CN215850710U - Coaxial integrated double-motor double-speed-ratio electric drive assembly and electric vehicle - Google Patents
Coaxial integrated double-motor double-speed-ratio electric drive assembly and electric vehicle Download PDFInfo
- Publication number
- CN215850710U CN215850710U CN202122042492.9U CN202122042492U CN215850710U CN 215850710 U CN215850710 U CN 215850710U CN 202122042492 U CN202122042492 U CN 202122042492U CN 215850710 U CN215850710 U CN 215850710U
- Authority
- CN
- China
- Prior art keywords
- speed
- ratio
- motor
- drive assembly
- input shaft
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Structure Of Transmissions (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to the technical field of electric vehicles, and discloses a coaxial integrated double-motor double-speed-ratio electric drive assembly and an electric vehicle. The coaxial integrated double-motor double-speed-ratio electric drive assembly comprises a first drive motor, a second drive motor, a first speed-ratio speed reduction mechanism, a second speed-ratio speed reduction mechanism and an intermediate shaft, wherein the first drive motor and the second drive motor are both positioned on the same side of the first speed-ratio speed reduction mechanism and the second speed-ratio speed reduction mechanism, the first drive motor and the second drive motor can be driven independently, the first speed-ratio speed reduction mechanism comprises a first speed-ratio driving gear, a first speed-ratio driven gear and a one-way clutch, and the first speed-ratio driving gear is meshed with the first speed-ratio driven gear. The coaxial integrated double-motor double-speed-ratio electric drive assembly disclosed by the utility model has a compact structure, can better give consideration to the requirements of the power performance and the economy of the whole vehicle, and has the characteristics of good comfort of the whole vehicle, simple structure, few parts and good reliability of the electric drive assembly.
Description
Technical Field
The utility model relates to the technical field of electric vehicles, in particular to a coaxial integrated double-motor double-speed-ratio electric drive assembly and an electric vehicle.
Background
At present, an existing new energy pure electric vehicle generally adopts an electric drive assembly structure with a single motor and a single speed ratio reducer, and in order to achieve faster starting and acceleration response, motor torque needs to be increased or the speed ratio of the reducer needs to be improved; in order to meet the requirements of high-speed stable and silent power output, the highest working rotating speed of a motor needs to be improved, and the gear machining and electric drive assembly precision is improved; in order to achieve higher comprehensive utilization efficiency of the electric drive assembly, the electric drive assembly needs to achieve high system efficiency in a wide rotating speed range. The electric drive assembly of the single-motor single-speed-ratio speed reducer is difficult to be considered, and meanwhile, the cost of the electric drive assembly is greatly increased due to the large motor torque and the high manufacturing precision, so that the requirements of users cannot be completely met.
Therefore, a need exists for a coaxial integrated dual motor dual speed ratio electric drive assembly that addresses the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
Based on the above, the utility model aims to provide a coaxial integrated dual-motor dual-speed-ratio electric drive assembly and an electric vehicle, which can better meet the requirements of the power performance and the economy of the whole vehicle, have a simple structure, have no power interruption and impact of dual-speed-ratio gear shifting or mode switching, have better comfort of the whole vehicle, have fewer parts, are easy to process and manufacture, and have low assembly cost.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a coaxial integrated double-motor double-speed-ratio electric drive assembly comprises a first drive motor, a second drive motor, a first speed-ratio speed reduction mechanism, a second speed-ratio speed reduction mechanism and an intermediate shaft, wherein the first drive motor and the second drive motor are both positioned on the same side of the first speed-ratio speed reduction mechanism and the second speed-ratio speed reduction mechanism, and are coaxially arranged and can be independently driven; the second driving motor directly transmits power to the intermediate shaft through the second speed ratio reduction mechanism, the first speed ratio reduction mechanism comprises a first speed ratio driving gear, a first speed ratio driven gear and a one-way clutch, and the first speed ratio driving gear is meshed with the first speed ratio driven gear; the output end of the first driving motor is in coaxial transmission connection with the first speed ratio driving gear through the one-way clutch, and the first speed ratio driven gear is in transmission connection with the intermediate shaft; or the output end of the first driving motor is in coaxial transmission connection with the first speed ratio driving gear, and the first speed ratio driven gear is in transmission connection with the intermediate shaft through the one-way clutch.
As a preferred scheme of the coaxial integrated dual-motor dual-speed-ratio electric drive assembly, the second speed-ratio reduction mechanism comprises a second speed-ratio driving gear, a transition gear and a second speed-ratio driven gear, the second speed-ratio driving gear, the transition gear and the second speed-ratio driven gear are sequentially in transmission meshing, the second speed-ratio driving gear is coaxially connected with the output end of the second driving motor in a transmission manner, and the transition gear is in transmission connection with the intermediate shaft.
As a preferable scheme of the coaxial integrated dual-motor dual-speed-ratio electric drive assembly, the coaxial integrated dual-motor dual-speed-ratio electric drive assembly further comprises a differential assembly, and a shell of the differential assembly is fixedly connected with the second-speed-ratio driven gear.
As a preferable scheme of the coaxial integrated dual-motor dual-speed-ratio electric drive assembly, the coaxial integrated dual-motor dual-speed-ratio electric drive assembly further comprises a primary input shaft and a secondary input shaft, an output end of the first driving motor is in splined connection with the primary input shaft, and an output end of the second driving motor is in splined connection with the secondary input shaft.
As a preferable scheme of the coaxial integrated dual-motor dual-speed-ratio electric drive assembly, the primary input shaft is a first hollow shaft and is coaxially arranged with the secondary input shaft, and the secondary input shaft penetrates through the first hollow shaft and is rotatably connected with the first hollow shaft through a first bearing.
As a preferred scheme of the coaxial integrated dual-motor dual-speed-ratio electric drive assembly, the secondary input shaft is a second hollow shaft and is coaxially arranged with the primary input shaft, and the primary input shaft penetrates through the second hollow shaft and is rotatably connected with the second hollow shaft through a second bearing.
As a preferable scheme of the coaxial integrated dual-motor dual-speed-ratio electric drive assembly, the first speed-ratio driving gear is coaxially and fixedly connected with the primary input shaft, and the second speed-ratio driving gear is coaxially and fixedly connected with the secondary input shaft.
As a preferable scheme of the coaxial integrated dual-motor dual-speed-ratio electric drive assembly, the first speed-ratio speed reduction mechanism and the second speed-ratio speed reduction mechanism are arranged in parallel, and the intermediate shaft is arranged in parallel with the secondary input shaft.
As a preferred scheme of a coaxial integrated double-motor double-speed-ratio electric drive assembly, the one-way clutch comprises an inner ring and an outer ring, the inner ring is fixedly connected with the intermediate shaft, and the outer ring is fixedly connected with the first-speed-ratio driven gear; or the inner ring is fixedly connected with the output end of the first driving motor, and the outer ring is fixedly connected with the first speed ratio driving gear.
An electric vehicle comprising the coaxial integrated dual-motor dual-speed-ratio electric drive assembly of any of the above aspects.
The utility model has the beneficial effects that: the first driving motor and the second driving motor of the coaxial integrated double-motor double-speed-ratio electric driving assembly are coaxially arranged on the same side, the integration level is high, the structure is compact, at least one of the first driving motor and the second driving motor can be selected to drive according to specific driving requirements, and the requirements of the power performance and the economy of the whole vehicle can be better met; the second driving motor directly transmits power to the intermediate shaft through the second speed ratio reducing mechanism, the first driving motor of the first speed ratio reducing mechanism directly transmits power to the intermediate shaft through the first speed ratio reducing mechanism and the one-way clutch, transmission connection and disconnection between the first driving motor and the intermediate shaft are mechanically realized, a gear shifting control mechanism and an additional control unit are not needed, power interruption and impact of double-speed ratio gear shifting or mode switching are avoided, and the whole vehicle is good in comfort; meanwhile, the coaxial integrated double-motor double-speed-ratio electric drive assembly has the characteristics of simple structure, few parts and good reliability.
According to the electric automobile provided by the utility model, by applying the coaxial double-motor double-speed-ratio electric drive assembly, the electric automobile has the characteristics of good whole automobile comfort, simplicity and convenience in operation and low cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a schematic diagram of a coaxial integrated dual motor dual speed ratio electric drive assembly according to one embodiment of the present invention;
FIG. 2 is a schematic diagram of a coaxial integrated dual motor dual speed ratio electric drive assembly according to a second embodiment of the present invention;
fig. 3 is a schematic diagram of a coaxial integrated dual-motor dual-speed-ratio electric driving assembly according to a third embodiment of the present invention.
In the figure:
1. a first drive motor;
2. a second drive motor;
3. a first speed-ratio reduction mechanism; 31. a first speed ratio drive gear; 32. a first speed ratio driven gear; 33. a one-way clutch;
4. a second-speed-ratio reduction mechanism; 41. a second ratio drive gear; 42. a transition gear; 43. a second-speed ratio driven gear;
5. a primary input shaft;
6. a secondary input shaft;
7. an intermediate shaft;
8. a differential assembly;
9. a left half shaft;
10. and a right half shaft.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
The embodiment provides a coaxial integrated dual-motor dual-speed-ratio electric drive assembly for an electric vehicle, as shown in fig. 1, the assembly comprises a first drive motor 1, a second drive motor 2, a first speed-ratio reduction mechanism 3, a second speed-ratio reduction mechanism 4 and an intermediate shaft 7, wherein the first drive motor 1, the second drive motor 2, the second speed-ratio reduction mechanism 4 and the first speed-ratio reduction mechanism 3 are sequentially arranged, the first drive motor 1 and the second drive motor 2 are both located on the same side of the first speed-ratio reduction mechanism 3 and the second speed-ratio reduction mechanism 4, and the first drive motor 1 and the second drive motor 2 are coaxially arranged and can be independently driven; the second driving motor 2 directly transmits power to the intermediate shaft 7 through the second speed ratio reducing mechanism 4, the first speed ratio reducing mechanism 3 comprises a first speed ratio driving gear 31, a first speed ratio driven gear 32 and a one-way clutch 33, and the first speed ratio driving gear 31 is meshed with the first speed ratio driven gear 32; the output end of the first driving motor 1 is coaxially connected with a first speed ratio driving gear 31 in a transmission way, and a first speed ratio driven gear 32 is connected with the intermediate shaft 7 in a transmission way through a one-way clutch 33.
The first driving motor 1 forms a first speed ratio through the first speed ratio reducing mechanism 3; the second driving motor 2 forms a second speed ratio through a second speed ratio reducing mechanism 4; through the cooperation of the first driving motor 1, the second driving motor 2, the first speed ratio speed reducing mechanism 3 and the second speed ratio speed reducing mechanism 4, multiple working modes such as double-motor combined driving, single-motor efficient driving and single-motor efficient braking energy recovery can be realized, and the requirements of the whole vehicle on dynamic property and economy under different working conditions are met.
The first driving motor 1 and the second driving motor 2 of the coaxial integrated dual-motor dual-speed-ratio electric driving assembly provided by the embodiment are coaxially mounted on the same side, the integration level is high, the structure is compact, at least one of the first driving motor 1 and the second driving motor 2 can be selected to drive according to specific driving requirements, and the requirements of the power performance and the economy of the whole vehicle can be better met; the second driving motor 2 directly transmits power to the intermediate shaft 7 through the second speed ratio reducing mechanism 4, the first driving motor 1 of the first speed ratio reducing mechanism 3 directly transmits power to the intermediate shaft 7 through the first speed ratio reducing mechanism 3 and the one-way clutch 33, transmission connection and disconnection between the first driving motor 1 and the intermediate shaft 7 are mechanically realized, a gear shifting control mechanism and an additional control unit are not needed, power interruption and impact of double-speed ratio gear shifting or mode switching are avoided, and the whole vehicle is good in comfort; meanwhile, the coaxial integrated double-motor double-speed-ratio electric drive assembly has the characteristics of simple structure, few parts and good reliability.
The one-way clutch 33 of the present embodiment includes an inner race fixedly connected to the intermediate shaft 7 and an outer race fixedly connected to the first speed ratio driven gear 32. Specifically, the outer ring of the one-way clutch 33 is coaxially press-fitted into the first-speed-ratio driven gear 32, and the inner ring of the one-way clutch 33 is coaxially press-fitted onto the intermediate shaft 7, thereby realizing one-way transmission from the first drive motor 1 to the intermediate shaft 7.
Specifically, as shown in fig. 1, the second-speed-ratio reduction mechanism 4 of the present embodiment includes a second-speed-ratio driving gear 41, a transition gear 42, and a second-speed-ratio driven gear 43, which are sequentially engaged with each other in a transmission manner, wherein the second-speed-ratio driving gear 41 is coaxially connected to the output end of the second driving motor 2 in a transmission manner, and the transition gear 42 is connected to the intermediate shaft 7 in a transmission manner.
The coaxial integrated dual-motor dual-speed-ratio electric drive assembly further comprises a differential assembly 8, and a second-speed-ratio driven gear 43 is fixedly connected with a shell of the differential assembly 8. The coaxial integrated double-motor double-speed-ratio electric drive assembly further comprises a left half shaft 9 and a right half shaft 10, and two ends of the differential assembly 8 are respectively connected with the left half shaft 9 and the right half shaft 10 of the whole vehicle through splines to transmit the torque of the driving motor to wheels to drive the whole vehicle to run.
The coaxial integrated double-motor double-speed-ratio electric drive assembly further comprises a primary input shaft 5 and a secondary input shaft 6, the output end of the first driving motor 1 is in splined connection with the primary input shaft 5, and the output end of the second driving motor 2 is in splined connection with the secondary input shaft 6. Specifically, the secondary input shaft 6 of the present embodiment is a second hollow shaft and is coaxially disposed with the primary input shaft 5, the primary input shaft 5 penetrates through the second hollow shaft and is rotatably connected to the second hollow shaft through a second bearing, and the second bearing plays a role in supporting the secondary input shaft 6.
The first driving motor 1 and the second driving motor 2 are coaxially installed on the same side, and the integration level of the structures such as double-motor cooling, high-low voltage connection, shell support and the like is high; the coaxial integrated double-motor double-speed-ratio electric drive assembly has two transmission speed ratios by the meshing of two primary gears and two secondary triple gears, and is small in axial size, compact in structure and convenient and fast in whole vehicle arrangement; meanwhile, the number of parts is small, the processing and the manufacturing are easy, and the system cost is low.
The first driving motor 1 of this embodiment includes first motor stator and first electric motor rotor, and first electric motor rotor passes through the spline and is connected with one-level input shaft 5, and second driving motor 2 includes second motor stator and second electric motor rotor, and second electric motor rotor includes second electric motor rotor axle again, and second electric motor rotor axle and 6 body designs of second grade input shaft.
The first speed ratio driving gear 31 of the present embodiment is coaxially and fixedly connected to the primary input shaft 5, so that the first speed ratio driving gear 31 and the primary input shaft 5 rotate synchronously, and the second speed ratio driving gear 41 is coaxially and fixedly connected to the secondary input shaft 6, so that the second speed ratio driving gear 41 and the secondary input shaft 6 rotate coaxially and synchronously.
Preferably, the first speed ratio speed reducing mechanism 3 and the second speed ratio speed reducing mechanism 4 are arranged in parallel, and the intermediate shaft 7 and the secondary input shaft 6 are arranged in parallel, so that the overall structure of the assembly is more compact, and the whole vehicle arrangement is convenient.
The coaxial integrated double-motor double-speed-ratio electric drive assembly improves the torque of the motor and the flexibility of matching a high-efficiency area with a transmission speed ratio by combining the double motors, the double speed ratios and the one-way clutch 33, reduces the loss of a non-working motor in the follow-up rotation process, can realize multiple working modes of double-motor combined drive, single-motor high-efficiency braking energy recovery and the like, meets the dynamic requirements of the whole vehicle under different working conditions, and can realize higher comprehensive use efficiency of electric drive; moreover, power interruption and impact generated by double-speed ratio gear shifting or mode switching are avoided, and the whole vehicle comfort is good; the electric drive assembly has the characteristics of small axial size, compact structure, easiness in processing and manufacturing parts, good reliability, convenience in arrangement of the whole vehicle, low cost of the electric drive assembly and the like.
For convenience of understanding, the working principle of the coaxial integrated dual-motor dual-speed-ratio electric driving assembly provided by the embodiment is as follows:
when the vehicle is in low-speed large load or rapid acceleration, the first driving motor 1 and the second driving motor 2 are driven in a combined mode, and the output torque of the first driving motor 1 is transmitted to the intermediate shaft 7 through the primary input shaft 5, the first-speed-ratio driving gear 31, the first-speed-ratio driven gear 32 and the one-way clutch 33; the output torque of the second driving motor 2 is transmitted to the intermediate shaft 7 through the secondary input shaft 6, the second speed ratio driving gear 41 and the transition gear 42; the torques output by the first driving motor 1 and the second driving motor 2 are converged on the intermediate shaft 7, and then transmitted to the differential assembly 8 through the transition gear 42 and the second-speed driven gear 43, and further transmitted to the wheels through the left half shaft 9 and the right half shaft 10 at both ends of the differential assembly 8. Through the combination of the first driving motor 1 and the first speed ratio speed reducing mechanism 3 and the second driving motor 2 and the second speed ratio speed reducing mechanism 4, larger output torque and quick acceleration response are provided for the whole vehicle.
When the vehicle is in medium-high speed cruising or small-load operation, the second driving motor 2 is driven independently, the output torque is transmitted to the differential assembly 8 through the secondary input shaft 6, the second speed ratio driving gear 41, the transition gear 42 and the second speed ratio driven gear 43, and then is transmitted to the wheels through the left half shaft 9 and the right half shaft 10 at the two ends of the differential assembly 8; the first driving motor 1 stops, the intermediate shaft 7 drives the inner ring of the one-way clutch 33 to rotate, and the outer ring of the one-way clutch 33 and the first speed ratio driven gear 32 do not rotate along with the intermediate shaft 7, so that the follow-up loss of the first driving motor 1 and the mechanical loss of the first speed ratio speed reducing mechanism 3 can be reduced; meanwhile, the high-efficiency area using working conditions matched with the second driving motor 2 and the second speed ratio speed reducing mechanism 4 are relatively gathered, and the comprehensive using efficiency of the electric drive assembly is better ensured to be improved.
During deceleration or braking, the braking energy of the whole vehicle is transmitted to the differential assembly 8 through the wheels, the left half shaft 9 and the right half shaft 10, and then transmitted to the second-speed-ratio driven gear 43 and the transition gear 42 to the intermediate shaft 7 through the differential assembly 8; at this time, the first driving motor 1 is stopped, the intermediate shaft 7 drives the inner ring of the one-way clutch 33 to rotate, and the outer ring of the one-way clutch 33 and the first speed ratio driven gear 32 do not rotate along with the intermediate shaft 7; the whole braking energy of the whole vehicle is dragged by the second driving motor 2 to generate electricity through the transition gear 42 on the intermediate shaft 7 and the second-speed-ratio driving gear 41, so that the high-efficiency recovery of the braking energy is realized.
The present embodiments also provide an electric vehicle including the coaxial integrated dual-motor dual-speed-ratio electric drive assembly of the present embodiments.
The electric automobile that this embodiment provided, through using above-mentioned coaxial bi-motor double-speed-ratio electric drive assembly, this electric automobile has that whole car travelling comfort is good, control simple convenient and with low costs characteristics.
Example two
As shown in fig. 2, the present embodiment is different from the first embodiment in that the mounting position of the one-way clutch 33 is different, the first speed ratio driven gear 32 is fixedly connected with the intermediate shaft 7, the outer ring of the one-way clutch 33 is coaxially press-fitted into the first speed ratio driving gear 31, and the inner ring of the one-way clutch 33 is press-fitted onto the primary input shaft 5; the first speed ratio driving gear 31 can realize unidirectional rotation on the primary input shaft 5 through the one-way clutch 33, and the first speed ratio driven gear 32 is in transmission connection with the intermediate shaft 7. The connection structure of other components, the working principle of the coaxial integrated dual-motor dual-speed-ratio electric drive assembly and the electric vehicle are the same as those of the first embodiment, and are not described herein again.
EXAMPLE III
As shown in fig. 3, the difference between the first embodiment and the first embodiment is that the first-stage input shaft 5 of the present embodiment is a first hollow shaft and is coaxially disposed with the second-stage input shaft 6, the second-stage input shaft 6 penetrates through the first hollow shaft and is rotatably connected to the first hollow shaft through a first bearing, and the first bearing plays a role of supporting the second-stage input shaft 6, and at this time, the second driving motor 2, the first driving motor 1, the first speed reduction mechanism 3, and the second speed reduction mechanism 4 are sequentially arranged. The connection structure of other components, the working principle of the coaxial integrated dual-motor dual-speed-ratio electric drive assembly and the electric vehicle are the same as those of the first embodiment, and are not described herein again.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (8)
1. A coaxial integrated double-motor double-speed-ratio electric drive assembly is characterized by comprising a first drive motor (1), a second drive motor (2), a first speed-ratio speed reducing mechanism (3), a second speed-ratio speed reducing mechanism (4) and a middle shaft (7), wherein the first drive motor (1) and the second drive motor (2) are both positioned on the same side of the first speed-ratio speed reducing mechanism (3) and the second speed-ratio speed reducing mechanism (4), and the first drive motor (1) and the second drive motor (2) are coaxially arranged and can be independently driven; the second driving motor (2) directly transmits power to the intermediate shaft (7) through the second speed ratio reduction mechanism (4), the first speed ratio reduction mechanism (3) comprises a first speed ratio driving gear (31), a first speed ratio driven gear (32) and a one-way clutch (33), and the first speed ratio driving gear (31) is meshed with the first speed ratio driven gear (32);
the output end of the first driving motor (1) is in coaxial transmission connection with the first speed ratio driving gear (31) through the one-way clutch (33), and the first speed ratio driven gear (32) is in transmission connection with the intermediate shaft (7); or the output end of the first driving motor (1) is coaxially connected with the first speed ratio driving gear (31) in a transmission way, and the first speed ratio driving gear (32) is connected with the intermediate shaft (7) in a transmission way through the one-way clutch (33);
the coaxial integrated double-motor double-speed-ratio electric drive assembly further comprises a primary input shaft (5) and a secondary input shaft (6), the output end of the first driving motor (1) is in splined connection with the primary input shaft (5), and the output end of the second driving motor (2) is in splined connection with the secondary input shaft (6);
the primary input shaft (5) is a first hollow shaft and is coaxially arranged with the secondary input shaft (6), and the secondary input shaft (6) penetrates through the first hollow shaft and is rotatably connected with the first hollow shaft through a first bearing.
2. The coaxial integrated dual-motor dual-speed-ratio electric drive assembly according to claim 1, wherein the second-speed-ratio speed reduction mechanism (4) comprises a second-speed-ratio driving gear (41), a transition gear (42) and a second-speed-ratio driven gear (43) which are in transmission engagement in sequence, the second-speed-ratio driving gear (41) is in coaxial transmission connection with the output end of the second drive motor (2), and the transition gear (42) is in transmission connection with the intermediate shaft (7).
3. The coaxially integrated dual-motor dual-speed-ratio electric drive assembly according to claim 2, further comprising a differential assembly (8), wherein a housing of the differential assembly (8) is fixedly connected to the second-speed-ratio driven gear (43).
4. The coaxially integrated dual-motor dual-speed-ratio electric drive assembly according to claim 1, wherein the secondary input shaft (6) is a second hollow shaft and is coaxially disposed with the primary input shaft (5), and the primary input shaft (5) penetrates through the second hollow shaft and is rotatably connected with the second hollow shaft through a second bearing.
5. The coaxially integrated dual-motor dual-speed-ratio electric drive assembly according to claim 2, wherein the first-speed-ratio driving gear (31) is coaxially and fixedly connected with the primary input shaft (5), and the second-speed-ratio driving gear (41) is coaxially and fixedly connected with the secondary input shaft (6).
6. The coaxially integrated dual-motor dual-speed-ratio electric drive assembly according to claim 1, wherein the first-speed-ratio reduction mechanism (3) and the second-speed-ratio reduction mechanism (4) are arranged in parallel, and the intermediate shaft (7) is arranged in parallel with the secondary input shaft (6).
7. The coaxial integrated dual-motor dual-speed-ratio electric drive assembly according to claim 1, wherein the one-way clutch (33) comprises an inner race fixedly connected with the intermediate shaft (7) and an outer race fixedly connected with the first-speed-ratio driven gear (32); or the inner ring is fixedly connected with the output end of the first driving motor (1), and the outer ring is fixedly connected with the first speed ratio driving gear (31).
8. An electric vehicle comprising the coaxial integrated dual motor dual speed ratio electric drive assembly of any of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122042492.9U CN215850710U (en) | 2021-08-27 | 2021-08-27 | Coaxial integrated double-motor double-speed-ratio electric drive assembly and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122042492.9U CN215850710U (en) | 2021-08-27 | 2021-08-27 | Coaxial integrated double-motor double-speed-ratio electric drive assembly and electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215850710U true CN215850710U (en) | 2022-02-18 |
Family
ID=80243289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122042492.9U Active CN215850710U (en) | 2021-08-27 | 2021-08-27 | Coaxial integrated double-motor double-speed-ratio electric drive assembly and electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215850710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114906552A (en) * | 2022-05-09 | 2022-08-16 | 金石机器人银川有限公司 | Electric rotating tray for feeding of horizontal machining center |
-
2021
- 2021-08-27 CN CN202122042492.9U patent/CN215850710U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114906552A (en) * | 2022-05-09 | 2022-08-16 | 金石机器人银川有限公司 | Electric rotating tray for feeding of horizontal machining center |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20230278409A1 (en) | Drive synthesis box with multi-motors flexible torque and electric vehicle | |
| WO2023284667A1 (en) | Electric drive assembly and electric vehicle | |
| CN215850710U (en) | Coaxial integrated double-motor double-speed-ratio electric drive assembly and electric vehicle | |
| CN110962572B (en) | Hybrid power driving system and vehicle | |
| CN113085519A (en) | Dual-motor electric automobile driving system | |
| CN113335047A (en) | Axial double-motor double-clutch double-speed-ratio electric vehicle power assembly and electric vehicle | |
| CN215257677U (en) | Coaxial double-motor inferior double-speed-ratio electric drive assembly and electric automobile | |
| CN116039364A (en) | Hybrid power system, control method of hybrid power system and vehicle | |
| CN215621354U (en) | Coaxial integrated double-motor extra-inferior double-speed-ratio electric drive assembly with disengagement function | |
| CN217863692U (en) | Compound power speed change device and electric vehicle | |
| CN216923142U (en) | Transmission and electric drive system and vehicle | |
| CN109624681B (en) | Double-motor power transmission system for electric automobile | |
| CN219115231U (en) | Hybrid power system and vehicle | |
| CN112392922A (en) | Transmission, integrated axle assembly and car | |
| CN215705629U (en) | Dual-motor dual-speed-ratio electric drive assembly device with disengagement function and electric automobile | |
| CN217145627U (en) | Double-motor electric drive axle | |
| CN217784134U (en) | Pure electric system and vehicle | |
| CN215474424U (en) | Dual-motor inferior dual-speed-ratio electric drive assembly with disengagement function and electric automobile | |
| CN220884050U (en) | Novel three-speed-ratio electric drive axle | |
| CN219115230U (en) | Hybrid power system and vehicle | |
| CN218112343U (en) | Double-motor double-planet row electric driving bridge | |
| CN217784133U (en) | Pure electric system and vehicle | |
| CN217753458U (en) | Transmission system and vehicle | |
| CN212737733U (en) | Variable speed ratio hybrid power input structure | |
| CN216033695U (en) | Power system of pure electric vehicle and automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |