KR20110059353A - Automobile - Google Patents

Abstract

PURPOSE: An automobile is provided to effectively cool the heat generated from a cell module since a cooling plate is included in the lateral side of a cell module, and to rapidly transfer the heat generated from the cell to the cooling plate. CONSTITUTION: An automobile comprises a cartridge(440) forming an outer shape, a plurality of cell modules(410) which is laminated in the cartridge and discharges current, and cooling plates(420) which is included in the cartridge and is included in the lateral side of plurality of cell modules to absorb the heat transferred from a plurality of cell modules. The cell module comprises a plurality of cells discharging current and a heat-dissipating plate.

Description

Car {Automobile}

The present invention relates to an automobile, and more particularly, to an automobile having an improved cooling device of a battery module.

The automobile, which has emerged by the invention of the internal combustion engine, is an indispensable necessity in human life, but it causes energy depletion due to the main cause of environmental pollution and the consumption of enormous energy. Electric vehicles, hydrogen fuel or internal combustion engines and hybrid vehicles in combination with these are being developed and used.

Electric vehicles (EVs) are mainly powered by AC or DC motors using battery power, and are mainly classified into battery-only electric vehicles and hybrid electric vehicles. Using a motor to drive and recharging when the power is exhausted, the hybrid electric vehicle can run the engine to generate electricity to charge the battery and drive the electric motor using this electricity to move the car.

In addition, hybrid electric vehicles can be classified into a series and a parallel method, in which the mechanical energy output from the engine is converted into electrical energy through a generator, and the electrical energy is supplied to a battery or a motor so that the vehicle is always a motor. It is a driven vehicle that adds an engine and a generator to increase the mileage of an existing electric vehicle, and the parallel method allows the vehicle to be driven by battery power and drives the vehicle only by the engine (gasoline or diesel). Using a power source and depending on the driving conditions, the parallel method allows the engine and motor to drive the vehicle simultaneously.

In addition, the motor / control technology has also been developed recently, a high power, small size and high efficiency system has been developed. As the DC motor is converted to an AC motor, the output and EV power performance (acceleration performance, top speed) are greatly improved, reaching a level comparable to that of gasoline cars. As the motor rotates with high output, the motor is light and compact, and the payload and volume are greatly reduced.

However, such an electric vehicle has a problem in that the output and the driving distance are insufficient as compared to the engine driving method because the electric vehicle drives the system using only the power of a battery provided as one. Accordingly, it is necessary to improve the output and the driving distance of the electric vehicle by providing a plurality of motors and batteries in the electric vehicle and varying the driving method of the plurality of motors according to a preset driving mode.

The problem to be solved by the present invention is to provide a vehicle improved the cooling device of the battery module.

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, an automobile according to an embodiment of the present invention,

A cartridge forming an appearance; A plurality of cell modules stacked on the cartridge and configured to discharge current; And a cooling plate provided in the cartridge and provided on a side surface of the plurality of cell modules to absorb heat transferred from the plurality of cell modules. .

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

According to the vehicle of the present invention has one or more of the following effects.

First, the cooling plate is provided on the side of the cell module can effectively cool the heat generated from the cell module.

Second, the heat sink is provided inside the cell module, it is possible to quickly transfer the heat generated from the cell to the cooling plate.

Third, the heat sink is formed to surround the cell, the heat generated in the cell is effectively transferred to the cooling plate.

Fourth, since the thermal pad is compressed between the heat sink and the cooling plate, heat generated from the heat sink is effectively transferred to the cooling plate.

Fifth, the cartridge is provided with a cell module case, a cartridge panel and a cooling plate seat, and can integrally fasten the cell module and the cooling plate.

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, and only the embodiments make the disclosure of the present invention complete, and the general 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 diagram illustrating a vehicle body of a vehicle according to an embodiment of the present invention. 2 and 3 are partially exploded perspective views showing a vehicle according to an embodiment of the present invention.

1 to 3 is a vehicle according to an embodiment of the present invention, the front vehicle body 100 is mounted with a motor and a component of the power transmission system, the central vehicle body 200 that can be seated and occupants, It is configured to include a rear vehicle 300 that can store spare tires and other things.

The vehicle bodies 100 to 300 form a closed space to arrange various devices therein and 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, the shape of the vehicle bodies 100 to 300 is the appearance of the vehicle as it is.

The front vehicle body 100 forms a well well and is provided with a motor and a transmission. The front vehicle body 100 includes a steering apparatus 110 for adjusting the direction of rotation of the front wheel in order to change the traveling direction of the vehicle, and a front wheel suspension apparatus 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 wheels of the front wheel suspension apparatus 120, including a heavy load such as a motor, a transmission, and various auxiliary equipment. In addition, the front vehicle body 100 is also responsible for the driving force in the front wheel drive vehicle.

The front vehicle body 100 is broken when the dog is shocked due to an accident, so as 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 wheels with respect to the vehicle body by appropriate rigidity in directions other than up and down, and supports the up and down directions by springs and damping mechanisms.

The central vehicle body 200 includes a front floor 210 forming a front bottom, a tunnel 230 provided in the front floor and a battery 500 mounted thereon, and a lower side surface formed at both edges of the front floor. The side seal panel 229 is included.

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 panel in the interior of the vehicle with high strength and wide 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 so that the battery 500 is mounted. Both sides of the tunnel 230 are coupled to the front floor 210. The tunnel 230 and the front floor 210 are preferably joined by welding. Battery carriers 600 supporting the battery 500 are coupled to both side edges of the tunnel 230. The battery carrier 600 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 vehicle body 300 includes a rear floor 310 forming a rear side 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 vehicle 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 wheel suspension 330 supports the rear 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 battery 500 supplies a current. The battery 500 is formed in a T-shape, and is preferably mounted on the tunnel 230 of the central vehicle 200 and the rear floor 310 of the rear vehicle 300.

The battery 500 is composed of a plurality of battery modules 400. The battery module 400 will be described later with reference to FIG. 4.

The battery carrier 600 supports the battery 500. The battery carrier 600 is preferably coupled to the central vehicle body 200 and the rear vehicle body 300 by bolts or nuts.

4 is a perspective view showing a battery module 400 according to an embodiment of the present invention, Figure 5 is an exploded perspective view of the battery module 400 according to an embodiment of the present invention.

4 and 5, a vehicle equipped with a battery module 400 according to an embodiment of the present invention includes a cartridge 440 forming an exterior, and a cartridge 440 stacked on the cartridge 440 to discharge current. A plurality of cell modules 410 and a cooling plate 420 provided on the cartridge 440 and provided on side surfaces of the plurality of cell modules 410 to absorb heat transferred from the plurality of cell modules 410. It is configured by.

The cartridge 440 forms the exterior of the battery module 400. The cartridge 440 includes a plurality of stacked cell modules 410 and a cooling plate 420 that absorbs heat transferred from the cell modules 410.

The cartridge 440 is provided with a cooling plate seat 447 to seat the cooling plate 420. The cartridge 440 has a cooling plate seat 447 formed at one side thereof such that the cooling plate 420 is provided at the side of the cell module 410. The cooling plate seating part 447 is in contact with the thermal pad 430 which cuts heat with the cooling plate 420, and the thermal pad 430 is in contact with the heat transfer part 415 of the heat sink 413 described later.

The thermal pad 430 is in contact with the heat transfer part 415. The heat transfer part 415 is formed at one side of the heat sink 413 described later. The heat transfer part 415 may be formed of a material having excellent thermal conductivity and may be formed in a flat shape so as to transfer heat to the cooling plate 420 through the thermal pad 430. A coupling relationship between the thermal pads 430 will be described later.

The cell module 410 discharges a current. The current discharged from the cell module 410 operates as a current for driving the vehicle. A plurality of cell modules 410 are stacked. The cell module 410 is stacked on the cartridge 440 to form one battery module 400. A detailed configuration of the cell module 410 will be described later with reference to FIG. 6.

The cooling plate 420 absorbs heat transferred from the plurality of stacked cell modules 410. The cooling plate 420 transfers the heat transmitted from the cell module 410 to the outside by the coolant flowing. Since the coolant discharges heat to the outside, the heat of the cell module 410 is released, thereby preventing the life of the cell module 410 from shortening due to the heat generated by the cell module 410. The cell module 410 and the cooling plate 420 may be heat transfer by the thermal pad 430. The cooling plate 420 is fastened to the cartridge 440 by bolts, and the thermal pad 430 is compressed between the heat transfer part 415 and the cooling plate 420. This compression allows better heat transfer. In addition, according to the embodiment, the thermal pad 430 is not provided, and the cell module 410 and the cooling plate 420 may be in direct contact with each other so that heat transfer may be performed. The detailed configuration of the cooling plate 420 will be described later with reference to FIG. 7.

The cartridge 440 illustrated in FIG. 5 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. It is configured to include).

The cell module 410 is accommodated in the cell module case 441. A plurality of cell module cases 441 may be stacked in the cartridge 440. The cartridge panel 443 is provided under the cell module case 441 so that the cell module case 441 is stacked to support the cell module case 441. In addition, according to an embodiment, an additional cartridge panel 443 may be further provided on the stacked cell module cases 441 to form one battery module 400.

The cell module case 441 has a hollow 417 formed at one side thereof, and a cartridge fastening portion 445 is formed at the cartridge panel 443 so that a screw passing through the hollow 417 may be fastened. As disclosed in FIG. 5, a hollow 417 may be formed at an edge or one end of the cell module case 441. When the cell module case 441 containing the cell module 410 is stacked on the cartridge panel 443, the hollows 417 of the cell module case 441 are coaxially aligned. The cartridge panel 443 has a fastening portion formed such that the fastening means penetrating the hollow 417 is fastened to the cartridge panel 443. In a preferred embodiment, a screw is fastened to the hollow 417 by a fastening means, and a screw fastening portion 445 may be formed at a fastening portion of the cartridge panel 443. The fastening means described above includes all fastening means capable of fastening the cell module case 441 integrally through the hollow 417 in addition to the screw. According to each embodiment of the fastening means, corresponding fastening portions are formed.

6 illustrates a cell module 410 according to an embodiment of the present invention.

Referring to FIG. 6, the cell module 410 according to an embodiment of the present invention includes a plurality of cells 411 for discharging current and a heat sink 413 for receiving heat generated from the cells 411. It is configured by.

Cell 411 is the smallest unit for supplying current. Cell 411 includes any secondary or fuel cell that generates a current. The cell 411 is formed by stacking a plurality of cells. The plurality of cells 411 send current to the electrodes formed on one side. In a preferred embodiment, two cells 411 are preferably stacked, but embodiments of the present invention are not limited thereto.

The heat sink 413 receives heat generated from the cell 411. The heat sink 413 is preferably formed of a metal material that conducts heat, and may be formed of aluminum or copper, but embodiments of the present invention are not limited thereto.

The heat sink 413 is formed to surround the cell 411, and a heat transfer part 415 is formed to transfer heat to the cooling plate 420 on one side. The heat sink 413 surrounds the cell 411 to effectively absorb heat generated from the cell 411 to transfer heat to the cooling plate 420. One side of the heat sink 413 may be formed by bending the heat transfer part 415 of the same material as the heat sink 413. The heat transfer part 415 is formed to be in flat contact with the thermal pad 430. The thermal pad 430 contacts the cooling plate 420 and transfers heat to the cooling plate 420. In addition, according to the embodiment, the thermal pad 430 is not provided, and the heat transfer part 415 and the cooling plate 420 may be in direct contact with each other to perform heat transfer.

The heat sink 413 is provided above and below the cell 411. The heat sink 413 is provided on the upper side and the lower side of the cell 411 at the same time to surround the cell 411, when two cells 411, which is a preferred embodiment, are stacked, the heat sink 413 provided on the upper side Heat is transferred from the cell 411. The heat sink 413 provided on the lower side receives heat from the lower cell 411.

The thermal pad 430 is provided between the heat sink 413 and the cooling plate 420 to transfer the heat from the heat sink 413 to the cooling plate 420. The thermal pad 430 is provided between the cooling plate 420 and the cell module 410 disclosed in FIG. 4. The thermal pad 430 is in contact with the cell module 410, and one side is in contact with the heat transfer part 415 of the heat sink 413 provided in the cell module 410. The other side is provided in the cooling plate 420, and transfers the heat received from the heat transfer unit 415 to the cooling plate 420. The thermal pad 430 may be formed of a material having excellent thermal conductivity, and may be formed in a flat shape. In addition, a thermal pad mounting portion (not shown) on which the thermal pad 430 is seated may be formed in the cartridge 440 such that the thermal pad 430 is provided on the side surface of the cell module 410.

7 is a cross-sectional view of the cooling plate 420 according to an embodiment of the present invention.

Referring to FIG. 7, the cooling plate 420 is provided with a cavity 423 having an empty inside, and a plurality of ribs 421 forming a flow path are formed in the cavity 423.

The cooling plate 420 is formed with a cavity 423 that is empty inside so that the cooling water flows. External cooling water enters the inside of the cooling plate 420 to the cavity 423 of the cooling plate 420 to receive the heat received from the cell module 410. Cooling water exits to the outside to exchange heat, cool down to a predetermined temperature, and enter the cooling plate 420.

A plurality of ribs 421 forming a flow path are formed in the cavity 423 of the cooling plate 420. A flow path is formed to allow the coolant to flow inside the cooling plate 420, and a plurality of ribs 421 protruding to form the flow path are formed. The rib 421 may form various types of flow paths through which cooling water may flow. The rib 421 enlarges the surface area inside the cooling plate 420, so that heat exchange with the cooling water occurs better. In addition, the plurality of ribs 421 support the lateral direction of the cooling plate 420, so that the durability to the lateral direction is increased. The plurality of ribs 421 also allows the coolant to form turbulent flow in the cavity 423 so that heat exchange occurs better.

The cooling plate 420 is formed to pass through the cooling water that transfers heat transferred to the cooling plate 420 to the outside. The induction may be formed by the rib 421 to allow the cooling water to flow, and according to another embodiment, the cooling water may be formed to pass through the cooling plate 420. An empty cavity 423 may be formed in the cooling plate 420, and each partition may be formed in the cavity 423 such that the cooling plate 420 may be formed to cool the cooling water through the respective compartments. . In addition, only the inner cavity 423 may be formed to pass through the cooling water, and the above-described embodiment does not limit the embodiment of the present invention.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

1 is a view schematically showing the internal configuration of an electric vehicle according to an embodiment of the present invention.

2 and 3 are partially exploded perspective views showing a vehicle according to an embodiment of the present invention.

4 is a perspective view showing a battery module according to an embodiment of the present invention, Figure 5 is an exploded perspective view of a battery module according to an embodiment of the present invention.

6 is a view showing a cell module according to an embodiment of the present invention.

7 is a cross-sectional view of a cooling plate according to an embodiment of the present invention.

Claims (10)

A cartridge forming an appearance; A plurality of cell modules stacked on the cartridge and configured to discharge current; And A cooling plate provided in the cartridge and provided on a side surface of the plurality of cell modules to absorb heat transferred from the plurality of cell modules; Car including. The method of claim 1, The cell module, A plurality of cells for discharging current; And A heat sink receiving heat generated from the cell; Car including. The method of claim 2, The heat sink is formed to surround the cell, the vehicle is formed with a heat transfer portion to transfer heat to the cooling plate on one side. The method of claim 2, The heat sink is provided on the upper side and the lower side of the cell. The method of claim 2, And a thermal pad provided between the heat sink and the cooling plate to transfer the heat from the heat sink to the cooling plate. The method of claim 1, The cooling plate is formed with a hollow inside, And a plurality of ribs formed in the cavity to form a flow path. The method of claim 1, The cooling plate is formed so that the cooling water for passing the heat transferred to the cooling plate to the outside. The method of claim 1, The cartridge is a vehicle in which a cooling plate seating portion is formed so that the cooling plate is seated. The method of claim 1, The cartridge, A cell module case accommodating each cell module; And A cartridge panel for supporting the cell module case so that the cell module case is stacked; Car including. 10. The method of claim 9, The cell module case, the hollow is formed on one side, The cartridge panel, the screw fastening portion is formed so that the screw passing through the hollow is formed.

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