CN202872557U - Motor and speed changer integrated transmission system for electric automobile - Google Patents
Motor and speed changer integrated transmission system for electric automobile Download PDFInfo
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- CN202872557U CN202872557U CN2012206167423U CN201220616742U CN202872557U CN 202872557 U CN202872557 U CN 202872557U CN 2012206167423 U CN2012206167423 U CN 2012206167423U CN 201220616742 U CN201220616742 U CN 201220616742U CN 202872557 U CN202872557 U CN 202872557U
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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
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- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model discloses a motor and speed changer integrated transmission system for an electric automobile. The motor and speed changer integrated transmission system is a two-gear automatic speed changer planetary gear mechanism. The mechanism comprises two single-row 2K-H planetary gear transmission systems, wherein according to the front-row planetary gear transmission system, a front-row tooth ring is fixed, and power is transmitted by a front row sun wheel to a front row planetary frame for output so as to finish one-stage speed reduction; according to the rear-row planetary gear transmission system, a clutch C1 combines or separates a rear-row sun wheel and a rear-row planetary frame; a brake B1 fixes and separates a rear row tooth ring and a box body; the rear-row planetary frame outputs the power finally; and two gears are switched according to different combinations of the work states of the clutch and the brake. The motor and speed changer integrated transmission system is simple in form, compact in structure, small in size and light in weight and meets an automobile light-weight rule.
Description
Technical field:
The utility model relates to a kind of Motor for Electric Automobile-speed changer integrated drive system.
Background technology:
In recent years, all kinds of automobile motors of China take the high density magneto as representative have been obtained obvious progress.Aspect design of electrical motor, adopt Modern Vehicle electric system design concept, the preliminary limit Design that solves multiple target high-performance automobile motor, technical barrier in conjunction with applying control strategy system integration emulation, adopt the structure assembly designing technique, realized that motor and speed changer are in height integrated design and the application of machinery, electromagnetism, heat.Integrated and the integrated trend of power drive system is more obvious.The development of electromechanical integration is from the structure assembly to the control integration and the system integration, and the electrified composition of automobile power is more and more higher.The mechanical-electric coupling power assembly system of the different coupling degree of depth is so that motor and gearbox contacting between the two becomes more and more tightr.
At present, the electric automobile on the market adopts the decelerator of fixed speed ratio more, and this kind of drive is simple in structure, cost is lower.But the decelerator of a gear of employing has proposed higher requirement to traction electric machine, so that traction electric machine should provide higher instantaneous torque at Heng Zhuanjuqu, provides the higher speed of service at Heng Gongshuaiqu again.Simultaneously, there is the lower problem of motor utilization ratio.
Existing electric automobile two speed transmission commonly used has AMT structure and DCT structure.When adopting the AMT structure, need to use synchronizer, this moment, shifting shock was larger.And when adopting the DCT structure because gearbox only has two gears, this moment double clutch construction that cost is increased is a lot.
Therefore a kind of fully autonomous property right of utility model motor-speed changer integrated gear train assembly is very necessary.
Summary of the invention:
For overcoming the defective of prior art, the purpose of this utility model is to provide a kind of Motor for Electric Automobile-speed changer integrated drive system, according to ripe 4AT structure, a kind of Motor for Electric Automobile-speed changer integrated drive system is provided, and exactly is a kind of pure electric automobile motor-speed changer integrated two-shift automatic variable speed device planetary gears.
The utility model technical solution problem adopts following technical scheme:
A kind of Motor for Electric Automobile-speed changer integrated drive system, whole system is in series by the first subsystem and the second subsystem;
Described the first subsystem is the 2K-H planetary transmission system, and overall structure is the distribution form of single planet, is respectively: motor and motor output shaft, front-seat sun gear, front-seat planetary gear, front-seat planet carrier, front-seat gear ring; Described front-seat sun gear is installed on the described motor output shaft by spline, with the planetary gear of described sun gear engagement by bearings on described front-seat planet carrier, described front-seat gear ring be fixed on the casing and with described front-seat planetary gear engagement;
Described the second subsystem is the 2K-H planetary transmission system, and the distribution form for single planet is respectively: arrange afterwards sun gear, rear seniority among brothers and sisters star-wheel, rear rows of planetary frame and rear ring gear; Described rear row's sun gear is installed on rear row's sun wheel shaft by key, described rear row's sun wheel shaft and described front-seat planet carrier are connected, in described rear row's sun wheel shaft periphery electromagnetic clutch is installed, the coiler part of described electromagnetic clutch and described rear row's sun wheel shaft are connected by key, and the armature of described electromagnetic clutch and described rear rows of planetary frame are connected by screw; With the rear seniority among brothers and sisters star-wheel of described rear row's sun gear engagement by bearings on described rear rows of planetary frame, with the rear ring gear of described rear seniority among brothers and sisters star-wheel engagement by bearings on described rear rows of planetary frame; Periphery at rear rows of planetary frame is equipped with electromagnetic brake by bearing, and the coiler part of described electromagnetic brake and described rear ring gear are connected by screw, and armature and the casing of described electromagnetic brake are connected by screw; The output shaft of whole system and described rear rows of planetary frame are connected, and described output shaft, rear row's sun wheel shaft and motor output shaft are concentric.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1, compares with present automotive automatic gear box planetary gears, motor of the present utility model-speed changer integrated two-shift automatic variable speed device planetary gears is more suitable in pure electric automobile special-purpose, reduce gear, gear shift executive component, had higher efficient.
2, compare with the DCT structure with two speed transmission AMT structure commonly used, shifting shock is less than the AMT structure, and production cost is lower than the DCT structure, and combination property is better, is easy to realize industrialized development.
3, the arrangement of gears form structure is simple, compact conformation, and volume is little, weight is little, meets the principle of automotive light weight technology.
4, adopt motor-speed changer integrated gear train assembly, realized that motor and speed changer in the height integrated design of machinery, electromagnetism, heat, have met the integrated of power drive system and integrative development trend.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
Number in the figure: 1 motor, 2 front-seat sun gears, 3 front-seat planetary gears, 4 front-seat planet carriers, 5 front-seat gear rings, 6 rear row's sun gears, 7 rear seniority among brothers and sisters star-wheels, 8 rear ring gears, H are that rear rows of planetary frame, C1 are that electromagnetic clutch, B1 are that electromagnetic brake, I are motor output shaft, and II is that rear row's sun wheel shaft, III are output shaft.
Below pass through embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
Embodiment:
Embodiment: referring to Fig. 1, whole system is formed by two cover Cascade Systems, wherein the first subsystem is the 2K-H planetary transmission system, overall structure is the distribution form of single planet, is respectively: motor 1 and motor output shaft I, front-seat sun gear 2, front-seat planetary gear 3, front-seat planet carrier 4, front-seat gear ring 5; Front-seat sun gear 2 is installed in motor output shaft I upper (motor output shaft also is the wheel shaft of front-seat sun gear) by spline, with the planetary gear 3 of sun gear engagement by bearings on front-seat planet carrier 4, front-seat gear ring 5 be fixed on the casing and with front-seat planetary gear 3 engagements.
The second subsystem is similarly the 2K-H planetary transmission system, and the distribution form for single planet is respectively: arrange afterwards sun gear 6, rear seniority among brothers and sisters star-wheel 7, rear rows of planetary frame H and rear ring gear 8; Rear row's sun gear 6 is installed on rear row's sun wheel shaft II by key, rear row's sun wheel shaft and front-seat planet carrier 4 be connected (arranging afterwards the output shaft that sun wheel shaft also is the first subsystem), in rear row's sun wheel shaft II periphery electromagnetic clutch C1 is installed, the coiler part of electromagnetic clutch C1 and rear row's sun wheel shaft II are connected by key, and the armature of electromagnetic clutch C1 and rear rows of planetary frame H are connected by screw; With the rear seniority among brothers and sisters star-wheel 7 of rear row's sun gear 6 engagements by bearings on rear rows of planetary frame H, with the rear ring gear 8 of rear seniority among brothers and sisters star-wheel 7 engagements by bearings on rear rows of planetary frame H; Periphery at rear rows of planetary frame H is equipped with electromagnetic brake B1 by bearing, and the coiler part of electromagnetic brake B1 and rear ring gear 8 are connected by screw, and armature and the casing of electromagnetic brake B1 are connected by screw; The output shaft III of whole system and rear rows of planetary frame H are connected, and output shaft III, rear row's sun wheel shaft II and motor output shaft I are concentric.
In the work, motor is clockwise with certain speed and the front-seat sun wheel shaft of moment of torsion drive motor output shaft I() rotation, when low or first gear electromagnetic brake B1 engages, and when electromagnetic clutch C1 does not work, row's sun gear 6 after this moment, power was delivered to through primary speed-down by front-seat planetary transmission system, the rows of planetary gear train assembly is finished double reduction after the warp again, and through output shaft III output, this moment, speed changer was in the D1 file location to last power by rear rows of planetary frame H; When top gear electromagnetic clutch C1 engages, and when electromagnetic brake B1 does not work, row's sun gear 6 after this moment, power was delivered to through primary speed-down by front-seat planetary transmission system, pass through again electromagnetic clutch C1, row's sun gear 6 and rear rows of planetary frame H's is synchronous after realizing, through output shaft III output, this moment, speed changer was in the D2 file location to last power by rear rows of planetary frame H; When the input motor rotates with certain speed and moment of torsion drive motor output shaft I counterclockwise, low or first gear electromagnetic brake B1 engages, and when electromagnetic clutch C1 does not work, row's sun gear 2 after this moment, power was delivered to through primary speed-down by front-seat planetary transmission system, the rows of planetary gear train assembly is finished double reduction after the warp again, through output shaft III output, this moment, speed changer was in the R file location to last power by rear rows of planetary frame H.
Thus, by the various combination of clutch of control system and a brake, thereby can realize two drive shifts and a reverse gear.
Take actual development type pure electric automobile as example, the selected gear number is that 2, one grades of gearratios are 13.04, and the second gear gearratio is 4.83.Planetary gear is joined tooth, and to calculate the number of teeth of each gear as shown in table 1.
Table 1 gear table of gear tooth number
As shown in Figure 1, the motor of present embodiment-speed changer integrated two-shift automatic variable speed device has used two gear shift executive components: a clutch, a brake.
The executive component of each gear is as shown in table 2.
Table 2 gear shift executive component worksheet
Annotate: "●" represents combination in the table, and " zero " represents to separate;
The explanation of each grade power transmission line is in conjunction with Fig. 1 and table 2.
1, neutral gear---N position
During the N position, clutch C1 and brake B1 all do not work, and this moment, motor can't be with transmission of power to output shaft III, and vehicle relies on inertia traveling or comes to a halt.
2, drive shift---D position (motor clockwise rotates)
(1) advance one grade (D1 shelves)
During the D1 shelves, electromagnetic brake B1 work, electromagnetic clutch C1 does not work.
Power drives front-seat sun gear 2 through motor shaft and clockwise rotates, front-seat planetary gear revolves round the sun around front-seat sun gear, because front-seat gear ring is fixed, front-seat planet carrier 4 turns clockwise with front-seat sun gear, finishes primary speed-down, because electromagnetic brake B1 work, so that rear ring gear 8 is fixing, power is passed to rear row's sun gear 6 by front-seat planet carrier 4, is passed to rear rows of planetary frame H again, finish double reduction, the final output shaft III outputting power that turns clockwise.These shelves are middle low or first gear, are mainly used in middle low speed driving and climbing etc.
(2) second gear (D2 shelves) that advances
During the D2 shelves, electromagnetic clutch C1 work, electromagnetic brake B1 does not work.
Power drives front-seat sun gear 2 through motor shaft and turns clockwise, front-seat planetary gear revolves round the sun around front-seat sun gear, because front-seat gear ring is fixed, front-seat planet carrier 4 turns clockwise with front-seat sun gear, finishes primary speed-down, because electromagnetic clutch C1 work, so that after arrange between sun gear 6 and the rear rows of planetary frame H and do not relatively rotate, power is passed to rear row's sun gear 6 and rear rows of planetary frame H simultaneously by front-seat planet carrier 4, finishes the secondary Synchronous Transmission, the final output shaft III outputting power that turns clockwise.These shelves are top gear, are mainly used in running at high speed.
3, reverse gear---R position (motor rotates counterclockwise)
During the R shelves, electromagnetic brake B1 work, electromagnetic clutch C1 does not work.Power transmission line is identical with the D1 shelves, because motor rotates counterclockwise, final output shaft III is rotated counterclockwise outputting power.
Claims (1)
1. Motor for Electric Automobile-speed changer integrated drive system is characterized in that:
Whole system is in series by the first subsystem and the second subsystem;
Described the first subsystem is the 2K-H planetary transmission system, overall structure is the distribution form of single planet, is respectively: motor (1) and motor output shaft (I), front-seat sun gear (2), front-seat planetary gear (3), front-seat planet carrier (4), front-seat gear ring (5); Described front-seat sun gear (2) is installed on the described motor output shaft (I) by spline, with the planetary gear (3) of described sun gear engagement by bearings on described front-seat planet carrier (4), described front-seat gear ring (5) is fixed on the casing and with described front-seat planetary gear (3) and meshes;
Described the second subsystem is the 2K-H planetary transmission system, and the distribution form for single planet is respectively: arrange afterwards sun gear (6), rear seniority among brothers and sisters star-wheel (7), rear rows of planetary frame (H) and rear ring gear (8); Described rear row's sun gear (6) is installed on rear row's sun wheel shaft (II) by key, described rear row's sun wheel shaft and described front-seat planet carrier (4) are connected, in described rear row's sun wheel shaft (II) periphery electromagnetic clutch (C1) is installed, the coiler part of described electromagnetic clutch (C1) and described rear row's sun wheel shaft (II) are connected by key, and the armature of described electromagnetic clutch (C1) and described rear rows of planetary frame (H) are connected by screw; With the rear seniority among brothers and sisters star-wheel (7) of described rear row's sun gear (6) engagement by bearings on described rear rows of planetary frame (H), with the rear ring gear (8) of described rear seniority among brothers and sisters star-wheel (7) engagement by bearings on described rear rows of planetary frame (H); Periphery at rear rows of planetary frame (H) is equipped with electromagnetic brake (B1) by bearing, the coiler part of described electromagnetic brake (B1) and described rear ring gear (8) are connected by screw, and armature and the casing of described electromagnetic brake (B1) are connected by screw; The output shaft of whole system (III) is connected with described rear rows of planetary frame (H), and described output shaft (III), rear row's sun wheel shaft (II) and motor output shaft (I) are concentric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206167423U CN202872557U (en) | 2012-11-20 | 2012-11-20 | Motor and speed changer integrated transmission system for electric automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206167423U CN202872557U (en) | 2012-11-20 | 2012-11-20 | Motor and speed changer integrated transmission system for electric automobile |
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| CN202872557U true CN202872557U (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206167423U Withdrawn - After Issue CN202872557U (en) | 2012-11-20 | 2012-11-20 | Motor and speed changer integrated transmission system for electric automobile |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983672A (en) * | 2012-11-20 | 2013-03-20 | 合肥工业大学 | Motor-transmission integral transmission system for electric automobile |
| CN103912640A (en) * | 2014-04-09 | 2014-07-09 | 天津天海同步科技股份有限公司 | Automatic two-gear transmission for electric vehicles |
| CN105443707A (en) * | 2016-01-22 | 2016-03-30 | 吉林大学 | Electric driver based on two-gear transmission |
| CN105508526A (en) * | 2016-01-26 | 2016-04-20 | 吉林大学 | Electric driving system based on double-planet-row two-gear transmission |
| CN105508525A (en) * | 2016-01-22 | 2016-04-20 | 吉林大学 | Electric driving system based on single planet row |
| CN105526318A (en) * | 2016-01-22 | 2016-04-27 | 吉林大学 | Electric drive system based on two-gear transmission device |
| CN105546073A (en) * | 2016-01-22 | 2016-05-04 | 吉林大学 | Electric drive system based on two-stage planetary line two-shift transmission |
| CN105570419A (en) * | 2016-01-22 | 2016-05-11 | 吉林大学 | Electric driving device based on double-planet-row two-gear transmission |
| CN109466308A (en) * | 2018-11-23 | 2019-03-15 | 浙江众泰汽车制造有限公司 | Riding Vehicular hybrid power speed change system |
-
2012
- 2012-11-20 CN CN2012206167423U patent/CN202872557U/en not_active Withdrawn - After Issue
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983672A (en) * | 2012-11-20 | 2013-03-20 | 合肥工业大学 | Motor-transmission integral transmission system for electric automobile |
| CN102983672B (en) * | 2012-11-20 | 2015-02-04 | 合肥工业大学 | Motor-transmission integral transmission system for electric automobile |
| CN103912640A (en) * | 2014-04-09 | 2014-07-09 | 天津天海同步科技股份有限公司 | Automatic two-gear transmission for electric vehicles |
| CN105443707A (en) * | 2016-01-22 | 2016-03-30 | 吉林大学 | Electric driver based on two-gear transmission |
| CN105508525A (en) * | 2016-01-22 | 2016-04-20 | 吉林大学 | Electric driving system based on single planet row |
| CN105526318A (en) * | 2016-01-22 | 2016-04-27 | 吉林大学 | Electric drive system based on two-gear transmission device |
| CN105546073A (en) * | 2016-01-22 | 2016-05-04 | 吉林大学 | Electric drive system based on two-stage planetary line two-shift transmission |
| CN105570419A (en) * | 2016-01-22 | 2016-05-11 | 吉林大学 | Electric driving device based on double-planet-row two-gear transmission |
| CN105526318B (en) * | 2016-01-22 | 2018-06-05 | 吉林大学 | A kind of power drive system based on two shift transmissions |
| CN105508526A (en) * | 2016-01-26 | 2016-04-20 | 吉林大学 | Electric driving system based on double-planet-row two-gear transmission |
| CN105508526B (en) * | 2016-01-26 | 2017-10-10 | 吉林大学 | A kind of power drive system based on the shift transmission of double planet wheel rows of mixing two |
| CN109466308A (en) * | 2018-11-23 | 2019-03-15 | 浙江众泰汽车制造有限公司 | Riding Vehicular hybrid power speed change system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130410 Effective date of abandoning: 20150204 |
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| RGAV | Abandon patent right to avoid regrant |