KR20110059354A - car - Google Patents

Abstract

To maximize space utilization, cars are available that can be equipped with multiple battery modules. An automobile according to an embodiment of the present invention includes a front case and a rear floor forming a floor, and a battery case accommodating a plurality of battery modules coupled to the front floor and the rear floor and generating a current, wherein the battery The case has a front case coupled to the front floor in the front-rear direction, and a rear side coupled to the front case and having a larger left and right width than the front case so as to accommodate a plurality of battery modules. Include the case.

Front Floor, Rear Floor, Battery Module, Battery Case, Battery Carrier

Description

An automobile

The present invention relates to an automobile, and more particularly to an automobile equipped with a plurality of battery modules.

A car is a means of transporting passengers or cargo on the road by generating power from its engine and delivering it to the wheels. Automobiles can be divided into a chassis (body) and the various devices that are organically connected to form a large appearance. The chassis includes the main engines such as power transmission, steering, suspension and braking, as well as the automobile engine that drives driving.

The engine is the driving force for running the automobile. Most automotive engines are four-stroke internal combustion engines. A four-stroke internal combustion engine is an internal combustion engine that finishes one cycle by four strokes of intake, compression, explosion, and exhaust, and is the most common example of a reciprocating engine. Internal combustion engines, which mainly use volatile fuels, compress the fuel in a well-mixed manner to achieve complete combustion with oxygen in the air, and then directly obtain the kinetic energy from the thermal energy generated by the combustion.

Internal combustion engines using these volatile fuels have caused environmental pollution and exhaustion of petroleum resources due to exhaust gas, and as an alternative, electric vehicles powered by electricity have emerged. Electric vehicles are pollution-free cars with no emissions or noise. However, high production costs, low running speeds and short running distances have not been practical.

In recent years, stricter oil prices and tighter emission regulations have accelerated the development of electric vehicles, and the market is growing rapidly.

The problem to be solved by the present invention is to provide a vehicle that can be equipped with a plurality of battery modules to maximize the use of space.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the vehicle according to an embodiment of the present invention, a front floor and a rear floor to form a floor, and a battery that is coupled to the front floor and rear floor and a plurality of battery modules for generating a current is accommodated And a case, wherein the battery case has a front case coupled to the front floor in the front-rear direction, and is formed larger than the front case so as to be coupled to the rear floor and accommodate the plurality of battery modules. It includes a rear case coupled to the front case.

Specific details of other embodiments are included in the detailed description and the drawings.

According to the automobile of the present invention has the following effects.

Since the rear case has a larger left and right width than the front case among the battery cases accommodating a plurality of battery modules, the battery case may be accommodated in the rear case, thereby increasing the driving time of the vehicle.

The effects of the present invention are not limited to the above mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, only the embodiments are to make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, the present invention will be described with reference to the drawings for describing an automobile according to embodiments of the present invention.

1 is a schematic view showing a vehicle body of a vehicle according to an embodiment of the present invention, Figures 2 and 3 is a partially exploded perspective view showing a vehicle according to an embodiment of the present invention.

1 to 3, a vehicle according to an embodiment of the present invention includes a front body 100 in which a motor and a component of a power transmission system are mounted, a central body 200 in which a passenger can ride and sit, And a rear body 300 capable of storing spare tires and other objects.

The hull creates a closed space to place various devices inside and to accommodate occupants or cargo. It is also necessary to have a structure that can open and close a part to facilitate occupants, cargo access, and maintenance of various devices. It is also important to protect occupants, cargo, and various devices from rain, wind, and dust from the outside. In addition, a vehicle body is an external appearance, and the shape of a vehicle body turns into an automobile shape as it is.

The front vehicle body 100 forms well wells and is provided with a motor and a transmission. The front vehicle body 100 is provided with a steering device 110 for adjusting the direction of the rotation axis of the front wheel in order to change the traveling direction of the vehicle, and a front wheel suspension device 120 so that the vibration of the road surface does not directly contact the vehicle body.

The front vehicle body 100 needs to support the front wheel of the front wheel suspension apparatus 120, including the heavy weight of a motor, a transmission, and various auxiliary apparatuses, and is mounted. In addition, in the front wheel drive vehicle, the driving force is also in charge of the front vehicle body 100.

The front vehicle body 100 is broken when the dog is impacted due to an accident or the like to absorb the shock so that a strong force is not transmitted to the cabin. Each part of the front vehicle body 100 is fixed or welded to the front vehicle body with bolts or nuts, and is capable of separating only the outer plate parts such as the front fender and the hood.

The steering device 110 is a device for adjusting the direction of the rotation axis of the front wheel to drive the vehicle in the direction intended by the driver.

The front wheel suspension apparatus 120 supports the front wheel with respect to the vehicle body by appropriate rigidity in directions other than up and down, and supports the up and down direction by a spring and a damping mechanism.

The central vehicle body 200 includes a front floor 210 forming a front side floor, a tunnel 230 provided in the front floor 210 and a battery 600 mounted thereon, and provided at both edges of the front floor. And a side seal panel 229 forming a side surface.

Since the central body 200 is mostly a cabin, i.e., a place for occupants, the interior space is increased as much as possible.

The front floor 210 is a floor in the vehicle interior and is a panel having high strength and a large area. Side seal panels 229 serving as bases of the pillars are connected to the left and right of the front floor 210 from front to back. The tunnel 230 is provided at the center of the front floor 210.

The tunnel 230 is formed to be led upward along the front and rear directions of the front floor 210 so that the battery 600 is mounted. Both sides of the tunnel 230 are coupled with the front floor 210. The tunnel 230 and the front floor 210 are preferably joined by welding. Battery carriers 700 supporting the battery 600 are coupled to both side edges of the tunnel 230. The battery carrier 700 is coupled to the tunnel 230 with a bolt or nut.

The side seal panel 229 may have a rectangular cross-sectional structure, and may include a front pillar (not shown), a center pillar (not shown), or a rear wheel house (not shown). The side seal panel 229 is coupled to both edges of the front floor 210.

The rear body 300 includes a rear floor 310 that forms a rear bottom. The rear vehicle 300 is provided with a rear wheel suspension 330 to prevent the vibration of the road surface directly touching the vehicle body.

The rear body 300 needs to support the rear wheel of the rear wheel suspension 330. In addition, the rear vehicle 300 is responsible for the driving force in the rear wheel drive vehicle.

The rear suspension device 330 supports the rear wheel with respect to the vehicle body by appropriate rigidity in a direction other than up and down, and supports the up and down direction by a spring and a damping mechanism.

The battery 600 supplies a current to the motor. The battery 600 includes a plurality of battery modules 400 generating current and a battery case 500 arranged to surround the plurality of battery modules 400 from the outside to accommodate the plurality of battery modules 400. Include.

The plurality of battery modules 400 are connected to each other in the battery case 500, thereby generating a current having a magnitude capable of driving a vehicle and supplying it to the motor.

4 is a detailed view of a battery module accommodated in the battery case illustrated in FIGS. 2 and 3.

2 to 4, the battery module 400 includes a cartridge 440 forming an appearance, a plurality of cell modules 410 stacked on the cartridge 440 and generating a current, and a cartridge 440. And a cooling plate 420 provided on the side of the plurality of cell modules 410 to absorb heat transferred from the plurality of cell modules 410.

The cartridge 440 includes a cell module case 441 in which each cell module 410 is accommodated, and a cartridge panel 443 supporting the cell module case 441 so that the cell module case 441 is stacked. In addition, according to the embodiment, an additional cartridge panel 443 may be further provided on the stacked cell module case 441.

The cell module 410 generates a current. The current generated by the cell module 410 operates as a current for driving the vehicle. The cell module 410 is formed by stacking a plurality of cells, which are accommodated in each cell module case 441, and are stacked on the cartridge panel 443 together with the cell module case 441.

The plurality of cell module cases 441 and the cartridge panel 443 may be coupled to each other by passing through fastening members such as bolts 450.

Cooling water flows through the cooling plate 420 to absorb the heat transferred from the plurality of stacked cell modules 410 and release the heat to the outside.

5 is a bottom view illustrating a state in which a battery case and a battery carrier of a vehicle are coupled to a vehicle body according to an embodiment of the present invention, and FIG. 6 is an exploded perspective view of the battery case and battery carrier of a vehicle according to an embodiment of the present invention. .

2 to 6, the battery case 500 is formed in a T-shape and is mounted on the front floor 210 and the rear floor 310 of the rear body 300 provided in the central body 200. .

The battery case 500 includes a front case 520 coupled to the front floor 210 and a rear case 540 coupled to the rear floor 310. Here, the rear case 540 is formed to have a larger left and right width than the front case 520 so that a plurality of battery modules 400 can be accommodated and coupled to the front case 520. Therefore, since the battery module 400 may be accommodated in the rear case 540, the driving time of the vehicle may be increased.

The front case 520 is inserted into the tunnel 230 from the lower side of the front floor 210, the rear case 540 is coupled to the rear side member 320 on both sides of the rear floor 310 along the front and rear directions, and It is inserted between the rear cross members 340 coupled along the left and right directions of the rear floor 310.

The tunnel 230 has a carrier coupling portion 233 protruding to the front portion of the battery carrier 700 is coupled to the edge, the rear side member 320 and the rear cross member 340 is the rear of the battery carrier 700 Protruding to the lower side of the rear floor 310 so that the addition is coupled.

On the other hand, the rear case 540 is formed on the side facing the front case 520, the front case coupling portion 549 for coupling with the front case 520. The front case coupling part 549 may be integrally formed with the rear case 540 and coupled to the front case 520 through bolts. Here, the front case coupling portion 549 is not formed in the rear case 540, but may be integrally formed with the front case 520 and coupled to the rear case 540 through a bolt. Hereinafter, the front case coupling unit 549 will be described as limited to the one formed in the rear case 540.

The front case coupler 549 is coupled to the front case 520 so that one of the plurality of battery modules 400 is arranged inside the front case 520.

Some of the plurality of battery modules 400 are arranged in one row in the front and rear directions inside the front case 520, and the remaining of the plurality of battery modules 400 are arranged in the rear case 540 in the front and rear directions. Arranged in columns. In this case, a greater number of battery modules 400 are arranged in the rear case 540 than in the front case 520. In the present embodiment, four battery modules 400 are arranged in one row along the front and rear directions inside the front case coupling unit 549 coupled with the front case 520 and the front case 520, and the inside of the rear case 540. In the following example, only eight battery modules 400 are arranged in two rows along the front-rear direction.

As such, when some of the plurality of battery modules 400 are arranged in one row in the front and rear directions inside the front case 520, the front case 520 is provided in the center of the front floor 210. Since it can be inserted into the mounting, it is possible to minimize the damage to the battery module 400 during the side impact of the vehicle.

In addition, not only the automobile of the present embodiment but also the existing vehicle, the tunnel 230 is provided on the front floor 210, and the fuel tank is provided on the rear floor 310, and a plurality of interiors of the front case 520 are provided. Some of the four battery modules 400 are arranged in one row along the front-rear direction to be mounted in the tunnel 230 of the existing vehicle, and the remaining of the plurality of battery modules 400 inside the rear case 540 in the front-rear direction Since it can be mounted in a row arranged in two rows along the fuel tank of the existing vehicle, to minimize the structural changes to the existing vehicle is equipped with a battery case 500 accommodated a plurality of battery modules 400 can do.

The front case 520 and the rear case 540 include upper and lower cases 522 and 542 and lower and lower cases 524 and 544, respectively, which are divided into upper and lower portions to accommodate the plurality of battery modules 400. In addition, the front case coupling part 549 also includes an upper case 546 and a lower case 548.

The upper cases 522 and 542 are coupled to each other through bolts, and the lower cases 524 and 544 are supported by the upper cases 522 and 542 by being coupled through bolts to the upper cases 522 and 542 coupled to each other. In this embodiment, since the front case coupling part 549 is formed in the rear case 540, the upper case 522 and the upper case 546 of the front case coupling part 549 are coupled to each other through a bolt to form an upper case. 522, 546, 542 are coupled to each other, and the lower cases 524, 548, 544 are supported by the upper cases 522, 546, 542 by being bolted to the upper cases 522, 546, 542 coupled to each other.

In addition, battery module mounting parts 525 and 545 on which the plurality of battery modules 400 are seated are formed in the lower cases 524 and 544, respectively. Among the lower cases 524 and 544, the lower case 524 of the front case 520 has a battery module seating portion 525 formed in one row such that the plurality of battery modules 400 may be arranged in one row along the front and rear directions. In the lower case 544 of the case 540, the battery module seating portions 545 are formed in two rows such that the plurality of battery modules 400 may be arranged in two rows along the front and rear directions. In the present embodiment, the battery module 400 is seated on the lower case 524 of the front case 520 and the lower case 548 of the front case coupling part 549 so that four battery modules 400 may be arranged in one row along the front and rear directions. Four parts 525 are formed in one row, and the battery module seating part 545 is formed in the lower case 544 of the rear case 540 so that eight battery modules 400 can be arranged in two rows along the front-rear direction. Illustrated as being limited to eight formed in a row.

Meanwhile, the battery carrier 700 supports the front case 520 and the rear case 540. The battery carrier 700 is preferably coupled to the central vehicle body 200 and the rear vehicle body 300 by bolts or nuts.

Accordingly, the battery carrier 700 is disposed below the front case 520 and the rear case 540 and is coupled to the front floor 210 and the rear floor 310, thereby providing a front case 520 and a rear case 540. ). In the present embodiment, the battery carrier 700 is coupled to the carrier coupling portion 233 of the tunnel 230, the front portion of which is coupled to the front floor 210, and the rear portion of the rear side member coupled to the rear floor 310 ( 320 is coupled to the rear cross member 340 to support the front case 520 and the rear case 540.

The battery carrier 700 includes a plurality of first support members 720 coupled to the front floor 210 and the rear floor 310 in a lateral direction, and the plurality of first support members 720 to connect the plurality of first support members 720. It includes a plurality of second support member 740 coupled in a direction perpendicular to the first support member 720. Here, the first support member 720 is to reinforce the impact in the left and right direction when the vehicle collision, the second support member 740 is coupled to the direction perpendicular to the first support member 720 to reinforce the impact in the front and rear direction. Thus, an impact is applied to the battery 600 to prevent the battery 600 from being damaged.

Supporting the rear case 540 of the first support member 720 is coupled to the rear side member 320 and the rear cross member 340 by protruding the edge toward the rear floor 310.

Looking at the process of assembling the battery 600 of the vehicle according to an embodiment of the present invention configured as described above to the front floor 210 and the rear floor 310 as follows.

First, the lower case 524 of the front case 520 and the lower case 544 of the rear case 540 are prepared and arranged in a T shape.

Thereafter, the battery modules 400 are seated one by one on each battery module seating part 525 and 545 formed in the lower cases 524 and 544, and are connected to each other.

Subsequently, the upper case 522 of the front case 520 and the upper case 546 of the front case coupling part 549 of the upper case 542 of the rear case 540 are coupled to each other through bolts, thereby providing the upper cases 522 and 542. ) To each other.

Subsequently, the upper cases 522 and 542 coupled to each other are covered with the lower cases 524 and 544 on which the plurality of battery modules 400 are seated, and then coupled to the lower cases 524 and 544 through bolts to complete the battery 600.

Thereafter, the completed battery 600 is seated on the battery carrier 700.

Subsequently, the front case 520 is inserted into the tunnel 230 by coupling the front portion of the battery carrier 700 to the carrier coupling portion 233 formed at the edge of the tunnel 230 coupled to the front floor 210. Supported by the carrier 700, the rear portion of the battery carrier 700 is coupled to the rear side member 320 and the rear cross member 340 coupled to the rear floor 310 so that the rear case 540 is the rear side member. It is supported by the battery carrier 700 while being inserted between the 320 and the rear cross member 340.

As described above, in the vehicle according to the embodiment of the present invention, the rear case 540 of the battery case 500 in which the plurality of battery modules 400 are accommodated has a larger left and right width than the front case 520, and thus the rear case. Since the battery module 400 may be accommodated in the inside of the 540, the driving time of the vehicle may be increased.

Those skilled in the art will appreciate that the present invention can be embodied in other specific forms without changing the technical spirit or essential features of the present invention. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is indicated by the scope of the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalent concept are included in the scope of the present invention. Should be interpreted.

1 is a schematic view showing a vehicle body of an automobile according to an embodiment of the present invention;

2 and 3 is a partially exploded perspective view showing a vehicle according to an embodiment of the present invention,

4 is a detailed view of a battery module accommodated in the battery case illustrated in FIGS. 2 and 3;

5 is a bottom view illustrating a state in which a battery case and a battery carrier of an automobile according to an embodiment of the present invention are coupled to a vehicle body;

6 is an exploded perspective view illustrating a battery case and a battery carrier of a vehicle according to an embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

100: front body 110: steering device

120: front wheel suspension 200: center body

210: front floor 229: side seal panel

230: tunnel 233: carrier coupling portion

300: rear body 310: rear floor

320: rear side member 330: rear suspension

340: rear cross member 400: battery module

500: battery case 520: front case

540: rear case 549: front case coupling portion

600: battery 700: battery carrier

720: first support member 740: second support member

Claims (8)

A front floor and a rear floor forming a floor; And a battery case coupled to the front floor and the rear floor and accommodating a plurality of battery modules generating current. The battery case, A front case coupled to the front floor in the front-rear direction, A vehicle including a rear case coupled to the rear floor and formed to have a larger left and right width than the front case so as to accommodate a plurality of battery modules. The method according to claim 1, Some of the plurality of battery modules are arranged in one row inside the front case, The remaining battery module having a greater number than the number arranged in the front case inside the rear case is arranged in two rows. The method according to claim 2, The rear case is provided with a front case coupling portion coupled to the front case, The front case coupling unit is coupled to the front case, one of the plurality of battery modules are arranged in the interior formed with the front case. The method according to claim 1, And a battery carrier coupled to the front floor and the rear floor, the battery carrier supporting the front case and the rear case. The method according to claim 4, It is coupled along the front and rear directions of the front floor, further comprising a tunnel in which the front case is mounted, The tunnel is a vehicle formed with a carrier coupling protruding to the battery carrier is coupled to the edge. The method according to claim 5, The rear floor members protruding along the front and rear directions are respectively coupled to both sides, and the rear cross members protruding along the left and right directions are coupled to the rear floor. And the battery carrier is coupled to the rear side member and the rear cross member. The method according to claim 4, The battery carrier may include a plurality of first support members coupled to the front floor and a rear floor in left and right directions, and a plurality of first support members coupled to the plurality of first support members so as to connect the plurality of first support members. An automobile comprising a second support member. The method according to claim 1, The front case and the rear case, respectively include an upper case and a lower case divided into upper and lower portions to accommodate the plurality of battery modules, And a battery module seating part in which the plurality of battery modules are seated in the lower case.

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