CN220947502U

CN220947502U - Chassis of pure electric drive bridge sanitation vehicle

Info

Publication number: CN220947502U
Application number: CN202322758574.2U
Authority: CN
Inventors: 刘行; 李蒙; 何清; 孙昌业; 郑宇�
Original assignee: China National Heavy Duty Truck Group Jinan Power Co Ltd
Current assignee: China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority date: 2023-10-13
Filing date: 2023-10-13
Publication date: 2024-05-14
Anticipated expiration: 2033-10-13

Abstract

A chassis of a pure electric drive bridge sanitation vehicle belongs to the technical field of new energy vehicles and comprises a cab, a back power battery system, an electric drive system, a high-voltage accessory, a low-voltage control system, a cooling system and a bearing and operating system; the electric drive system comprises a double drive motor, a double motor controller and a wire harness thereof; the high-pressure accessory comprises an electric steering pump, an electric air compressor, a four-in-one auxiliary controller and an air conditioner compressor; the cooling system comprises a battery air conditioner, a motor cooling module and a cooling pipeline thereof; the bearing and operating system comprises a frame, front and rear suspensions, a front axle, an electric drive axle and the like; the back power battery system is arranged at the rear side of the cab; the motor cooling module is arranged at the forefront end of the frame; the high-voltage accessories and the like are arranged below the cab through the composite bracket; the rearward chassis space of the back power battery system can be used for retrofitting. The chassis of the pure electric drive bridge sanitation truck is convenient to refit and high in reliability, and meets various sanitation truck requirements.

Description

Chassis of pure electric drive bridge sanitation vehicle

Technical Field

The utility model relates to the technical field of new energy vehicles, in particular to a chassis of a full-electric drive bridge sanitation vehicle.

Background

The environmental sanitation vehicle chassis is high in power consumption, high in modification space requirement, and currently, the pure electric ring sanitation vehicle chassis on the market mostly adopts a central driving mode, so that two requirements cannot be met. When the pure electric chassis is arranged and designed, the problems of functions, pipeline bundle arrangement, assembly convenience and the like are not comprehensively considered only aiming at the appearance of the components, so that the components are unreasonable to be arranged, the trend of the pipeline bundles is disordered, the number of sub-line sub-packaged components is small, mass production of the chassis is not facilitated, and maintenance operation of users is also not facilitated. With the continuous expansion of new energy municipal sanitation truck markets, the demands for solving the problems are increasingly urgent.

Disclosure of utility model

In order to solve the problem of unreasonable arrangement of the chassis in the prior art, the utility model aims to provide the chassis of the pure electric drive bridge sanitation vehicle, and the reliability and the maintenance convenience of the chassis are improved by optimizing the arrangement of new energy components and a cooling system on the premise of meeting the requirements of the refitting space and the electric quantity of the upper assembly, so that the assembly operation is more beneficial to mass production.

The utility model is realized by the following technical scheme: a chassis of a pure electric drive bridge sanitation vehicle comprises a cab, a back power battery system, an electric drive system, a high-voltage accessory, a low-voltage control system, a cooling system and a bearing and operating system; the bearing and operating system comprises a frame, a front suspension, a rear suspension, a front axle, an electric drive axle and a steering and braking system part are arranged on the frame, and a back power battery system is arranged on the frame at the rear side of the cab through a back battery frame; the electric driving system comprises a double driving motor and a double motor controller, the double driving motor is integrated on the electric driving bridge, and the double motor controller is arranged at the rear side of the third cross beam in the middle of the frame; the high-pressure accessory comprises an electric steering pump, an electric air compressor, a four-in-one auxiliary controller and an air conditioner compressor; the cooling system comprises a battery air conditioner and a motor cooling module; a second beam and a third beam of the bottom side frame of the cab are provided with composite brackets, and an electric steering pump, a four-in-one auxiliary controller, an air conditioner compressor and a battery air conditioner are arranged on the composite brackets; the electric air compressor is arranged on the frame below the left side of the back frame, and the motor cooling module is arranged at the bottom side of the cab and the rear side of the front cross beam of the frame; the low-voltage control system comprises a whole vehicle controller, a speed change controller, a low-voltage distribution box and a low-voltage storage battery, wherein the whole vehicle controller, the speed change controller and the low-voltage distribution box are arranged on a door-shaped frame at the bottom side of a cab, and the low-voltage storage battery is arranged on a composite bracket.

The utility model further improves that the cab adopts an environmental sanitation cab, and the cab is connected with the frame through four-point suspension and front-back suspension.

The utility model further improves that the frame is of a double-layer structure with a front wide main beam and a rear narrow auxiliary beam, the electric drive bridge is a rear axle, and the double-drive motor is integrated on the electric drive bridge and is arranged on the frame through a rear suspension.

The utility model further improves that the low-voltage storage battery and the electric steering pump are arranged at the front part of the upper layer of the composite bracket, the four-in-one auxiliary controller is arranged at the rear part of the upper layer of the composite bracket, the air conditioner compressor is arranged at the front part of the lower layer of the composite bracket, and the battery air conditioner is arranged at the rear part of the lower layer of the composite bracket.

The utility model further improves that the back power battery system adopts a high-energy-density lithium iron phosphate power battery.

In a further development of the utility model, the cooling system further comprises a top-mounted cooling interface, which is mounted in the middle of the frame at the rear side of the rear power battery system.

In a further improvement of the utility model, the front suspension is connected with the frame through bolts by adopting eleven spring pieces.

The utility model further improves that the rear suspension is a main and auxiliary leaf spring type leaf spring non-independent suspension, the main spring adopts nine leaf springs, the auxiliary spring adopts eight leaf springs, and the main spring and the auxiliary spring are connected with the frame through bolts.

The utility model further improves that the frame is provided with a steering gear and air cylinders, the steering gear is arranged on the left side of the front end of the frame, the air cylinders are provided with three groups, and the three groups of air cylinders are respectively arranged on the bottom side of the electric air compressor, the frame below the right side of the back battery frame and the rear cross beam of the rear axle of the frame.

The utility model further improves that the rear suspension bottom side of the frame is provided with a spare tire device.

From the technical scheme, the beneficial effects of the utility model are as follows:

1. The background disc cancels the central driving structures such as a gearbox, a transmission shaft and the like, and the driving motor is integrated on the rear driving axle, so that the available space of the chassis is expanded;

2. The motor cooling module is arranged at the front end of the chassis, so that the cooling effect is improved, the service life of the electric drive system is prolonged, and meanwhile, a cooling interface is provided on the way, so that a separate matched radiator, a water pump and the like can be omitted;

3. the air conditioner compressor and the battery air conditioner are arranged at the front part and the rear part of the lower layer of the composite bracket, so that the connection of corresponding pipelines is facilitated; the electric steering pump is arranged at the left side of the upper layer of the bracket, so that the steering gear can be conveniently connected; the low-voltage storage battery is arranged on the right side of the upper layer of the bracket, so that maintenance and replacement are facilitated; the four-in-one auxiliary controller is arranged at the rear side of the upper layer, so that MSD (mobile switching device) plugging operation, upper mounting connection power taking and the like are facilitated;

4. The high-voltage accessory (except for the electric air compressor), the low-voltage storage battery and the battery air conditioner are arranged on the composite bracket, all the components and the interconnection pipe wire bundles thereof can be split in advance under the line, the composite bracket is reserved with a hoisting structure, and the composite bracket can be integrally hoisted and placed on the second and third cross beams of the frame for fixing;

5. The back battery can be sub-assembled in the frame in a wire way, and is connected with a cooling pipeline, a wire harness and the like, and the frame can be integrally hoisted on the frame;

6. The whole vehicle controller, the transmission controller and the low-voltage distribution box are arranged on the door-shaped bracket, so that maintenance and debugging operations are facilitated;

7. The electric air compressor is arranged at the outer side of the frame to facilitate heat dissipation, and the air cylinder is arranged at the outer side of the frame to facilitate maintenance;

8. The chassis adopts the back battery to arrange, combines the electricity to drive the bridge form, and chassis function division is clear and definite, and frame both sides, top empty improves the repacking convenience greatly, satisfies multiple sanitation motorcycle type demand.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of an embodiment of the present utility model.

Fig. 2 is a schematic structural view of a composite stent according to an embodiment of the present utility model.

Fig. 3 is a schematic top view of a frame according to an embodiment of the present utility model.

Fig. 4 is a schematic view of the cab, the power battery system and the frame according to an embodiment of the utility model.

1. A cab; 2. a back power battery system; 3.1, double driving motors; 3.2, a double-motor controller; 4.1, an electric steering pump; 4.2, an electric air compressor; 4.3, a four-in-one auxiliary controller; 4.4, an air conditioner compressor; 5.1, a whole vehicle controller; 5.2, a speed change controller; 5.3, a low-voltage distribution box; 5.4, a low-voltage storage battery; 6.1, a battery air conditioner; 6.2, a motor cooling module; 6.3, loading a cooling interface; 7.1, a frame; 7.2, front suspension; 7.3, rear suspension; 7.4, front axle; 7.5, an electric drive bridge; 7.6, steering gear; 7.7, an air cylinder; 8. a spare tire device.

Detailed Description

In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the present utility model will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the utility model are intended to be within the scope of the patent protection.

Referring now to fig. 1-4, in connection with the specific embodiments, the following is described: the utility model relates to a chassis of a pure electric drive bridge sanitation vehicle, which comprises a cab 1, a back power battery system 2, an electric drive system, a high-voltage accessory, a low-voltage control system, a cooling system and a bearing and operating system; the bearing and operating system comprises a frame 7.1, wherein the frame 7.1 is provided with a front suspension 7.2, a rear suspension 7.3, a front axle 7.4, an electric drive axle 7.5 and steering and braking system parts consistent with the traditional diesel vehicle type, such as a steering gear 7.6 and an air reservoir 7.7; the frame 7.1 is of a double-layer structure with a wide front part and a narrow rear part, the electric drive bridge 7.5 is a rear axle, the cab 1 adopts the existing environmental sanitation truck cab, and the cab 1 is connected with the frame 7.1 through four-point suspension and front-rear suspension; the back power battery system 2 is arranged on a frame 7.1 at the rear side of the cab 1 through a back battery frame; the electric drive system comprises a double drive motor 3.1 and a double motor controller 3.2, wherein the double drive motor 3.1 is integrated on an electric drive bridge 7.5 and is arranged on the frame 7.1 through a rear suspension 7.3, and the double motor controller 3.2 is arranged on the rear side of a third cross beam in the middle of the frame 7.1; the high-pressure accessory comprises an electric steering pump 4.1, an electric air compressor 4.2, a four-in-one auxiliary controller 4.3 and an air conditioner compressor 4.4; the cooling system comprises a battery air conditioner 6.1, a motor cooling module 6.2 and pipelines thereof; the bottom side of the cab 1, the second cross beam and the third cross beam of the frame 7.1 are provided with composite brackets, the electric steering pump 4.1 is arranged at the front part of the upper layer of the composite brackets, the four-in-one auxiliary controller 4.3 is arranged at the rear part of the upper layer of the composite brackets, the air conditioner compressor 4.4 is arranged at the front part of the lower layer of the composite brackets, and the battery air conditioner 6.1 is arranged at the rear part of the lower layer of the composite brackets; the electric air compressor 4.2 is arranged on the frame 7.1 below the left side of the back frame, and the motor cooling module 6.2 is arranged on the bottom side of the cab 1 and the rear side of the front cross beam of the frame 7.1; the low-voltage control system comprises a whole vehicle controller 5.1, a speed change controller 5.2, a low-voltage distribution box 5.3 and a low-voltage storage battery 5.4, wherein the whole vehicle controller 5.1, the speed change controller 5.2 and the low-voltage distribution box 5.3 are arranged on a door-shaped frame at the bottom side of the cab 1.

The application principle of the utility model is as follows: the background disc cancels the central driving structures such as a gearbox, a transmission shaft and the like, and the double-driving motor 3.1 is integrated on the electric drive axle 7.5 (namely a rear drive axle), so that the available space of the chassis is greatly expanded; the motor cooling module 6.2 is arranged at the front end of the chassis, so that the cooling effect can be effectively improved, and the service life of the electric drive system is prolonged. The air conditioner compressor 4.4 and the battery air conditioner 6.1 are arranged on the lower layer of the composite bracket, so that the connection difficulty of corresponding pipelines is reduced, and the assembly is convenient; the electric steering pump 4.1 is arranged at the front part of the upper layer of the composite bracket, so that the connection with a steering gear is more convenient; the low-voltage storage battery 5.4 is arranged at the front part of the upper layer of the composite bracket, which is beneficial to maintenance and replacement; the four-in-one auxiliary controller 4.3 is arranged at the rear part of the upper layer of the composite bracket, which is beneficial to MSD plug operation, upper assembly connection power taking and the like. Because the high-voltage accessories (except the electric air compressor 4.2), the low-voltage storage battery 5.4 and the battery air conditioner 6.1 are arranged on the composite bracket, all parts and the interconnection pipeline bundles thereof can be split in advance under the line, the composite bracket is reserved with a hoisting structure, the composite bracket can be integrally hoisted and placed on the second and the third cross beams of the frame 7.1 for fixation, the assembly efficiency is higher, the back battery can be split in the frame under the line, the cooling pipeline, the wire bundles and the like are connected between the back battery and the frame, and the frame can be integrally hoisted on the frame 7.1. The whole vehicle controller 5.1, the transmission controller 5.2 and the low-voltage distribution box 5.3 are arranged on the door-shaped bracket, so that maintenance and debugging operations are facilitated. The electric air compressor 4.2 is arranged on the outer side of the frame 7.1, so that heat dissipation is facilitated, and the air storage cylinder 7.7 is arranged on the outer side of the frame 7.1, so that maintenance is facilitated. The chassis adopts the back battery to arrange, combines the electricity to drive the bridge form, and chassis function subregion is clear and definite, and frame 7.1 both sides, top empty improves the repacking convenience greatly, satisfies multiple sanitation motorcycle type demand.

In one embodiment, the back power cell system 2 employs a high energy density lithium iron phosphate power cell.

In one embodiment, the cooling system further comprises a top-loading cooling interface 6.3, and the top-loading cooling interface 6.3 is arranged on the frame 7.1 at the rear side of the back battery frame, so that a separate matched radiator, a water pump and the like can be omitted.

In one embodiment, the front suspension 7.2 is bolted to the frame 7.1 using eleven leaf springs.

In one embodiment, the rear suspension 7.3 is a main and auxiliary leaf spring non-independent suspension, the main spring adopts nine leaf springs, the auxiliary spring adopts eight leaf springs, and the main spring and the auxiliary spring are connected with the frame 7.1 through bolts.

In one embodiment, a steering gear 7.6 and air cylinders 7.7 are arranged on the frame 7.1, the steering gear 7.6 is arranged on the left side of the front end of the frame 7.1, the air cylinders are provided with three groups, and the three groups of air cylinders are respectively arranged on the bottom side of the electric air compressor 4.2, the frame 7.1 below the right side of the back battery frame and the rear cross beam of the rear axle of the frame 7.1. The steering and braking system part steering gear comprises 7.6 and an air cylinder 7.7, and the arrangement mode is more reasonable.

In one of the embodiments the rear suspension underside of the frame 7.1 is provided with a spare wheel arrangement 8.

The terms "upper", "lower", "outside", "inside", and the like in the description and in the claims of the present utility model and in the above drawings, if any, are used for distinguishing between relative relationships in position and not necessarily for giving qualitative sense. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The chassis of the pure electric drive bridge sanitation vehicle comprises a cab (1), a back power battery system (2), an electric drive system, a high-voltage accessory, a low-voltage control system, a cooling system and a bearing and operating system, and is characterized in that the bearing and operating system comprises a frame (7.1), a front suspension (7.2), a rear suspension (7.3), a front bridge (7.4), an electric drive bridge (7.5) and a steering and braking system part are arranged on the frame (7.1) at the rear side of the cab (1), and the back power battery system (2) is arranged on the frame (7.1) at the rear side of the cab through a back battery frame; the electric driving system comprises a double driving motor (3.1) and a double motor controller (3.2), the double driving motor (3.1) is integrated on the electric driving bridge (7.5), and the double motor controller (3.2) is arranged at the rear side of the third cross beam in the middle of the frame (7.1); the high-voltage accessory comprises an electric steering pump (4.1), an electric air compressor (4.2), a four-in-one auxiliary controller (4.3) and an air conditioner compressor (4.4); the cooling system comprises a battery air conditioner (6.1) and a motor cooling module (6.2); a second beam and a third beam of a bottom side frame (7.1) of the cab (1) are provided with composite brackets, and an electric steering pump (4.1), a four-in-one auxiliary controller (4.3), an air conditioner compressor (4.4) and a battery air conditioner (6.1) are arranged on the composite brackets; the electric air compressor (4.2) is arranged on the frame (7.1) below the left side of the back frame, and the motor cooling module (6.2) is arranged on the bottom side of the cab (1) and the rear side of the front cross beam of the frame (7.1); the low-voltage control system comprises a whole vehicle controller (5.1), a speed change controller (5.2), a low-voltage distribution box (5.3) and a low-voltage storage battery (5.4), wherein the whole vehicle controller (5.1), the speed change controller (5.2) and the low-voltage distribution box (5.3) are arranged on a door-shaped frame at the bottom side of a cab (1), and the low-voltage storage battery (5.4) is arranged on a composite bracket.

2. The full electric drive bridge sanitation vehicle chassis according to claim 1, wherein the cab (1) is an sanitation cab, and the cab (1) is connected with the vehicle frame (7.1) through four-point suspension and front-back suspension.

3. The chassis of a pure electric drive bridge sanitation truck according to claim 1, characterized in that the frame (7.1) is of a double-layer structure with a front wide main beam and a rear narrow auxiliary beam, the electric drive bridge (7.5) is a rear axle, and the double-drive motor (3.1) is integrated on the electric drive bridge (7.5) and is arranged on the frame (7.1) through a rear suspension (7.3).

4. The chassis of a pure electric drive bridge sanitation truck according to claim 1, wherein the low-voltage storage battery (5.4) and the electric steering pump (4.1) are arranged at the front part of the upper layer of the composite bracket, the four-in-one auxiliary controller (4.3) is arranged at the rear part of the upper layer of the composite bracket, the air conditioner compressor (4.4) is arranged at the front part of the lower layer of the composite bracket, and the battery air conditioner (6.1) is arranged at the rear part of the lower layer of the composite bracket.

5. The full electric drive bridge sanitation truck chassis according to claim 1, wherein the back power battery system (2) is a high energy density lithium iron phosphate power battery.

6. A pure electric drive bridge sanitation truck chassis according to claim 1, characterised in that the cooling system further comprises a top-mounted cooling interface (6.3), the top-mounted cooling interface (6.3) being mounted in the middle of the carriage at the rear side of the back-mounted battery frame.

7. The chassis of a full electric drive bridge sanitation vehicle according to claim 1, characterized in that the front suspension (7.2) is connected with the frame (7.1) by bolts through eleven spring pieces.

8. The chassis of a pure electric driven bridge sanitation vehicle according to claim 1, wherein the rear suspension (7.3) is a main and auxiliary leaf spring type non-independent suspension, nine leaf springs are adopted as main springs, eight leaf springs are adopted as auxiliary springs, and the main springs and the auxiliary springs are connected with the vehicle frame (7.1) through bolts.

9. The chassis of a pure electric drive axle sanitation truck according to claim 1, characterized in that a steering gear (7.6) and air cylinders (7.7) are arranged on the frame, the steering gear (7.6) is arranged on the left side of the front end of the frame (7.1), the air cylinders are provided with three groups, and the three groups of air cylinders are respectively arranged on the bottom side of the electric air compressor (4.2), the frame below the right side of the back battery frame and the rear cross beam of the rear axle of the frame (7.1).

10. A pure electric drive axle sanitation truck chassis according to claim 1, characterized in that the rear suspension bottom side of the truck frame (7.1) is provided with a spare wheel device (8).