CN217401606U - Dual-motor direct drive system and vehicle - Google Patents
Dual-motor direct drive system and vehicle Download PDFInfo
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- CN217401606U CN217401606U CN202220482144.5U CN202220482144U CN217401606U CN 217401606 U CN217401606 U CN 217401606U CN 202220482144 U CN202220482144 U CN 202220482144U CN 217401606 U CN217401606 U CN 217401606U
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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
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Abstract
A dual motor direct drive system and a vehicle are provided herein. The double-motor direct drive system comprises two motors and two planetary reduction mechanisms, wherein the two motors are in one-to-one corresponding transmission connection with the two planetary reduction mechanisms; each planetary reduction mechanism comprises simple planetary rows, and each simple planetary row comprises: the gear ring is provided with an output part, and the output part is in transmission connection with the wheel; the sun gear is arranged in the gear ring and provided with an input end, and the input end is in transmission connection with the motor; the planet gear is meshed between the gear ring and the sun gear; and the planet carrier is fixedly arranged on the planet wheel. The double-motor direct-drive system has small occupied space and light weight, and can realize the functions of differential, differential lock, vector control and the like although a differential mechanism and a vector control mechanism are not arranged; in addition, a single motor drives a single wheel, the performance requirement on the single motor is reduced, and the purpose of high-power output can be achieved through two motors with lower power.
Description
Technical Field
The present disclosure relates to vehicle technology, and more particularly, to a dual-motor direct drive system and a vehicle.
Background
At present, most of pure electric vehicles adopt a single-motor scheme (the single-motor scheme is that the pure electric vehicle comprises a single-motor front drive axle or a single-motor rear drive axle) or a front-rear double-motor scheme (the front-rear double-motor scheme is that the pure electric vehicle comprises a single-motor front drive axle and a single-motor rear drive axle). In the two schemes, the single motor is in transmission connection with the two wheels, so that the performance requirement on the single motor is higher; in addition, in order to realize differential speed, differential lock and vector control, the motor needs to be provided with a differential mechanism (the differential mechanism comprises a differential mechanism and the differential lock) and a vector control mechanism and the like, so that the occupied space is large and the weight is heavy.
SUMMERY OF THE UTILITY MODEL
The application provides a two motor direct drive systems, its occupation space is little, and weight is little, and is low to the performance requirement of single motor, still possesses functions such as differential, differential lock and vector control.
The present application further provides a vehicle.
The embodiment of the utility model provides a double-motor direct drive system, including two motors and two planetary reduction gears, two motors and two planetary reduction gears one-to-one transmission connection; each of said planetary reduction mechanisms comprises simple planetary rows, each of said simple planetary rows comprising: the gear ring is provided with an output part, and the output part is used for being in transmission connection with wheels; the sun gear is arranged in the gear ring and provided with an input end, and the input end is in transmission connection with the motor; the planet gear is meshed between the gear ring and the sun gear; and the planet carrier is fixedly arranged and is arranged on the planet wheel.
In an exemplary embodiment, the two motors, the two input ends and the two planetary carriers are located on two sides of the two sun gears, the gear ring is provided with a bottom wall, the two bottom walls are located between the two sun gears, and the output portion sequentially penetrates through the sun gears, the input ends and the motors to be in transmission connection with the wheels.
In an exemplary embodiment, the output part is a rotating shaft, the input end is a rotating sleeve, and the motor is an annular motor.
In an exemplary embodiment, the two motors, the two input ends, and the two planetary carriers are located between the two sun gears, the ring gear is provided with a bottom wall, the two bottom walls are located on two sides of the two sun gears, and the output portion is located on one side, facing away from the sun gears, of the bottom wall.
In an exemplary embodiment, each of the planetary reduction mechanisms further includes: the gear reduction structure is provided with an input part and an output end, the gear reduction structure is located on one side, facing away from the sun gear, of the bottom wall, the output part is in transmission connection with the input part, and the output end is used for being in transmission connection with the wheels.
In an exemplary embodiment, the gear reduction structure includes: the input part is arranged on the driving wheel; and the driven wheel is meshed with the driving wheel, and the output end is arranged on the driven wheel.
In an exemplary embodiment, the dual-motor direct drive system further comprises: and the two wheels are positioned on two sides of the two planetary speed reducing mechanisms.
In an exemplary embodiment, two of the motors are symmetrically disposed, and two of the wheels are symmetrically disposed.
The embodiment of the utility model provides a vehicle, including above-mentioned arbitrary embodiment the two motor direct drive systems.
In an exemplary embodiment, the vehicle is an electric vehicle.
Compared with the prior art, the double-motor direct-drive system provided by the embodiment of the utility model comprises two motors and two planetary reduction mechanisms which are in one-to-one transmission connection, a planetary row of each planetary reduction mechanism is provided with an output part, the output part is used for being in transmission connection with a wheel, a sun wheel is arranged in the gear ring, the sun wheel is provided with an input end, the input end is in transmission connection with the motors, a planetary wheel is meshed between the gear ring and the sun wheel, the planetary carrier is fixedly arranged and is in transmission connection with the planetary wheel, the motors run to drive the sun wheel to rotate through the input end, the sun wheel drives the planetary wheel to rotate, the planetary wheel drives the gear ring to rotate, the gear ring drives the wheel to rotate through the output part, and the double-motor direct-drive system, the differential lock has the advantages that the occupied space is small, the weight is small, and the functions of differential, differential lock, vector control and the like can be realized even though the differential mechanism and the vector control mechanism are not arranged; in addition, a single motor drives a single wheel, the performance requirement on the single motor is reduced, and the purpose of high-power output can be achieved through two motors with lower power.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. Other advantages of the present application may be realized and attained by the instrumentalities and combinations particularly pointed out in the specification and the drawings.
Drawings
The accompanying drawings are included to provide an understanding of the present disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the examples serve to explain the principles of the disclosure and not to limit the disclosure.
Fig. 1 is a schematic structural view of a dual-motor direct drive system according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a dual-motor direct drive system according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a dual-motor direct drive system according to another embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 3 is:
100 motor, 210 ring gear, 211 output part, 212 bottom wall, 220 sun gear, 221 input end, 230 planet gear, 240 planet carrier, 410 driving gear, 411 input part, 420 driven gear and 421 output end.
Detailed Description
The present embodiments are described herein, but are intended to be illustrative and not restrictive, and the objects, features and advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The embodiment of the utility model provides a double-motor direct drive system, as shown in fig. 1 to fig. 3, comprises two motors 100 and two planetary reduction mechanisms, wherein the two motors 100 and the two planetary reduction mechanisms are in one-to-one transmission connection; each planetary reduction mechanism comprises simple planetary rows, and each simple planetary row comprises: the gear ring 210, the gear ring 210 is provided with an output part 211, and the output part 211 is used for being in transmission connection with wheels; the sun gear 220 is arranged in the gear ring 210, the sun gear 220 is provided with an input end 221, and the input end 221 is in transmission connection with the motor 100; a planetary gear 230 engaged between the ring gear 210 and the sun gear 220; and a fixed planet carrier 240 (e.g., the planet carrier 240 is fixed to a stationary member such as a housing, and the planet carrier 240 is fixed so as not to rotate), which is disposed on the planet wheel 230 (i.e., the planet carrier 240 is connected with the planet wheel 230).
According to the double-motor direct drive system, the motor 100 runs to drive the sun gear 220 to rotate through the input end 221, the sun gear 220 drives the planet gears 230 to rotate, the planet gears 230 drive the gear ring 210 to rotate, and the gear ring 210 drives the wheels to rotate through the output part 211, so that the double-motor direct drive system is small in occupied space and light in weight, and can realize functions such as differential speed, differential lock and vector control even though a differential mechanism and a vector control mechanism are not equipped; in addition, a single motor 100 drives a single wheel, the performance requirement for the single motor 100 is reduced, and the purpose of high power output can be achieved by two motors 100 with lower power.
The output power of the two output parts 211 is changed by independently controlling the two motors 100, so that the functions of differential speed, differential lock, vector control and the like are realized, and the control is more accurate.
In one example, each set of planets 230 includes a plurality.
In an exemplary embodiment, as shown in fig. 1, two motors 100, two input terminals 221, and two planetary carriers 240 are located on both sides of two sun gears 220, and the ring gear 210 is provided with a bottom wall 212, and the two bottom walls 212 are located between the two sun gears 220. For each planetary reduction mechanism: the output part 211 sequentially passes through the sun gear 220, the input end 221 and the motor 100 to be in transmission connection with the wheels, so that the output part 211 drives the wheels to rotate. Namely: the motor 100 operates to drive the sun gear 220 to rotate through the input end 221, the sun gear 220 drives the planet gears 230 to rotate, the planet gears 230 drive the gear ring 210 to rotate, and the gear ring 210 drives the wheels to rotate through the output part 211. The planetary speed reducing mechanism has the advantages of simple and compact structure, small occupied space and light weight.
In one example, as shown in fig. 1, the output portion 211 is a rotating shaft, and the rotating shaft is installed in a center hole of the bottom wall 212. The input end 221 is a rotating sleeve (i.e., a hollow shaft) which is installed in a central shaft hole of the sun gear 220. Motor 100 is an annular motor that is mounted on a rotating sleeve.
In another exemplary embodiment, as shown in fig. 2 and 3, the two motors 100, the two input ends 221, and the two planetary carriers 240 are located between the two sun gears 220, the ring gear 210 is provided with a bottom wall 212, the two bottom walls 212 are located on two sides of the two sun gears 220, the output portion 211 is located on one side of the bottom wall 212, which faces away from the sun gears 220, and the wheels are in transmission connection with the output portion 211, so that the output portion 211 drives the wheels to rotate. Namely: the motor 100 operates to drive the sun gear 220 to rotate through the input end 221, the sun gear 220 drives the planet gears 230 to rotate, the planet gears 230 drive the ring gear 210 to rotate, and the ring gear 210 drives the wheels to rotate through the output part 211. The planetary speed reducing mechanism has the advantages of simple and compact structure, small occupied space and light weight.
In one example, as shown in fig. 3, each planetary reduction mechanism further includes: the gear reduction structure is provided with an input part 411 and an output end 421, the gear reduction structure is located on one side, back to the sun gear 220, of the bottom wall 212, the output part 211 is in transmission connection with the input part 411, and the output end 421 is used for being in transmission connection with a wheel. This scheme carries out the second grade through gear reduction structure and slows down, and planetary reduction mechanism's speed reduction effect is better.
In one example, as shown in fig. 3, the gear reduction structure includes: the driving wheel 410, the input part 411 is arranged on the driving wheel 410; and a driven wheel 420 engaged with the driving wheel 410, and an output end 421 provided on the driven wheel 420. The gear speed reducing structure has the advantages of mature process, stable performance, good use effect and low manufacturing cost.
In an exemplary embodiment, the dual motor direct drive system further includes: two wheels (not shown) are located on both sides of the two planetary reduction mechanisms. Wherein, two motors 100 are symmetrically arranged, and two wheels are also symmetrically arranged, which is more beneficial to the layout on the vehicle.
The embodiment of the utility model provides a vehicle (not shown in the figure), including two motor direct drive systems of above-mentioned arbitrary embodiment.
The vehicle has all the advantages of the dual-motor direct drive system provided by any one of the above embodiments, and details are not repeated herein.
In one example, the vehicle is an electric vehicle, the electric vehicle is a pure electric vehicle, and the electric vehicle is provided with one set or two sets of double-motor direct-drive systems.
To sum up, the embodiment of the utility model provides a double-motor direct drive system, the motor operation drives the sun gear through the input and rotates, and sun gear drive planet wheel rotates, and planet wheel drive ring gear rotates, and the ring gear drives the wheel through the output and rotates, and this double-motor direct drive system, its occupation space is little, weight is little, though not being equipped with differential mechanism and vector control mechanism, still can realize functions such as differential, differential lock and vector control; in addition, a single motor drives a single wheel, the performance requirement on the single motor is reduced, and the purpose of high-power output can be achieved through two motors with lower power.
In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "mouth" word structure "and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the structure referred to has a specific direction, is constructed and operated in a specific direction, and thus, cannot be construed as limiting the present invention.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," and "mounted" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, or may be connected through 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.
Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A double-motor direct drive system is characterized by comprising two motors and two planetary reduction mechanisms, wherein the two motors and the two planetary reduction mechanisms are in one-to-one corresponding transmission connection; each of said planetary reduction mechanisms comprises simple planetary rows, each of said simple planetary rows comprising:
the gear ring is provided with an output part, and the output part is used for being in transmission connection with wheels;
the sun gear is arranged in the gear ring and provided with an input end, and the input end is in transmission connection with the motor;
the planet gear is meshed between the gear ring and the sun gear; and
the planet carrier is fixedly arranged on the planet wheel.
2. The dual-motor direct drive system as recited in claim 1, wherein the two motors, the two input ends and the two planetary carriers are located on two sides of the two sun gears, the ring gear is provided with a bottom wall, the two bottom walls are located between the two sun gears, and the output portion sequentially penetrates through the sun gears, the input ends and the motors to be in transmission connection with the wheels.
3. The dual-motor direct drive system as claimed in claim 2, wherein the output part is a rotating shaft, the input end is a rotating sleeve, and the motor is an annular motor.
4. The dual-motor direct drive system as recited in claim 1, wherein the two motors, the two input ends and the two planetary carriers are located between the two sun gears, the ring gear is provided with a bottom wall, the two bottom walls are located on two sides of the two sun gears, and the output portion is located on one side of the bottom wall, which faces away from the sun gears.
5. The dual motor direct drive system of claim 4, wherein each of the planetary reduction mechanisms further comprises:
the gear reduction structure is provided with an input part and an output end, the gear reduction structure is located on one side, facing away from the sun gear, of the bottom wall, the output part is in transmission connection with the input part, and the output end is used for being in transmission connection with the wheels.
6. The dual motor direct drive system of claim 5, wherein the gear reduction structure comprises:
the input part is arranged on the driving wheel; and
the driven wheel is meshed with the driving wheel, and the output end of the driven wheel is arranged on the driven wheel.
7. The dual-motor direct drive system as recited in any one of claims 1 to 6, further comprising:
and the two wheels are positioned on two sides of the two planetary speed reducing mechanisms.
8. The dual-motor direct drive system as recited in claim 7, wherein two motors are symmetrically arranged and two wheels are symmetrically arranged.
9. A vehicle characterized by comprising a dual motor direct drive system as claimed in any one of claims 1 to 8.
10. The vehicle of claim 9, characterized in that the vehicle is an electric automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220482144.5U CN217401606U (en) | 2022-03-07 | 2022-03-07 | Dual-motor direct drive system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220482144.5U CN217401606U (en) | 2022-03-07 | 2022-03-07 | Dual-motor direct drive system and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN217401606U true CN217401606U (en) | 2022-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220482144.5U Active CN217401606U (en) | 2022-03-07 | 2022-03-07 | Dual-motor direct drive system and vehicle |
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| CN (1) | CN217401606U (en) |
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- 2022-03-07 CN CN202220482144.5U patent/CN217401606U/en active Active
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| TR01 | Transfer of patent right |
Effective date of registration: 20240619 Address after: No. 99, Beihui Road, Huishan Industrial Transformation Cluster, Wuxi City, Jiangsu Province, 214181 Patentee after: Wuxi Xingqu Technology Co.,Ltd. Country or region after: China Address before: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Country or region before: China Patentee before: Wuxi Xingqu Technology Co.,Ltd. |