CN102290908B - 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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- CN102290908B CN102290908B CN 201110233803 CN201110233803A CN102290908B CN 102290908 B CN102290908 B CN 102290908B CN 201110233803 CN201110233803 CN 201110233803 CN 201110233803 A CN201110233803 A CN 201110233803A CN 102290908 B CN102290908 B CN 102290908B
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- water 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 electromotor 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 larger and complicated operating mode of load.If the untimely discharge of heat will impact the performance of motor.
If motor is positioned at the front deck of automobile, due to front deck ambient temperature very high (generally over 100 ℃), also can make the temperature of motor increase thereupon.Some are integrated in hybrid electric vehicle between engine and gearbox with motor, and the temperature in the speed change box clutch housing is higher, and regional area may reach 300 ℃ of left and right in some cases.
The heat of the generation of engine and gearbox can pass on motor, causes that motor temperature further raises, and the normal operation of motor is caused serious threat.Therefore the one effective cooling system of cover must be set on electric motor of automobile, the temperature of motor is remained in rational scope.
The present electric automobile especially motor of mixed power electric car is subjected to the restriction of structural condition, mostly adopts natural ventilation system or forced ventilation mode to carry out cooling, seldom adopts the mode of water-cooled, and cooling effect is not ideal enough.
Chinese patent ZL200820034844.8 discloses motor water cooling housing for electric automobile, as Fig. 1, Fig. 2, shown in Figure 3, motor water cooling housing for electric automobile is by inner water sleeve 2, outer water jacket 1, water inlet pipe 9, outlet pipe 6, stator back-up ring 8 forms, inner water sleeve 2 and outer water jacket 1 are all middle open circles annular structures, inner water sleeve 2 is socketed in hollow in 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, increase with the contact area of cooling fluid and can 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 connects inner water sleeve 2 and outer water jacket 1 by dowel hole 5, is provided with sealing ring 13 between inner water sleeve 2 and outer water jacket 1, realizes effective sealing, prevents the cooling fluid leakage.Water inlet pipe 9 and outlet pipe 6 are threaded connection with outer water jacket 1, 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, is conducive to discharge the gas in cavity.
One end of three stator cables 16 is connected connection with stator, the other end connects with cable joint 3 on being connected water cooled housing.Outer water jacket 1 is threaded connection with stator back-up ring 8, 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, then pass to the cooling fluid in cavity 14, 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 mounted motor, the installation site of motor is determined according to actual conditions, can between engine and gearbox, with bolt, engine, motor and gearbox be fixed together.
Chinese patent ZL200820034844.8 discloses motor water cooling housing for electric automobile, 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, pin 11 connects inner water sleeve 2 and outer water jacket 1 limits inner water sleeve 2 in circumferential movement by being embedded at dowel hole 5, complex structure, materials are more.
Summary of the invention
The technical problem to be solved in the present invention is to provide 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 the suitable inverted trapezoidal of described dovetail groove; Its lower surface is the plane;
Embed respectively a claw downside in described each dovetail groove, and the claw spiral shell is fixed on described outer water jacket.
There are two angles between dovetail groove can be more than or equal to 70 ° in described a plurality of dovetail groove.
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 outer water jacket, other claw downside lower surface is pressed together on upper surface between the dovetail groove of described inner water sleeve, and spiral shell is fixed on outer water jacket.
Better, 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 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 more than or equal to 70 ° in described a plurality of dovetail grooves.
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, is inverted 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 the wide claw that is narrowed with the suitable inverted trapezoidal of described dovetail groove, 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 producing, after claw being fixed on outer water jacket, inner water sleeve firmly is fixed together on circumferential and axial with outer water jacket.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 water cooling housing for electric automobile external structure schematic diagram;
Fig. 2 is the internal structure schematic diagram of an existing motor water cooling housing for electric automobile;
Fig. 3 is the partial enlarged drawing of the internal structure of an existing motor water cooling housing for electric automobile;
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, motor water cooling housing for electric automobile comprises inner water sleeve, outer water jacket, water inlet pipe, outlet pipe, a plurality of claw.
inner water sleeve and outer water jacket are all middle open circles annular structures, inner water sleeve is socketed in hollow in 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, form water channel in cavity, be provided with sealing ring between inner water sleeve and outer water jacket, realize effective sealing, prevent the cooling fluid leakage, water inlet pipe and outlet pipe and outer water jacket are threaded connection, and the cavity that is encircled into inner water sleeve and outer water jacket communicates, 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, cooling fluid enters from the below.The inner water sleeve inner surface is used for being close to stator, and when machine operation, the heat of stator passes to inner water sleeve, then passes to the cooling fluid in cavity, 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 planar annular, form a plurality of dovetail grooves 21 (shown in 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, better, 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 the suitable inverted 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 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 from causing because of vibrations inner water sleeve at circumferencial direction and the movement axially.
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 21 on the upper surface of described inner water sleeve 2, 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 outer water jacket by screw 31 spiral shells, other claw 30 downside lower surfaces are pressed together on 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 outer water jacket by screw 31 spiral shells, rely on the frictional force of contact-making surface 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 in three dovetail grooves 21 on the upper surface of the three claw 30 described inner water sleeves 2 of downsides embedding, and be fixed on outer water jacket by screw 31 spiral shells, thereby by described oat tail groove structure, inner water sleeve 2 is fixed together on circumferential and axial with outer water jacket, other five claws 30 downside lower surfaces are pressed together on upper surface between the dovetail groove 21 of described inner water sleeve 2, and be fixed on outer water jacket by screw 31 spiral shells, rely on the frictional force of contact-making surface at circumferential further fixedly 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 the wide claw that is narrowed with the suitable inverted trapezoidal of described dovetail groove, 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 producing, after claw being fixed on outer water jacket, inner water sleeve firmly is fixed together on circumferential and axial with outer water jacket.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, comprise 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 the suitable inverted trapezoidal of described dovetail groove; Its lower surface is the plane;
Embed respectively a claw downside in described each dovetail groove, and the claw spiral shell is fixed on 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 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 outer water jacket, other claw downside lower surface is pressed together on upper surface between the dovetail groove of described inner water sleeve, and spiral shell is fixed on 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. inner water sleeve, this inner water sleeve is fixed together by claw and outer water jacket and consists of the water cooled housing of motor in electric automobile, it is characterized in that, the inner water sleeve upper surface is planar annular, form 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.
7. inner water sleeve according to claim 6, is characterized in that, two angles between dovetail groove arranged more than or equal to 70 ° in described a plurality of dovetail grooves.
8. claw, the inside and outside water jacket of the water cooled housing of motor in electric automobile is fixed together by claw, it is characterized in that,
The claw upside is provided with screw;
The claw downside is narrowed down by wide, is inverted trapezoidal;
The claw 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 CN102290908A (en) | 2011-12-21 |
| CN102290908B true 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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (5)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10361864A1 (en) * | 2003-12-30 | 2005-07-28 | Robert Bosch Gmbh | Electric machine |
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2011
- 2011-08-16 CN CN 201110233803 patent/CN102290908B/en active Active
Patent Citations (5)
| 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 |
| 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 |
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| Publication number | Publication date |
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| CN102290908A (en) | 2011-12-21 |
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