CN206749896U - A kind of automobile chassis structures - Google Patents

Abstract

The utility model discloses an automobile chassis structure, which comprises a vehicle beam assembly, a front axle, a rear axle, a battery box installed on the vehicle beam assembly, a battery management system, a vehicle controller, an integrated controller, a motor controller, The drive motor and the beam assembly include a pair of longitudinal beams and several cross beams; the battery box is installed inside the two longitudinal beams and between the front axle and the rear axle; the battery management system and the vehicle controller are arranged on the battery box and the front axle. The bridges are fixed on the corresponding beams, and the connection line between the center of the battery management system and the center of the vehicle controller is perpendicular to the longitudinal beams; the integrated controller and the motor controller are arranged and fixed between the battery box and the rear axle On the corresponding crossbeam, and the line connecting the center of the integrated controller and the center of the motor controller is perpendicular to the longitudinal beam; the drive motor is installed on the rear axle and connected with the rear wheel drive. The utility model has the beneficial effects that: the layout is reasonable, the space for the battery box is large, and the cruising range of the electric vehicle is improved.

Description

A car chassis structure

【Technical field】

The utility model relates to the technical field of electric vehicles, in particular to an automobile chassis structure.

【Background technique】

Electric vehicles have the characteristics of low noise, no pollution, diversified energy sources, and high energy efficiency. They are highly valued and strongly supported by the state, and are becoming more and more popular. Most of the chassis of existing electric vehicles are reformed from the chassis of fuel vehicles. Due to the great difference in the installation structure and installation position of the motor and engine, there are some disadvantages in the chassis structure of most electric vehicles. For example, the transmission shaft is in the middle of the chassis, the space between the frame beam and the two sides of the transmission shaft is small, and the space utilization rate of the battery box is low, resulting in a short cruising range of the electric vehicle; the large size of the gearbox is not conducive to the rational layout of the chassis space.

In view of the above disadvantages, it is necessary to provide an automobile chassis structure to overcome the above defects.

【Content of utility model】

The utility model provides an automobile chassis structure, which has a reasonable layout and a large space for arranging a battery box, thereby improving the endurance mileage of an electric automobile.

In order to achieve the above object, the utility model provides an automobile chassis structure, including a vehicle beam assembly, a front axle with front wheels installed at both ends, a rear axle with rear wheels installed at both ends, and a battery box installed on the vehicle beam assembly, A battery management system, a vehicle controller, an integrated controller, a motor controller, and a drive motor. The vehicle beam assembly includes a pair of longitudinal beams with opposite ends and several The beam of the longitudinal beam; the battery box is installed on the inner side of the two longitudinal beams and is located between the front axle and the rear axle; the battery management system and the vehicle controller are arranged between the battery box and the front axle and fixed on the corresponding beam, and the line connecting the center of the battery management system and the center of the vehicle controller is perpendicular to the longitudinal beam; the integrated controller and motor controller are arranged on the battery between the box and the rear axle and fixed on the corresponding beam, and the line connecting the center of the integrated controller and the center of the motor controller is perpendicular to the longitudinal beam; the drive motor is installed on the rear axle on and connected to the rear wheel drive.

In a preferred embodiment, the battery box is a one-piece structure and is symmetrical about the center line between the two longitudinal beams, and is fixed on the corresponding beams.

In a preferred embodiment, the drive motor is a direct drive motor, and the drive motor is installed on the rear axle at a side away from the motor controller.

In a preferred embodiment, the integrated controller is a three-in-one controller integrating a DC-DC converter, an air pump and an oil pump.

In a preferred embodiment, a reinforcing beam parallel to the cross beam is provided between the battery box and the integrated controller and the motor controller.

In a preferred embodiment, a pair of leaf springs are installed on the rear axle, and the pair of leaf springs are respectively located between the two longitudinal beams and the corresponding rear wheels.

Compared with the prior art, the beneficial effect of the automobile chassis structure provided by the utility model is that the layout is reasonable, and a large number of transmission parts can be omitted by using the direct-drive motor drive system, so as to increase the size and capacity of the battery box and improve the performance of the electric vehicle. recharge mileage.

【Description of drawings】

Fig. 1 is the top structural schematic diagram of the automobile chassis structure of the present invention.

【detailed description】

In order to make the purpose, technical solution and beneficial technical effects of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementations described in this specification are only for explaining the utility model, not for limiting the utility model.

As shown in Figure 1, the utility model provides an automobile chassis structure 100, including a vehicle beam assembly 10, a front axle 20 with front wheels 21 installed at both ends, a rear axle 30 with rear wheels 31 installed at both ends, and a rear axle 30 installed on the vehicle beam The battery box 40 , battery management system 50 , vehicle controller 60 , integrated controller 70 , motor controller 80 and drive motor 90 on the assembly 10 .

The vehicle beam assembly 10 includes a pair of longitudinal beams 101 opposite to each other and several cross beams 102 connected between the two longitudinal beams 101 and perpendicular to the longitudinal beams 101 . The battery box 40 is installed inside the two longitudinal beams 101 and between the front axle 20 and the rear axle 30 . Specifically, the battery box 40 is an integral structure and is symmetrical about the center line between the two longitudinal beams 101 , and is fixed on the corresponding cross beam 102 .

The battery management system 50 and the vehicle controller 60 are arranged between the battery box 40 and the front axle 20 and fixed on two corresponding beams 102, and the center of the battery management system 50 and the vehicle A line connecting the centers of the controller 60 is perpendicular to the longitudinal beam 101 . The battery management system 50 is connected to the power line drawn from the battery box 40 and connected to the motor controller 80 . The battery management system 50 is used to monitor and protect each battery, and communicate with other devices in real time. The vehicle controller 60 is the core electronic control unit for implementing vehicle control decisions, and judges the driver's driving intention by collecting signals such as the accelerator pedal, gear position, and brake pedal.

The integrated controller 70 and the motor controller 80 are arranged between the battery box 40 and the rear axle 30 and fixed on two corresponding beams 102, and the center of the integrated controller 70 and the motor controller The line connecting the centers of 80 is perpendicular to the longitudinal beam 101 . This structural design facilitates the wiring connection between the motor controller 70 and the driving motor 90 . In this embodiment, the integrated controller 70 is a three-in-one controller integrating a DC-DC converter, an air pump, and an oil pump, and is used to start charging the power supply, charge the air tank, and provide steering power. It is convenient and saves assembly space. The motor controller 80 converts DC power into AC power through a frequency converter to provide power to the drive motor 90 to control the start, speed regulation, braking and reverse of the drive motor 90 .

The driving motor 90 is installed on the rear axle 30 and is drivingly connected with the rear wheel 31 . Specifically, the driving motor 90 is a direct drive motor and the driving motor 90 is installed on the rear axle 30 and is located on a side away from the motor controller 70 . This structural design can balance the front and rear loads of the chassis and increase the stability of driving. When working, the driving motor 90 drives the rear axle 30 to directly drive the rear wheel 31 to rotate, which can reduce the mechanical transmission device and improve the effective utilization rate of energy.

Furthermore, the vehicle chassis structure 100 provided by the present invention also includes a reinforcing beam 11 . The reinforcing beam 11 is located between the battery box 40 and the integrated controller 70 and the motor controller 80 and is parallel to the cross beam 102 . The reinforcing beam 11 includes two reinforcing blocks 111 and a reinforcing bar 112 connecting the two reinforcing blocks 111 . The top view of the reinforcing block 111 is trapezoidal, and the longer base is fixed on the corresponding longitudinal beam 101 , and the shorter base is connected to the corresponding end of the reinforcing rod 112 . The reinforcing beam 11 plays a certain role in enhancing the structural stability of the vehicle beam assembly 10, and at the same time facilitates the installation and connection of other structural components. In addition, a pair of leaf springs 301 are installed on the rear axle 30 , and the pair of leaf springs 301 are respectively located between the two longitudinal beams 101 and the corresponding rear wheels 31 to play the role of buffering and shock absorption.

The vehicle chassis structure provided by the utility model has a reasonable layout, and a large number of transmission parts can be omitted by adopting a direct-drive motor drive system, so as to increase the size and capacity of the battery box and improve the cruising range of the electric vehicle.

The utility model is not limited to the description in the description and the implementation, so those skilled in the art can easily realize additional advantages and modifications, so without departing from the spirit and general concept defined by the claims and equivalent scope Without limitation, the invention is not limited to the specific details, representative apparatus, and illustrative examples shown and described herein.

Claims (6)

1. a kind of automobile chassis structures, including bicycle beam assembly, the propons of both ends installation front-wheel, the back axle and peace of both ends installation trailing wheel Battery case, battery management system, entire car controller, integrated manipulator, electric machine controller, driving electricity on bicycle beam assembly Machine, it is characterised in that：The bicycle beam assembly includes the longeron that a pair of both ends faces set and some is connected between two longerons And perpendicular to the crossbeam of the longeron；The battery case be arranged on the inner side of two longerons and positioned at the propons and back axle it Between；The battery management system and entire car controller are arranged between the battery case and propons and are fixed on corresponding crossbeam On, and the line at the center of the battery management system and the center of the entire car controller is perpendicular to the longeron；The collection It is arranged between the battery case and back axle and is fixed on corresponding crossbeam into controller and electric machine controller, and it is described integrated The line at the center of controller and the center of the electric machine controller is perpendicular to the longeron；The motor is arranged on described It is connected on back axle and with rear wheel drive.

2. automobile chassis structures as claimed in claim 1, it is characterised in that：The battery case is for integral type structure and on two Center line between longeron described in root is symmetrical, and is fixed on corresponding crossbeam.

3. automobile chassis structures as claimed in claim 2, it is characterised in that：The motor is direct driving motor and the drive Dynamic motor is arranged on back axle and is located remotely from the side of the electric machine controller.

4. automobile chassis structures as claimed in claim 3, it is characterised in that：The integrated manipulator is DC-DC converter, gas Pump and the integrated Three-in-one controller of oil pump.

5. automobile chassis structures as claimed in claim 4, it is characterised in that：The battery case and the integrated manipulator and electricity A buttress brace parallel with the crossbeam is additionally provided between machine controller.

6. automobile chassis structures as claimed in claim 5, it is characterised in that：A pair of steel plate bullets are also equipped with the back axle Spring, a pair of leaf springs are respectively between two longerons and corresponding trailing wheel.