 | 2010-05-19 | Heat-dissipating structure of motor stator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001398A (en) * | 2012-11-09 | 2013-03-27 | 烟台鼎立新能源汽车动力系统有限公司 | Cooling sleeve of liquid cooling electric motor |
| CN104518614A (en) * | 2015-01-16 | 2015-04-15 | 上海中科深江电动车辆有限公司 | Liquid-cooling device of drive motor and drive motor |
| CN103715831B (en) * | 2014-01-13 | 2016-08-17 | 苏州和鑫电气股份有限公司 | Coolant jacket and manufacture method thereof |
| CN107612225A (en) * | 2017-08-27 | 2018-01-19 | 浙江同星制冷有限公司 | A kind of structure of radial hub motor stator oil immersion cooling |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020067086A1 (en) * | 2000-11-21 | 2002-06-06 | Nissan Motor Co.,Ltd. | Rotating electrical machine |
| CN2636490Y (en) * | 2003-07-04 | 2004-08-25 | 深圳市贝来电气有限公司 | Water cooled type electric machine |
| CN2645331Y (en) * | 2003-08-02 | 2004-09-29 | 无锡机床股份有限公司 | Stator cooling inner water-repellent arrangement for electric motor shaft |
| CN2754261Y (en) * | 2004-12-27 | 2006-01-25 | 上海连成（集团）有限公司 | Motor cooling device |
-
2010
- 2010-05-19 CN CN 201010178426 patent/CN101860122A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020067086A1 (en) * | 2000-11-21 | 2002-06-06 | Nissan Motor Co.,Ltd. | Rotating electrical machine |
| CN2636490Y (en) * | 2003-07-04 | 2004-08-25 | 深圳市贝来电气有限公司 | Water cooled type electric machine |
| CN2645331Y (en) * | 2003-08-02 | 2004-09-29 | 无锡机床股份有限公司 | Stator cooling inner water-repellent arrangement for electric motor shaft |
| CN2754261Y (en) * | 2004-12-27 | 2006-01-25 | 上海连成（集团）有限公司 | Motor cooling device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001398A (en) * | 2012-11-09 | 2013-03-27 | 烟台鼎立新能源汽车动力系统有限公司 | Cooling sleeve of liquid cooling electric motor |
| CN103715831B (en) * | 2014-01-13 | 2016-08-17 | 苏州和鑫电气股份有限公司 | Coolant jacket and manufacture method thereof |
| CN104518614A (en) * | 2015-01-16 | 2015-04-15 | 上海中科深江电动车辆有限公司 | Liquid-cooling device of drive motor and drive motor |
| CN104518614B (en) * | 2015-01-16 | 2017-10-27 | 上海中科深江电动车辆有限公司 | The cold cooling device of motor liquid and motor |
| CN107612225A (en) * | 2017-08-27 | 2018-01-19 | 浙江同星制冷有限公司 | A kind of structure of radial hub motor stator oil immersion cooling |
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Application publication date: 20101013 |