CN213619959U

CN213619959U - Small-size one-level pure electric bus of marking time and chassis structure thereof

Info

Publication number: CN213619959U
Application number: CN202022214536.7U
Authority: CN
Inventors: 石添华; 张财智; 吴顺秋; 上官晓磊
Original assignee: Xiamen Golden Dragon Bus Co Ltd
Current assignee: Xiamen Golden Dragon Bus Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-07-06
Anticipated expiration: 2030-09-30

Abstract

The utility model provides a small-size one-level pure electric bus of marking time and chassis structure thereof relates to the bus field. The chassis structure comprises a frame, an axle and a power battery. The frame comprises a front suspension cabin and a rear suspension cabin; the axle comprises a front axle and a rear axle; the front axle is positioned behind the front suspension cabin; the rear axle is located forward of the rear suspension. The power battery comprises a plurality of battery boxes; wherein a part of the battery box is arranged in the middle of the front suspension cabin or in the middle of the front suspension cabin to the upper middle area of the front axle; the remaining battery boxes are arranged in the rear suspension compartment. The problem of over-light load of the front axle is solved by arranging a part of the battery box from the middle of the front suspension cabin to the middle area above the front axle. Through the reasonable distribution design of the axle loads of the front axle and the rear axle, the stability and the passenger capacity of the whole vehicle are improved.

Description

Small-size one-level pure electric bus of marking time and chassis structure thereof

Technical Field

The utility model relates to a bus field especially relates to a small-size electronic bus and chassis structure thereof.

Background

The existing small bus type needs to realize a one-level step scheme in a passenger area, and generally adopts a mode of independent suspension, power battery rear partition arrangement or battery top arrangement through a front axle. However, the arrangement scheme has the defects that the cost of the whole vehicle chassis is higher, the area of a first-stage step area of a passenger area is not large, the stability of the whole vehicle operation is influenced by the excessively light load of the front axle (the battery is arranged in a rear partition mode), or the roll stability of the whole vehicle is influenced by the relatively high mass center of the whole vehicle and the excessively heavy weight of the whole vehicle (the battery is arranged in a top mode).

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of poor stability of the whole car of existence at the in-process that realizes passenger zone one-level and mark time of small-size bus. Therefore, the utility model provides the following technical scheme.

A chassis structure of a small first-stage stepping pure electric bus comprises a frame, an axle and a power battery; the frame comprises a front suspension cabin and a rear suspension cabin; the axle comprises a front axle and a rear axle; the front axle is positioned behind the front suspension cabin; the rear axle is positioned in front of the rear suspension cabin; the power battery comprises a plurality of battery boxes; wherein a part of the battery box is arranged in the middle of the front suspension cabin or in the middle of the front suspension cabin to the upper middle area of the front axle; the remaining battery boxes are arranged in the rear suspension compartment. The middle area above the front axle is an area between the left front wheel and the right front wheel.

Furthermore, the front axle is a rigid axle which can be a traditional rigid axle, and a large-drop door type front axle is not required. The chassis structure is a primary step structure.

Further, the chassis structure includes a suspension disposed between the frame and the axle, the suspension including a resilient element. The elastic element can be a steel plate spring or an air spring.

Furthermore, the number of the power batteries arranged in the middle of the front suspension cabin or between the middle of the front suspension cabin and the middle area above the front axle is 1-3.

Further, the power battery comprises four battery boxes, wherein the first battery box is arranged from the middle of the front suspension cabin to the upper middle area of the front axle, and the other three battery boxes are arranged in the rear suspension cabin.

Further, the main body of the first battery box is arranged in the middle of the front suspension cabin, and the other part of the first battery box extends to the middle area above the front axle.

Furthermore, the battery boxes are all cuboid, and the three battery boxes arranged in the rear suspension cabin are arranged in parallel from the left side to the right side of the chassis structure.

The utility model discloses still provide a small-size one-level pure electric bus of marking time that contains above-mentioned chassis structure. The pure electric bus comprises a right front wheel, a right rear wheel, a front door and a rear door. The front door and the rear door are disposed between the right front wheel and the right rear wheel.

Furthermore, in the pure electric bus, the wheelbase is 5-6 times of the front overhang. The wheel base is the distance from the front axle to the rear axle, and the front suspension is the distance from the front axle to the front end of the vehicle.

Furthermore, pure electric bus includes a driver seat, and this driver seat sets up in left front wheel top.

The utility model has the advantages that: the area maximization of a primary step area of a passenger area of a small bus type is realized through a chassis arrangement scheme of short front suspension, long wheelbase and partial battery front suspension bottom arrangement; the axle load of the front axle and the rear axle is reasonably distributed, so that the space in the vehicle is not influenced, the problem that the front axle is too light in load is solved, the center of gravity is low, and the stability and the passenger capacity of the whole vehicle are improved; compared with a large-drop door type front axle, the scheme adopts a traditional rigid axle, and the power battery is not cut off or mounted in an overhead manner, so that the manufacturing cost of the whole vehicle is reduced.

Drawings

Fig. 1 is a top view structural diagram of a chassis structure of a small first-level stepping pure electric bus in an embodiment.

Fig. 2 is a top view structural diagram of a small first-level stepping pure electric bus in the embodiment.

Fig. 3 is a left side view structure diagram of a small first-level stepping pure electric bus according to an embodiment.

Reference numerals: the vehicle comprises a frame 1, a power battery 2, a front suspension cabin 3, a rear suspension cabin 4, a front axle 5, a rear axle 6, a pure electric bus 7, a right front wheel 8, a right rear wheel 9, a front door 10, a rear door 11, a driver seat 12 and a left front wheel 13.

Detailed Description

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1, a chassis structure of a small-sized one-level stepping pure electric bus comprises a frame 1, an axle and a power battery 2. The frame comprises a front suspension cabin 3 and a rear suspension cabin 4. The axle comprises a front axle 5 and a rear axle 6. The front axle 5 is located behind the front suspension cabin 3. The rear axle 6 is located in front of the rear suspension 4. The power battery 2 comprises a plurality of battery boxes; wherein a part of the battery box is arranged in the middle of the front suspension cabin 3 or in the middle of the front suspension cabin 3 to the middle area above the front axle 5; the remaining battery boxes are arranged in the rear suspension compartment 4. Wherein, the middle area above the front axle 5 is the area between the left front wheel and the right front wheel.

The scheme of arranging all the battery chassis and partially suspending the battery front bottom solves the problem of over-light front axle load, reduces the center of gravity of the whole bus, improves the stability of the whole bus, realizes the maximization of the first-level step area of a passenger area of a small bus type, and improves the passenger capacity.

Furthermore, the front axle 5 is a rigid axle, which can be a traditional rigid axle, and a large-drop door type front axle is not needed, so that the manufacturing cost is reduced. The chassis structure is a one-level step structure, only one step is needed for getting on the vehicle, and the step is not needed. It should be noted that the rear end of the chassis can adopt a multi-step structure.

Further, the chassis structure comprises a suspension arranged between the frame 1 and the axle, which suspension comprises a resilient element. The elastic element can be a steel plate spring or an air spring, so that the application range of the chassis structure is enlarged.

Further, the number of the power batteries 2 arranged in the middle of the front suspension cabin 3 or in the middle of the front suspension cabin 3 to the middle area above the front axle 5 is 1-3.

Further, the power battery 2 includes four battery boxes, wherein a first battery box is arranged from the middle of the front suspension cabin 3 to the middle region above the front axle 5, and the other three battery boxes are arranged in the rear suspension cabin 4. The problem of over-light front axle load is solved by arranging a battery box from the middle of the front suspension cabin 3 to the middle area above the front axle 5. Through the reasonable distribution design of the axle loads of the front axle and the rear axle, the stability of the whole vehicle is improved.

Further, the main body of the first battery box is arranged in the middle of the front suspension cabin 3, and the rest of the first battery box extends to the middle area above the front axle 5.

Further, the battery boxes are all rectangular parallelepiped, and three battery boxes arranged in the rear suspension cabin 4 are arranged in parallel from the left side to the right side of the chassis structure.

As shown in fig. 2, the utility model discloses a small-size one-level pure electric bus 7 of marking time that contains above-mentioned chassis structure is still provided. The pure electric bus 7 comprises a right front wheel 8, a right rear wheel 9, a front door 10 and a rear door 11. The front door 10 and the rear door 11 are disposed between the right front wheel 8 and the right rear wheel 9.

Further, in the pure electric bus 7, the wheelbase is 5-6 times of the front suspension. The wheelbase is the distance from the front axle 5 to the rear axle 6, and the front suspension is the distance from the front axle 5 to the front end of the vehicle. The area of a primary step area of a passenger area of a small bus type is maximized and the passenger capacity is improved by a chassis arrangement scheme of combining a short front suspension and a long wheelbase with partial battery front suspension bottom arrangement.

As shown in fig. 3, further, the pure electric bus includes a driver seat 12, and the driver seat 12 is disposed above the left front wheel 13, so that the structure is reasonable, and the stability is better.

The utility model discloses a pure small-size public transit chassis of one-level marking time adopts short overhang, long wheel base design and arranges corresponding power battery box above the front axle, and all the other power battery arrange in the rear overhang equipment cabin. The front axle 5 is a conventional rigid axle. In one embodiment, the problem of too light front axle load is solved by arranging a power battery in the middle of the front suspension cabin 3 to the middle region above the front axle 5. All the power batteries 2 are arranged on the chassis, the height of the mass center of the whole vehicle can be effectively reduced, and the space in the whole vehicle is not influenced. The operating stability, the safety and the passenger carrying level of the whole bus are greatly improved (by adopting the arrangement scheme, the passenger carrying number of the bus with the length of 8 meters is close to that of the existing bus with the length of 8 meters and 5 meters, and the passenger carrying efficiency of the bus is greatly improved). The front axle adopts the traditional rigid axle, and the power battery is not separated or mounted in a top-mounted manner, so that the manufacturing cost of the whole vehicle is greatly reduced.

The above-described embodiments are intended to be merely exemplary, to better enable those skilled in the art to understand the present invention, and should not be construed as limiting the scope of the invention; any equivalent alterations or modifications made according to the spirit of the present invention are all within the scope of the protection claimed in the present invention.

Claims

1. A chassis structure of a small first-stage stepping pure electric bus comprises a frame, an axle and a power battery; the frame comprises a front suspension cabin and a rear suspension cabin; the axle comprises a front axle and a rear axle; the front axle is positioned behind the front suspension cabin; the rear axle is positioned in front of the rear suspension cabin; the method is characterized in that: the power battery comprises a plurality of battery boxes; wherein a part of the battery box is arranged in the middle of the front suspension cabin or in the middle of the front suspension cabin to the upper middle area of the front axle; the remaining battery boxes are arranged in the rear suspension compartment.

2. The chassis structure of the small first-level stepping pure electric bus according to claim 1, wherein: the front axle is a rigid axle, and the chassis structure is a primary step structure.

3. The chassis structure of the small first-level stepping pure electric bus according to claim 1, wherein: the chassis structure comprises a suspension arranged between the frame and the axle, wherein the suspension comprises an elastic element, and the elastic element is a steel plate spring or an air spring.

4. The chassis structure of the small first-level stepping pure electric bus according to claim 1, wherein: the power battery is arranged in the middle of the front suspension cabin or 1-3 battery boxes are arranged from the middle of the front suspension cabin to the middle area above the front axle.

5. The chassis structure of the small first-level stepping pure electric bus according to claim 1, wherein: the power battery comprises four battery boxes, wherein the first battery box is arranged from the middle of the front suspension cabin to the middle area above the front axle, and the other three battery boxes are arranged in the rear suspension cabin.

6. The chassis structure of the small first-level stepping pure electric bus according to claim 5, wherein: the main body of the first battery box is arranged in the middle of the front overhang cabin, and the other part of the first battery box extends to the middle area above the front axle.

7. The chassis structure of the small first-level stepping pure electric bus according to claim 5, wherein: the battery boxes are cuboid, and the three battery boxes arranged in the rear suspension cabin are arranged in parallel from the left side to the right side of the chassis structure.

8. A small-sized one-stage stepping pure electric bus comprising the chassis structure as claimed in any one of claims 1 to 7, wherein the pure electric bus comprises a right front wheel, a right rear wheel, a front door and a rear door; the front door and the rear door are disposed between the right front wheel and the right rear wheel.

9. The small first-class stepping pure electric bus according to claim 8, wherein: the wheelbase is 5-6 times of the front suspension.

10. The small first-class stepping pure electric bus according to claim 8, wherein the pure electric bus comprises a driver seat, and the driver seat is arranged above the left front wheel.