CN219583932U - Battery back type electric drive bridge pure electric heavy clamping ring Wei Depan - Google Patents

Abstract

The utility model relates to the technical field of new energy vehicles, in particular to a pure electric heavy-duty sanitation chassis of a battery-back type electric drive bridge, including a driver's cab, a back battery box, an electric drive assembly and a bearing mechanism. The electric drive assembly includes four Integrated controller, motor controller, battery heat dissipation air conditioner, motor heat dissipation air conditioner, drive motor, the bearing mechanism includes a frame, and the frame is equipped with a front suspension, a rear suspension, and an electric drive axle; the back battery box passes through The frame is connected to the frame; the four-in-one controller and the motor controller are connected to the frame through a combined bracket; the battery cooling air conditioner and the motor cooling air conditioner respectively cool the back battery box and the drive motor; the drive motor is directly integrated into the electric drive On the bridge, it is connected to the frame through the rear suspension. The utility model adopts the electric drive axle to improve the transmission efficiency, increases the mileage of the whole vehicle, and adopts the installation of the battery box on the back, which can reduce the impact of the road surface environment on the battery.

Description

A pure electric heavy-duty truck sanitation chassis with a battery-backed electric drive axle

technical field

The utility model relates to the technical field of new energy vehicles, in particular to a sanitation chassis of a pure electric heavy-duty truck with a battery-back type electric drive bridge.

Background technique

The information disclosed in the background technology of the utility model is only intended to increase the understanding of the general background of the utility model, and is not necessarily regarded as an acknowledgment or in any form to imply that the information constitutes the prior art known to those skilled in the art .

At present, the existing common central drive pure electric heavy truck sanitation chassis drive train includes a drive motor, a gearbox, a transmission shaft, and a drive axle; the patent with the publication number CN213168287U in the prior art discloses a pure electric truck chassis structure and a pure electric truck chassis structure. The chassis structure of the pure electric truck includes a frame and a battery assembly. The frame extends along the front and rear directions. The frame has a torsion center plane along the front and rear directions. The battery assembly includes a plurality of first batteries arranged at intervals along the front and rear directions. Each of the first battery packs is extended along the left and right directions, wherein, along the left and right upwards, the torsion center plane is in the middle of the first battery packs, because the frame has a torsion center plane along the front and rear directions, and the pure electric truck chassis The structure is such that a plurality of first battery packs of the battery assembly are arranged on the vehicle frame at intervals along the front and rear directions, and each first battery pack is extended along the left and right directions, so that along the left and right upwards, the torsion center plane is located in the plurality of first battery packs The central position can reduce the torsional stress of the battery components on the frame, avoiding the heavy weight of the battery components, causing torsional deformation of the frame and affecting the strength of the frame; The problem of low efficiency is that the mileage of the whole vehicle with the same electric power is relatively short.

Utility model content

Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a pure electric heavy truck sanitation chassis of a battery-back type electric drive axle.

In order to achieve the above object, the utility model takes the following technical solutions:

A pure electric heavy-duty sanitation chassis of a battery-back type electric drive axle, including a cab, a back battery box, an electric drive assembly, and a load-carrying mechanism. The electric drive assembly includes a four-in-one controller, a motor controller, and a battery cooling air conditioner , motor heat dissipation air conditioner, drive motor, the load-carrying mechanism includes a vehicle frame, and the vehicle frame is provided with a front suspension, a rear suspension and an electric drive axle;

The back battery box is a high energy density lithium iron phosphate power battery, and the back battery box is connected to the frame through the frame;

The four-in-one controller and the motor controller are connected to the frame through the combined bracket, and the high-voltage wiring harness is used to control the driving motor to work. The battery cooling air conditioner and the motor cooling air conditioner respectively cool the back battery box and the driving motor;

The frame is a double-layer structure of main and sub-beams with a wide front and a narrow rear. The drive motor is directly integrated on the electric drive axle. It adopts dual motor coupling, symmetrically arranged in structure, and the load distribution is reasonable. It is connected to the frame through the rear suspension.

The utility model can be applied to urban sanitation cleaning vehicles, high-pressure cleaning vehicles, sprinkler vehicles and other urban road vehicle refitting with zero emission requirements. The electric drive axle can improve the transmission efficiency and increase the mileage of the whole vehicle.

The further improvement of the utility model is that the driver's cab adopts a special driver's cab for sanitation, and is connected with the vehicle frame through four-point suspension and front and rear spring suspension. The cab adopts this installation structure, which can further improve ride comfort.

A further improvement of the utility model is that the front cover of the driver's cab adopts a starry sky mask.

A further improvement of the utility model is that the back battery box is installed on the upper part of the vehicle frame, which can further reduce the impact of the road environment on the battery.

A further improvement of the utility model is that the front suspension adopts 11 spring pieces to be connected with the vehicle frame through bolts, which is beneficial to improve the load bearing of the chassis.

A further improvement of the utility model is that the rear suspension is a non-independent suspension of the main and auxiliary reed type leaf springs, the main spring adopts 9 leaf springs, and the auxiliary spring adopts 8 leaf springs to connect with the vehicle frame through bolts. It is beneficial to improve the chassis load.

Beneficial effects: the utility model can be applied to urban sanitation cleaning vehicles, high-pressure cleaning vehicles, sprinklers and other urban road vehicle refitting requirements with zero emission requirements. The use of electric drive axles can improve transmission efficiency and increase the mileage of the vehicle. The installation of the rear battery box can reduce the impact of the road environment on the battery.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is a top view structural schematic diagram of Fig. 1;

Fig. 3 is a top view structural schematic diagram of the bearing mechanism in a specific embodiment of the utility model;

Fig. 4 is the electric drive assembly in the specific embodiment of the utility model;

In the figure: 1. Cab; 2. Back battery box; 3. Electric drive assembly; 4. Carrying mechanism; 5. Low-voltage battery; 6. Battery management system; 7. Electric air compressor; 8. Dryer; 9. Spare tire; 3.1. Four-in-one controller; 3.2. Motor controller; 3.3. Battery cooling air conditioner; 3.4. Motor cooling air conditioner; 3.5. Drive motor; 4.1. Frame; 4.2. Front suspension; 4.3. Electric Axle drive; 4.4, rear suspension.

Detailed ways

Below in conjunction with specific embodiment and accompanying drawing, the utility model is further described.

As shown in Figures 1 to 4, a pure electric heavy-duty sanitation chassis of a battery-back type electric drive axle includes a driver's cab 1, a rear battery box 2, an electric drive assembly 3, and a load-carrying mechanism 4, and the electric drive assembly 3 includes four-in-one controller 3.1, motor controller 3.2, battery heat dissipation air conditioner 3.3, motor heat dissipation air conditioner 3.4, drive motor 3.5, carrying mechanism 4 includes frame 4.1, and frame 4.1 is equipped with front suspension 4.2, electric drive axle 4.3 and rear suspension 4.4;

The back battery box 2 is a high energy density lithium iron phosphate power battery, the back battery box 2 is fixed in the frame, and connected to the frame 4.1 through the frame;

The four-in-one controller 3.1 and the motor controller 3.2 are connected to the middle position of the vehicle frame 4.1 under the driver's cab 1 through a combined bracket, and are connected to the back battery box 2 and the drive motor 3.5 through a high-voltage wire harness. The battery cooling air conditioner 3.3 is connected to the At the middle position of the frame 4.1 below the back battery box 2, the motor cooling air conditioner 3.4 is connected to the frame 4.1 at the rear of the cab 1 through a bracket, and connected to the back battery box 2 and the drive motor 3.5 by steel pipes and hoses;

The frame 4.1 is a double-layer structure of main and sub-beams with a wide front and a narrow rear. The drive motor 3.5 is directly integrated on the electric drive axle 4.3. The double motors are coupled, and the structure is symmetrically arranged. The load distribution is reasonable. It is connected to the frame 4.1 through the rear suspension 4.4. .

Among them, the cab 1 adopts the sanitation special cab 1, adopts the starry sky mask, and is connected with the vehicle frame 4.1 through four-point suspension and front and rear spring suspension.

Among them, the four-in-one controller 3.1 includes the vehicle controller VCU, the motor controller MCU, DC/DC and the high-voltage power distribution box as one; the four-in-one controller 3.1 reserves a top-mounted high-voltage power-taking interface.

Wherein, the drive motor 3.5 is directly integrated on the electric drive axle 4.3, and connected to the vehicle frame 4.1 through the rear suspension 4.4.

Among them, the front suspension 4.2 uses 11 leaf springs to connect with the frame 4.1 through bolts, the rear suspension 4.4 is a non-independent suspension with main and auxiliary reed leaf springs, the main spring uses 9 leaf springs, and the auxiliary spring uses 8 leaf springs The sheet is connected with the vehicle frame 4.1 by bolts.

The utility model adopts the pure electric heavy-duty sanitation chassis of the battery-backed electric drive axle, cancels the gearbox and the transmission shaft, and directly integrates the drive motor on the drive axle. On the one hand, the weight of the chassis is reduced, and on the other hand, the transmission system is reduced. Reduce energy consumption, improve transmission efficiency, and the driving range of the whole vehicle with the same power is longer. In addition, the battery is located above the frame and is high from the ground, so it is not easily affected by stagnant water and wet roads, and the chassis has good passability.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the differences from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

If the terms "upper", "lower", "outer side" and "inner side" in the specification and claims of the present utility model and the above drawings are used to distinguish the relative relationship in position, they do not need to be qualitative. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A pure electric heavy-duty sanitation chassis of a battery-back type electric drive axle, comprising a driver's cab (1), a back battery box (2), an electric drive assembly (3) and a load-carrying mechanism (4), characterized in that, The electric drive assembly (3) includes a four-in-one controller (3.1), a motor controller (3.2), a battery cooling air conditioner (3.3), a motor cooling air conditioner (3.4), a driving motor (3.5), and the carrying mechanism (4) Including the frame (4.1), the frame (4.1) is equipped with a front suspension (4.2), an electric drive axle (4.3), and a rear suspension (4.4); the back battery box (2) is fixed on the frame Among them, it is connected to the vehicle frame (4.1) through the frame; the four-in-one controller (3.1) and the motor controller (3.2) are connected to the middle position of the vehicle frame (4.1) under the cab (1) through a combined bracket, using high-voltage wires The harness is connected to the back battery box (2) and the electric drive axle (4.3), the battery cooling air conditioner (3.3) is connected to the middle position of the vehicle frame (4.1) under the back battery box (2) through its bracket, and the motor cooling air conditioner ( 3.4) It is connected to the top of the vehicle frame (4.1) at the rear of the cab (1) through its bracket; the vehicle frame (4.1) is a double-layer structure of main and sub-beams with a wide front and a narrow rear, and the electric drive axle (4.3) is a double drive motor ( 3.5) Direct coupling integration, connected to the frame (4.1) through the rear suspension (4.4). 2. A pure electric heavy-duty sanitation chassis of a battery-back type electric drive axle according to claim 1, characterized in that, the back battery box (2) is arranged at the rear of the driver's cab (1), and the frame and Frame (4.1) connection. 3. A pure electric heavy-duty truck sanitation chassis of a battery-back type electric drive axle according to claim 1, wherein the front suspension (4.2) and the rear suspension (4.4) use spring plates to connect with the vehicle through bolts. frame (4.1) connected. 4. A pure electric heavy-duty truck sanitation chassis of a battery-back type electric drive axle according to claim 1, characterized in that the double drive motors (3.5) are arranged symmetrically. 5. A battery-back type electric drive axle pure electric heavy truck sanitation chassis according to claim 1, characterized in that the rear suspension (4.4) is a non-independent suspension of the main and auxiliary reed type leaf springs. 6. A pure electric heavy-duty truck sanitation chassis with a battery-back type electric drive axle according to claim 1, characterized in that the cab (1) is a cab (1) dedicated to sanitation, which is suspended by four points and front and rear The spring suspension is connected to the vehicle frame (4.1).