CN201181881Y - Brushless high-speed motor for electric vehicle - Google Patents
Brushless high-speed motor for electric vehicle Download PDFInfo
- Publication number
- CN201181881Y CN201181881Y CNU2008200860012U CN200820086001U CN201181881Y CN 201181881 Y CN201181881 Y CN 201181881Y CN U2008200860012 U CNU2008200860012 U CN U2008200860012U CN 200820086001 U CN200820086001 U CN 200820086001U CN 201181881 Y CN201181881 Y CN 201181881Y
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- Prior art keywords
- end cap
- planet carrier
- inner end
- gear
- electric vehicle
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a brushless high-speed motor that is used for an electric motor car, which comprises a shell (2), a stator component that is connected with a shaft (3), an inner end cover (4) that is connected with the a rotor component, an outer end cover (5) that is connected with the shell (2), a clutch (6) and a planetary gear reduction mechanism that is provided with a sun wheel (7), an inner gear (8), a planetary bracket (9) and a planetary wheel (10) that is arranged on the planetary bracket (9); both the inner end cover (4) and the outer end cover (5) are connected with the shaft (3) in a rotation way; the sun wheel (7) that is engaged with the planetary wheel (10) is connected with the inner end cover (4); the inner gear (8) that is engaged with the planetary wheel (10) is fixed on the shaft (3); the planetary bracket (9) is connected with the inner end cover (4) in a rotation way; the planetary bracket (9) is also connected with the shell (2) through the clutch (6). The motor not only has low noise, low processing precision requirement and small processing difficulty, but also has smaller appearance size of the planetary reduction mechanism.
Description
Technical field:
The utility model relates to a kind of motor, specifically is the brushless high-speed motor of a kind of electric vehicle.
Background technology:
At present, the brushless high-speed motor of prior art electric vehicle generally comprises the casing of fixedlying connected with electric vehicle hub, is connected outer end cap, inner end cap, stator module, rotor assembly, axle, clutch and reducing gear on the casing; Described outer end cap and inner end cap all are rotationally connected by bearing and axle; Described stator module is fixedlyed connected with axle; Described rotor assembly is connected on the inner end cap; Described reducing gear is connected between inner end cap and the casing; Described reducing gear is a planetary gear reducing mechanism, and it comprises the sun gear (central gear) that is connected with inner end cap, the planet carrier that is installed in the internal gear on the casing and is connected and is equipped with three planetary gears by bearing and axle.The brushless high-speed motor of the electric vehicle of said structure its axle when work is fixed, inner end cap can be rotated around axle under the effect of stator module and rotor assembly, and the deceleration strip motivation shell by planetary gear reducing mechanism rotates, and rotates and makes the electric motor car can be to overtake thereby finally drive electric vehicle hub.The operation principle of described planetary gear reducing mechanism is, described sun gear is a driving wheel, it can drive planetary gear and rotate when the inner end cap output speed, and the planet carrier that is used for installing planetary gear is can not rotate along with planetary gear as fixture, the rotation of planetary gear can drive the internal gear rotation with its engagement, and final internal gear drives the casing output speed.Adopt the brushless high-speed motor of said structure electric vehicle to have following two weak points in actual applications: 1, because internal gear is directly installed on the casing, therefore cause the parts of gear noise not only to comprise sun gear, planetary gear and internal gear, but also comprise casing and outer end cap, because internal gear, sun gear, noise between planetary gear and the planet carrier is difficult to avoid, so in order to reduce the noise of gear, prior art has only the machining accuracy that improves casing and outer end cap just can reach the low noise standard of gear, and this makes the difficulty of processing of the brushless high speed electric machine part of prior art electric vehicle improve greatly; 2, described planet carrier does not rotate along with planetary gear as fixture, what drive the casing output speed is internal gear, this makes that the overall dimension of the planetary gear speed reducing mechanism be made up of parts such as internal gear and planetary gears in the brushless high-speed motor of prior art electric vehicle is bigger, causes the manufacturing cost of motor higher.
The utility model content:
The technical problems to be solved in the utility model is, provides that a kind of not only noise is low, requirement on machining accuracy is low, difficulty of processing is little, and the less brushless high-speed motor of electric vehicle of planetary gear speed reducing mechanism overall dimension.
Technical solution of the present utility model is, a kind of brushless high-speed motor of electric vehicle with following structure is provided, and it comprises the casing fixedly connected with electric vehicle hub, the stator module, the inner end cap that is connected with rotor assembly that are connected with axle, is connected outer end cap, clutch and planetary gear reducing mechanism on the casing; Described planetary gear reducing mechanism comprises sun gear, internal gear, planet carrier and is installed in planetary gear on the planet carrier; Described inner end cap and outer end cap all are rotationally connected with axle; Described sun gear is connected with inner end cap; Described sun gear and planetary gear engagement; Described planetary gear and internal gear engagement; Described internal gear is fixed on the axle; Described planet carrier and inner end cap are for being rotationally connected; Described planet carrier is connected with casing by clutch.
After adopting above structure, compared with prior art, the utlity model has following advantage: unlike the prior art, because the internal gear in the utility model is fixed on the axle, and what drive the casing output speed is planet carrier, and the parts that therefore cause gear noise are only remaining sun gear, internal gear and planetary gear just, and this not only makes noise of the present utility model reduce greatly, and the machining accuracy of casing and outer end cap is reduced greatly, difficulty of processing reduces greatly; Also just because of adopt planet carrier to drive the casing output speed, thereby the overall dimension of the planetary gear speed reducing mechanism of being made up of parts such as internal gear and planetary gears in the brushless high-speed motor of the utility model electric vehicle is reduced greatly, and reduced the manufacturing cost of this motor.
As a kind of improvement of the present utility model, be provided with a seal between described internal gear and the clutch.The setting of seal can well prevent that the lubricant grease in the planetary gear reducing mechanism is exuded to outside the planetary gear reducing mechanism.
As another kind of improvement the of the present utility model, described planetary gear is installed on the planet carrier can adopt following concrete structure: described planet carrier is provided with planet wheel spindle; The right-hand member external peripheral surface of described planet wheel spindle cooperates with the inner ring of bearing I II; The outer ring of described bearing I II is made axial location by the hole with elastic spring and is cooperated with planetary gear; Described planet wheel spindle is provided with and limits the axially movable shaft block ring II of bearing I II; Be provided with the planetary gear spacer between the left side of described bearing I II and the planet carrier.Being provided with of shaft block ring II and planetary gear spacer can strengthen the stability that planetary gear rotates, thereby further reduces noise.
Description of drawings:
Fig. 1 is the structural representation of the brushless high-speed motor of the utility model electric vehicle.
Fig. 2 is the structure for amplifying schematic diagram of A among Fig. 1.
Shown in the figure: 1, electric vehicle hub, 2, casing, 3, axle, 4, inner end cap, 41, interior left end cap, 42, interior right end cap, 5, outer end cap, 51, outer left end cap, 52, outer right end cap, 6, clutch, 7, sun gear, 8, internal gear, 9, planet carrier, 10, planetary gear, 11, water proof ring, 12, bearing I, 13, flat key I, 14, screw I, 15, the internal gear fixed mount, 16, flat key II, 17, bearing I I, 18, flat key III, 19, transmission ring, 20, screw II, 21, pad, 22, shaft block ring I, 23, seal, 24, planet wheel spindle, 25, bearing I II, 26, the hole elastic spring, 27, shaft block ring II, 28, the planetary gear spacer, 29, coil, 30, magnet steel, 31, the magnetic hub; 32, bearing I V, 33, bearing I II.
Specific embodiment:
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
As depicted in figs. 1 and 2, in this specific embodiment, the brushless high-speed motor of the utility model electric vehicle comprises the casing 2 fixedly connected with electric vehicle hub 1, with axle 3 stator modules that are connected, an inner end cap 4 that is connected with rotor assembly, be connected outer end cap 5, clutch 6 and planetary gear reducing mechanism on the casing 2; Stator module comprises the punching (not shown) that is fixedly connected on axle 3; There is coil 29 in described punching Shangrao; Described rotor assembly is mainly magnetic hub 31; Be stained with 30 on the described magnetic hub 31; Described magnetic hub 31 is connected on the inner end cap 4 by screw; Described planetary gear reducing mechanism comprises sun gear 7, internal gear 8, planet carrier 9 and planetary gear 10.Described outer end cap 5 is divided into outer left end cap 51 and outer right end cap 52, and in this specific embodiment, a described left side refers to that the left side of Fig. 1 and Fig. 2 is a left side, and the right of Fig. 1 and Fig. 2 is right, and the endoporus of described outer left end cap 51 and outer right end cap 52 cooperates with the outer ring of bearing I II33; The inner ring of described bearing I II33 cooperates with axle 3; Be equipped with water proof ring 11 between described outer left end cap 51 and outer right end cap 52 and the axle 3.By bearing I II33, thereby make outer left end cap 51 and outer right end cap 52 realize being rotationally connected with axle 3.Left end cap 41 and interior right end cap 42 in described inner end cap 4 is divided into, described interior left end cap 41 is rotationally connected with axle 13 by bearing I V32.Described sun gear 5 is connected with inner end cap 4; Described sun gear 5 and planetary gear 10 engagements; Described planetary gear 11 and internal gear 8 engagements; Described internal gear 8 is fixed on the axle 3; Described planet carrier 9 and inner end cap 4 are for being rotationally connected; Described planet carrier 9 is connected with casing 2 by clutch 6.
In this specific embodiment, what described sun gear 7 was connected employing with inner end cap 4 is following concrete structure: described sun gear 7 is connected with the interior right end cap 42 of inner end cap 4 by flat key I13.Right end cap 42 shaft hole inner walls cooperate with the outer ring of bearing I 12 in described; The inner ring of described bearing I 12 cooperates with axle 3; Described sun gear 7 and inner end cap 4 axially between be provided with pad 21.Described internal gear 8 is fixed on the axle 3 and is adopted as following concrete structure: described internal gear 8 is connected on the internal gear fixed mount 15 by screw I14; Described internal gear fixed mount 15 is connected on the axle 3 by flat key II16; There is one to be used to limit internal gear fixed mount 15 axially movable shaft block ring I22 on the described axle 3.
In this specific embodiment, described planet carrier 9 is following concrete structure with inner end cap 4 for what be rotationally connected employing: described planet carrier 9 endoporus cooperate with the outer ring of bearing I I17; The inner ring of described bearing I I17 cooperates with inner end cap 4.Described planet carrier 9 is connected what adopt by clutch 6 with casing 2 be following concrete structure: described planet carrier 9 outer holes are connected with clutch 6; Described clutch 6 is connected with transmission ring 19 by flat key II18; Described transmission ring 19 and casing 2 match; Described flat key II18 is fixed on the transmission ring 19 with screw II20; Be provided with a seal 23 between described internal gear 8 and the clutch 6.
In this specific embodiment, it is following concrete structure that described planetary gear 10 is installed on the planet carrier 9 what adopt: described planet carrier 9 is provided with planet wheel spindle 24; The right-hand member external peripheral surface of described planet wheel spindle 24 cooperates with the inner ring of bearing I II25; The outer ring of described bearing I II25 cooperates with planetary gear 10 with elastic spring 26 by the hole; Described planet wheel spindle 24 is provided with and limits the axially movable shaft block ring II27 of bearing I II25; Be provided with planetary gear spacer 28 between the left side of described bearing I II25 and the planet carrier 9.
Claims (9)
1, the brushless high-speed motor of a kind of electric vehicle comprises the casing (2) fixedly connected with electric vehicle hub (1), the stator module, the inner end cap (4) that is connected with rotor assembly that are connected with axle (3), is connected outer end cap (5), clutch (6) and planetary gear reducing mechanism on the casing (2); Described planetary gear reducing mechanism comprises sun gear (7), internal gear (8), planet carrier (9) and is installed in planetary gear (10) on the planet carrier (9); Described inner end cap (4) and outer end cap (5) all are rotationally connected with axle (3), and it is characterized in that: described sun gear (7) is connected with inner end cap (4); Described sun gear (7) and planetary gear (10) engagement; Described planetary gear (10) and internal gear (8) engagement; Described internal gear (8) is fixed on the axle (3); Described planet carrier (9) and inner end cap (4) are for being rotationally connected; Described planet carrier (9) is connected with casing (2) by clutch (6).
2, the brushless high-speed motor of electric vehicle according to claim 1 is characterized in that: described sun gear (7) is connected with inner end cap (4) and refers to, described sun gear (7) is connected with inner end cap (4) by flat key I (13).
3, the brushless high-speed motor of electric vehicle according to claim 2 is characterized in that: described sun gear (5) and inner end cap (4) axially between be provided with pad (21).
4, the brushless high-speed motor of electric vehicle according to claim 1 is characterized in that: described internal gear (8) is fixed on axle (3) and refers to that upward described internal gear (8) is connected on the internal gear fixed mount (15) by screw I (14); Described internal gear fixed mount (15) is connected on the axle (3) by flat key II (16).
5, the brushless high-speed motor of electric vehicle according to claim 4 is characterized in that: have one to be used to limit the axially movable shaft block ring I of internal gear fixed mount (15) (22) on the described axle (3).
6, according to claim 1 or the brushless high-speed motor of 4 described electric vehicles, it is characterized in that: be provided with a seal (23) between described internal gear (8) and the clutch (6).
7, the brushless high-speed motor of electric vehicle according to claim 1 is characterized in that: described planet carrier (9) is the finger that is rotationally connected with inner end cap (4), and described planet carrier (9) endoporus cooperates with the outer ring of bearing I I (17); The inner ring of described bearing I I (17) cooperates with inner end cap (4).
8, the brushless high-speed motor of electric vehicle according to claim 1 is characterized in that: described planet carrier (9) is connected with casing (2) by clutch (6) and refers to that described planet carrier (9) cylindrical is connected with clutch (6); Described clutch (6) is connected with transmission ring (19) by flat key II (18); Described transmission ring (19) and casing (2) match; Described flat key II (18) is fixed on the transmission ring (19) with screw II (20).
9, the brushless high-speed motor of electric vehicle according to claim 1 is characterized in that: described planetary gear (10) is installed in planet carrier (9) and upward refers to, described planet carrier (9) is provided with planet wheel spindle (24); The right-hand member external peripheral surface of described planet wheel spindle (24) cooperates with the inner ring of bearing I II (25); The outer ring of described bearing I II (25) is made axial location by the hole with elastic spring (26) and is cooperated with planetary gear (10); Described planet wheel spindle (24) is provided with and limits bearing I II (25) axially movable shaft block ring II (27); Be provided with planetary gear spacer (28) between the left side of described bearing I II (25) and the planet carrier (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200860012U CN201181881Y (en) | 2008-04-17 | 2008-04-17 | Brushless high-speed motor for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200860012U CN201181881Y (en) | 2008-04-17 | 2008-04-17 | Brushless high-speed motor for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201181881Y true CN201181881Y (en) | 2009-01-14 |
Family
ID=40251374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200860012U Expired - Lifetime CN201181881Y (en) | 2008-04-17 | 2008-04-17 | Brushless high-speed motor for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201181881Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377300A (en) * | 2010-08-17 | 2012-03-14 | 杨中兴 | Double-stator single-rotor rare earth permanent magnet motor |
| CN102390280A (en) * | 2011-09-30 | 2012-03-28 | 上海瑞尔实业有限公司 | Electric car power assembly with automatic transmission |
| CN110469638A (en) * | 2019-09-18 | 2019-11-19 | 高阳县恩诺新能源科技有限公司 | A kind of brushless planet suppression driver for electric seeder |
-
2008
- 2008-04-17 CN CNU2008200860012U patent/CN201181881Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377300A (en) * | 2010-08-17 | 2012-03-14 | 杨中兴 | Double-stator single-rotor rare earth permanent magnet motor |
| CN102390280A (en) * | 2011-09-30 | 2012-03-28 | 上海瑞尔实业有限公司 | Electric car power assembly with automatic transmission |
| CN110469638A (en) * | 2019-09-18 | 2019-11-19 | 高阳县恩诺新能源科技有限公司 | A kind of brushless planet suppression driver for electric seeder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090114 |
|
| CX01 | Expiry of patent term |