CN104242537A - Aluminum alloy motor shell and manufacturing method thereof - Google Patents
Aluminum alloy motor shell and manufacturing method thereof Download PDFInfo
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- CN104242537A CN104242537A CN201410488467.5A CN201410488467A CN104242537A CN 104242537 A CN104242537 A CN 104242537A CN 201410488467 A CN201410488467 A CN 201410488467A CN 104242537 A CN104242537 A CN 104242537A
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- tubular barrel
- aluminium alloy
- engine housing
- electric engine
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Abstract
The invention relates to a motor shell, in particular to an aluminum alloy motor shell and a manufacturing method of the aluminum alloy motor shell. The aluminum alloy motor shell is particularly suitable for a liquid cold circulation of a new energy automobile and is characterized in that the shell structurally comprises a tubular barrel and an annular seal cover, the tubular barrel is made of an aluminum alloy in an extrusion forming mode, cooling liquid circulating channels are formed in the tubular barrel, and the annular seal cover covers the end of the tubular barrel in a sealed mode; a cooling liquid inlet and a cooling liquid outlet are formed in the outer wall of the tubular barrel with the cooling liquid circulating channels. The tubular barrel of the motor shell is axially divided into a plurality of tile-shaped split single parts which are respectively formed in an extrusion mode, and the tile-shaped split single parts formed in the extrusion mode are welded to form the tubular barrel. The aluminum alloy motor shell is simple in structure and process and high in safety, production efficiency and cooling performance, and high-power motors can be manufactured.
Description
Technical field
A kind of aluminium alloy electric engine housing and manufacture method thereof, relate to a kind of electric machine casing, be particularly useful for the cold liquid circulation aluminium alloy electric engine housing of new-energy automobile.
Background technology
In new-energy automobile, electric motor of automobile is as the heart of new-energy automobile, and operationally the base of motor and motor ambient air are all poors conductor of heat usually, and therefore heat transfer mainly occurs in motor internal.Thermal source in motor is winding loss and core loss mainly, and the heat that winding loss produces is delivered to iron core from winding through insulation by means of conduction of heat, is transmitted to motor surface together with the heat that iron core produces.If electric machine casing does not provide cooling structure to be discharged by heat, motor temperature can be caused too high, affect the normal operation of motor.
Cold liquid circulation electric machine casing arises at the historic moment, the coolant of current cold liquid circulation electric machine casing is water, i.e. Water-cooling circulating heat radiating motor shell, some adopts aluminium alloy casting, but material density is poor, easily causes the casting flaw such as pore, sand holes, surface casting roughness is poor, affect the corrosion resistance of casing, processing capacity also can increase simultaneously, is difficult to the requirement meeting liquid-circulating pressure testing >=1Mpa; Some adopts steel material to manufacture casing, adopts steel plate dual-layer welding manufacture technics, and processing cost is higher, manufacture efficiency is low, corrosion-resistant, and the conductive coefficient of steel is low, and casing weight is large, is not suitable for little, the lightweight development trend of volume that automobile needs.New forms of energy bus automobile particularly for more than power of motor 120KW does not have corresponding cold liquid circulation electric machine casing.
Summary of the invention
Object of the present invention is exactly the deficiency existed for above-mentioned prior art, and provide a kind of structural manufacturing process simple, fail safe is good, can manufacture powerful motor, production efficiency is high, the aluminium alloy electric engine housing that cooling performance is good and manufacture method thereof.
The object of the invention is to be achieved through the following technical solutions.
A kind of aluminium alloy electric engine housing, is characterized in that the structure of this housing comprises and adopts aluminium alloy extruded shaping, that inside is provided with coolant circulation passage tubular barrel, be covered in the annular sealing cover of tubular barrel termination; The tubular barrel outer wall of coolant circulation passage has cooling liquid inlet and outlet.
A kind of aluminium alloy electric engine housing of the present invention, is characterized in that the tubular barrel of described electric machine casing is divided into some pieces of tile split single-pieces vertically, respectively by extrusion modling; And then the tile split single-piece of extrusion modling is welded to form tubular barrel.
A kind of aluminium alloy electric engine housing of the present invention, is characterized in that, in the weld outer end of adjacent two tile split single-pieces, being provided with the notch for welding.
A kind of aluminium alloy electric engine housing of the present invention, it is characterized in that the conjunction plane of the welding adjacent two tile split single-pieces, one of them split tile single-piece is provided with strip positioning boss vertically, between two parties, and another tile split single-piece is provided with the bar shaped detent matched with strip positioning boss vertically, between two parties.
A kind of aluminium alloy electric engine housing of the present invention, it is characterized in that its enclosure interior is provided with coolant circulation passage is passage along tubular barrel axis direction, two adjacent passages communicate at tubular barrel end, secondary two adjacent passages communicate at another end of tubular barrel, form circulation canal.
A kind of aluminium alloy electric engine housing of the present invention, is characterized in that being provided with boss on the tubular barrel outer wall having cooling liquid inlet and exit, and this boss has with cooling liquid inlet and exports the through hole of being on good terms.
A kind of aluminium alloy electric engine housing of the present invention, is characterized in that being provided with fin in tubular barrel coolant circulation passage.
A kind of aluminium alloy electric engine housing of the present invention, is characterized in that tubular barrel is provided with fin.
The manufacture method of a kind of aluminium alloy electric engine housing of the present invention, it is characterized in that its manufacture process first adopts extrusion process to prepare described aluminium alloy tile split single-piece, split single-piece is assembled into tubular barrel, split single-piece is carried out splicing welding by welding positioning and guiding tongue and welding positioning and guiding groove and is formed electric machine casing, welding back cabinet two ends Working liquids guiding gutter respectively, again annular sealing cover is installed, end face welded seal.
A kind of aluminium alloy electric engine housing of the present invention, the outline of split extruding welding aluminum alloy cold liquid circulation electric machine casing is circular, also can need into polygonal other shapes such as grade according to the design of motor.
The beneficial effect of a kind of aluminium alloy electric engine housing of the present invention is:
(1) structural design is simple, and manufacturing process is easy, is conducive to large-scale production.
(2) electric machine casing adopts aluminium alloy extruded shaping, avoids the casting flaws such as the pore of aluminium alloy casting, sand holes, good sealing effect; Avoid the corrosion-resistant that steel material manufactures casing, conductive coefficient is low, the defect that weight is large, good cooling results.
(3) electric machine casing adopts snakelike chute, avoids the inhomogeneous cooling of spirality chute to electric machine casing even, can not produce temperature gradient, good cooling results at motor two ends.
(4) electric machine casing adopts snakelike chute, very easily cooling liquid inlet and outlet connectors can be designed into same one end of motor, facilitate motor to use.
(5) electric machine casing adopts snakelike chute, and cold liquid circulation existing free convection in chute has turbulent flow again, good cooling results.
(6) electric machine casing decile is squeezed into several lobe split assembly, and extrusion equipment tonnage is little, and mould is simple, and technical maturity, can produce the casing of casing more than internal diameter 490mm, solve the difficult problem that internal diameter 490mm cannot extrude with upper casing.
(7) some chutes are had in the middle of split assembly, chute area is large, accounts for 70% of electric machine casing face area, has fin in chute, be conducive to liquid cooling circulation heat radiating, housing design has fin simultaneously, in the basic unit ensureing case strength, and good heat dissipation effect, cooling liquid inlet and outlet connectors fluid temperature difference is less than 5 DEG C, good cooling results, effectively avoids motor temperature too high, affects the normal operation of motor.
(8) have positioning and guiding tongue and positioning and guiding groove location between split single-piece, the electric machine casing circularity that splicing welding is formed is high, and welding aft-loaded airfoil is simple.
(9) electric machine casing profile can be designed to circle and polygon as required, applied widely.
(10) electric machine casing end face welded seal, electric machine casing cooling fluid, in housing complete cycle, is not participated in end cap circulation, is avoided because of motor oscillating, cause the problem that end cap circulating cooling liquid leaks.
(11) electric machine casing adopts split extruding welding manner, owing to avoiding the defect such as blow hole, sandstone, weld bond intensity is not less than 70% of aluminium alloy parent intensity simultaneously, on the basis ensureing case strength, casing inner wall can at 7mm, meet liquid-circulating pressure testing >=1Mpa, good cooling results, lightweight.
(12) electric machine casing adopts welding manner, and aluminum alloy corrosion resistant is good, and cooling fluid does not contact other encapsulants, and cooling liquid can adopt water, oil, anti-icing fluid etc., and the scope of application is wide.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of aluminium alloy electric engine housing of the present invention;
Fig. 2 is the cross-sectional view of Fig. 1;
Fig. 3 is that the A-A of Fig. 2 is to cutaway view;
Fig. 4 is the structural representation of split single-piece;
Fig. 5 is the structural representation of the coolant circulation passage of tubular barrel.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, further illustrate the specific embodiment of the present invention.
A kind of aluminium alloy electric engine housing, the structure of this housing comprises and adopts aluminium alloy extruded shaping, that inside is provided with coolant circulation passage 1 tubular barrel 2, is covered in the annular sealing cover 3 of tubular barrel termination; The tubular barrel outer wall of coolant circulation passage has cooling liquid inlet and outlet.
A kind of aluminium alloy electric engine housing of the present invention, the tubular barrel of described electric machine casing is divided into some pieces of tile split single-pieces 4, vertically respectively by extrusion modling; And then the tile split single-piece of extrusion modling is welded to form tubular barrel.
A kind of aluminium alloy electric engine housing of the present invention, in the weld outer end of adjacent two tile split single-pieces, is provided with the notch 5 for welding.
A kind of aluminium alloy electric engine housing of the present invention, at the conjunction plane of the welding of adjacent two tile split single-pieces, one of them split tile single-piece is provided with strip positioning boss 6 vertically, between two parties, and another tile split single-piece is provided with the bar shaped detent 7 matched with strip positioning boss vertically, between two parties.
A kind of aluminium alloy electric engine housing of the present invention, it is passage along tubular barrel axis direction that its enclosure interior is provided with coolant circulation passage, two adjacent passages communicate at tubular barrel end, and secondary two adjacent passages communicate at another end of tubular barrel, form circulation canal.
A kind of aluminium alloy electric engine housing of the present invention, the tubular barrel outer wall having cooling liquid inlet and exit is provided with boss 8, and this boss has with cooling liquid inlet and exports the through hole 9,10 communicated.
A kind of aluminium alloy electric engine housing of the present invention, is provided with fin 11 in tubular barrel coolant circulation passage.
A kind of aluminium alloy electric engine housing of the present invention, tubular barrel is provided with fin.
The manufacture method of a kind of aluminium alloy electric engine housing of the present invention, its manufacture process first adopts extrusion process to prepare described aluminium alloy tile split single-piece, split single-piece is assembled into tubular barrel, split single-piece is carried out splicing welding by welding positioning and guiding tongue and welding positioning and guiding groove and is formed electric machine casing, welding back cabinet two ends Working liquids guiding gutter respectively, again annular sealing cover is installed, end face welded seal.
A kind of split extruding welding aluminum alloy cold liquid circulation electric machine casing as shown in the figure, is located through positioning and guiding tongue and positioning and guiding groove by four aluminium alloy extruded split single-pieces, difference welding casing external diameter soldering opening and internal diameter soldering opening behind location.Each aluminium alloy extruded split assembly all has some chutes, some fin are had in chute, there is installation end bonnet bolt hole at two ends, fin is had to strengthen between chute, welding back cabinet two ends fin is separated by one and is processed guiding gutter respectively, welding end cap, in casing one end, two adjacent chute outsides weld cooling liquid import and liquid outlet respectively, and casing internal forms snakelike chute.
The above; be only non-limiting execution mode of the present invention, for the person of ordinary skill of the art, do not departing from the invention design with under the prerequisite not making inventive improvements; some distortion and improvement can also be made, all belong to protection scope of the present invention.
Claims (8)
1. an aluminium alloy electric engine housing, is characterized in that the structure of this housing comprises and adopts aluminium alloy extruded shaping, that inside is provided with coolant circulation passage tubular barrel, be covered in the annular sealing cover of tubular barrel termination; The tubular barrel outer wall of coolant circulation passage has cooling liquid inlet and outlet.
2. a kind of aluminium alloy electric engine housing according to claim 1, is characterized in that the tubular barrel of described electric machine casing is divided into some pieces of tile split single-pieces vertically, respectively by extrusion modling; And then the tile split single-piece of extrusion modling is welded to form tubular barrel.
3. a kind of aluminium alloy electric engine housing according to claim 1, is characterized in that, in the weld outer end of adjacent two tile split single-pieces, being provided with the notch for welding.
4. a kind of aluminium alloy electric engine housing according to claim 1, it is characterized in that the conjunction plane of the welding adjacent two tile split single-pieces, one of them split tile single-piece is provided with strip positioning boss vertically, between two parties, and another tile split single-piece is provided with the bar shaped detent matched with strip positioning boss vertically, between two parties.
5. a kind of aluminium alloy electric engine housing according to claim 1, it is characterized in that its enclosure interior is provided with coolant circulation passage is passage along tubular barrel axis direction, two adjacent passages communicate at tubular barrel end, secondary two adjacent passages communicate at another end of tubular barrel, form circulation canal.
6. a kind of aluminium alloy electric engine housing according to claim 1, is characterized in that being provided with boss on the tubular barrel outer wall having cooling liquid inlet and exit, and this boss has with cooling liquid inlet and exports the through hole communicated.
7. a kind of aluminium alloy electric engine housing according to claim 1, is characterized in that being provided with fin in tubular barrel coolant circulation passage.
8. the manufacture method of a kind of aluminium alloy electric engine housing according to claim 1, it is characterized in that its manufacture process first adopts extrusion process to prepare described aluminium alloy tile split single-piece, split single-piece is assembled into tubular barrel, split single-piece is carried out splicing welding by welding positioning and guiding tongue and welding positioning and guiding groove and is formed electric machine casing, welding back cabinet two ends Working liquids guiding gutter respectively, again annular sealing cover is installed, end face welded seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410488467.5A CN104242537A (en) | 2014-09-23 | 2014-09-23 | Aluminum alloy motor shell and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410488467.5A CN104242537A (en) | 2014-09-23 | 2014-09-23 | Aluminum alloy motor shell and manufacturing method thereof |
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| CN104242537A true CN104242537A (en) | 2014-12-24 |
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| CN201410488467.5A Pending CN104242537A (en) | 2014-09-23 | 2014-09-23 | Aluminum alloy motor shell and manufacturing method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105490434A (en) * | 2015-10-13 | 2016-04-13 | 常州市武进顶峰铜业有限公司 | Cast-aluminum generator casing |
| CN109274231A (en) * | 2017-10-13 | 2019-01-25 | 朱卫 | A kind of processing technology with titanium production motor case |
| CN109286269A (en) * | 2017-07-20 | 2019-01-29 | 东风汽车电气有限公司 | A kind of water-cooled motor shell |
| CN110707864A (en) * | 2019-10-30 | 2020-01-17 | 中车株洲电机有限公司 | New energy automobile motor frame |
| CN110784070A (en) * | 2018-07-31 | 2020-02-11 | 大众汽车有限公司 | Coolant conducting element, cooling system and electric machine |
| CN112671147A (en) * | 2020-12-16 | 2021-04-16 | 精基科技有限公司 | Cooling device for explosion-proof three-phase permanent magnet synchronous motor |
| CN114802561A (en) * | 2022-06-27 | 2022-07-29 | 赛格威科技有限公司 | Electric motorcycle and heat dissipation method thereof |
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| JPH06121490A (en) * | 1992-10-02 | 1994-04-28 | Matsushita Electric Ind Co Ltd | Water-cooled motor |
| CN201821197U (en) * | 2010-10-12 | 2011-05-04 | 天津市聚海铝业有限公司 | Cold liquid circulation heat radiation housing for motor |
| CN201947101U (en) * | 2011-01-07 | 2011-08-24 | 天津市隆诚泰铝业有限公司 | Water cooling motor shell made of extruded aluminum alloy |
| CN202134994U (en) * | 2011-07-14 | 2012-02-01 | 凡哲雄 | Split extruded splicing type water cooling motor shell |
| CN202160081U (en) * | 2011-06-08 | 2012-03-07 | 福建福安闽东亚南电机有限公司 | Water cooling asynchronous motor for hybrid vehicle |
| CN102684359A (en) * | 2012-05-18 | 2012-09-19 | 福建亚南电机有限公司 | Water cooling case for driving motor of hybrid power automobile |
| CN203491817U (en) * | 2013-10-11 | 2014-03-19 | 成都中远信电子科技有限公司 | Liquid-cooled motor |
| CN203747551U (en) * | 2014-02-26 | 2014-07-30 | 安徽安凯汽车股份有限公司 | Liquid-cooled shell of electric bus's drive motor |
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2014
- 2014-09-23 CN CN201410488467.5A patent/CN104242537A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH06121490A (en) * | 1992-10-02 | 1994-04-28 | Matsushita Electric Ind Co Ltd | Water-cooled motor |
| CN201821197U (en) * | 2010-10-12 | 2011-05-04 | 天津市聚海铝业有限公司 | Cold liquid circulation heat radiation housing for motor |
| CN201947101U (en) * | 2011-01-07 | 2011-08-24 | 天津市隆诚泰铝业有限公司 | Water cooling motor shell made of extruded aluminum alloy |
| CN202160081U (en) * | 2011-06-08 | 2012-03-07 | 福建福安闽东亚南电机有限公司 | Water cooling asynchronous motor for hybrid vehicle |
| CN202134994U (en) * | 2011-07-14 | 2012-02-01 | 凡哲雄 | Split extruded splicing type water cooling motor shell |
| CN102684359A (en) * | 2012-05-18 | 2012-09-19 | 福建亚南电机有限公司 | Water cooling case for driving motor of hybrid power automobile |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105490434A (en) * | 2015-10-13 | 2016-04-13 | 常州市武进顶峰铜业有限公司 | Cast-aluminum generator casing |
| CN109286269A (en) * | 2017-07-20 | 2019-01-29 | 东风汽车电气有限公司 | A kind of water-cooled motor shell |
| CN109274231A (en) * | 2017-10-13 | 2019-01-25 | 朱卫 | A kind of processing technology with titanium production motor case |
| US10799934B2 (en) | 2017-10-13 | 2020-10-13 | Wei Zhu | Machining process for production of titanium motor housing |
| CN110784070A (en) * | 2018-07-31 | 2020-02-11 | 大众汽车有限公司 | Coolant conducting element, cooling system and electric machine |
| CN110707864A (en) * | 2019-10-30 | 2020-01-17 | 中车株洲电机有限公司 | New energy automobile motor frame |
| CN112671147A (en) * | 2020-12-16 | 2021-04-16 | 精基科技有限公司 | Cooling device for explosion-proof three-phase permanent magnet synchronous motor |
| CN114802561A (en) * | 2022-06-27 | 2022-07-29 | 赛格威科技有限公司 | Electric motorcycle and heat dissipation method thereof |
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Application publication date: 20141224 |