CN213199440U

CN213199440U - Drive assembly with double motors oppositely arranged

Info

Publication number: CN213199440U
Application number: CN202021790412.7U
Authority: CN
Inventors: 姜桂宾; 刘宏鑫
Original assignee: Zhuhai Enpower Electric Co Ltd
Current assignee: Zhuhai Enpower Electric Co Ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-05-14
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses a drive assembly with double motors arranged oppositely, which comprises a first motor with a first controller arranged therein, a second motor with a second controller arranged therein, a first bevel gear connected with the output end of the first motor, a second bevel gear connected with the output end of the second motor, a first drive shaft installed in a rotating way, a second drive shaft connected with the first drive shaft and a differential connected with the second drive shaft; the first motor and the second motor are oppositely arranged, the first driving shaft is provided with a first end provided with a third bevel gear and a second end connected with the second driving shaft, the first bevel gear and the second bevel gear are simultaneously meshed with the third bevel gear, the first controller is in signal connection with the first motor, and the second controller is in signal connection with the second motor. The utility model discloses can be according to the condition on road, first motor and second motor drive alone or simultaneously for the drive assembly can provide different power, improves the drive efficiency of drive assembly, belongs to drive arrangement's technical field.

Description

Drive assembly with double motors oppositely arranged

Technical Field

The utility model relates to a drive arrangement's technical field especially relates to a relative drive assembly who sets up of bi-motor.

Background

An electric vehicle is a vehicle that uses electric energy as an energy source. The driving system is an important component of an electric vehicle, and includes a motor for converting electric energy into mechanical energy and transmitting the mechanical energy to wheels, so as to drive the vehicle to run. However, in the current vehicles powered by the vehicle-mounted power supply, a single-motor independent driving mode is mostly adopted. In order to provide better dynamic performance for the vehicle, a driving motor with relatively large power and torque is usually selected. In order to enable a single motor to have higher torque and power, the motor is usually larger in size, particularly larger in radial size, so that the whole vehicle is difficult to arrange and the like. When the vehicle runs under a better working condition, the motor driving efficiency is low and resources are wasted due to the lower working load of the motor.

SUMMERY OF THE UTILITY MODEL

To the technical problem who exists among the prior art, the utility model aims at: the utility model provides a relative drive assembly that sets up of bi-motor, the utility model discloses can be according to the condition of way, first motor and second motor drive alone or simultaneously for drive assembly can provide different power, improves drive assembly's drive efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a drive assembly with two oppositely arranged motors comprises a first motor with a first controller arranged therein, a second motor with a second controller arranged therein, a first bevel gear connected with the output end of the first motor, a second bevel gear connected with the output end of the second motor, a first drive shaft rotatably mounted, a second drive shaft connected with the first drive shaft, and a differential connected with the second drive shaft; the first controller is in signal connection with the first motor, the second controller is in signal connection with the second motor, the first motor and the second motor are arranged oppositely, the first driving shaft is provided with a first end provided with a third bevel gear and a second end connected with the second driving shaft, and the first bevel gear and the second bevel gear are meshed with the third bevel gear simultaneously.

As the preferred scheme, the drive assembly with the double motors oppositely arranged also comprises a box body; the first driving shaft is rotatably installed on the box body, and the first bevel gear, the second bevel gear and the third bevel gear are located in the box body.

Preferably, the first motor and the second motor are both permanent magnet synchronous motors.

Preferably, the diameter of the first bevel gear and the diameter of the second bevel gear are both smaller than the diameter of the third bevel gear.

Preferably, the diameter of the first bevel gear and the diameter of the second bevel gear are equal.

Preferably, the drive assembly with the two motors oppositely arranged further comprises a universal joint; the first driving shaft is in transmission connection with the second driving shaft through a universal joint.

Compared with the prior art, the utility model, its beneficial effect lies in: this drive assembly that bi-motor set up relatively can drive first bevel gear and second bevel gear rotation respectively through first motor and second motor to it is rotatory to drive the third bevel gear, and then indirect drive differential mechanism is rotatory, in order to accomplish the drive to the wheel. The number of the motors used for driving can be selected according to the road condition of the drive assembly, so that the drive assembly can provide different powers according to different road conditions, the driving efficiency of the drive assembly is improved, when one motor works, the other motor is in a standby charging state (when in standby, the motor rotates under the indirect transmission of the other motor to generate electricity, the energy is recycled and fed back to a battery of the whole vehicle, and the cruising power is improved); when two motors are selected to work simultaneously, enough power can be provided for ascending. The utility model discloses an overall structure is small, practice thrift space, security strong, high-speed operation, and duration is strong.

Drawings

Fig. 1 is a schematic structural diagram of a driving assembly with two motors oppositely arranged.

In the figure, 1 is a first controller, 2 is a first motor, 3 is a second controller, 4 is a second motor, 5 is a first bevel gear, 6 is a second bevel gear, 7 is a first driving shaft, 8 is a second driving shaft, 9 is a differential, 10 is a third bevel gear, 11 is a box body, and 12 is a universal joint.

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 noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "communicating" are to be construed broadly, e.g., as meaning 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.

For convenience of description, unless otherwise noted, the up-down direction described below coincides with the up-down direction of fig. 1 itself, and the left-right direction described below coincides with the left-right direction of fig. 1 itself.

As shown in fig. 1, the present embodiment provides a driving assembly with two oppositely disposed motors, which includes a first motor 2 with a first controller 1 disposed therein, a second motor 4 with a second controller 3 disposed therein, a first bevel gear 5 connected to an output end of the first motor 2, a second bevel gear 6 connected to an output end of the second motor 4, a first driving shaft 7 rotatably mounted thereon, a second driving shaft 8 connected to the first driving shaft 7, and a differential 9 connected to the second driving shaft 8; the first controller 1 is in signal connection with the first motor 2, the first controller 1 is integrated in the first motor 2, and the first controller 1 and the first motor 2 are integrated to realize integration of electric control and the first motor 2. The second controller 3 is in signal connection with the second motor 4, the second controller 3 is integrated in the second motor 4, the second controller 3 and the second motor 4 are integrated, and integration of electric control and the second motor 4 is achieved. The first motor 2 and the second motor 4 are oppositely arranged, and the output shaft of the first motor 2 is opposite to the output shaft of the second motor 4. The first drive shaft 7 has a first end provided with a third bevel gear 10 and a second end connected to the second drive shaft 8, the first bevel gear 5 and the second bevel gear 6 simultaneously meshing with the third bevel gear 10. The third bevel gear 10 is located between the first bevel gear 5 and the second bevel gear 6, the rotation directions of the first bevel gear 5 and the second bevel gear 6 are opposite, and the first driving shaft 7 can be driven to rotate by the rotation of the first bevel gear 5 and the second bevel gear 6 simultaneously or by one of the rotations. The power of the first motor 2 and the power of the second motor are combined into one, when the electric automobile needs large torque, the first motor 2 and the second motor work simultaneously, the torque is shared together, and the motors are guaranteed to run in a high-efficiency interval. Meanwhile, even if one of the motors breaks down, the other motor can work normally, and normal running of the vehicle is guaranteed.

Specifically, in one embodiment, the driving assembly with the two motors oppositely arranged further comprises a box body 11; the box 11 is provided with a bearing, the first driving shaft 7 is rotatably mounted on the box 11 through the bearing, the first bevel gear 5, the second bevel gear 6 and the third bevel gear 10 are all located in the box 11, the box 11 plays a role in dust prevention, and the meshing accuracy of the first bevel gear 5, the second bevel gear 6 and the third bevel gear 10 is prevented from being affected. The first bevel gear 5, the second bevel gear 6 and the third bevel gear 10 are all arranged in the box body 11, so that the structure of the whole driving assembly is more compact, and the occupied space of the whole driving assembly is reduced. The axis of the first bevel gear 5 and the axis of the second bevel gear 6 are located on the same straight line, and the axis of the first bevel gear 5 and the axis of the second bevel gear 6 are both perpendicular to the axis of the third bevel gear 10.

Specifically, in one embodiment, the first and second

electric machines

2 and 4 are both permanent magnet synchronous machines. The permanent magnet synchronous motor can be a motor or a generator. In the running process of the automobile, a part of permanent magnet synchronous motors can be started (in a driving mode), the rest parts are in a charging mode, and under the driving of the driving gear and the transmission gear, the permanent magnet synchronous motors in the charging mode can generate electricity and transmit the electric quantity to the battery for storage under the driving of other permanent magnet synchronous motors in the driving mode.

Specifically, in one embodiment, the diameter of the first bevel gear 5 and the diameter of the second bevel gear 6 are both smaller than the diameter of the third bevel gear 10. The rotating speed of the output shaft of the first motor 2 is reduced through the meshing of the first bevel gear 5 and the third bevel gear 10 and then transmitted to the first driving shaft 7, and the rotating speed of the output shaft of the second motor 4 is reduced through the meshing of the second bevel gear 6 and the third bevel gear 10 and then transmitted to the first driving shaft 7.

Specifically, in one embodiment, the diameter of the first bevel gear 5 and the diameter of the second bevel gear 6 are equal. The transmission efficiency of the first motor 2 and the second motor 4 is kept, and the stability of the driving assembly is ensured.

Specifically, in one embodiment, the dual motor oppositely disposed drive assembly further comprises a gimbal 12; the first drive shaft 7 is in driving connection with the second drive shaft 8 via a universal joint 12. The first driving shaft 7 drives the second driving shaft 8 to rotate through the universal joint 12, and the universal joint 12 enables the automobile to be more flexible in steering.

The utility model discloses a working process does: and respectively installing a left wheel axle and a right wheel axle of the automobile on two output ends of the differential. When the electric vehicle is used, the driving modes of the first motor and the second motor are selected according to the road condition, if the electric vehicle is in light load, one of the motors is selected to be in a working state and the other motor is selected to be in a standby charging state according to the condition that the first motor and the second motor are heated (when the electric vehicle is in standby, the motor rotates under indirect transmission to generate electricity, and energy is recovered to a battery of the whole vehicle so as to improve the endurance); when climbing a slope, the first motor and the second motor are selected to work simultaneously, and sufficient power is provided for ascending the slope.

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

1. The utility model provides a drive assembly of relative setting of bi-motor which characterized in that: the device comprises a first motor internally provided with a first controller, a second motor internally provided with a second controller, a first bevel gear connected with the output end of the first motor, a second bevel gear connected with the output end of the second motor, a first driving shaft rotatably installed, a second driving shaft connected with the first driving shaft, and a differential connected with the second driving shaft; the first controller is in signal connection with the first motor, the second controller is in signal connection with the second motor, the first motor and the second motor are oppositely arranged, the first driving shaft is provided with a first end provided with a third bevel gear and a second end connected with the second driving shaft, and the first bevel gear and the second bevel gear are meshed with the third bevel gear simultaneously.

2. The oppositely disposed dual-motor drive assembly as set forth in claim 1, wherein: the device also comprises a box body; the first driving shaft is rotatably mounted on the box body, and the first bevel gear, the second bevel gear and the third bevel gear are both located in the box body.

3. The oppositely disposed dual-motor drive assembly as set forth in claim 1, wherein: the first motor and the second motor are both permanent magnet synchronous motors.

4. The oppositely disposed dual-motor drive assembly as set forth in claim 1, wherein: the diameter of the first bevel gear and the diameter of the second bevel gear are both smaller than the diameter of the third bevel gear.

5. The oppositely arranged drive assembly of the double motors as claimed in claim 4, wherein: the first bevel gear and the second bevel gear have equal diameters.

6. The oppositely disposed dual-motor drive assembly as set forth in claim 1, wherein: the universal joint is also included; the first driving shaft is in transmission connection with the second driving shaft through the universal joint.