KR20180037727A - Cooling System of Fuel Cell Vehicle - Google Patents

Abstract

The present invention relates to a cooling system of a fuel cell vehicle, and more specifically relates to a cooling system for a fuel cell vehicle in which a stack radiator for cooling heat generated from a fuel cell stack is arranged at the front while an electronic radiator for cooling heat generated from an electronic part and a condenser for cooling a refrigerant are arranged in left and right sides so as to have an identical height, thereby capable of securing the size of the electronic radiator. The cooling system of a fuel cell vehicle comprises: a first heat exchanger; a second heat exchanger; a third heat exchanger; and a cooling fan.

Description

Technical Field [0001] The present invention relates to a cooling system for a fuel cell vehicle,

[0001] The present invention relates to a cooling system for a fuel cell vehicle, and more particularly, to a cooling system for a fuel cell vehicle, and more particularly to a cooling system for a fuel cell vehicle which includes a radiator for cooling heat generated in an electric component, To a cooling system for a fuel cell vehicle capable of ensuring the size of the full-length radiator.

BACKGROUND ART [0002] A vehicle using an engine having an energy source such as gasoline, diesel, or the like as a driving source is a general vehicle type, and environmental pollution problems as well as new energy sources are increasingly needed. Therefore, fuel cell vehicles driven by fuel cells Have been actively studied and put into practical use.

Generally, a fuel cell vehicle includes electrical components such as a fuel cell stack, a motor driven by electric power generated from the fuel cell stack, and an inverter for controlling the drive of the motor, and the heat generated from the fuel cell stack and electrical components And cooling the fuel cell vehicle.

1 and 2 are views showing a cooling system for a fuel cell vehicle which is formed in front of a fuel cell vehicle engine room to cool heat generated from the fuel cell stack or electrical components.

The conventional cooling system for a fuel cell vehicle includes a stack radiator 10 for cooling the heat generated in the fuel cell stack, a condenser 30 formed in front of the stack radiator 10 for cooling the refrigerant, And at least one cooling fan (40) disposed at the rear of the stack radiator (10). The cooling radiator (20) includes a cooling fan (40) .

The conventional cooling system for the fuel cell vehicle is formed below the condenser 30 in front of the stack radiator 10 in the case of the full length radiator 20 as described above, There is a problem that it can not be increased to a desired size.

In other words, a constant-sized full-length radiator 20 is required to cool the heat generated from the electric component while the amount of generated heat of the electric component is steadily increased. On the contrary, the required minimum height of the condenser 30 There is a limitation in increasing the size of the full-length radiator 20 by the size of the whole length radiator 20.

The conventional cooling system for a fuel cell vehicle requires a filler neck 50 or the like which is a constitution for removing air generated in the full-length radiator 20 for maintaining the cooling performance. In the conventional cooling system for a fuel cell vehicle, The radiator 20 is disposed at the lower portion of the condenser 30 and the pillar neck 50 is disposed at the upper portion of the cooling module to constitute a hose 1 for connecting the electric radiator 20 and the pillar neck 50 There is a problem that not only the manufacturing cost is increased but also the configuration of the cooling system for the fuel cell vehicle becomes complicated.

KR 2011-0058454

SUMMARY OF THE INVENTION The present invention is conceived to solve the above-mentioned problems, and it is an object of the present invention to provide an electric vehicle radiator which is disposed in front of a stack radiator for cooling heat generated in a fuel cell stack, A cooling system for a fuel cell vehicle including a cooling module capable of ensuring the size of the full-length radiator by arranging a condenser for cooling the coolant to the left and right so as to have the same height.

A cooling system for a fuel cell vehicle according to the present invention is provided in front of an engine room of a fuel cell vehicle including a fuel cell stack, a motor driven by electric power generated in the fuel cell stack, and electric components for controlling driving of the motor A cooling system for a fuel cell vehicle cooling the heat generated from the fuel cell stack, a motor, and electric components, wherein the cooling system for the fuel cell vehicle includes a cooling system for cooling a first heat exchange medium containing heat generated in the fuel cell stack 1 heat exchanger; A second heat exchanger formed in front of the first heat exchanger for cooling a second heat exchanging medium including heat generated from the motor or electric component; A third heat exchanger having the same height on one side of the second heat exchanger in front of the first heat exchanger and cooling the refrigerant; And a cooling fan formed behind the first heat exchanger.

The first heat exchanger may include a first header tank and a second header tank spaced apart from each other, a first inlet pipe formed in the first header tank or the second header tank to receive the first heat exchange medium, And a first tube through which the heat exchange medium flows, with both ends thereof fixed to the first header tank and the second header tank.

The cooling system for a fuel cell vehicle may further include a filler neck formed on the first heat exchanger or the second heat exchanger.

In addition, the first inlet pipe is disposed adjacent to a region where the first heat exchanger and the third heat exchanger overlap.

Also, in the cooling system for a fuel cell vehicle, the air passing through the third heat exchanger by the cooling fan is colder than the air passing through the second heat exchanger.

The cooling system for a fuel cell vehicle according to the present invention is arranged in front of a stack radiator for cooling heat generated in a fuel cell stack, and has an electric length radiator for cooling heat generated in electric components and a condenser for cooling the refrigerant to have the same height It is advantageous in that the size of the full-length radiator can be secured regardless of the height of the condenser.

In addition, the cooling system for a fuel cell vehicle according to the present invention can secure the size of the full-length radiator irrespective of the height of the condenser, thereby effectively cooling the heat generated from the electric component.

In the cooling system for a fuel cell vehicle according to the present invention, the condenser and the full-length radiator are disposed on the front side of the stack radiator so that there is no need to additionally provide a hose for separately connecting the filler neck and the full- .

1 is a view showing a conventional cooling system for a fuel cell vehicle.
2 is a view of a conventional cooling system for a fuel cell vehicle viewed from the side.
3 shows a cooling system for a fuel cell vehicle according to the present invention.
Fig. 4 is another diagram showing a cooling system for a fuel cell vehicle according to the present invention. Fig.
5 is a view showing an embodiment for increasing the efficiency of the cooling system for a fuel cell vehicle according to the present invention as viewed from above.

Hereinafter, a cooling system for a fuel cell vehicle according to the present invention as described above will be described in detail with reference to the accompanying drawings.

FIG. 3 is a view showing a cooling system for a fuel cell vehicle according to the present invention, FIG. 4 is still another drawing showing a cooling system for a fuel cell vehicle according to the present invention, and FIG. 5 is a cross- FIG. 5 is a view showing an embodiment for increasing the efficiency of the system. FIG.

3 to 4, a cooling system 1000 for a fuel cell vehicle according to the present invention includes a fuel cell stack, a motor driven by power generated from the fuel cell stack, and an electric field A cooling system for a fuel cell vehicle, which is provided in front of an engine room of a fuel cell vehicle including components, for cooling heat generated from the overheated battery stack, a motor, and electrical components, 1 heat exchanger 100, a second heat exchanger 200, and a third heat exchanger 300, and may further include a cooling fan 400.

The first heat exchanger 100 may be a stack radiator, and may include a first header tank 110 formed to be spaced apart from the first heat exchanger medium, And a second header tank (120).

The first heat exchanger 100 may include a first inlet pipe 130 through which the first heat exchange medium flows into the first header tank 110 or the second header tank 120 and a second inlet pipe 130 through which the first heat exchange medium is discharged And a first outlet pipe (140).

The first heat exchanger 100 includes a plurality of first tubes 150 having both ends fixed to the first header tank 110 and the second header tank 120, The first pin 15 is interposed.

The first heat exchanging medium flowing through the first tube 150 flows through the first tube 150 and the first heat exchanging medium flowing through the first tube 150 flows through the first tube 150, The heat generated in the fuel cell stack can be cooled.

As described above, the first heat exchanger 100 can cool the first heat exchange medium according to a shape and a principle similar to those of a radiator provided in a general internal combustion engine, and it is a well- Is omitted.

The second heat exchanger 200 may be an electric-field radiator, and is formed in front of the first heat exchanger 100 to cool the second heat exchange medium including heat generated from the motor or electrical components.

At this time, the forward direction is the direction in which air for heat exchange with the configurations of the cooling system 1000 for a fuel cell vehicle according to the present invention flows.

The second heat exchanger 200 may include a third header tank 210 and a fourth header tank 220 spaced left or right or up and down like the first heat exchanger 100, The header tank 210 or the fourth header tank 220 includes a second inlet pipe 230 through which the second heat exchange medium is introduced and a second outlet pipe 240 through which the second heat exchange medium is discharged.

The second heat exchanger 200 includes a second tube 250 having both ends fixed to the third header tank 210 and the fourth header tank 220 in the same manner as the first heat exchanger 100, And a second fin 251 interposed between the second tubes 250. The air flowing through the second fin 251 flows through the second inlet pipe 230 and flows into the second tube 250 ) Is heat-exchanged, thereby cooling the heat generated from the electric component or the motor.

Since the second heat exchanger 200 also has a shape and a principle similar to those of the first heat exchanger 100, detailed description of the shape and principle of the second heat exchanger 200 will be omitted.

The first heat exchange medium and the second heat exchange medium described above are cooling water or the like and are names given for the explanation of the heat exchange medium flowing into the first heat exchanger 100 and the second heat exchanger 200, The heat exchange medium and the second heat exchange medium may be formed of the same material or different materials.

The third heat exchanger 300 may be a condenser and has the same height on one side of the second heat exchanger 200 in front of the first heat exchanger 100 to cool the refrigerant.

The third heat exchanger 300 also includes a fifth header tank 310 and a sixth header tank 320 spaced apart from each other in the left or right direction or the upper and lower sides of the fifth header tank or the sixth header tank 320, A third inlet pipe (not shown) and a third outlet pipe (not shown) through which the refrigerant is introduced and discharged.

A third tube 350 having both ends thereof fixed to the fifth header tank 310 and the sixth header tank 320 through which refrigerant flows and a third pin 351 interposed between the third tubes 350 ). ≪ / RTI >

The first heat exchanger 100, the second heat exchanger 200, and the third heat exchanger 300 may be disposed at the rear of the first heat exchanger 100. The first heat exchanger 100, the second heat exchanger 200, So that heat exchange is possible.

The third heat exchanger 300 and the cooling fan 400, such as the above-described condenser, are also known technologies and detailed description thereof will be omitted.

As described above, in the cooling system 1000 for a fuel cell vehicle according to the present invention, the second heat exchanger 200 and the third heat exchanger 300 formed in front of the first heat exchanger 100 have the same height As shown in FIG.

That is, unlike the conventional cooling system for the fuel cell vehicle in which the second heat exchanger 200 is disposed below the third heat exchanger 300 and can not increase in size, the cooling system for the fuel cell vehicle according to the present invention The second heat exchanger 200 and the third heat exchanger 300 are disposed to the left and right so as to have the same height to secure the minimum height for the cooling operation of the third heat exchanger 300, The second heat exchanger 200 also has an advantage in that it can be cooled corresponding to the amount of heat generated in the electric component by securing a necessary height for cooling the heat generated in the electric component.

The first heat exchanger 100 includes a first inlet pipe 130 into which a first heat exchange medium for heat exchange with the air passing through the first heat exchanger 100 flows, The first inlet pipe 130 is preferably disposed adjacent to a region where the first heat exchanger 100 and the third heat exchanger 300 overlap.

Will be described in more detail with reference to FIGS. 3 to 5. FIG.

The first heat exchanger (100) includes a second heat exchanger (200) and a third heat exchanger (300) arranged in the left-right direction in front, and the air introduced by the cooling fan (400) Exchanges heat between the first heat exchanger (200) and the third heat exchanger (300), and then passes through the first heat exchanger (100).

At this time, in the case of the second heat exchanger 200 and the third heat exchanger 300 through which the air passes, the air that has passed through the third heat exchanger 300 passes through the air passing through the second heat exchanger 200 In the case of the first heat exchanger 100, the portion having the first inlet pipe 130 through which the first heat exchange medium is introduced into the first heat exchanger 100 is cooled by the flow rate of the first heat exchange medium 100, Have relatively many features.

The first inlet pipe 130 having the largest flow rate is connected to the first header tank 110 in the region overlapping the third heat exchanger 300. The first inlet pipe 130 flows through the first heat exchanger 100, Or the second header tank 120 and the air having passed through the third heat exchanger 300 is passed to the position where the first inlet pipe 130 is formed so that the air passing through the second heat exchanger 200 The cooling performance can be improved even at the same flow rate by supplying relatively cool air.

At this time, the first heat exchanger 100 is formed at a position where the position of the first inlet pipe 130 is overlapped with the third heat exchanger 300 to improve the cooling performance of the first heat exchange medium, The position of the first outlet pipe 140 through which the first heat exchange medium heat exchanged in the apparatus 100 is discharged is not limited.

The cooling system 1000 for a fuel cell vehicle according to the present invention may be formed on the first heat exchanger 100 or the second heat exchanger 200 and may be installed in the first heat exchanger 100 or the second heat exchanger 200, And a filler neck 500 for discharging air to the outside.

The filler neck 500 is configured to remove air inside the heat exchanger to prevent the performance of the first heat exchanger 100 or the second heat exchanger 200 from being deteriorated due to the generation of air. The first heat exchanger 100 and the second heat exchanger 200 may be installed on the first heat exchanger 100 and the second heat exchanger 200, respectively.

The first header tank 110 and the second header tank 120 of the first heat exchanger 100 and the second header tank 120 of the first heat exchanger 100 and the second header tank 120 of the first heat exchanger 100 may be formed in the header tank. The third header tank 210 and the fourth header tank 220 of the first header tank 110 and the second header tank 120 may be spaced apart from each other. The filler neck 500 may include a first header tank 110, a second header tank 120, The third header tank 210, and the fourth header tank 220, as shown in FIG.

As described above, the filler neck 500 can perform the function as a passage for replenishing and exchanging the heat exchange medium as well as controlling the pressure by removing the air inside the heat exchanger.

As described above, unlike the conventional cooling system for a fuel cell vehicle in which a full-length radiator is disposed under a condenser, the cooling system 1000 for a fuel cell vehicle according to the present invention has the same A second heat exchanger 200 such as an electric-field radiator and a third heat exchanger 300 such as a condenser are arranged on the left and right so as to have a height so that a hose connecting a filler neck and an electric radiator in a conventional cooling system, It is possible to solve the problem of having a filler neck.

This eliminates the need for a hose or a separate filler neck, so that not only the manufacturing cost is reduced but also the structure of the cooling system for the fuel cell vehicle is simplified.

1000: Fuel cell vehicle cooling system
100: first heat exchanger
110: first header tank 120: second header tank
130: first inlet pipe 140: first outlet pipe
150: first tube 151: first pin
200: second heat exchanger
210: third header tank 220: fourth header tank
230: second inlet pipe 240: second outlet pipe
250: second tube 251: second pin
300: third heat exchanger
310: fifth header tank 320: sixth header tank
350: third tube 351: third pin
400: cooling fan
500: Filler Neck

Claims (5)

A fuel cell system comprising: a fuel cell stack; a fuel cell stack disposed in front of an engine room of a fuel cell vehicle including a motor driven by electric power generated in the fuel cell stack and an electric component for controlling driving of the motor, A cooling system for a fuel cell vehicle cooling a generated heat,
The cooling system 1000 for a fuel cell vehicle includes:
A first heat exchanger (100) for cooling a first heat exchange medium containing heat generated in the fuel cell stack;
A second heat exchanger (200) formed in front of the first heat exchanger (100) for cooling a second heat exchange medium including heat generated from the motor or electrical components;
A third heat exchanger (300) having the same height at one side of the first heat exchanger (100) in the front side of the second heat exchanger (200) and cooling the refrigerant; And
And a cooling fan (400) formed behind the first heat exchanger (100).
The method according to claim 1,
The first heat exchanger (100)
A first header tank 110 and a second header tank 120 spaced apart from each other,
A first inlet pipe 130 and a first outlet pipe 140 formed in the first header tank 110 or the second header tank 120 and through which the first heat exchange medium flows,
And a first tube (150) having both ends fixed to the first header tank (110) and the second header tank (120) and through which the heat exchange medium flows.
3. The method of claim 2,
The cooling system 1000 for a fuel cell vehicle includes:
Further comprising a filler neck (500) formed on the first heat exchanger (100) or the second heat exchanger (200).
The method of claim 3,
The first inlet pipe (130)
Is disposed adjacent to a region where the first heat exchanger (100) and the third heat exchanger (300) overlap.
The method of claim 3,
The cooling system for the fuel cell vehicle
Wherein the air passing through the third heat exchanger (300) by the cooling fan (400) is cooler than the air passing through the second heat exchanger (200).

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