CN213534440U - Electric automobile and multi-gear transmission device thereof - Google Patents
Electric automobile and multi-gear transmission device thereof Download PDFInfo
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- CN213534440U CN213534440U CN202022457082.6U CN202022457082U CN213534440U CN 213534440 U CN213534440 U CN 213534440U CN 202022457082 U CN202022457082 U CN 202022457082U CN 213534440 U CN213534440 U CN 213534440U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 49
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- 230000009286 beneficial effect Effects 0.000 description 2
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Abstract
The utility model belongs to the technical field of electric automobiles, and discloses an electric automobile and a multi-gear transmission device thereof, which comprises a shell, a planet row, a gear set, a differential mechanism, a brake, a clutch and a first motor, wherein the planet row comprises a sun gear, a planet carrier and a gear ring; the planet carrier is connected with the planet wheel, and the planet wheel is respectively meshed with the sun wheel and the gear ring; the input end of the gear set is connected with the planet carrier; the differential is connected with the output end of the gear set; the brake is connected between the shell and the sun gear; the clutch is connected between any two of the ring gear, the sun gear and the planet carrier; the first motor is connected with the input shaft of the gear ring. Adopt the utility model discloses, can realize two electricelectric moves and keep off the position, can realize unpowered interruption again and shift, reduce the impact of shifting, guarantee the steady output of power, promote user's the car experience.
Description
Technical Field
The utility model belongs to the technical field of electric automobile, especially, relate to an electric automobile and many gears transmission thereof.
Background
In view of the characteristics of low cost and limited endurance of useful electric vehicles, the electric vehicles can be expected to become mainstream in the future when traveling in short distance. Especially in a big city where the electric automobile is preferred by the limited purchase and restricted traffic policy, the electric automobile has obvious advantages. Especially, when a family with a traditional vehicle/hybrid vehicle purchases a second vehicle only for urban trip, the electric vehicle has obvious advantages.
In order to provide better starting acceleration and overtaking acceleration experience for a user and realize higher maximum speed of the electric vehicle, a conceivable solution is to adopt a multi-gear transmission device, for example, chinese patent [ CN201610882507.3 ] discloses an electric vehicle power coupling system, an electric vehicle having the same, and a control method thereof, and the electric vehicle power coupling system includes: the planetary gear transmission mechanism comprises a sun gear, a planetary carrier and a gear ring; the planet carrier is connected with the planet wheel, and the planet wheel is respectively meshed with the sun wheel and the gear ring; a clutch controlled to be engaged with or disengaged from the ring gear; a final reduction gear set connected to an output shaft of the carrier; a differential connected to an output shaft of the final drive gear set; a first motor that drives an input shaft of a sun gear of the planetary gear transmission mechanism; and a second motor that drives the output shaft of the ring gear or the carrier through a synchronizer. According to the power coupling system of the electric automobile, different working modes can be used under different working conditions, so that different requirements for motor power or rotating speed and the like are met, and the applicability of the electric automobile is greatly improved. However, the power coupling system of the electric vehicle has the following defects: two gears are designed based on the synchronizer, unpowered interrupted gear shifting cannot be achieved, smoothness is poor, and an axle and tooth system is complex, large in size and not beneficial to arrangement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can realize two electricelectric moves and keep off the position, can realize again that unpowered interruption shifts, and electric automobile and many gears transmission that the ride comfort is good.
In order to achieve the above object, a first aspect of the present invention provides a multi-gear transmission device for an electric vehicle, which includes a housing, a planetary gear set, a differential, a brake, a clutch, and a first motor, wherein the planetary gear set includes a sun gear, a planetary carrier, and a ring gear; the planet carrier is connected with the planet wheel, and the planet wheel is respectively meshed with the sun wheel and the gear ring; the input end of the gear set is connected with the planet carrier; the differential is connected with the output end of the gear set; the brake is connected between the shell and the sun gear; the clutch is connected between any two of the ring gear, the sun gear and the planet carrier; the first motor is connected with the input shaft of the gear ring.
As the preferred scheme of the utility model, electric automobile many gears transmission still include the second motor, the second motor with the input of gear train is connected.
As the utility model discloses a preferred scheme, the gear train includes first gear, jackshaft, second gear and third gear, first gear does the input of gear train, the third gear does the output of gear train, first gear with the one end coaxial coupling of jackshaft, the other end of jackshaft with second gear coaxial coupling, the second gear with third gear engagement, the third gear with differential mechanism's input shaft coaxial coupling.
As a preferable aspect of the present invention, the planet carrier is provided with a gear engaged with the first gear.
As a preferred embodiment of the present invention, the driving shaft of the second motor is connected to a fourth gear, and the fourth gear is engaged with the first gear.
As the utility model discloses a preferred scheme, will when the stopper the casing with the sun gear joint, and the clutch will the ring gear the sun gear with when arbitrary both of planet carrier separate, electric automobile keeps off a position transmission more is in first fender position.
As a preferable embodiment of the present invention, in the first gear, a transmission ratio from the first motor to the planet carrier is (i + 1)/i; wherein i is the transmission ratio of the planetary row.
As the utility model discloses a preferred scheme, will when the stopper the casing with the sun gear separation, and the clutch will the ring gear the sun gear with when arbitrary both of planet carrier engage, electric automobile keeps off a position transmission more is in the second and keeps off the position.
As a preferred embodiment of the present invention, the transmission ratio of the first motor to the planet carrier is 1 under the second gear.
In addition, a second aspect of the present invention provides an electric vehicle, comprising the electric vehicle multi-gear transmission device described in the above items, and a wheel connected to the differential via a half shaft.
Implement the utility model provides a pair of electric automobile and many gears transmission thereof compares with prior art, and its beneficial effect lies in:
when the shell is connected with the sun gear through the brake and any two of the gear ring, the sun gear and the planet carrier are separated through the clutch, the multi-gear transmission device of the electric automobile is in a first gear, and the electric automobile can obtain good dynamic property; when the shell is separated from the sun gear by the brake and any two of the gear ring, the sun gear and the planet carrier are connected by the clutch, the multi-gear transmission device of the electric automobile is in a second gear, and the electric automobile can realize higher maximum speed. Therefore, the switching of the two gears is executed by the cooperation of the brake and the clutch, the unpowered interrupt gear shifting can be realized, the gear shifting impact is reduced, the stable power output is ensured, and the vehicle using experience of a user is improved.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
Fig. 1 is a schematic structural diagram (one) of a multi-gear transmission device of an electric vehicle provided by the present invention;
fig. 2 is a schematic structural diagram (ii) of a multi-gear transmission device of an electric vehicle according to the present invention.
The labels in the figure are:
1 is a shell, 2 is a planet row, and 3 is a gear set; 4 is a differential mechanism, 5 is a brake, 6 is a clutch, 7 is a first motor, and 8 is a sun gear; 9 is a planet wheel; 10 is a planet carrier; 11 is a gear ring; reference numeral 12 denotes a second motor, 13 denotes a first gear, 14 denotes an intermediate shaft, 15 denotes a second gear, 16 denotes a third gear, and 17 denotes a fourth gear.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, and do not indicate or imply that the machine or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
As shown in fig. 1 and fig. 2, the multi-gear transmission device for an electric vehicle according to the preferred embodiment of the present invention includes a housing 1, a planetary gear set 2, a gear set 3, a differential 4, a brake 5, a clutch 6, and a first electric machine 7, where the planetary gear set 2 includes a sun gear 8, a planetary gear 9, a planet carrier 10, and a ring gear 11; the planet carrier 10 is connected with the planet wheels 9, and the planet wheels 9 are respectively meshed with the sun wheel 8 and the ring gear 11; the input end of the gear set 3 is connected with the planet carrier 10; the differential 4 is connected with the output end of the gear set 3; the brake 5 is connected between the housing 1 and the sun gear 8, and can realize the connection or disconnection between the housing 1 and the sun gear 8; the clutch 6 is connected between any two of the ring gear 11, the sun gear 8 and the planet carrier 10, and can realize the separation or the connection between the two; the first electric machine 7 is connected to the input shaft of the ring gear 11. The examples in fig. 1 and 2 are both the case where the clutch 6 is connected between the ring gear 11 and the sun gear 8, that is, the clutch 6 can separate or engage the ring gear 11 from or with the sun gear 8; in addition, when the clutch 6 is connected between the ring gear 11 and the carrier 10, the clutch 6 can separate or connect the ring gear 11 from or with the carrier 10; when the clutch 6 is connected between the sun gear 8 and the planet carrier 10, the clutch 6 can be disengaged or engaged between the sun gear 8 and the planet carrier 10.
According to the multi-gear transmission device of the electric automobile in the preferred embodiment of the invention, when the brake 5 engages the housing 1 with the sun gear 8 and the clutch 6 separates any two of the gear ring 11, the sun gear 8 and the planet carrier 10, the multi-gear transmission device of the electric automobile is in the first gear, and the electric automobile can obtain good dynamic performance; when the brake 5 separates the housing 1 from the sun gear 8 and the clutch 6 engages any two of the ring gear 11, the sun gear 8 and the planet carrier 10, the multi-gear transmission device of the electric automobile is in the second gear, and the electric automobile can achieve higher maximum speed. Therefore, the two gears are switched by the cooperation of the brake 5 and the clutch 6, unpowered interruption gear shifting can be realized, gear shifting impact is reduced, stable power output is guaranteed, and user's vehicle using experience is improved.
For example, in the first gear, the transmission ratio of the first electric machine 7 to the planet carrier 10 is (i + 1)/i; where i is the transmission ratio of the planetary row 2.
For example, in the second gear, the transmission ratio of the first electric machine 7 to the planet carrier 10 is 1.
Illustratively, the multi-gear transmission device of the electric automobile further comprises a second electric machine 12, and the second electric machine 12 is connected with the input end of the gear set 3. When the gears are switched, the second motor 12 drives the gear set 3 at any time, so that the gear set 3 has the driving force provided by the second motor 12 and continuously outputs the driving force to the differential 4 and the wheels, thereby ensuring the continuity of the automobile power and having better smoothness.
For example, in order to make the structure of the multi-gear transmission device of the electric vehicle more reasonable and compact, the gear set 3 includes a first gear 13, an intermediate shaft 14, a second gear 15 and a third gear 16, the first gear 13 is an input end of the gear set 3, the third gear 16 is an output end of the gear set 3, the first gear 13 is coaxially connected with one end of the intermediate shaft 14, the other end of the intermediate shaft 14 is coaxially connected with the second gear 15, the second gear 15 is meshed with the third gear 16, and the third gear 16 is coaxially connected with the input shaft of the differential 4. Wherein the planet carrier 10 is provided with a gear wheel which meshes with the first gear wheel 13. A fourth gear 17 is connected to the driving shaft of the second motor 12, and the fourth gear 17 is engaged with the first gear 13.
Based on above-mentioned electric automobile keeps off position transmission more, the utility model also provides an electric automobile, it includes above each item content electric automobile keep off position transmission more to and be connected to via the semi-axis differential mechanism 4's wheel. Since the electric vehicle comprises the electric vehicle multi-gear transmission device, all the advantages of the electric vehicle multi-gear transmission device are achieved, and the description is not made herein.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides an electric automobile multi-gear transmission which characterized in that includes:
a housing;
the planet row comprises a sun gear, a planet carrier and a gear ring; the planet carrier is connected with the planet wheel, and the planet wheel is respectively meshed with the sun wheel and the gear ring;
the input end of the gear set is connected with the planet carrier;
a differential connected to an output of the gear set;
a brake connected between the housing and the sun gear;
a clutch connected between any two of the ring gear, the sun gear, and the carrier; and
a first motor connected with the input shaft of the ring gear.
2. The multi-gear transmission device of the electric vehicle as claimed in claim 1, further comprising:
and the second motor is connected with the input end of the gear set.
3. The multi-gear transmission device of claim 2, wherein the gear set comprises a first gear, an intermediate shaft, a second gear and a third gear, the first gear is an input end of the gear set, the third gear is an output end of the gear set, the first gear is coaxially connected with one end of the intermediate shaft, the other end of the intermediate shaft is coaxially connected with the second gear, the second gear is meshed with the third gear, and the third gear is coaxially connected with the input shaft of the differential.
4. The multi-gear transmission device of claim 2, wherein the planet carrier is provided with a gear engaged with the first gear.
5. The multi-gear transmission device of claim 2, wherein a fourth gear is connected to the driving shaft of the second motor, and the fourth gear is meshed with the first gear.
6. The electric vehicle multi-speed transmission of any one of claims 1 to 5, wherein the electric vehicle multi-speed transmission is in a first gear when a brake engages the housing with the sun gear and a clutch disengages any two of the ring gear, the sun gear and the carrier.
7. The multi-gear transmission device of claim 6, wherein in the first gear, the transmission ratio from the first motor to the planet carrier is (i + 1)/i; wherein i is the transmission ratio of the planetary row.
8. The electric vehicle multi-speed transmission of any one of claims 1 to 5, wherein the electric vehicle multi-speed transmission is in second gear when a brake disengages the housing from the sun gear and a clutch engages any two of the ring gear, the sun gear, and the carrier.
9. The multi-speed transmission of claim 8, wherein the transmission ratio of the first electric machine to the carrier is 1 in the second speed.
10. An electric vehicle comprising the electric vehicle multi-speed transmission of any one of claims 1 to 9, and wheels connected to the differential via axle shafts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022457082.6U CN213534440U (en) | 2020-10-28 | 2020-10-28 | Electric automobile and multi-gear transmission device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022457082.6U CN213534440U (en) | 2020-10-28 | 2020-10-28 | Electric automobile and multi-gear transmission device thereof |
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| Publication Number | Publication Date |
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| CN213534440U true CN213534440U (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022457082.6U Active CN213534440U (en) | 2020-10-28 | 2020-10-28 | Electric automobile and multi-gear transmission device thereof |
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| CN (1) | CN213534440U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114435099A (en) * | 2022-01-20 | 2022-05-06 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Vehicle and electric drive system thereof |
-
2020
- 2020-10-28 CN CN202022457082.6U patent/CN213534440U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114435099A (en) * | 2022-01-20 | 2022-05-06 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Vehicle and electric drive system thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220106 Address after: 511434 No. 36, Longying Road, Shilou Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: GAC AION New Energy Vehicle Co.,Ltd. Address before: 23rd floor, Chengyue building, No. 448-458, Dongfeng Middle Road, Yuexiu District, Guangzhou City, Guangdong Province 510030 Patentee before: GUANGZHOU AUTOMOBILE GROUP Co.,Ltd. |