CN215110363U - Motor drive structure, motor drive system and vehicle - Google Patents
Motor drive structure, motor drive system and vehicle Download PDFInfo
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- CN215110363U CN215110363U CN202121135496.5U CN202121135496U CN215110363U CN 215110363 U CN215110363 U CN 215110363U CN 202121135496 U CN202121135496 U CN 202121135496U CN 215110363 U CN215110363 U CN 215110363U
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Abstract
The utility model provides a motor driving structure, a motor driving system and a vehicle, which comprises a driving motor, a transmission shaft and a motor transmission unit; a plurality of driving motors are arranged, and output shafts of the driving motors are parallel to each other; the transmission shaft is suitable for being in transmission connection with a load; the motor drive unit is equipped with a plurality ofly, and with a plurality of driving motor one-to-one, and every motor drive unit all includes first action wheel, first from driving wheel and second from the driving wheel, and the coaxial rigid coupling of first action wheel is connected in driving motor's output shaft, and first from driving wheel is connected with first action wheel transmission, and the second is followed coaxial rigid coupling in first from the driving wheel, and the second is followed the driving wheel and is connected with the transmission shaft transmission. The utility model provides a motor drive structure, motor drive system and vehicle have realized the set of moment of torsion for motor drive structure's moment of torsion output can double promotion, and then can promote the power performance of vehicle, finally is favorable to promoting the acceleration of vehicle, performance such as climbing.
Description
Technical Field
The utility model belongs to the technical field of the vehicle spare part, concretely relates to motor drive structure, motor drive system and vehicle.
Background
With the development of economy and social progress, the problems of energy and environment are increasingly prominent, and the development of electric automobile technology becomes one of the important ways to solve the petroleum source and the environmental crisis. The core component of the pure electric vehicle is a driving motor which can convert electric energy into mechanical energy, output torque is transmitted to a speed reducer and then to a differential mechanism by the driving motor, and finally the torque is distributed to wheels on two sides to drive the vehicle to move forwards or backwards.
However, the power performance of the existing electric vehicle is always restricted, has a certain difference with a fuel vehicle, and is difficult to exert the superiority of the pure electric vehicle.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a motor drive structure, motor drive system and vehicle aims at promoting the moment of torsion that the motor drive structure can export, promotes the power performance of vehicle.
In order to achieve the above object, the utility model adopts the following technical scheme:
in a first aspect, there is provided a motor drive structure including:
a plurality of driving motors, output shafts of which are parallel to each other;
the transmission shaft is suitable for being in transmission connection with a load; and
a plurality of motor drive units, with a plurality of driving motor one-to-one, every motor drive unit all includes first action wheel, first from driving wheel and second from the driving wheel, the coaxial rigid coupling of first action wheel in driving motor's output shaft, first from the driving wheel with first action wheel transmission is connected, the second from the coaxial rigid coupling of driving wheel in first from the driving wheel, the second from the driving wheel with the transmission shaft transmission is connected.
With reference to the first aspect, in one possible implementation manner, the first driving wheel and the first driven wheel are both gears, and are engaged with each other.
With reference to the first aspect, in a possible implementation manner, a second driving wheel is coaxially and fixedly arranged at the driving end of the transmission shaft, and the second driven wheel and the second driving wheel are both bevel gears and are engaged with each other.
With reference to the first aspect, in a possible implementation manner, the first driven wheel and the second driven wheel are coaxially connected through a connecting shaft, an on-off module is disposed on the connecting shaft in at least one of the motor transmission units, and when the on-off module is in a closed state, the driving motor can provide power for the transmission shaft through the motor transmission unit.
In the embodiment of the application, through setting up the driving motor that a plurality of output shafts are parallel to each other, and then transmit different driving motor's moment of torsion for the transmission shaft jointly respectively through motor drive unit, realized the set of moment of torsion for the moment of torsion output of motor drive structure can rise by multiples, and then can promote the dynamic behavior of vehicle, finally is favorable to promoting the acceleration of vehicle, performance such as climbing.
In a second aspect, an embodiment of the present invention further provides a motor driving system, including a load, and the motor driving structure described above, wherein the transmission shaft in the motor driving structure is connected to the load in a transmission manner.
With reference to the second aspect, in one possible implementation manner, the load includes:
a drive shaft having two half shafts corresponding to each other;
the differential mechanism is arranged on one of the two half shafts, and the driven end of the transmission shaft is in transmission connection with the differential mechanism; and
and the differential lock is arranged on the other one of the two half shafts.
With reference to the second aspect, in one possible implementation manner, the differential includes:
the planet wheel carrier is coaxially and fixedly connected to one of the two half shafts;
the planetary gears are respectively connected with the planetary gear carrier in a rotating way; and
and the two half shaft gears are respectively and coaxially and fixedly connected to the opposite ends of the two half shafts, and each planetary gear is meshed with the two half shaft gears simultaneously.
With reference to the second aspect, in a possible implementation manner, a third driven wheel is coaxially and fixedly arranged at the driven end of the transmission shaft, and the third driven wheel and the planet carrier are both bevel gears and are engaged with each other.
With reference to the second aspect, in one possible implementation manner, the planetary gear is connected with the planetary carrier through a bent bracket.
The embodiment of the application provides a motor drive system, motor drive structure wherein is through setting up the driving motor that a plurality of output shafts are parallel to each other, and then transmits different driving motor's moment of torsion for the transmission shaft jointly respectively through motor drive unit, has realized the set of moment of torsion for motor drive structure's moment of torsion output can improve at double, and then can promote the dynamic behavior of vehicle, finally is favorable to promoting the acceleration of vehicle, performance such as climbing.
In a third aspect, an embodiment of the present invention further provides a vehicle, including the above-mentioned motor drive system.
The vehicle that this application embodiment provided, motor drive structure wherein is through setting up the driving motor that a plurality of output shafts are parallel to each other, and then transmits different driving motor's moment of torsion for the transmission shaft jointly respectively through the motor drive unit, has realized the set of moment of torsion for motor drive structure's moment of torsion output can rise doubly, and then can promote the dynamic behavior of vehicle, finally is favorable to promoting the acceleration of vehicle, performance such as climbing.
Drawings
Fig. 1 is a schematic structural diagram of a motor driving system according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a differential mechanism, a differential lock, a driving shaft and a transmission shaft according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a motor driving system according to an embodiment of the present invention.
Description of reference numerals:
1. a drive motor; 2. a drive shaft; 3. a motor transmission unit; 301. a first drive wheel; 302. a first driven wheel; 303. a second driven wheel; 304. a switching module; 305. a connecting shaft; 4. a load; 401. a drive shaft; 4011. a half shaft; 402. a differential mechanism; 4021. a planet carrier; 4022. a planetary gear; 4023. a half shaft gear; 4024. bending the bracket; 403. a differential lock; 5. a second drive wheel; 6. a third driven wheel; 7. and (7) wheels.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to fig. 3, a motor driving structure according to the present invention will now be described. The motor driving structure comprises a driving motor 1, a transmission shaft 2 and a motor transmission unit 3; a plurality of driving motors 1 are arranged, and output shafts of the driving motors 1 are parallel to each other; the transmission shaft 2 is suitable for being in transmission connection with a load 4; the motor transmission units 3 are provided with a plurality of motors, the motors correspond to the driving motors 1 one by one, each motor transmission unit 3 comprises a first driving wheel 301, a first driven wheel 302 and a second driven wheel 303, the first driving wheel 301 is coaxially and fixedly connected to an output shaft of the driving motor 1, the first driven wheel 302 is in transmission connection with the first driving wheel 301, the second driven wheel 303 is coaxially and fixedly connected to the first driven wheel 302, and the second driven wheel 303 is in transmission connection with the transmission shaft 2.
Compared with the prior art, the motor drive structure that this embodiment provided, through setting up the driving motor 1 that a plurality of output shafts are parallel to each other, and then transmit different driving motor 1's moment of torsion common for transmission shaft 2 respectively through motor drive unit 3, realized the set of moment of torsion for the torque output of motor drive structure can improve at double, and then can promote the dynamic behavior of vehicle, finally is favorable to promoting the acceleration of vehicle, performance such as climbing.
In addition, the motor transmission unit 3 adopted by the embodiment of the application has a simple structure and a speed regulation function, and a speed reducer is not required, so that the overall structure of the motor driving structure is further simplified, and the internal space of the engine room is conveniently and effectively utilized.
It should be noted that, since the plurality of driving motors 1 are disposed around the same transmission shaft 2, torque outputs between the plurality of driving motors 1 have a certain phase difference to provide the same driving force for steering the transmission shaft 2. For example, when two driving motors 1 are oppositely arranged, the torque output by the two driving motors 1 is in opposite directions; of course, the number of the driving motors 1 may be three, four, etc., which are not listed here.
In some embodiments, referring to fig. 3, the first driven wheel 302 and the second driven wheel 303 are coaxially connected through a connecting shaft 305, and an on-off module 304 is disposed on the connecting shaft 305 in at least one motor transmission unit 3, so that when the on-off module 304 is in a closed state, the driving motor 1 can provide power for the transmission shaft 2 through the motor transmission unit 3.
By arranging the on-off module 304, the working mode of the motor driving structure is increased, for example, on the premise that the motor driving structure comprises two driving motors 1 and only one motor transmission unit 3 is provided with the on-off module 304, when the on-off module 304 is kept in a closed state, the two driving motors 1 participate in torque output; when the on-off module 304 is turned off, only one driving motor 1 outputs torque to the transmission shaft 2, which is in a single-motor driving state. In the embodiment, the on-off module 304 is arranged, so that the high-torque requirement under the low-speed working condition can be met, the power performance of the medium-high speed can be guaranteed, and the performance same as that of the common single motor drive can be realized.
Of course, the setting mode of the on-off module 304 may also be: 1) the on-off module 304 is respectively arranged in each motor transmission unit 3; 2) the number of color settings of the on-off module 304 is kept slightly less than the number of settings of the motor drive unit 3. The two modes can more flexibly select which driving motor 1 outputs the torque, for example, in a single-motor driving mode, when a certain driving motor 1 fails, the driving motor 1 can be replaced by other driving motors 1, the situation that the torque cannot be output is avoided, and the flexibility and the reliability in use are improved.
Specifically, to simplify the structure and ensure the reliability of torque transmission, the on-off module 304 is a clutch.
In some embodiments, referring to fig. 1 and 3, in order to simplify the structure and ensure the reliability of the transmission, the first driving pulley 301 and the first driven pulley 302 are both gears, and are engaged with each other.
As a modified example of the transmission manner between the first driving wheel 301 and the first driven wheel 302, the motor transmission unit further includes a first transmission assembly, a driving end of the first transmission assembly is in transmission connection with the first driving wheel 301, and a driven end of the first transmission assembly is in transmission connection with the first driven wheel 302, which is not shown in the figure. Wherein, the first transmission assembly can be a chain transmission assembly, a belt transmission assembly, etc., one of which is coaxially connected to the first driving wheel 301, and the other is coaxially connected to the first driven wheel 302.
In some embodiments, referring to fig. 1 and 3, in order to simplify the structure and ensure the reliability of the transmission, the driving end of the transmission shaft 2 is coaxially and fixedly provided with a second driving wheel 5, and the second driven wheel 303 and the second driving wheel 5 are both bevel gears and are engaged with each other. In this embodiment, in consideration of compactness, the output shaft of the driving motor 1 is parallel to the driving shaft 401 of the load 4, and the transmission shaft 2 is perpendicular to the driving shaft 401 of the load 4, so that the bevel gear is adopted for direct meshing transmission, and the structural arrangement is more reasonable.
Based on the same inventive concept, referring to fig. 1 to 3, an embodiment of the present application further provides a motor driving system, which includes a load 4 and the above motor driving structure, wherein a transmission shaft 2 in the motor driving structure is in transmission connection with the load 4.
The utility model provides a motor drive system, motor drive structure wherein is through setting up the driving motor 1 that a plurality of output shafts are parallel to each other, and then transmits the moment of torsion of different driving motor 1 for transmission shaft 2 jointly respectively through motor drive unit 3, has realized the set of moment of torsion for motor drive structure's torque output can double promotion, and then can promote the dynamic property of vehicle, finally is favorable to promoting the acceleration of vehicle, performance such as climbing.
In some embodiments, referring to fig. 1-3, load 4 includes a drive shaft 401, a differential 402, and a differential lock 403; the drive shaft 401 has two half shafts 4011 corresponding to each other; the differential mechanism 402 is arranged on one of the two half shafts 4011, and the driven end of the transmission shaft 2 is in transmission connection with the differential mechanism 402; a differential lock 403 is provided on the other of the two half shafts 4011. For convenience of control, the differential lock 403 may be an electrically controlled differential lock.
The differential in the drive train of a motor vehicle has the function of allowing different speeds, so that when the vehicle slips on one side, the drive wheels on the other side can no longer transmit drive. In the embodiment, by arranging the differential lock 403, when one side slips, the differential lock 403 works, the half shaft 4011 provided with the differential lock 403 is fixedly connected with the differential 402, so that the two half shafts 4011 are fixedly connected into a whole to realize a locking function, the differential 402 fails, power is transmitted to one side of the non-slipping wheel, and the vehicle escaping performance is improved.
On the basis of the above embodiment, referring to fig. 2, the differential 402 includes the carrier 4021, the pinion 4022, and the side gear 4023; the planet carrier 4021 is coaxially and fixedly connected to one of the two half shafts 4011; a plurality of planetary gears 4022 are arranged and are respectively connected with the planetary gear carrier 4021 in a rotating manner; the half shaft gears 4023 are provided in two, and coaxially and fixedly connected to opposite ends of the two half shafts 4011, respectively, and each of the planetary gears 4022 is engaged with the two half shaft gears 4023 at the same time.
In this embodiment, the torque of the driving motor 1 enters the differential 402 through the transmission shaft 2 to drive the planet carrier 4021, and then the plurality of planet gears 4022 drive the two half-shaft gears 4023 to drive the two wheels 7 respectively; when a certain wheel 7 slips, the two half-shaft gears 4023 generate a rotation speed difference, so that the multiple planetary gears 4022 revolve and rotate, and the vehicle loses power and cannot get out of the stuck state, at the moment, a driver actively controls the differential lock 403, the differential lock 403 works, and the half-shaft gear 4023 on the half shaft 4011 provided with the differential lock 403 is fixedly connected with the planetary carrier 4021, so that the planetary carrier 4021, the planetary gears 4022 and the half-shaft gear 4023 are fixedly connected into a whole to realize a locking function, the differential 402 fails, power is transmitted to the side of the wheel which does not slip, and the vehicle getting out of the stuck state is improved.
Optionally, referring to fig. 2, two planetary gears 4022 are arranged oppositely on the premise of ensuring the transmission effectiveness.
In some embodiments, referring to fig. 2, in order to simplify the structure and ensure the reliability of the transmission, a third driven wheel 6 is coaxially and fixedly arranged at the driven end of the transmission shaft 2, and the third driven wheel 6 and the planet carrier 4021 are both bevel gears and are engaged with each other.
In some embodiments, referring to fig. 2, to simplify the structure and also to ensure the reliability of the assembly with the planet carrier 4021, the planet gears 4022 are coupled to the planet carrier 4021 by a bent bracket 4024.
Specifically, referring to fig. 2, bent stent 4024 is an L-shaped stent.
Based on the same inventive concept, the embodiment of the application also provides a vehicle, which comprises the motor driving system.
The utility model provides a vehicle, the driving motor 1 that motor drive structure wherein is parallel to each other through setting up a plurality of output shafts, and then transmit different driving motor 1's moment of torsion for transmission shaft 2 jointly respectively through motor drive unit 3, the set of moment of torsion has been realized for the moment of torsion output of motor drive structure can improve at double, and then can promote the dynamic property of vehicle, finally is favorable to promoting the acceleration of vehicle, performance such as climbing.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A motor drive structure characterized by comprising:
a plurality of driving motors, output shafts of which are parallel to each other;
the transmission shaft is suitable for being in transmission connection with a load; and
a plurality of motor drive units, with a plurality of driving motor one-to-one, every motor drive unit all includes first action wheel, first from driving wheel and second from the driving wheel, the coaxial rigid coupling of first action wheel in driving motor's output shaft, first from the driving wheel with first action wheel transmission is connected, the second from the coaxial rigid coupling of driving wheel in first from the driving wheel, the second from the driving wheel with the transmission shaft transmission is connected.
2. The motor drive structure according to claim 1, wherein the first driving pulley and the first driven pulley are both gears, and are engaged with each other.
3. The motor driving structure according to claim 1, wherein a second driving wheel is coaxially and fixedly arranged at the driving end of the transmission shaft, and the second driven wheel and the second driving wheel are both bevel gears and are engaged with each other.
4. The motor drive structure according to claim 1, wherein the first driven wheel and the second driven wheel are coaxially connected by a connecting shaft, and an on-off module is provided on the connecting shaft in at least one of the motor drive units, and when the on-off module is in a closed state, the drive motor can supply power to the drive shaft through the motor drive unit.
5. A motor drive system comprising a load and a motor drive configuration according to any one of claims 1 to 4, wherein the drive shaft of the motor drive configuration is drivingly connected to the load.
6. The motor drive system of claim 5, wherein the load comprises:
a drive shaft having two half shafts corresponding to each other;
the differential mechanism is arranged on one of the two half shafts, and the driven end of the transmission shaft is in transmission connection with the differential mechanism; and
and the differential lock is arranged on the other one of the two half shafts.
7. The motor drive system of claim 6, wherein the differential comprises:
the planet wheel carrier is coaxially and fixedly connected to one of the two half shafts;
the planetary gears are respectively connected with the planetary gear carrier in a rotating way; and
and the two half shaft gears are respectively and coaxially and fixedly connected to the opposite ends of the two half shafts, and each planetary gear is meshed with the two half shaft gears simultaneously.
8. The motor drive system according to claim 7, wherein a third driven wheel is coaxially and fixedly arranged at the driven end of the transmission shaft, and the third driven wheel and the planetary carrier are both bevel gears and are engaged with each other.
9. The motor drive system according to claim 7, wherein the planetary gear is coupled to the planetary carrier by a bent bracket.
10. A vehicle characterized by comprising the motor drive system according to any one of claims 5 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121135496.5U CN215110363U (en) | 2021-05-25 | 2021-05-25 | Motor drive structure, motor drive system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121135496.5U CN215110363U (en) | 2021-05-25 | 2021-05-25 | Motor drive structure, motor drive system and vehicle |
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| Publication Number | Publication Date |
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| CN215110363U true CN215110363U (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121135496.5U Active CN215110363U (en) | 2021-05-25 | 2021-05-25 | Motor drive structure, motor drive system and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114435100A (en) * | 2022-02-21 | 2022-05-06 | 浙江吉利控股集团有限公司 | Vehicle power system and vehicle |
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2021
- 2021-05-25 CN CN202121135496.5U patent/CN215110363U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114435100A (en) * | 2022-02-21 | 2022-05-06 | 浙江吉利控股集团有限公司 | Vehicle power system and vehicle |
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