KR102512527B1 - Cooling system including hydrogen tank - Google Patents

Abstract

A cooling system of a fuel cell vehicle having a fuel cell of the present invention includes: a cooling device that introduces and cools a heated refrigerant, and cools and discharges the cooled refrigerant; an input refrigerant supply line for supplying the refrigerant heated in the fuel cell vehicle to a cooling device; a refrigerant supply line for supplying the cooled refrigerant to the fuel cell vehicle; a fuel tank configured to store fuel to be supplied to a fuel cell; and a fuel supply line for supplying fuel to the fuel cell. The fuel tank can be configured to be inserted into the cooling device unit.

Description

Cooling system including hydrogen tank}

The present invention relates to a cooling system for a vehicle, and more particularly to a cooling system including a hydrogen tank.

A fuel cell electric vehicle (FCEV) is a vehicle powered by hydrogen, unlike conventional internal combustion engine vehicles. In general, hydrogen used as a fuel for a fuel cell vehicle may be compressed at high pressure and stored in a tank, or cryogenic liquid hydrogen may be directly stored in a tank for use.

The method of directly storing and using cryogenic liquid hydrogen can store about 2.5 to 7 times more hydrogen in the same volume than the case of storing and using it in a high-pressure compression tank. The delivery devices are each independent and have a connection structure. These devices are expensive, which increases the production cost of fuel cell vehicles and may act as a barrier to the popularization of fuel cell vehicles. In addition, a device for injecting hydrogen fuel has a complicated structure and a durability problem.

On the other hand, since the high-pressure compression and storage method compresses the hydrogen fuel to a high pressure and charges it in the tank, the material constituting the tank is also made of a special metal material and compressed to store a large amount of hydrogen in a tank of a predetermined capacity. A special material (carbon fiber, etc.) that can withstand high pressure must be used, and high-pressure compressed hydrogen must not leak. In addition, the size of the tank is increased to store a large amount of high-pressure hydrogen.

A vehicle using a fuel cell stack requires a cooling system that controls a temperature rise generated during charging and discharging of a battery part. In addition, fuel cell vehicles It is composed of numerous electronic elements, and in order to smoothly drive these electronic elements, the size of each system must be provided. This is very unfavorable in terms of space utilization or cost.

An object of the present invention is to provide a cooling system including a fuel tank for storing cryogenic hydrogen with a simplified structure.

An object of the present invention is to provide a cooling system having a structure in which a plurality of cooling units in which a fuel tank is integrated are disposed in parallel.

In addition, an object of the present invention is to provide a cooling system capable of maximizing energy efficiency by storing and reusing cold air generated during vaporization of liquid hydrogen as a refrigerant.

Another object of the present invention is to provide a cooling system including a hydrogen tank capable of integrally controlling cooling of a fuel cell vehicle.

A fuel cell vehicle having a fuel cell of the present invention for the purpose of solving the above problems includes a cooling device configured to introduce and cool a heated refrigerant, and cool and discharge the cooled refrigerant; an input refrigerant supply line for supplying refrigerant heated in the fuel cell vehicle to the cooling device; a refrigerant supply line for supplying the cooled refrigerant to the fuel cell vehicle; a fuel tank configured to store fuel to be supplied to the fuel cell; and a fuel supply line for supplying fuel to the fuel cell. The fuel tank may be configured to be inserted into the cooling device unit.

In the cooling system, at least one fuel tank is inserted into the cooling device, and a plurality of the cooling devices into which the fuel tanks are inserted may be arranged in parallel.

The cooling system may further include a cooling material for preserving the temperature of the cooling device. Each cooling device into which the at least one fuel tank is inserted may be covered with the cooling material, or a plurality of cooling devices arranged in parallel may be collectively covered with the cooling material.

The fuel and the refrigerant are made of different materials, and the cooling system includes a compressor for compressing and cooling the heated refrigerant introduced from the input refrigerant supply line; and a dispenser for spraying the refrigerant compressed and cooled by the compressor to the cooling device. A refrigerant output line may be coupled to the cooling device and the compressor to supply the cooled refrigerant from the cooling device to the compressor. A refrigerant input line may be coupled to the dispenser and the compressor to supply compressed and cooled refrigerant from the compressor to the dispenser.

The fuel and the refrigerant are made of the same material, and the cooling system includes a compressor for compressing and cooling the heated refrigerant introduced from the input refrigerant supply line; and a dispenser for injecting the refrigerant into the cooling device. The fuel may be supplied to the fuel cell from at least one of the fuel tank and the cooling device.

A refrigerant output line may be coupled to the cooling device and the compressor to supply the cooled refrigerant from the cooling device to the compressor. A refrigerant input line may be coupled to the compressor and the fuel tank to store the refrigerant as the fuel into the fuel tank.

A supplemental refrigerant line is coupled to the dispenser and the fuel tank so that fuel from the fuel tank can be injected as the refrigerant to the cooling device.

The fuel and the refrigerant are made of the same material, and the cooling system includes a compressor for compressing and cooling the heated refrigerant introduced from the input refrigerant supply line; and a dispenser for spraying the refrigerant compressed and cooled by the compressor to the cooling device. The fuel may be supplied to the fuel cell from at least one of the fuel tank and the cooling device.

A refrigerant output line may be coupled to the fuel tank and the compressor to supply the refrigerant cooled from the cooling device to the compressor. A refrigerant input line may be coupled to the dispenser and the compressor to supply a portion of the refrigerant compressed and cooled from the compressor to the dispenser.

The refrigerant system includes an output valve coupled to the refrigerant output line; and an input valve coupled to the refrigerant input line. A supplemental refrigerant output line is coupled to the output valve and the cooling device to additionally supply refrigerant from the cooling device to the compressor through the output valve. A supplementary refrigerant input line is coupled to the fuel tank and the input valve so that a remaining part of the refrigerant compressed and cooled by the compressor can be additionally supplied to the fuel tank through the input valve.

According to the present invention as described above, it is possible to simplify the cryogenic hydrogen tank from a dual structure to a single structure, and to provide a cooling system using a low-temperature refrigerant in a structure in which a single or multiple tanks are inserted in a cooling unit in parallel.

In addition, as a cryogenic hydrogen tank, a metal tank made of material such as STS (steel type stainless) that can withstand liquid hydrogen (-253 degrees) is used, and the heat conversion efficiency and temperature difference with the liquid hydrogen tank can be minimized. By using an ultra-low temperature refrigerant (-70 degrees), for example, an eco-friendly refrigerant such as Vice Technic's R469A, metal fatigue of the liquid hydrogen tank can be minimized. In addition, since heat exchange energy efficiency can be maximized by circulating cryogenic refrigerant gas, cooling of many devices can be controlled with a small cooling system.

In addition, the energy efficiency of the cooling system can be maximized by adding a recycling device that stores cold air generated when liquid hydrogen is vaporized as a refrigerant through a dedicated pipe and supplies it to the cooling system.

Therefore, the cooling system of the present invention can collectively perform cooling control for the entire vehicle.

1 shows a schematic configuration of a fuel cell vehicle according to an embodiment of the present invention.
2 shows the configuration of a cooling system for a fuel cell vehicle according to an embodiment of the present invention.
3 shows the configuration of a cooling system for a fuel cell vehicle according to another embodiment of the present invention.
4 shows the configuration of a cooling system for a fuel cell vehicle according to another embodiment of the present invention.
5 shows the configuration of a cooling system for a fuel cell vehicle according to another embodiment of the present invention.

Since the present invention can have various changes and various forms, the implementation examples (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to a specific form disclosed, and should be understood to include all modifications, equivalents, or substitutes included in the spirit and scope of the present invention.

Terms used in this specification are only used to describe a specific embodiment (aspect, aspect, aspect) (or embodiment), and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as ~comprising~ or ~consisting of are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, they should not be interpreted in an ideal or excessively formal meaning. don't

Terms such as first and second may be used to describe various components, but the components are not limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present invention.

Terms such as top, bottom, top, bottom, or top, bottom are used to distinguish the relative positions of components. For example, in the case of naming the upper part in the drawing as the upper part and the lower part in the drawing as the lower part for convenience, in practice, the upper part may be named as the lower part and the lower part may be named as the upper part without departing from the scope of the present invention. .

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, a cooling system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram schematically showing the configuration of a fuel cell vehicle (FCEV) according to an embodiment of the present invention.

Referring to FIG. 1, a fuel cell vehicle (FCEV) 100 according to an embodiment of the present invention is a vehicle driven by hydrogen as fuel, and a vehicle frame 110 constituting the frame of the vehicle and within the frame 110 A mounted fuel cell stack 120 , a fuel tank 130 and a cooling system 140 may be provided.

The fuel cell stack 120 generates direct current (DC) electricity through an electrochemical reaction between hydrogen supplied from the fuel tank 130 through the fuel supply line 160 and air (oxygen) supplied from the outside. It is a component that makes the vehicle drive.

The fuel cell for the fuel cell vehicle 100 is a device that converts chemical energy into electrical energy through an electrochemical reaction between a fuel and an oxidizer. Unlike general batteries that consume stored chemical energy as electrical energy, a fuel cell is a battery that does not have to worry about discharge because it continues to produce electricity through a continuous reaction under the condition that fuel is supplied.

A fuel cell may generally be a fuel cell using a polymer electrolyte membrane (Polymer, Electrolyte, Membrane, PEM). Such a PEM fuel cell is composed of an electrolyte membrane interposed between two electrodes, for example, a cathode and an anode, to generate electricity (power) through an electrochemical reaction between hydrogen supplied to the anode and air (oxygen) supplied to the cathode. It can be.

Since it is difficult to supply sufficient power to the fuel cell vehicle 100 with such individual fuel cells, the fuel cell stack 120 provides sufficient power by connecting a plurality of fuel cells, for example, hundreds of fuel cells in series. can be configured to supply

Although not shown in the drawings, an air compressor pump that compresses air introduced from the outside to a high pressure and supplies it to one electrode of the fuel cell of the fuel cell stack on the side of the fuel cell stack 120 in the frame 110, the fuel supply A hydrogen pump controlling the amount of fuel supplied from the fuel tank 130 to the other electrode of the fuel cell through the line 160, that is, the amount of hydrogen, and cooling water (water) through a cooling water supply line are supplied to the fuel cell stack. A cooling water pump for circulating in the fuel cell stack 120, a heat exchanger for cooling the cooling water heated by being circulated in the fuel cell stack 120, and the like may be further disposed.

The fuel tank 130 may include at least one hydrogen tank for supplying hydrogen as fuel to the fuel cell stack. The hydrogen tank used in the fuel cell vehicle 100 may be configured to be used to supply hydrogen to a polymer electrolyte fuel cell that generates electricity required for vehicle operation.

In the fuel cell vehicle 100, since the reaction occurring in the fuel cell stack 120 having a structure in which an electrolyte membrane is interposed between two electrodes supplied with air (oxygen) and hydrogen is an exothermic reaction, the fuel cell stack 120 ) needs to be properly cooled. The cooling system 140 is for cooling the fuel cell stack 120 and may include a cooling device 141 and a cooling line 145 .

The cooling device 141 is for cooling the cooling water flowing through the cooling line 145 and may include a heat exchanger. The cooling line 145 may be a flow path through which cooling water for cooling the fuel cell stack 120 flows. The cooling line 145 communicates with the heat exchanger 141 and the fuel cell stack 120 and is configured in a closed loop form so that the cooling water flows, so that the cooling water can be circulated. The cooling water may be a fluid substance such as water.

Although the cooling system 140 is shown as cooling the fuel cell stack 120 in FIG. 1 , all components requiring cooling in the fuel cell vehicle 100 including the fuel cell stack 120 are removed. It can be configured to provide cooling.

The fuel cell vehicle 100 according to an embodiment of the present invention may be configured such that the fuel tank 130 is included in the cooling system 140 . A structure in which the fuel tank 130 is inserted into the cooling system 140 will be described in detail with reference to FIGS. 2 to 5 hereinafter.

In addition, the fuel cell vehicle 100 may further include a power control unit (PCU) 150 for controlling the vehicle 100 . The power control unit 150 may convert DC power supplied from the fuel cell stack 120 through the power line 170 into AC power and provide the converted AC power to wheel motors (not shown). there is.

2 illustrates the configuration of a cooling system for a fuel cell vehicle according to an embodiment of the present invention.

Referring to FIG. 2, a cooling system 140a according to an embodiment includes a cooling device 141a and a fuel tank 130a, and the fuel tank 130a is included in the cooling device 141a. can be configured. The cooling device 141a may include a heat exchanger, and the heat exchanger may serve to cool an incoming refrigerant and cool vehicle components including the fuel cell stack 120 that require cooling with the cooled refrigerant. there is.

The refrigerant used in the cooling device 141a may include a material different from the fuel stored in the fuel tank 130a, for example, a material other than hydrogen. For example, the refrigerant used in the cooling device 141a may include helium (He). At this time, as the refrigerant, liquid nitrogen or dry ice may be used in combination. As another example, the refrigerant may include a fluid material such as cooling water.

The fuel tank 130a includes a hydrogen tank, and the hydrogen tank may store liquid hydrogen (H2) as a refrigerant. A fuel supply line 160a is coupled to the fuel tank 130a, and hydrogen stored in the fuel tank 130a may be supplied to the fuel cell stack 120 through the fuel supply line 160a. . At this time, a vaporizer 143a or the like is arranged in the fuel supply line 160a to vaporize and release liquid hydrogen discharged from the fuel tank 130a.

The cooling device 141a may be coated with a thermal insulator 148, for example, a polymer material such as carbon nanotubes (CNT). As another example, the cooling device 141a may be coated with a material including a shock absorbing material and an energy saving material in addition to a cooling material.

The cooling system 140a is a compressor for compressing and cooling a refrigerant input from the outside through a refrigerant input supply line 145ai, for example, helium, and supplying the refrigerant to the cooling device 141a through a refrigerant input line 142ai. (compressor, 147) and a dispenser (dispenser, 146a) for injecting the refrigerant supplied from the compressor 146a through the refrigerant input line 142ai to the cooling device 141a. Can be further included. The refrigerant input line 142ai and the refrigerant output line 142ao may serve as a refrigerant circulation line.

The heated refrigerant introduced from the outside, that is, the refrigerant heated while passing through the vehicle components, flows into the compressor 147a through the refrigerant input supply line 145ai and is compressed and cooled, and the compressed and cooled refrigerant is supplied to the dispenser. It may flow into the cooling device 141a in a gaseous state through 146a. The gaseous refrigerant discharged from the cooling device 141a may flow into the compressor 147a through the refrigerant output line 142ao. The refrigerant cooled and compressed by the compressor 147a may be discharged to vehicle components requiring cooling including the fuel cell stack 120 through a refrigerant output supply line 145ao. In some cases, a vaporizer (not shown) may be disposed instead of the dispenser 146a.

3 shows the configuration of a cooling system for a fuel cell vehicle according to another embodiment of the present invention.

Referring to FIG. 3, a cooling system 140b according to another embodiment includes a cooling device 141b and a fuel tank 130b like the cooling system 140a of FIG. It may be configured in a form including a fuel tank 130b, and the cooling device 141b may include a heat exchanger and may include a hydrogen tank for storing hydrogen as fuel in the fuel tank 130b. The cooling device 141b may be covered with a cooling material 148 .

However, unlike the cooling system 140a of FIG. 2 , in the cooling system 140b according to another embodiment, the refrigerant used in the cooling device 141b is made of the same material as the fuel stored in the fuel tank 120b. It can be. That is, hydrogen used as a fuel may be used instead of helium (He) as a refrigerant.

In the cooling system 140b according to another embodiment, since hydrogen is used as a refrigerant of the cooling device 141b, the fuel supply line 161b is configured to be coupled to the cooling device 141b, so that hydrogen as the fuel is used for cooling the cooling system 140b. The fuel may be supplied from the device 141b to the fuel cell stack 120 through the fuel supply line 161b. On the other hand, as in one embodiment, the fuel supply line 161b is coupled to the fuel tank 130b so that hydrogen, which is fuel, is supplied from the fuel tank 130b through the fuel supply line 161b to the fuel cell stack ( 120) can be released.

In addition, the cooling system 140b is a compressor for compressing and cooling hydrogen, which is a refrigerant input from the outside through a supply line 145bi for refrigerant input, and supplying it to the cooling device 141b through a refrigerant input line 142bi ( 147b) and a dispenser 146b providing fuel from the fuel tank 130b to the cooling device 141a through a refrigerant replenishment line 149b. At this time, the refrigerant input line 142bi, which is a refrigerant circulation line, is coupled to the compressor 147b and the fuel tank 130b, and the refrigerant output line 142bo is coupled to the compressor 147b and the cooling device 141b. can be configured.

In the cooling system 140b according to another embodiment, since hydrogen gas is used as a refrigerant of the cooling device 141b, when energy (refrigerant) used for cooling is insufficient, hydrogen used as a fuel may be used as a refrigerant. there is. That is, the dispenser 146b may be configured to supply hydrogen from the fuel tank 130b through the refrigerant replenishment line 149b and discharge hydrogen as a refrigerant to the cooling device 141b. Therefore, even if the refrigerant is insufficient, it is possible to compensate for the refrigerant shortage by using part of the fuel as a refrigerant for cooling.

In addition, the heated refrigerant may be introduced into the compressor 147b through the refrigerant input supply line 145bi, compressed and cooled, and then supplied to the fuel tank 130b through the refrigerant input line 142bi. In addition, the refrigerant discharged from the cooling device 141b is circulated to the compressor 147b through the refrigerant output line 142bo, cooled and compressed, and cooled, including the fuel cell stack 120, through the refrigerant output supply line 145bo. This can flow into the required vehicle components.

In the cooling system 140b according to another embodiment, the dispenser 146a of FIG. 2 is additionally installed in addition to the dispenser 146b to additionally spray the refrigerant from the compressor 147b to the cooling device 141b. there is.

4 shows the configuration of a cooling system for a fuel cell vehicle according to another embodiment of the present invention.

Referring to FIG. 4 , a cooling system 140c according to another embodiment may have the same structure as the cooling system 140b of FIG. 3 . However, the cooling system 140c according to another embodiment has a different arrangement structure of the compressor 147c and the dispenser 146c from the cooling system 140b of FIG. 3 .

That is, in the cooling system 140c according to another embodiment, instead of the dispenser 146c receiving fuel from the fuel tank 130c and supplying it as a refrigerant to the cooling device 141c, the dispenser 146c uses the compressor 147c ) to the cooling device 141c. At this time, the refrigerant input line 142ci may be coupled to the compressor 147c and the dispenser 146c, and the refrigerant output line 142co may be coupled to the fuel tank 130c and the compressor 147c. .

Therefore, in the cooling system 140c, the compressor 147c compresses and cools hydrogen, which is a refrigerant input from the outside through the refrigerant input supply line 145ci, and provides it to the dispenser 146c through the refrigerant input line 142ci And, the dispenser 146c may inject the refrigerant introduced through the refrigerant input line 142ci to the cooling device 141c.

In addition, hydrogen from the fuel tank 130c may be provided to the compressor 147c through the refrigerant output line 142co, compressed and cooled, and then discharged through the refrigerant output supply line 145co. Meanwhile, in the cooling system 140c, a portion of the refrigerant provided from the fuel tank 130c to the compressor 147c may be circulated to compensate for the lack of refrigerant.

In the cooling system 140c according to another embodiment, the dispenser 146b of FIG. 3 is additionally installed in addition to the dispenser 146c to additionally inject the refrigerant from the fuel tank 130b to the cooling device 141c. there is.

5 shows the configuration of a cooling system for a fuel cell vehicle according to another embodiment of the present invention.

Referring to FIG. 5 , a cooling system 140d according to another embodiment may have the same structure as the cooling system 140c of FIG. 4 . However, the cooling system 140d according to another embodiment has a structure in which input and output valves 144d1 and 144d2 and refrigerant replenishment input and output lines 149d1 and 149d2 are additionally arranged, unlike the cooling system 140c of FIG. is different

That is, in the cooling system 140d according to another embodiment, the refrigerant input line 142di is coupled to the compressor 147d and the dispenser 146d, and the input valve 144d1 is connected to the refrigerant input line 142di. and supplemental refrigerant input line 149d1. Further, the refrigerant output line 142d is coupled to the fuel tank 130d and the compressor 147d, and the output valve 144d2 is coupled to the refrigerant output line 142d and the supplemental refrigerant output line 149d2. can be configured. The input and output valves 144d1 and 144d2 may include 3-way valves.

Accordingly, in the cooling system 140c, the compressor 147d may compress and cool hydrogen, which is a refrigerant input from the outside through the refrigerant input supply line 145di, and discharge it through the refrigerant input line 142di. A portion of the refrigerant introduced into the refrigerant input line 142di is supplied to the dispenser 146d through the input valve 144d1, and the dispenser 146d transfers some of the refrigerant through the refrigerant input line 142di to the dispenser 146d. It can be sprayed to the cooling device 141d.

In addition, the remaining part of the refrigerant introduced into the refrigerant input line 142di may be supplied to the fuel tank 130d through the supplementary refrigerant input line 149d1 through the input valve 144d1. Accordingly, when the refrigerant for cooling is sufficiently supplied, a portion of the refrigerant may be provided to the fuel tank 130d to compensate for the lack of fuel.

Meanwhile, hydrogen from the fuel tank 130d is provided to the compressor 147d through the refrigerant output line 142do through the output valve 144d2, and hydrogen from the cooling device 141d is also supplied to the refrigerant output line ( 142do) may be provided to the compressor 147d. The compressor 147d compresses and cools the hydrogen introduced from the fuel tank 130d and the cooling device 141d through the output valve 144d2 and discharges the hydrogen through the refrigerant output supply line 145do.

In the cooling system 140d, when sufficient fuel is supplied from the fuel tank 130d, some of the fuel may be discharged as compressed refrigerant through the compressor 147d to compensate for the lack of refrigerant.

In the cooling system 140d according to another embodiment, the dispenser 146b of FIG. 3 is additionally installed in addition to the dispenser 146d to additionally spray the refrigerant from the fuel tank 130b to the cooling device 141d. there is.

In the cooling system according to the embodiment of the present invention, one fuel tank is inserted into one cooling device, but a plurality of fuel tanks may be inserted into the cooling device covered with the coolant. In addition, a plurality of cooling devices in which at least one or more fuel tanks are inserted may be arranged in parallel, and the cooling devices may be integrally covered with a coolant.

The cooling system 140a - 140d according to an embodiment of the present invention may further include a controller 200 for controlling the overall operation of the cooling system 140a - 140a - 140d.

As such, those skilled in the art to which the present invention pertains will be able to understand that the present invention may be embodied in other specific forms without changing its technical spirit or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. The scope of the present invention is indicated by the following claims rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. do.

100: fuel cell vehicle 110: frame
120: fuel cell stack 130, 130a-130d: fuel tank
140, 141a-141d: cooling device 200: controller
160, 160a-160d: fuel supply line 170: power line
146a-146d: dispenser 147a-147d: compressor

Claims (11)

In the cooling system of a fuel cell vehicle having a fuel cell,
a cooling device configured to introduce and cool the heated refrigerant, and discharge the cooled refrigerant;
an input refrigerant supply line for supplying refrigerant heated in the fuel cell vehicle to the cooling device;
a refrigerant supply line for supplying the cooled refrigerant to the fuel cell vehicle;
a fuel tank configured to store fuel to be supplied to the fuel cell; and
Including a fuel supply line for supplying fuel to the fuel cell,
The fuel tank is configured to be inserted inside the cooling device,
The fuel and the refrigerant are made of the same material,
The cooling system according to claim 1 , wherein the fuel is supplied to the fuel cell from at least one of the fuel tank and the cooling device.
According to claim 1,
At least one fuel tank is inserted inside the cooling device,
The cooling system according to claim 1, wherein a plurality of the cooling devices into which the fuel tank is inserted are arranged in parallel.
According to claim 2,
Further comprising a cooling material for preserving the temperature of the cooling device,
The cooling system according to claim 1 , wherein each cooling device in which the at least one fuel tank is inserted is covered with the cooling material, or the plurality of cooling devices arranged in parallel are integrally covered with the cooling material.
In the cooling system of a fuel cell vehicle (FCEV) having a fuel cell,
a cooling device configured to introduce and cool the heated refrigerant, and discharge the cooled refrigerant;
an input refrigerant supply line for supplying refrigerant heated in the fuel cell vehicle to the cooling device;
a refrigerant supply line for supplying the cooled refrigerant to the fuel cell vehicle;
a fuel tank configured to store fuel to be supplied to the fuel cell;
a compressor for compressing and cooling the heated refrigerant introduced from the input refrigerant supply line;
a dispenser for injecting the refrigerant compressed and cooled by the compressor to the cooling device; and
Including a fuel supply line for supplying fuel to the fuel cell,
The fuel tank is configured to be inserted inside the cooling device,
The fuel and the refrigerant are made of different materials,
A refrigerant output line is coupled to the cooling device and the compressor to supply cooled refrigerant from the cooling device to the compressor;
A refrigerant input line is coupled to the dispenser and the compressor, and the refrigerant compressed and cooled from the compressor is supplied to the dispenser.
According to claim 1,
a compressor for compressing and cooling the heated refrigerant introduced from the input refrigerant supply line; and
The cooling system further comprises a dispenser for injecting the refrigerant into the cooling device.
According to claim 5,
A refrigerant output line is coupled to the cooling device and the compressor to supply cooled refrigerant from the cooling device to the compressor;
and a refrigerant input line coupled to the compressor and the fuel tank to store the refrigerant as the fuel into the fuel tank.
According to claim 6,
A cooling system according to claim 1 , wherein a supplemental refrigerant line is coupled to the dispenser and the fuel tank so that fuel from the fuel tank is injected as the refrigerant to the cooling device.
According to claim 1,
a compressor for compressing and cooling the heated refrigerant introduced from the input refrigerant supply line; and
The cooling system further comprises a dispenser for injecting the refrigerant compressed and cooled by the compressor to the cooling device.
According to claim 8,
A refrigerant output line is coupled to the fuel tank and the compressor to supply the cooled refrigerant from the cooling device to the compressor;
A refrigerant input line coupled to the dispenser and the compressor to supply a portion of the refrigerant compressed and cooled from the compressor to the dispenser.
According to claim 9,
an output valve coupled to the refrigerant output line; and
The refrigeration system of claim 1 further comprising an input valve coupled to the refrigerant input line.
According to claim 10,
a supplemental refrigerant output line coupled to the output valve and the cooling device to additionally supply refrigerant from the cooling device to the compressor through the output valve;
A supplementary refrigerant input line is coupled to the fuel tank and the input valve to additionally supply the remaining part of the refrigerant compressed and cooled from the compressor to the fuel tank through the input valve.

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