Integrated motor power system for pure electric commercial vehicle

Abstract

The utility model discloses an integrated motor power system for a pure electric commercial vehicle, which relates to the technical field of motors and comprises a power motor device, an electric steering oil pump device and an electric air compressor device. The electric air compressor device is arranged on the other side of the power motor device, the electric steering oil pump device comprises a steering oil pump, and the electric air compressor device comprises an inflating pump. According to the system, the system is highly integrated, convenience is improved for arrangement and design of a vehicle, production and assembly time is shortened, and production efficiency and maintenance convenience of the vehicle are improved; power can be provided for automobile power, a steering oil pump and an inflation pump, and the number of system parts installed in a split mode is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and particularly to an integrated motor power system for pure - electric commercial vehicles. Background Technique

[0002] At present, due to the increasingly serious problems such as energy shortage and environmental pollution, with the development of low - carbon economy and technological innovation in the automotive industry, environmentally friendly and energy - saving pure - electric vehicles are increasingly favored by people. Automobile manufacturers have increased their R & D efforts on pure - electric vehicles. The existing technical solutions for pure - electric vehicles ( Figures 1-3 ), the overall structure of a pure - electric commercial vehicle includes a power motor device 200, an electric power steering oil pump device 300, and an electric air compressor device 400 arranged inside the vehicle device 100. The electric power steering oil pump device 300 includes a steering oil pump 310 and a steering motor 320. The electric air compressor device 400 includes an air pump 410 and an air compressor motor 420, enabling each device to work independently and having no mutual connection. However, this structure has some problems: 1. The battery pack in the electric commercial vehicle occupies a large space, resulting in a relatively cramped installation position for other devices, making it difficult to meet the requirements of assembly and maintenance, and significantly increasing costs; 2. There are many motor components in the three devices of the power motor, electric oil pump, and electric air compressor, increasing the component installation points and failure points, and increasing the sources of faulty parts; 3. The integration degree of the split system is low, the wiring is complex, and the anti - interference ability is poor, which will further increase the difficulty of vehicle manufacturing and assembly and prolong the vehicle delivery time.

[0003] Based on this, an integrated motor power system for pure - electric commercial vehicles is now provided, which can eliminate the drawbacks existing in the existing technical solutions. Content of the Utility Model

[0004] The purpose of the utility model is to provide an integrated motor power system for pure - electric commercial vehicles to solve the problems of relatively cramped installation positions of other systems, too many component installation points and failure points, and low integration degree of the split system in the background technique.

[0005] To achieve the above - mentioned purpose, the utility model provides the following technical solutions:

[0006] An integrated motor power system for pure - electric commercial vehicles includes a power motor device, an electric power steering oil pump device, and an electric air compressor device. The electric power steering oil pump device is arranged on one side of the power motor device, and the electric air compressor device is arranged on the other side of the power motor device. The electric power steering oil pump device includes a steering oil pump for generating high - pressure oil to provide power for vehicle steering, and the electric air compressor device includes an air pump for providing an air source for vehicle braking.

[0007] Preferably, the power motor device includes a plurality of power motors, and the plurality of power motors are of an integrated structure. On one side of one of the power motors, there are two power take-off interfaces. One power take-off interface is connected to the output end of the steering oil pump, and the other power take-off interface is connected to the output end of the air pump. One side of both the steering oil pump and the air pump is fixedly connected to the output end of one of the power motors. On one side of the power motor, there is a traction inverter, and the traction inverter is electrically connected to each of the plurality of power motors.

[0008] Preferably, the plurality of power motors are configured as a coaxial structure of multiple motors.

[0009] Preferably, the plurality of power motors are also configured as a non-coaxial structure of multiple motors.

[0010] Preferably, an integrated controller is provided on one side of the power motor, and the integrated controller is electrically connected to the power motor.

[0011] Preferably, the integrated controller includes a housing. Sound insulation cotton is laid on the inner wall of the housing. A temperature reduction component is arranged inside the sound insulation cotton. The housing is detachably arranged on the outside of the power motor through a positioning component. A control module is arranged inside the housing. One end of the wiring terminal of the control module extends to the outside of the housing. The control module includes an input unit, a programming unit, and an output unit, and the input unit, the programming unit, and the output unit are electrically connected to each other.

[0012] Preferably, the positioning component includes card slots symmetrically arranged on the surface of the power motor. Plug posts are slidably arranged inside the card slots. The plug posts are symmetrically installed on both sides of the housing. Grooves are arranged inside the plug posts. Through openings connected to the grooves are symmetrically formed on both sides of the grooves. Positioning blocks are slidably arranged inside the through openings. Protrusions are arranged at both ends of the positioning blocks. A push plate is slidably arranged inside the grooves. The push plate is connected to the inner wall of the groove through a spring. A screw rod is rotatably arranged at the other end of the push plate. The screw rod is threadedly connected to the plug post.

[0013] Preferably, the specifications and dimensions of the card slots and the plug posts are adapted to each other. Positioning grooves connected to the card slots are arranged on both sides of the card slots, and the specifications and dimensions of the positioning grooves and the positioning blocks are adapted to each other.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. In this utility model, the system is highly integrated, which improves the convenience for vehicle layout design, reduces the production and assembly time, enhances the vehicle production efficiency and maintenance convenience. The system integrates the steering oil pump and the air pump into an integrated structure, and several power motors adopt an integrated structure, which can respectively provide power for the vehicle power, the steering oil pump and the air pump, reduce the number of system components installed separately, and reduce the cost;

[0016] 2. This utility model adopts the method of integrating the controller and the power motor. The controller and the power motor are integrated together, which is convenient for saving space, improving the sealing performance, reducing the distance and volume of the connecting cables between the power motor and the controller, reducing the complexity of wiring, and is provided with a cooling component, which can reduce the temperature of each component on the controller, extend the service life of the controller. In addition, the system is also provided with a positioning component, which is convenient for disassembling the controller and the power motor for maintenance. Description of the Drawings

[0017] Figure 1 Schematic diagram of the vehicle structure of the prior art.

[0018] Figure 2 Schematic diagram of the structure of the electric steering pump device of the prior art.

[0019] Figure 3 Schematic diagram of the structure of the electric air compressor device of the prior art.

[0020] Figure 4 Schematic diagram of the overall structure of this utility model.

[0021] Figure 5 Schematic diagram of the structure of this utility model.

[0022] Figure 6 Schematic diagram of the structure of Embodiment 3 of this utility model.

[0023] Figure 7 Schematic diagram of the internal structure of this utility model.

[0024] Figure 8 Schematic diagram of the structure of the positioning component of this utility model.

[0025] Annotation of reference numerals: Vehicle 100, Power motor device 200, Power motor 210, Power take-off interface 220, Electric steering oil pump device 300, Steering oil pump 310, Steering motor 320, Electric air compressor device 400, Air pump 410, Air compressor motor 420, Integrated controller 500, Housing 510, Control module 520, Card slot 530, Plug post 540, Groove 550, Positioning block 560, Push plate 570, Screw 580, Positioning groove 590. Detailed Description of the Invention

[0026] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] Embodiment 1

[0028] In this embodiment, as Figures 4-5 shown, an integrated motor power system for a pure electric commercial vehicle includes a power motor device 200, an electric power steering oil pump device 300, and an electric air compressor device 400. The power motor device 200 can provide power for the driving operation of the vehicle. The electric power steering oil pump device 300 is disposed on one side of the power motor device 200, and the electric air compressor device 400 is disposed on the other side of the power motor device 200. The electric power steering oil pump device 300 includes a steering oil pump 310 for generating high-pressure oil to provide power for vehicle steering. The electric air compressor device 400 includes an air pump 410 for providing an air source for vehicle braking. The steering oil pump 310 and the air pump 410 are integrated into an integrated structure by the power motor device 200. The integrated motor structure can respectively provide power for the electric power steering oil pump device 300 and the electric air compressor device 400, reduce the number of separately installed components, thereby reducing production costs, and because the system is highly integrated, it can facilitate the layout design of the vehicle, reduce the production and assembly time, and improve production efficiency and maintenance convenience.

[0029] Among them, as Figures 4-5 shown, the power motor device 200 includes a plurality of power motors 210. The plurality of power motors 210 are of an integrated structure, which modifies the split structure of the traditional motor to facilitate combining functions together. On one side of one of the power motors 210, there are two power take-off interfaces 220. One power take-off interface 220 is connected to the output end of the steering oil pump 310, and the other power take-off interface 220 is connected to the output end of the air pump 410. One side of both the steering oil pump 310 and the air pump 410 is fixedly connected to the output end of one power motor 210. A traction inverter is disposed on one side of the power motor 210. The traction inverter is electrically connected to each of the plurality of power motors 210. Through the traction inverter, the power system is highly integrated, so that the power motor 210 and the traction inverter are integrated into one, reducing the occupied distance and volume.

[0030] Among them, as Figures 4-5As shown, several power motors 210 are arranged in a coaxial structure of multiple motors. The several power motors 210 can be a coaxial structure of multiple radial magnetic field motors, or the several power motors 210 can also adopt a coaxial structure of multiple axial magnetic field motors. The axial magnetic field motor is arranged as a disc motor, which is beneficial to reducing the design and installation difficulty. The coaxial-mounted motors have different speed-torque characteristics, which is convenient for adapting to different load requirements and providing power for vehicles, electric power steering oil pump devices 300, and electric air compressor devices 400.

[0031] Embodiment 2

[0032] The difference from Embodiment 1 is that, as Figures 4-5 shown, several power motors 210 are also arranged in a non-coaxial structure of multiple motors, which is convenient for installing the steering oil pump 310 and the air pump 410 to ensure the overall practicability of the system. The system can also adopt any combination of two of the power motor device 200, the electric power steering oil pump device 300, and the electric air compressor device 400, corresponding to the overall system requirements of different pure electric commercial vehicles. For example, only the power motor device 200 and the electric power steering oil pump device 300 are integrated. The above integration methods can effectively reduce the complexity of system installation and maintenance, and greatly reduce the labor intensity of the staff.

[0033] Embodiment 3

[0034] The differences from Embodiments 1 and 2 are that, as Figures 6-8 shown, an integrated controller 500 is arranged on one side of the power motor 210, and the integrated controller 500 is electrically connected to the power motor 210. Compared with the way of separately arranging the integrated controller 500 and the power motor 210 in the traditional vehicle structure, adopting the integrated setting method of the integrated controller 500 and the power motor 210 makes the power motor 210 and the integrated controller 500 an integral body, so that there is no need to fix the integrated controller 500 and the power motor 210 separately, reducing the distance and volume of the connecting cables between the power motor 210 and the integrated controller 500, increasing the sealing effect, and greatly reducing the space occupation area, saving the production cost in terms of wire fixing and waterproofing.

[0035] As Figure 6As shown in the figure, the integrated controller 500 includes a housing 510. Sound insulation cotton is laid on the inner wall of the housing 510, which plays a role in sound insulation and dispersing the vibration force generated during the operation of the power motor 210. A cooling component is arranged inside the sound insulation cotton. The cooling component can be set as a water pipe, and the other end of the water pipe is connected to the refrigeration device of the commercial vehicle. The housing 510 is detachably arranged outside the power motor 210 through a positioning component. A control module 520 is arranged inside the housing 510. One end of the terminal of the control module 520 extends to the outside of the housing 510. The control module 520 includes an input unit, a programming unit, and an output unit. The input unit, the programming unit, and the output unit are electrically connected. The control module 520 is a common controller structure in the art, integrating the controller, the driver, and the encoder together to form an integrated control module, improving the overall power density and shortening the distance between the controller, the driver, and the encoder.

[0036] As shown in Figure 8 the figure, the positioning component includes card slots 530 symmetrically arranged on the surface of the power motor 210. Plug posts 540 are slidably arranged inside the card slots 530. The plug posts 540 are symmetrically installed on both sides of the housing 510. Grooves 550 are arranged inside the plug posts 540. Through openings connected to the grooves 550 are symmetrically opened on both sides of the grooves 550. Positioning blocks 560 are slidably arranged inside the through openings. Convex blocks are arranged at both ends of the positioning blocks 560. A push plate 570 is slidably arranged inside the grooves 550. The push plate 570 is connected to the inner wall of the grooves 550 through a spring. The other end of the push plate 570 is rotatably provided with a screw rod 580. The screw rod 580 is threadedly connected to the plug post 540. The user only needs to rotate the screw rod 580 to realize the movement operation of the push plate 570. When the push plate 570 contacts the positioning block 560, the push plate 570 squeezes the positioning block 560 to both sides, enabling the positioning block 560 to be smoothly stuck into the positioning groove 590, thereby fixing and limiting the plug post 540 and the housing 510. Compared with the connection method in which the power motor 210 and the integrated controller 500 are of an integral structure, the above method is convenient for disassembly and installation, convenient for replacing locally damaged components, and does not require overall maintenance, greatly saving production costs.

[0037] As shown in Figure 8 the figure, the specifications and dimensions of the card slots 530 and the plug posts 540 are adapted to each other. Positioning grooves 590 connected to the card slots 530 are arranged on both sides of the card slots 530. Spring components for driving the positioning blocks 560 to return to their original positions are arranged inside the positioning grooves 590, which is convenient for ensuring the normal use of the component. The specifications and dimensions of the positioning grooves 590 and the positioning blocks 560 are adapted to each other to avoid the situation of component jamming.

[0038] As described above, this is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An integrated motor power system for a pure electric commercial vehicle, characterized in that: The invention comprises a power motor device (200), an electric steering oil pump device (300) and an electric air compressor device (400), wherein the electric steering oil pump device (300) is arranged on one side of the power motor device (200), and the electric air compressor device (400) is arranged on the other side of the power motor device (200). The electric steering oil pump device (300) comprises a steering oil pump (310) for generating high-pressure oil to provide power for vehicle steering, and the electric air compressor device (400) comprises an air pump (410) for providing an air source for vehicle braking.

2. The integrated motor power system for a pure electric commercial vehicle according to claim 1, characterized in that: The power motor device (200) comprises a plurality of power motors (210), wherein the plurality of power motors (210) are of an integrated structure, wherein one side of one of the power motors (210) is provided with two power take-off interfaces (220), wherein one of the power take-off interfaces (220) is connected to the output end of a steering oil pump (310), and the other power take-off interface (220) is connected to the output end of an air pump (410), and one side of the steering oil pump (310) and the air pump (410) are both fixedly connected to the output end of one of the power motors (210), and a traction inverter is provided on one side of the power motor (210), and the traction inverter is electrically connected to the plurality of power motors (210).

3. The integrated motor power system for a pure electric commercial vehicle according to claim 2, characterized in that: The plurality of power motors (210) are arranged as a coaxial structure of multiple motors.

4. The integrated motor power system for a pure electric commercial vehicle according to claim 2, characterized in that: The plurality of power motors (210) are also arranged as a non-coaxial structure of multiple motors.

5. The integrated motor power system for a pure electric commercial vehicle according to claim 2, characterized in that: An integrated controller (500) is provided on one side of the power motor (210), and the integrated controller (500) is electrically connected to the power motor (210).

6. The integrated motor power system for a pure electric commercial vehicle according to claim 5, characterized in that: The integrated controller (500) comprises a shell (510), the inner wall of the shell (510) is paved with sound insulation cotton, a cooling component is arranged inside the sound insulation cotton, the shell (510) is detachably arranged on the outside of the power motor (210) through a positioning assembly, a control module (520) is arranged inside the shell (510), one end of the terminal of the control module (520) extends to the outside of the shell (510), and the control module (520) comprises an input unit, a programming unit and an output unit, and the input unit, the programming unit and the output unit are electrically connected.

7. The integrated motor power system for a pure electric commercial vehicle according to claim 6, characterized in that: The positioning assembly includes a slot (530) symmetrically arranged on the surface of the power motor (210), a plug (540) is slidably arranged inside the slot (530), the plug (540) is symmetrically installed on both sides of the shell (510), a groove (550) is arranged inside the plug (540), and through openings connected to the groove (550) are symmetrically opened on both sides of the groove (550), a positioning block (560) is slidably arranged inside the through opening, and protrusions are arranged at both ends of the positioning block (560), a push plate (570) is slidably arranged inside the groove (550), the push plate (570) is connected to the inner wall of the groove (550) through a spring, and a screw (580) is rotatably arranged at the other end of the push plate (570), and the screw (580) is threadedly connected to the plug (540).

8. The integrated motor power system for a pure electric commercial vehicle according to claim 7, characterized in that: The card slot (530) is adapted to the specifications and dimensions of the plug post (540), and positioning slots (590) connected to the card slot (530) are provided on both sides of the card slot (530), and the positioning slots (590) are adapted to the specifications and dimensions of the positioning block (560).

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