CN102290908A - Water-cooling shell, inner jacket and jaw of electric vehicle motor - Google Patents
Water-cooling shell, inner jacket and jaw of electric vehicle motor Download PDFInfo
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- CN102290908A CN102290908A CN2011102338038A CN201110233803A CN102290908A CN 102290908 A CN102290908 A CN 102290908A CN 2011102338038 A CN2011102338038 A CN 2011102338038A CN 201110233803 A CN201110233803 A CN 201110233803A CN 102290908 A CN102290908 A CN 102290908A
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- inner water
- claw
- water jacket
- water sleeve
- sleeve
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Abstract
The invention discloses a water-cooling shell of an electric vehicle motor, comprising an inner water jacket, an external water jacket and a plurality of jaws; an upper end of the inner water jacket is a ring-shaped plane, a plurality of dovetail grooves are formed along the ring-shaped plane, wide openings of the plurality of dovetail grooves are located at an external surface of the inner water jacket, and the plurality of dovetail grooves are arranged in a manner of forming a certain angle therebetween; an upper side of each jaw is provided with a screw hole for fixing the jaw on the external water jacket, and a lower side of each jaw becomes narrow and is of an inverted trapezia matched with the dovetail grooves; a lower end surface of each jaw is a plane; each dovetail groove is respectively embedded at the lower side of each jaw and fixes the jaw on the external water jacket via screws. The invention further discloses an internal water jacket and a jaw.
Description
Technical field
The present invention relates to the motor cooling system of electric automobile, especially mixed power electric car, particularly a kind of water cooled housing of motor in electric automobile and inner water sleeve, claw.
Background technology
Electric automobile will produce a large amount of heats when especially the motor of mixed power electric car is worked under the bigger and complicated operating mode of load.If the untimely discharge of heat will impact motor properties.
If motor is positioned at the front deck of automobile, because front deck ambient temperature very high (generally above 100 ℃) also can make the temperature of motor rise thereupon.Some are integrated in hybrid vehicle between engine and the gearbox with motor, and the temperature in the gearbox clutch housing is higher, and regional area may reach about 300 ℃ in some cases.
The heat of the generation of engine and gearbox can pass on the motor, causes that motor temperature further raises, and the operate as normal of motor is caused serious threat.Therefore the effective cooling system of one cover must be set on electric motor of automobile, the temperature of motor is remained in the reasonable range.
The present electric automobile especially motor of mixed power electric car is subjected to the restriction of structural condition, adopts natural ventilation system or forced ventilation mode to cool off mostly, seldom adopts the mode of water-cooled, and cooling effect is not ideal enough.
Chinese patent ZL200820034844.8 discloses the motor in electric automobile water cooled housing, as Fig. 1, Fig. 2, shown in Figure 3, the motor in electric automobile water cooled housing is by inner water sleeve 2, outer water jacket 1, water inlet pipe 9, outlet pipe 6, stator back-up ring 8 is formed, inner water sleeve 2 and outer water jacket 1 all are the intermediate hollow cirque structures, inner water sleeve 2 is socketed in hollow in the outer water jacket 1, the cavity 14 that inner water sleeve 2 and outer water jacket 1 are encircled into is the flow channel of cooling fluid, the outer surface of inner water sleeve 2 has groove 15,14 form water channel in cavity, groove 15 plays the effect of fin, increases with the contact area of cooling fluid to take away more heat.Inner water sleeve 2 is identical with the width of outer water jacket 1, and dowel hole 5 is positioned on the step surface of outer water jacket 1, and pin 11 passes through dowel hole 5 and connects inner water sleeves 2 and outer water jackets 1, is provided with sealing ring 13 between inner water sleeve 2 and the outer water jacket 1, realizes effectively sealing, prevents the cooling fluid leakage.Water inlet pipe 9 and outlet pipe 6 and outer water jacket 1 are by being threaded, and the cavity 14 that is encircled into inner water sleeve 2 and outer water jacket 1 communicates, water inlet pipe 9 is positioned at the below of outer water jacket 1 centerline direction, outlet pipe 6 is positioned at the top of outer water jacket 1 centerline direction, cooling fluid enters from the below, helps discharging the gas in the cavity.
One end of three stator cables 16 is connected with stator 7, and the other end is connected with cable joint 3 on being installed in water cooled housing.Outer water jacket 1 and stator back-up ring 8 are by being threaded, and restriction inner water sleeve 2 and stator 7 move axially.Inner water sleeve 2 inner surfaces are close to stator 7, and when machine operation, the heat of stator 7 passes to inner water sleeve 2, pass to the cooling fluid in the cavity 14 again, take away the heat of motor by circulating of cooling fluid.
One circle bolt hole 4 is arranged on the surperficial end face of outer water jacket 1, be used for installing motor, the installation site of motor is determined according to actual conditions, can with bolt engine, motor and gearbox be fixed together between engine and gearbox.
Chinese patent ZL200820034844.8 discloses the motor in electric automobile water cooled housing, be to fix a stator back-up ring 8 by water jacket outside 1 and spiral shell to limit inner water sleeve 2 and moving axially, connect inner water sleeves 2 and limit inner water sleeve 2 circumferentially mobile by be embedded in pin 11 at dowel hole 5 with outer water jacket 1, complex structure, materials are more.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of water cooled housing of motor in electric automobile, and is simple in structure, reliable, materials are less.
For solving the problems of the technologies described above, the water cooled housing of motor in electric automobile of the present invention comprises inner water sleeve, outer water jacket, also comprises a plurality of claws;
Described inner water sleeve, its upper surface are planar annular, form a plurality of dovetail grooves along described planar annular, and the wide opening of described a plurality of dovetail grooves is positioned at the outer surface of inner water sleeve, and arrangement has a certain degree between described a plurality of dovetail grooves;
Described claw, its upside is provided with screw, and described screw is used for the claw spiral shell is fixed in described outer water jacket; Its downside is narrowed down by wide, for suitable trapezoidal of described dovetail groove; Its lower surface is the plane;
In described each dovetail groove, embed a claw downside respectively, and the claw spiral shell is fixed on the described outer water jacket.
There are two angles between dovetail groove can be in described a plurality of dovetail groove more than or equal to 70 °.
The number of described claw can equal the number of the dovetail groove on the upper surface of described inner water sleeve.
The number of described claw can be greater than the number of the dovetail groove on the upper surface of described inner water sleeve, wherein a part of claw downside embeds respectively in a plurality of dovetail grooves on the upper surface of described inner water sleeve, and spiral shell is fixed on the outer water jacket, other claw downside lower surface is pressed together on the upper surface between the dovetail groove of described inner water sleeve, and spiral shell is fixed on the outer water jacket.
Preferable, the number of described claw is 8, the number of the dovetail groove on the upper surface of described inner water sleeve is 3.
For solving the problems of the technologies described above, the invention also discloses a kind of inner water sleeve, its upper surface is a planar annular, forms a plurality of dovetail grooves along described planar annular, the wide opening of described a plurality of dovetail grooves is positioned at the outer surface of inner water sleeve, and arrangement has a certain degree between described a plurality of dovetail grooves.
Teach goodly, two angles between dovetail groove are arranged in described a plurality of dovetail grooves more than or equal to 70 °.
For solving the problems of the technologies described above, the invention also discloses a kind of claw, its upside is provided with screw; Its downside is narrowed down by wide, for trapezoidal; Its lower surface is the plane.
The water cooled housing of motor in electric automobile of the present invention, form a plurality of dovetail grooves in the upper surface of inner water sleeve, utilize downside by wide be narrowed with described dovetail groove suitable fall trapezoidal claw, in the dovetail groove on the upper surface that the claw downside is embedded described inner water sleeve, the interference power snug fit of dovetail groove face on the downside two sides of claw and the upper surface of inner water sleeve because of producing, outside claw is fixed on the water jacket after, make inner water sleeve on circumferential and axial with outside water jacket firmly be fixed together.The water cooled housing of motor in electric automobile of the present invention, simple in structure, reliable, materials are less, are beneficial to suitability for industrialized production.
Description of drawings
Below in conjunction with the drawings and the specific embodiments the present invention is described in further detail.
Fig. 1 is an existing motor in electric automobile water cooled housing external structure schematic diagram;
Fig. 2 is the internal structure schematic diagram of an existing motor in electric automobile water cooled housing;
Fig. 3 is the partial enlarged drawing of the internal structure of an existing motor in electric automobile water cooled housing;
Fig. 4 is the upper surface schematic diagram of inner water sleeve of water cooled housing one execution mode of motor in electric automobile of the present invention;
Fig. 5 is the schematic diagram of claw of water cooled housing one execution mode of motor in electric automobile of the present invention;
Fig. 6 is the water cooled housing one embodiment schematic diagram of motor in electric automobile of the present invention.
Embodiment
Water cooled housing one execution mode of motor in electric automobile of the present invention, the motor in electric automobile water cooled housing comprises inner water sleeve, outer water jacket, water inlet pipe, outlet pipe, a plurality of claw.
Inner water sleeve and outer water jacket all are the intermediate hollow cirque structures, inner water sleeve is socketed in hollow in the outer water jacket, the cavity that inner water sleeve and outer water jacket are encircled into is as the flow channel of cooling fluid, the outer surface of inner water sleeve has groove, in cavity, form water channel, be provided with sealing ring between inner water sleeve and the outer water jacket, realize effectively sealing, prevent the cooling fluid leakage, water inlet pipe and outlet pipe and outer water jacket be by being threaded, and communicate with cavity that inner water sleeve and outer water jacket are encircled into, and water inlet pipe is positioned at the below of outer water jacket centerline direction, outlet pipe is positioned at the top of outer water jacket centerline direction, and cooling fluid enters from the below.The inner water sleeve inner surface is used to be close to stator, and when machine operation, the heat of stator passes to inner water sleeve, passes to the cooling fluid in the cavity again, takes away the heat of motor by circulating of cooling fluid;
As shown in Figure 4, the upper surface of described inner water sleeve 2 is a planar annular, form a plurality of dovetail grooves 21 (shown in the figure being three) along described planar annular, the wide opening of described a plurality of dovetail groove 21 is positioned at the outer surface of inner water sleeve 2, arrangement has a certain degree between described a plurality of dovetail groove 21, preferable, have two angles between dovetail groove in a plurality of dovetail grooves 21 at least more than or equal to 70 °;
As shown in Figure 5, described claw 30 upsides are provided with screw 31, and described screw 31 is used for claw 30 spiral shells are fixed in outer water jacket; The downside of described claw 1 is narrowed down by wide, for suitable trapezoidal of described dovetail groove, the lower surface of described claw 1 is the plane; The side of the dovetail groove on the downside 32 of described claw 1 and the upper surface of described inner water sleeve 2 fits, a plurality of claw 30 downsides embed respectively in a plurality of dovetail grooves 21 on the upper surface of described inner water sleeve 2, and a plurality of claw 30 spiral shells are fixed on the described outer water jacket, dovetail groove face on the downside two sides 32 of claw 30 and the upper surface of inner water sleeve 2, because of the interference power snug fit that produces, inner water sleeve 2 firmly is fixed together with outer water jacket on circumferential and axial, prevents to cause inner water sleeve mobile and axially at circumferencial direction because of vibrations.
The number of described claw can equal the number of the dovetail groove on the upper surface of described inner water sleeve.
One better embodiment, the number of described claw 30 is greater than the number of the dovetail groove on the upper surface of described inner water sleeve 2 21, wherein a part of claw 30 downsides embed respectively in a plurality of dovetail grooves 21 on the upper surface of described inner water sleeve 2, and be fixed on the outer water jacket by screw 31 spiral shells, other claw 30 downside lower surfaces are pressed together on the upper surface between the dovetail groove 21 of described inner water sleeve 2, and the frictional force that relies on contact-making surface is at circumferential fixing inner water sleeve 2.This better embodiment, be pressed together on by part claw 30 downside lower surfaces on the upper surface between the dovetail groove 21 of described inner water sleeve 2, and be fixed on the outer water jacket by screw 31 spiral shells, the frictional force that relies on contact-making surface is at circumferential fixedly inner water sleeve 2, can reduce by dovetail groove 21 in the circumferentially fixedly requirement of inner water sleeve 2, thereby can reduce the number of the dovetail groove 21 of moulding on the upper surface of inner water sleeve 2, and reduce requirement to the precision of the dovetail groove 21 of moulding, thereby the processing technology that reduces described inner water sleeve 2 requires and processing cost.
One embodiment as shown in Figure 6, the number of described claw 30 is eight, the number of the dovetail groove 21 on the upper surface of described inner water sleeve 2 is three, wherein three claws, 30 downsides embed in three dovetail grooves 21 on the upper surface of described inner water sleeve 2, and be fixed on the outer water jacket by screw 31 spiral shells, thereby by described oat tail groove structure make inner water sleeve 2 on circumferential and axial with outside water jacket be fixed together, other five claws, 30 downside lower surfaces are pressed together on the upper surface between the dovetail groove 21 of described inner water sleeve 2, and be fixed on the outer water jacket by screw 31 spiral shells, the frictional force that relies on contact-making surface is at circumferential further fixing inner water sleeve 2.
The water cooled housing of motor in electric automobile of the present invention, form a plurality of dovetail grooves in the upper surface of inner water sleeve, utilize downside by wide be narrowed with described dovetail groove suitable fall trapezoidal claw, in the dovetail groove on the upper surface that the claw downside is embedded described inner water sleeve, the interference power snug fit of dovetail groove face on the downside two sides of claw and the upper surface of inner water sleeve because of producing, outside claw is fixed on the water jacket after, make inner water sleeve on circumferential and axial with outside water jacket firmly be fixed together.The water cooled housing of motor in electric automobile of the present invention, simple in structure, reliable, materials are less, are beneficial to suitability for industrialized production.
Claims (8)
1. the water cooled housing of a motor in electric automobile comprises inner water sleeve, outer water jacket, it is characterized in that, also comprises a plurality of claws;
Described inner water sleeve, its upper surface are planar annular, form a plurality of dovetail grooves along described planar annular, and the wide opening of described a plurality of dovetail grooves is positioned at the outer surface of inner water sleeve, and arrangement has a certain degree between described a plurality of dovetail grooves;
Described claw, its upside is provided with screw, and described screw is used for the claw spiral shell is fixed in described outer water jacket; Its downside is narrowed down by wide, for suitable trapezoidal of described dovetail groove; Its lower surface is the plane;
In described each dovetail groove, embed a claw downside respectively, and the claw spiral shell is fixed on the described outer water jacket.
2. the water cooled housing of motor in electric automobile according to claim 1 is characterized in that, two angles between dovetail groove is arranged more than or equal to 70 ° in described a plurality of dovetail grooves.
3. the water cooled housing of motor in electric automobile according to claim 1 is characterized in that, the number of described claw equals the number of the dovetail groove on the upper surface of described inner water sleeve.
4. the water cooled housing of motor in electric automobile according to claim 1, it is characterized in that, the number of described claw is greater than the number of the dovetail groove on the upper surface of described inner water sleeve, wherein a part of claw downside embeds respectively in a plurality of dovetail grooves on the upper surface of described inner water sleeve, and spiral shell is fixed on the outer water jacket, other claw downside lower surface is pressed together on the upper surface between the dovetail groove of described inner water sleeve, and spiral shell is fixed on the outer water jacket.
5. the water cooled housing of motor in electric automobile according to claim 4 is characterized in that, the number of described claw is 8, and the number of the dovetail groove on the upper surface of described inner water sleeve is 3.
6. an inner water sleeve is characterized in that, its upper surface is a planar annular, forms a plurality of dovetail grooves along described planar annular, and the wide opening of described a plurality of dovetail grooves is positioned at the outer surface of inner water sleeve, and arrangement has a certain degree between described a plurality of dovetail grooves.
7. inner water sleeve according to claim 6 is characterized in that, two angles between dovetail groove is arranged more than or equal to 70 ° in described a plurality of dovetail grooves.
8. a claw is characterized in that,
Its upside is provided with screw;
Its downside is narrowed down by wide, for trapezoidal;
Its lower surface is the plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110233803 CN102290908B (en) | 2011-08-16 | 2011-08-16 | Water-cooling shell, inner jacket and jaw of electric vehicle motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110233803 CN102290908B (en) | 2011-08-16 | 2011-08-16 | Water-cooling shell, inner jacket and jaw of electric vehicle motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102290908A true CN102290908A (en) | 2011-12-21 |
| CN102290908B CN102290908B (en) | 2013-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110233803 Active CN102290908B (en) | 2011-08-16 | 2011-08-16 | Water-cooling shell, inner jacket and jaw of electric vehicle motor |
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| Country | Link |
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| CN (1) | CN102290908B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904386A (en) * | 2012-09-07 | 2013-01-30 | 联合汽车电子有限公司 | Water jacket structure for cooling of motor stator |
| CN103852202A (en) * | 2014-02-12 | 2014-06-11 | 联合汽车电子有限公司 | Device for testing interference fit force between inner water jacket and stator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4330726A (en) * | 1980-12-04 | 1982-05-18 | General Electric Company | Air-gap winding stator construction for dynamoelectric machine |
| WO2005064772A1 (en) * | 2003-12-30 | 2005-07-14 | Robert Bosch Gmbh | Electric machine |
| CN101087084A (en) * | 2007-05-25 | 2007-12-12 | 奇瑞汽车有限公司 | A cooling water cover of electromotive motorcar and its cooling method |
| CN201194353Y (en) * | 2008-04-24 | 2009-02-11 | 奇瑞汽车股份有限公司 | Motor water cooling housing for electric automobile |
| CN201204519Y (en) * | 2008-06-10 | 2009-03-04 | 四川东风电机厂有限公司 | Cooling water jacket for electric automobile motor |
| CN202282680U (en) * | 2011-08-16 | 2012-06-20 | 联合汽车电子有限公司 | Water cooling housing and inner water jacket for electric automobile motor |
-
2011
- 2011-08-16 CN CN 201110233803 patent/CN102290908B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4330726A (en) * | 1980-12-04 | 1982-05-18 | General Electric Company | Air-gap winding stator construction for dynamoelectric machine |
| WO2005064772A1 (en) * | 2003-12-30 | 2005-07-14 | Robert Bosch Gmbh | Electric machine |
| CN101087084A (en) * | 2007-05-25 | 2007-12-12 | 奇瑞汽车有限公司 | A cooling water cover of electromotive motorcar and its cooling method |
| CN201194353Y (en) * | 2008-04-24 | 2009-02-11 | 奇瑞汽车股份有限公司 | Motor water cooling housing for electric automobile |
| CN201204519Y (en) * | 2008-06-10 | 2009-03-04 | 四川东风电机厂有限公司 | Cooling water jacket for electric automobile motor |
| CN202282680U (en) * | 2011-08-16 | 2012-06-20 | 联合汽车电子有限公司 | Water cooling housing and inner water jacket for electric automobile motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904386A (en) * | 2012-09-07 | 2013-01-30 | 联合汽车电子有限公司 | Water jacket structure for cooling of motor stator |
| CN102904386B (en) * | 2012-09-07 | 2015-08-19 | 联合汽车电子有限公司 | For the jacket structure for water of motor stator cooling |
| CN103852202A (en) * | 2014-02-12 | 2014-06-11 | 联合汽车电子有限公司 | Device for testing interference fit force between inner water jacket and stator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102290908B (en) | 2013-05-15 |
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