CN210591222U

CN210591222U - Electric motor coach

Info

Publication number: CN210591222U
Application number: CN201921258750.3U
Authority: CN
Inventors: 王欢迎; 吴亿超; 陈树威; 郭瑞; 陈振宇
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-05-22
Anticipated expiration: 2029-07-31

Abstract

The utility model relates to a vehicle field discloses an electric motor coach, include: a front compartment (1) provided with a first axle (11) and a second axle (12) spaced from each other; a middle carriage (2) provided with a third axle (13) and connected to the tail end of the front carriage by a first articulated connection assembly (4); a rear compartment (3) provided with a fourth axle (14) and connected to the end of the middle compartment remote from the front compartment by a second articulated connection assembly (5); a power system comprising a battery pack (6) and a drive motor electrically connected to the battery pack and drivingly connected to wheels (7) mounted on at least one of the first, second, third and fourth axles. The utility model discloses an [ electric ] motor coach includes the multisection carriage, has effectively increased the space by bus, has promoted bicycle passenger capacity, has advantages such as environment-friendly, economic nature height.

Description

Electric motor coach

Technical Field

The utility model relates to a vehicle field specifically relates to an electric motor coach.

Background

The energy consumed and the occupied road area are calculated according to the number of passengers, and compared with a common passenger vehicle, the public transport vehicle has the advantages of remarkably high economical efficiency, environmental friendliness and the like. Therefore, in many countries around the world, public transportation buses are preferentially developed, and buses for public transportation are quite mature in design concepts, design technologies and the like, and make great contribution to improvement of convenience for human travel.

It is common today for passenger cars to employ diesel drives to achieve the required power performance based on mature internal combustion engine technology. For example, chinese patent application CN103231744A discloses a four-axis double-hinge articulated passenger car structure, which comprises a main car and a secondary car, both of which are of a double-axle structure, wherein the front axle of the main car is a steering axle, and the rear axle is a drive axle; the front axle of the auxiliary vehicle is a follow-up axle, and the rear axle is a linkage steering axle. The main vehicle and the auxiliary vehicle are connected with each other through a traction winch and a soft shed. The passenger car is driven by an internal combustion engine, has great environmental pollution, and is beneficial to the mode of transmission of the transmission shaft, and has the defect of low transmission efficiency. And because the rear axle of the auxiliary vehicle adopts the linkage steering axle, only a single side and a single tire can be adopted, and the bearing capacity is limited.

Electric motor coaches which are favorable for motor driving exist in the market, but are generally limited to coaches of single carriage type so as to ensure the required power performance and endurance requirements, and the problem of insufficient transportation capacity is difficult to properly solve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bicycle fortune is high, environment friendly [ electric ] motor coach to solve the problem that current passenger train environmental pollution is big or the freight capacity is difficult to promote.

In order to achieve the above object, an aspect of the present invention provides an electric motor coach, including: a front compartment provided with a first axle and a second axle spaced from each other; the middle carriage is provided with a third axle and is connected to the tail end of the front carriage through a first hinge connection assembly; the rear carriage is provided with a fourth axle and is connected to one end of the middle carriage, which is far away from the front carriage, through a second hinge connection assembly; and the power system comprises a battery pack and a driving motor, wherein the driving motor is electrically connected to the battery pack and is in transmission connection with at least one of the first axle, the second axle, the third axle and the fourth axle.

Preferably, the first axle is a steering axle, and two wheels are respectively mounted at the first end and the second end of each of the second axle, the third axle and the fourth axle.

Preferably, two of the first, second, third and fourth axles are drive axles, the powertrain comprises a motor controller signally connected to the drive motors and arranged to be selectively controllable as single or dual axle drive, and/or the drive motors are wheel-side motors.

Preferably, the electric motor coach is provided with a chassis frame positioned on the lower side of a carriage floor, and the battery pack is arranged on the chassis frame and positioned between the first axle and the second axle, between the second axle and the third axle and/or between the third axle and the fourth axle.

Preferably, the power system comprises a plurality of groups of battery packs which are arranged on the left half side and the right half side of the chassis frame in an equal weight mode.

Preferably, the front compartment, the middle compartment and the rear compartment are respectively provided with a top framework and a side wall framework, and the transverse beam of the top framework is connected with the longitudinal beam at the top of the side wall framework at the joint through a connecting piece connected through a fastener.

Preferably, the roof frame is formed to have an arched cross section, and/or a top pitch of the opposite side wall frames is smaller than a bottom pitch.

Preferably, both sides of the electric motor coach are provided with doors, and/or the front compartment, the middle compartment and the rear compartment are respectively provided with at least one door.

Preferably, a passenger seat and a wheelchair area are arranged in the electric motor coach.

Preferably, the first and second hinge connection assemblies respectively include a hinge plate and a hinge hood circumferentially closing a space between the front and middle compartments and between the middle and rear compartments.

Through the technical scheme, the utility model discloses an [ electric ] motor coach includes the multisection carriage, has effectively increased the space by bus, has promoted bicycle passenger capacity. And because the battery pack is used for providing power and the driving motor drives the vehicle to run, the vehicle has the advantages of environmental friendliness, high economy and the like.

Drawings

Fig. 1 is a half sectional view of an electric motor coach according to a preferred embodiment of the present invention;

fig. 2 is another side half sectional view of an electric motor coach according to a preferred embodiment of the present invention;

fig. 3 is a schematic top view of an axle and a driving device in an electric bus according to a preferred embodiment of the present invention;

fig. 4 is an exploded view of a body frame of an electric motor coach according to a preferred embodiment of the present invention;

FIG. 5 is a cross-sectional view of the body frame of FIG. 4;

FIG. 6 is a schematic view of a connection structure of the vehicle body frame of FIG. 4;

fig. 7 is a distribution diagram of a battery pack in an electric motor coach according to a preferred embodiment of the present invention;

fig. 8 is a schematic diagram of the arrangement structure of the battery pack in fig. 7 on the chassis frame.

Description of the reference numerals

1-front carriage; 2-middle carriage; 3-rear compartment; 4-a first hinge connection assembly; 5-a second hinge connection assembly; 6-battery pack; 7-vehicle wheels; 8-a motor controller; 9-a chassis frame; 10-a vehicle door; 11-a first axle; 12-a second axle; 13-a third axle; 14-a fourth axle; 15-top skeleton; 15A-transverse beam; 16-side wall frame; 16A-longitudinal beam; 17-a connector; 18-a passenger seat; 19-a hinged disk; 20-hinged awning.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, when the description is not made to the contrary, the terms of orientation such as "upper, lower, front, rear, left and right" used generally refer to the upper, lower, front, rear, left and right orientations of the electric motor coach when normally parked or running. The "lateral direction" refers to the left-right width direction of the electric motor coach, and the "longitudinal direction" refers to the front-rear length direction of the electric motor coach.

Referring to fig. 1 to 4, an electric passenger car according to a preferred embodiment of the present invention includes a front compartment 1, a middle compartment 2, and a rear compartment 3, wherein the front compartment 1 is provided with a first axle 11 and a second axle 12, the middle compartment 2 is provided with a third axle 13 and is connected to a tail end of the front compartment 1 through a first hinge connection assembly 4, and the rear compartment 3 is provided with a fourth axle 14 and is connected to one end of the middle compartment 2, which is far away from the front compartment 1, through a second hinge connection assembly 5. It will be appreciated that the first and second hinge connection assemblies 4 and 5 described herein may be hinged structures between passenger cars as is known in the art, thereby allowing relative rotation of adjacent cars at an included angle (non-linear alignment) to facilitate vehicle turning. The first and second are used for clearly distinguishing different connection positions on the electric motor coach, and do not represent the difference of the specific structures of the two.

The electric passenger car has a power system including a battery pack 6 and a drive motor electrically connected to the battery pack 6, the drive motor being drivingly connected to at least one of a first axle 11, a second axle 12, a third axle 13, and a fourth axle 14 (i.e., drivingly connected to wheels on the respective axles to form a drive axle). As will be described later, the electric motor coach of the present invention may have a plurality of battery packs 6 and a plurality of corresponding driving motors corresponding to different axles, not limited to the driving form of a single driving motor, so as to obtain higher power performance or better controllability.

According to the foregoing, the utility model provides an use electric motor coach of electric energy in battery package 6 as power supply compares in the internal-combustion engine passenger train among the conventional art, owing to need not to burn fuel such as oil, has avoided a large amount of greenhouse gas's emission, has advantages such as environment-friendly, economic nature height. In addition, the electric motor coach is provided with three passenger compartments such as a front compartment 1, a middle compartment 2 and a rear compartment 3, so that the riding space is increased conveniently, and the passenger capacity of a single coach is effectively improved. Under the situation of the same passenger capacity, the utility model discloses an [ electric ] motor coach compares and has showing less turning radius in two sections carriage passenger cars of prior art, has effectively improved trafficability characteristic, satisfies the quick public transit system in city (BRT) circuit demand.

Typically, the utility model discloses an electric motor coach can adopt and bear formula automobile body or half bear formula automobile body from this can have chassis frame 9, as the installation basis of each axle. In order to enable the adjacent carriages to relatively rotate to realize turning driving and keep the riding space to keep better closed, the first hinge connecting assembly 4 and the second hinge connecting assembly 5 can respectively comprise a hinge disc 19 and a hinge hood 20, the hinge disc 19 is used for hinge connecting the multi-section chassis frame 9 together, so that the traction connection among the front carriage 1, the middle carriage 2 and the rear carriage 3 is realized and the relative rotation is allowed; the articulated canopy 20 circumferentially closes the space between the front car 1 and the middle car 2, and between the middle car 2 and the rear car 3, as shown in fig. 4. The hinged awning 20 is typically made of a flexible material or formed to have a deformable shape (e.g., corrugated) to be able to deform into a corresponding shape in response to changes in the relative positions of adjacent compartments when the electric motor coach turns, keeping the riding space closed.

The utility model discloses an [ electric ] motor coach has the three carriage of mutual articulated connection. In one specific embodiment, the length of the vehicle body can reach 27 meters, the designed passenger capacity is 250 people, and the vehicle can be used for urban BRT lines or airport ferry vehicles and the like. For such a passenger car with large passenger capacity, at least one door 10 may be disposed on each of the front car 1, the middle car 2 and the rear car 3, so that passengers can be rapidly evacuated in case of fire, and the passengers can get on or off the car conveniently. In the preferred embodiment shown in the figure, seven passenger doors are arranged on the left side of the electric motor coach, and two safety doors are arranged on the right side of the electric motor coach, so that the electric motor coach is suitable for being used in a left driving area, and is convenient for improving the convenience of getting on and off passengers and the use safety.

In addition, in order to adapt to the use of different types of passengers, the electric passenger car can be internally provided with a plurality of passenger seats 18 and wheelchair regions, so that passengers can sit comfortably, and the comfort requirement can be met by colleagues with larger passenger capacity; when the disabled person takes the wheelchair to ride, the wheelchair area can provide a component (such as a wheelchair fixing facility) suitable for the disabled person to use, and the disabled person is prevented from being injured due to acceleration and deceleration in the driving process. The passenger seat 18 may include a plurality of folding seats to further meet the requirements of passenger capacity and riding comfort, and the passenger may choose to stand or sit according to the distance of the travel. And an electric appliance cabinet, a toilet and the like can be arranged in the carriage of the passenger car according to requirements.

The utility model discloses an [ electric ] motor coach has four axles, and driving system can the transmission connect wherein arbitrary one or more axles go in order to drive. For example, the first axle 11 may be used as a steering drive axle, and the wheels 7 thereon are driven to rotate by a driving motor. In the illustrated preferred embodiment, the first axle 11 is a steer axle for controlling the direction of travel of the vehicle by the driver; the second axle 12 and the third axle 13 are driving axles, and are in transmission connection with a power system; the fourth axle 14 is a support axle that supports the rear compartment 3. As shown in fig. 3, the motor controllers 8 may be mounted on both upper sides of the second axle 12 and the third axle 13, respectively, and the motor controllers 8 are connected to the driving motors through signals and can be controlled by a large instrument desk in a driving area. Therefore, the driver can select to adopt two power modes of single-axle driving and double-axle driving. When the power output requirement is high, an instruction is sent to the motor controller 8, all the driving motors work simultaneously, and the second axle 12 and the third axle 13 are used as driving axle output power simultaneously, so that high power can be obtained; when the power output requirement is small, a command is sent to the motor controller 8, so that if the driving motor on the second axle 12 works and the driving motor on the third axle 13 stops, the small power is output.

In other embodiments, two transaxles may be provided in other combinations, and the output power may be switched as needed. Therefore, the utility model discloses an [ electric ] motor coach can switch between dynamic nature and economic nature in order, satisfies the demand of customer under different work condition.

The utility model discloses a driving motor can be for the wheel limit motor, and each drive wheel corresponds the transmission promptly and connects independent driving motor to obtain great power take off, saved unnecessary middle transmission element, guarantee higher transmission efficiency. In combination with the foregoing preferred embodiment, the utility model discloses an [ electric ] motor coach can arrange four wheel limit motors and four motor controller 8, corresponds four groups of wheels 7 on second axle 12 and the third axle 13 respectively to can switch over as required into four motor drive of diaxon or the drive of unipolar bi-motor.

In the utility model discloses an among the [ electric ] motor coach, as shown in fig. 3, except that first axle 11 is as the steer axle, other axles all can set up to the form of unilateral twin tires, and two wheels 7 are all installed to second axle 12, third axle 13 and the respective axial both ends (first end and second end) of fourth axle 14 promptly to have higher bearing capacity. As is known to those skilled in the art, an axle is connected to a vehicle frame (or a vehicle body) via a suspension, wheels are mounted at both lateral ends of the axle, and external forces acting on the vehicle frame and the wheels can be transmitted to each other via the axle. It can be understood from this that the utility model discloses the first end and the second end of each axle refer to the horizontal both ends of corresponding axle promptly.

The body frame of the bearing type body is usually connected into a whole in a welding mode, the welded section bar is easy to shrink and deform, and the structural precision control is difficult to guarantee, so that the fatigue resistance of the whole vehicle cannot reach the design strength, and the service life is influenced. For this purpose, as shown in fig. 4 to 6, the front compartment 1, the middle compartment 2 and the rear compartment 3 are respectively provided with a top frame 15 and a side frame 16, the transverse beam 15A of the top frame 15 and the longitudinal beam 16A at the top of the side frame 16 can be connected by a connecting member 17, and the connecting member 17 can be fixedly connected with the transverse beam 15A and the longitudinal beam 16A by a fastening member such as a rivet, so as to avoid the frame deformation caused by welding and ensure that the whole vehicle has high strength.

Further, as shown in fig. 6, the roof frame 15 may be designed to have an arched cross section to ensure the strength of the vehicle cabin and ensure the head space of passengers standing in the vehicle cabin, thereby improving the convenience of passengers passing through the vehicle cabin. In addition, relative side wall skeleton 16 can set up to the top interval and be less than the bottom interval of the two, and this external force that can bear top skeleton 15 transmits chassis frame 9, is favorable to the promotion of whole car intensity.

The utility model discloses in, roof skeleton 15 and side wall skeleton 16 (and before enclose skeleton and after enclose the skeleton) can adopt aluminium alloy ex-trusions to make, chassis frame 9 can adopt steel section bar to make to can provide stable support for battery package 6 etc..

Referring to fig. 7 and 8, the chassis frame 9 is generally disposed under the floor of the vehicle compartment, and the battery pack 6 may be mounted, and the battery pack 6 may be disposed in a space between the first axle 11 and the second axle 12, between the second axle 12 and the third axle 13, and/or between the third axle 13 and the fourth axle 14, so that the space of the passenger is not occupied, the passenger compartment is maximally secured with a sufficient riding space, and the battery pack 6 is separated from the passenger compartment, thereby securing the safety of the passenger compartment and facilitating the installation and maintenance.

In the illustrated preferred embodiment, the electric motor coach includes four sets of battery packs 6 including: a first group of battery packs 61 consisting of seven batteries on the right side of the front compartment 1 and one battery in front of the right side of the middle compartment 2; a second group of battery packs 62 consisting of five left sides of the front compartment 1 and three front sides of the left side of the middle compartment 2; a third group of battery packs 63 consisting of the rear four on the right side of the middle compartment 2 and the four on the right side of the rear compartment 3; and a fourth group of battery packs 64 consisting of the rear two on the left side of the middle compartment 2 and the six on the left side of the rear compartment 3. The multiple groups of battery packs 6 are arranged according to the equal requirement of the left and right axle loads of each carriage, and the weight born by the two ends of each axle of the whole vehicle can be balanced. According to the difference such as 6 energy density of battery package, duration demand, the utility model discloses an [ electric ] motor coach is not limited to above-mentioned battery package arrangement form and quantity, only needs to install it at the left and right sides of chassis frame 9 with the equal heavy installation of two halves side.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical idea of the utility model within the scope, can be right the utility model discloses a technical scheme carries out multiple simple variant, makes up with any suitable mode including each concrete technical feature. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims

1. An electric motor coach, comprising:

a front compartment (1), the front compartment (1) being provided with a first axle (11) and a second axle (12) spaced apart from each other;

the middle carriage (2) is provided with a third axle (13), and the middle carriage (2) is connected to the tail end of the front carriage (1) through a first hinged connection assembly (4);

the rear carriage (3) is provided with a fourth axle (14), and the rear carriage (3) is connected to one end, far away from the front carriage (1), of the middle carriage (2) through a second hinged connection assembly (5); and the number of the first and second groups,

the power system comprises a battery pack (6) and a driving motor which is electrically connected to the battery pack (6) and is in transmission connection with at least one of the first axle (11), the second axle (12), the third axle (13) and the fourth axle (14).

2. Electric motor coach according to claim 1, characterised in that the first axle (11) is a steering axle, and that the respective first and second ends of the second (12), third (13) and fourth (14) axle are fitted with two wheels (7) respectively.

3. Motor coach according to claim 1, wherein two of said first (11), second (12), third (13) and fourth (14) axles are drive axles, said powertrain system comprising a motor controller (8) signally connected to said drive motors and arranged to be selectively controllable as single or double axle drive,

and/or the driving motor is a wheel-side motor.

4. Electric motor coach according to claim 1, characterised in that it has a chassis frame (9) located under the floor of the passenger compartment, the battery pack (6) being mounted on this chassis frame (9) and located between the first axle (11) and the second axle (12), the second axle (12) and the third axle (13) and/or the third axle (13) and the fourth axle (14).

5. The [ electric ] motor coach according to claim 4, characterized in that the power system comprises a plurality of sets of the battery packs (6) installed at the left and right halves of the chassis frame (9) with equal weight.

6. The electric motor coach according to claim 1, characterized in that the front, middle and rear carriages (1, 2, 3) have top and side frames (15, 16), respectively, and the transverse beam (15A) of the top frame (15) and the longitudinal beam (16A) at the top of the side frame (16) are connected to each other at the junction by a connecting member (17) connected by a fastener.

7. Motor coach according to claim 6, wherein said roof frame (15) is formed with an arched cross-section and/or the top pitch of the opposite side wall frames (16) is smaller than the bottom pitch.

8. Electric motor coach according to claim 1, characterized in that the electric motor coach is provided with doors (10) on both sides and/or that at least one door (10) is provided on each of the front (1), middle (2) and rear (3) compartments.

9. Motor coach according to claim 1, wherein a passenger seat (18) and a wheelchair area are provided in the motor coach.

10. Electric motor coach according to claim 1, characterised in that said first and second articulation assemblies (4, 5) comprise respectively an articulation disc (19) and an articulation canopy (20), which articulation canopy (20) circumferentially closes the space between said front and middle compartments (1, 2, 3).