KR102404014B1 - Hydrogen fuel cell tug car - Google Patents

Abstract

One embodiment of the present invention is a vehicle body; a cabin coupled to the front side of the vehicle body; a rear installation frame provided on the rear upper portion of the vehicle body; a front installation frame provided on an upper portion of the vehicle body and disposed adjacent to the rear installation frame; a plurality of hydrogen tanks fixedly installed in the tank fixing unit provided on the rear installation frame; a fuel cell power pack that is fixedly installed on the front installation frame and provides power for driving a vehicle; and a battery module unit provided under the front installation frame and provided with a high voltage battery providing power for driving a vehicle, wherein the high voltage battery is slid outwardly from the vehicle body, and the vehicle body It provides a hydrogen fuel cell airport towing vehicle that is configured to be exposed to the outside of the unit.

Description

Hydrogen fuel cell airport tow truck {HYDROGEN FUEL CELL TUG CAR}

The present invention relates to a hydrogen fuel cell airport towing vehicle, and more particularly, to a hydrogen fuel cell airport towing vehicle configured to facilitate repair and replacement of high voltage batteries.

A fuel cell that operates a hydrogen vehicle receives hydrogen from a hydrogen tank. Such a hydrogen tank is usually provided on the rear body of the vehicle, and hydrogen contained in the hydrogen tank through a hydrogen fuel supply pipe may be supplied to the fuel cell.

In addition, hydrogen supplied from the hydrogen tank and oxygen in the air supplied through the air supply cause an electrochemical reaction in the fuel cell to generate electrical energy. In this way, the electric energy generated in the fuel cell is used as power to drive the hydrogen vehicle.

Electrical energy generated through the fuel cell may be supplied to the junction box through, for example, a high voltage line. Here, the junction box is configured to electrically connect each component, and such a junction box is configured to electrically connect the fuel cell and the inverter. Accordingly, the electric energy generated in the fuel cell may be provided to the inverter through the junction box.

In addition, the inverter may be electrically connected to the power unit. Accordingly, the power unit, which is a motor, may drive the hydrogen vehicle through electric energy provided from the inverter.

However, there are many limitations in operation for hydrogen vehicles to be used in an environment where hydrogen charging stations for charging hydrogen in hydrogen tanks are not sufficiently secured. Accordingly, a method of adding a high-voltage battery to the interior of the hydrogen vehicle may be considered, but in this case, the configuration of the device becomes complicated, and when a high-voltage battery fixedly installed inside the vehicle fails, it is difficult to repair and replace it.

Therefore, even if a high-voltage battery is provided inside a hydrogen vehicle, various research and development for a hydrogen fuel cell airport towing vehicle in which the high-voltage battery can be repaired and replaced easily is required.

Prior Document 1: Korea Open Utility Model No. 20-1998-0010618 (May 15, 1998)

An object of the present invention for solving the above problems is to provide a hydrogen fuel cell airport towing vehicle made to simplify repair and replacement of high voltage batteries.

In order to achieve the above technical problem, an embodiment of the present invention is a vehicle body; a cabin coupled to the front side of the vehicle body; a rear installation frame provided on the rear upper portion of the vehicle body; a front installation frame provided on an upper portion of the vehicle body and disposed adjacent to the rear installation frame; a plurality of hydrogen tanks fixedly installed in the tank fixing unit provided on the rear installation frame; a fuel cell power pack fixed to the front installation frame and providing power for driving a vehicle; and a battery module unit provided under the front installation frame and provided with a high voltage battery providing power for driving a vehicle, wherein the high voltage battery is slid outwardly from the vehicle body, and the vehicle body It provides a hydrogen fuel cell airport towing vehicle that is configured to be exposed to the outside of the unit.

In one embodiment of the present invention, the battery module unit, a high voltage battery; a support frame supported and fixed to the vehicle body; and a seating frame in which the high voltage battery is seated and fixed and slides from the support frame, wherein when the seating frame is withdrawn from the support frame in an outward direction of the vehicle body, the high voltage battery may be exposed to the outside have.

In one embodiment of the present invention, a first space portion is formed between the rear installation frame and the vehicle body portion, the first junction box provided in the first space portion; a second junction box provided at an upper portion of one side of the front installation frame; and an inverter provided in a second space portion formed under the front installation frame, wherein the second junction box connects the fuel cell power pack and an end of a high voltage line connected to the first junction box, The first junction box may be configured to connect an end of a high voltage line connected to the second junction box, the high voltage battery, and the inverter.

In one embodiment of the present invention, the battery module unit may be provided to form a pair on both sides of the inverter.

In one embodiment of the present invention, the inverter further includes a power unit that receives power from the inverter and transmits driving force to the wheels of the towing vehicle, wherein the inverter is configured to receive power from at least one of the fuel cell power pack and the high voltage battery can

In one embodiment of the present invention, a detachable frame installed on the frame fixing bar provided in the front of the cabin; an opening/closing inspection door for selectively opening and closing the upper part of the detachable frame; a front towing unit provided in front of the vehicle body; And it may further include a rear towing unit provided at the rear of the vehicle body.

In one embodiment of the present invention, the lower part is supported on the upper surface of the vehicle body part, and the upper part is provided at the lower part of the rear installation frame, and a through hole through which the high voltage line is inserted is formed to protect the high voltage line from the outside. high voltage line protection case; a front protective cover portion covering the front installation frame to protect it from the outside; and a rear protective cover portion covering the rear installation frame to protect it from the outside, wherein a plurality of air movement holes may be formed in the front protective cover portion.

The effect of the hydrogen fuel cell airport towing vehicle according to the present invention described above will be described as follows.

According to the present invention, the high-voltage battery provided in the hydrogen fuel cell airport tow truck has a slide structure that can be drawn out of the vehicle body or drawn into the vehicle body, so that repair and replacement of the high-voltage battery can be performed conveniently.

It should be understood that the effects of the present invention are not limited to the above-described effects, and include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a perspective view of a hydrogen fuel cell airport towing vehicle according to an embodiment of the present invention.
2 is an exemplary view schematically showing a connection state of a high voltage line provided in a hydrogen fuel cell airport towing vehicle according to an embodiment of the present invention.
3 is a perspective view showing a front installation frame and a rear installation frame viewed from one side according to an embodiment of the present invention.
4 is a perspective view showing the front installation frame and the rear installation frame viewed from the other side according to an embodiment of the present invention.
5 is a perspective view of a hydrogen fuel cell airport towing vehicle as viewed from the rear according to an embodiment of the present invention.
6 is an exploded perspective view of a hydrogen fuel cell airport towing vehicle according to an embodiment of the present invention.
7 is an exemplary view showing a state in which a battery module unit is drawn out according to an embodiment of the present invention.
8 is an operation state diagram of a battery module unit according to an embodiment of the present invention.
9 is a perspective view of the cabin according to an embodiment of the present invention as viewed from the front.
10 is an exemplary view showing an open state of the opening/closing inspection door from the detachable frame according to an embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be embodied in several different forms, and thus is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is "connected" with another part, this includes not only the case where it is "directly connected" but also the case where it is "indirectly connected" with another member interposed therebetween. . In addition, when a part "includes" a certain component, this means that other components may be further provided without excluding other components unless otherwise stated.

In the present invention, the upper and lower parts mean positioned above or below the target member, and do not necessarily mean positioned at the upper or lower part with respect to the direction of gravity.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a hydrogen fuel cell airport towing vehicle according to an embodiment of the present invention, and FIG. 2 is an exemplary view schematically showing a connection state of a high voltage line provided in a hydrogen fuel cell airport towing vehicle according to an embodiment of the present invention 3 is a perspective view showing a front installation frame and a rear installation frame viewed from one side according to an embodiment of the present invention, and FIG. 4 is a front installation frame and a rear installation frame viewed from the other side according to an embodiment of the present invention 5 is a perspective view of a hydrogen fuel cell airport towing vehicle as viewed from the rear according to an embodiment of the present invention, and FIG. 6 is an exploded perspective view of a hydrogen fuel cell airport towing vehicle according to an embodiment of the present invention, FIG. is an exemplary diagram showing a state in which the battery module unit is withdrawn according to an embodiment of the present invention, FIG. 8 is an operation state diagram of the battery module unit according to an embodiment of the present invention, and FIG. It is a perspective view of the cabin viewed from the front, and FIG. 10 is an exemplary view showing a state in which the opening/closing inspection door is opened from the detachable frame according to an embodiment of the present invention.

1 to 10 , the hydrogen fuel cell airport towing vehicle 1000 includes a vehicle body 110 , a cabin 120 , a front installation frame 200 , a rear installation frame 300 , and a hydrogen tank 400 . , a first junction box 500 , a fuel cell power pack 600 , a second junction box 700 , an inverter 800 , and a battery module unit 900 .

The vehicle body 110 forms the skeleton of the hydrogen fuel cell airport towing vehicle 1000 .

A front traction unit 111 is provided at the front of the vehicle body unit 110, and a rear traction unit 112 is provided at the rear of the vehicle body unit 110, and the hydrogen fuel cell airport towing vehicle 1000 is towed forward. Through the unit 111 and the rear towing unit 112, it is possible to move the aircraft and luggage to a required position in the airport.

And the front side of the vehicle body part 110 is provided with a cabin 120, which is a driver's seat for an operator to drive the hydrogen fuel cell airport towing truck 1000. Such a cabin 120 may be formed integrally with the vehicle body 110 or may be formed as a separate type instead of integrally. Here, when the cabin 120 is a detachable type, the cabin 120 may be coupled to the vehicle body 110 when the hydrogen fuel cell airport towing vehicle 1000 is manufactured. As such, when the cabin 120 is formed of a separate type, the design of the hydrogen fuel cell airport towing vehicle 1000 may be formed in various forms.

On the other hand, the rear installation frame 300 is provided on the upper rear side of the vehicle body (110).

The rear installation frame 300 is provided with a tank fixing unit 320 , and the hydrogen tank 400 in which hydrogen is accommodated may be fixedly installed in the tank fixing unit 320 . Here, the rear protective cover part 310 covers the rear installation frame 300 as a whole, and is configured to protect various components provided in the rear installation frame 300 from the outside from the outside.

Here, the tank fixing unit 320 may be spaced apart from each other at predetermined intervals so that the plurality of hydrogen tanks 400 are stably fixed without shaking. The outer surface of the tank fixing part 320 may be made of an elastic material such as rubber. This is to minimize the transmission of the shock to the hydrogen tank 400 when an impact such as a rattle is generated while the hydrogen fuel cell airport towing vehicle 1000 is running.

The rear installation frame 300 is spaced apart from the vehicle body 110 such that the first space 101 is formed between the lower surface of the rear installation frame 300 and the upper surface of the vehicle body 110 .

And the first junction box 500 is provided in the first space 101 between the rear installation frame 300 and the vehicle body 110 . The first junction box 500 is a main junction box, and a second junction box 700 electrically connected to the fuel cell power pack 600 , a high voltage battery 910 , and a high voltage line L connected to the inverter 800 . is made to electrically connect the ends of the The first junction box 500 is configured to safely protect the end of the high voltage line L from the outside so that the end of the high voltage line L is not affected by external factors such as dust and moisture.

The first junction box 500 is disposed below the hydrogen tank 400 in a state in which the hydrogen tank 400 is installed in the tank fixing unit 320 to be safely protected from the outside. That is, it is preferable that the first junction box 500 to which the plurality of high voltage lines L are electrically connected is disposed where it is not easy to access from the outside.

The first junction box 500 is configured to transmit electric energy provided from, for example, the fuel cell power pack 600 and the battery module unit 900 to the inverter 800 .

Here, the high voltage line protection case 330 is provided in the first space 101 , the lower portion of the high voltage line protection case 330 is supported on the upper surface of the vehicle body 110 , and the upper portion is the rear installation frame 300 . is provided at the bottom of

A through hole 331 may be formed in the high voltage line protection case 330 , and the plurality of high voltage lines L may be connected to the first junction box 500 while passing through the through hole 331 .

The high voltage line protection case 330 is configured to protect the high voltage line L from the outside. Such a high voltage line protection case 330 is, for example, in the process of a worker maintaining the parts disposed on the upper side of the high voltage line protection case 330 using a maintenance tool such as a spanner, the maintenance tool is dropped It is made to prevent the high voltage line (L) from being impacted or damaged. That is, the high voltage line protection case 330 is configured to protect the high voltage line L from the outside.

Meanwhile, the front installation frame 200 is provided on the vehicle body 110 . The front installation frame 200 is disposed adjacent to the rear installation frame 300 . Here, the front protective cover part 210 covers the front installation frame 200 as a whole, and is configured to protect various components provided in the front installation frame 200 from the outside from the outside.

A cooler 220 may be installed in the front installation frame 200 . The cooler 220 is configured to maintain the inverter 800 and the power unit 810 installed in the front installation frame 200 in a predetermined temperature range. Here, a plurality of air movement holes (h) are formed in the front protective cover part 210 , and the air discharged from the cooler 220 may be discharged to the outside through the air movement holes (h).

And the low voltage DC converter 230 may be installed in the front installation frame 200 . The low-voltage DC converter 230 converts, for example, the high voltage of the high-voltage battery 910 into a 12V-class low voltage to provide power for operating electrical devices.

And the on-board charger 240 may be installed in the front installation frame 200 . The on-board charger 240 is configured to charge the high-voltage battery 910 by, for example, converting an AC voltage into a DC voltage.

In addition, the fuel cell power pack 600 may be fixedly installed on the front installation frame 200 .

The fuel cell power pack 600 is configured to generate electric energy through an electrochemical reaction between hydrogen supplied from the hydrogen tank 400 and oxygen in the air supplied through an air supply (not shown). Such a fuel cell power pack 600 is a generator that generates electric energy using hydrogen as a fuel.

Electrical energy provided from the fuel cell power pack 600 may be transferred to the first junction box 500 through the second junction box 700 .

Here, the second junction box 700 is provided on one side of the upper portion of the front installation frame 200 . The second junction box 700 is configured to electrically connect the high voltage line L connected to the fuel cell power pack 600 and the high voltage line L connected to the first junction box 500 . Accordingly, the electric energy generated from the fuel cell power pack 600 may be transferred to the first junction box 500 through the second junction box 700 .

The second junction box 700 is provided between the fuel cell power pack 600 and the first junction box 500 to electrically connect the fuel cell power pack 600 and the first junction box 500 . .

This second junction box 700 is an auxiliary junction box, and is provided for the convenience of work during repair and replacement of the fuel cell power pack 600 , which is the main power of the hydrogen fuel cell airport towing vehicle 1000 .

In the hydrogen fuel cell airport towing vehicle 1000 according to the present invention, when repair or replacement of the fuel cell power pack 600 is made, the operator operates the high voltage line (L) of the fuel cell power pack 600 coupled to the second junction box 700 . ), the repair or replacement of the fuel cell power pack 600 can be easily performed. In addition, even after the repair or replacement of the fuel cell power pack 600 is completed, only the high voltage line L connected to the fuel cell power pack 600 only needs to be coupled to the second junction box 700 , so the assembly operation can be easily performed.

As described above, since the hydrogen fuel cell airport towing vehicle 1000 is provided with the first junction box 500 as the main junction box and the second junction box 700 as the auxiliary junction box, the hydrogen fuel cell airport towing vehicle 1000 Repairs and replacements can be made easier.

On the other hand, the inverter 800 is configured to be electrically connected to the power unit 810 that transmits the driving force to the wheels provided in the hydrogen fuel cell airport towing vehicle 1000 . The inverter 800 converts the DC voltage provided from the fuel cell power pack 600 and the high voltage battery 910 into an AC voltage to operate the power unit 810 . Here, the power unit 810 may be a motor.

Such an inverter 800 may be provided in the second space portion 102 formed under the front installation frame 200 .

Here, the hydrogen fuel cell airport tow truck 1000 may be driven with an output of 50 kW provided from the fuel cell power pack 600, or driven with an output of 30 kW provided from the high voltage battery 910, for example. , the driving may be performed with an output of 80 kW provided together from the fuel cell power pack 600 and the high voltage battery 910 . Here, the output of 50 kW of the fuel cell power pack 600 and the output of 30 kW of the high voltage battery 910 are only examples, and the output ranges of the fuel cell power pack 600 and the high voltage battery 910 can be made in various ranges. Of course.

In this way, the hydrogen fuel cell airport towing vehicle 1000 may be driven by receiving electric energy from one or more of the fuel cell power pack 600 and the high voltage battery 910 .

Meanwhile, the battery module unit 900 is provided under the front installation frame 200 .

The battery module unit 900 is provided to form a pair on both sides of the inverter 800 .

Such a battery module unit 900 may include a high voltage battery 910 , a support frame 920 , and a seating frame 930 .

Here, the high voltage battery 910 is configured to be charged with electrical energy. The high-voltage battery 910 may be charged with electric energy through an external power source, or electric energy generated from the fuel cell power pack 600 may be charged, and the like. Electrical energy charged in the high voltage battery 910 may be charged through various methods.

Such a high voltage battery 910 may form a battery pack in which a plurality of batteries are provided together. The high voltage battery 910 is seated and fixed to the mounting frame 930 .

Here, the seating frame 930 is configured to be slidably movable from the support frame 920 supported and fixed to the vehicle body 110 . Such a seating frame 930 may, for example, be drawn out to the outside of the vehicle body 110 or may be drawn in from the outside of the vehicle body 110 toward the center of the vehicle body 110 .

When the seating frame 930 is withdrawn to the outside of the vehicle body 110 , the high voltage battery 910 seated on the seating frame 930 may be exposed to the outside. As such, the high voltage battery 910 can be easily exposed to the outside through the sliding movement of the seating frame 930. For example, when repair or replacement of the high voltage battery 910 is made, the operator can conveniently use the high voltage battery ( 910) can be repaired or replaced. And, after the repair or replacement of the high voltage battery 910 is completed, the operator inserts the seating frame 930 toward the center of the vehicle body 110 to safely protect the high voltage battery 910 from the outside.

As described above, since the battery module unit 900 is provided with a seating frame 930 configured to be slidably movable, repair and replacement of the high voltage battery 910 can be easily performed.

Meanwhile, the cabin 120 may include a detachable frame 121 and an opening/closing inspection door 122 . The detachable frame 121 may be installed and fixed to the frame fixing bars 123 provided on both sides of the cabin 120 . Such a detachable frame 121 is configured to protect various parts, such as a reservoir tank, a headlight, a turn indicator, a washer liquid container, and a brake booster, from the outside, which are disposed therein.

And the opening/closing inspection door 122 is provided on the upper part of the detachable frame 121 and is made to be detachable from the detachable frame 121 . The opening/closing inspection door 122 is configured to selectively open and close the upper part of the detachable frame 121 . Accordingly, when repair or replacement of the headlamp is required, for example, the operator can conveniently repair and replace the corresponding component while the opening/closing inspection door 122 is separated from the detachable frame 121 .

However, this is only a preferred embodiment of the present invention, and the scope of the present invention is not limited by the scope of the present invention.

The description of the present invention described above is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

101: first space part
102: second space part
110: vehicle body part
111: front traction unit
112: rear towing unit
120: cabin
121: detachable frame
122: open and close inspection door
123: frame fixing bar
200: front installation frame
210: front protective cover portion
220: cooler
230: low voltage direct current converter
240: onboard charger
300: rear installation frame
310: rear protective cover portion
320: tank fixing part
330: high voltage line protective case
331: through hole
400: hydrogen tank
500: first junction box
600: fuel cell power pack
700: second junction box
800: inverter
810: power unit
900: battery module unit
910: high voltage battery
920: support frame
930: seating frame
1000: hydrogen fuel cell airport tow truck

Claims (7)

vehicle body;
a cabin coupled to the front side of the vehicle body;
a rear installation frame provided on the rear upper portion of the vehicle body;
a front installation frame provided on an upper portion of the vehicle body and disposed adjacent to the rear installation frame;
a high voltage line protection case having a lower portion supported on an upper surface of the vehicle body portion and an upper portion provided under the rear installation frame, a through hole through which a high voltage line is inserted to protect the high voltage line from the outside;
a plurality of hydrogen tanks fixedly installed in the tank fixing unit provided on the rear installation frame;
a first junction box having a first space formed between the rear installation frame and the vehicle body, the first junction box being provided in the first space;
a second junction box provided on one side of the upper portion of the front installation frame;
a fuel cell power pack that is fixedly installed on the front installation frame and provides power for driving a vehicle; and
It is provided under the front installation frame and includes a battery module unit provided with a high voltage battery that provides power for driving a vehicle,
The high voltage battery slides outwardly from the vehicle body and is configured to be exposed to the outside of the vehicle body,
The second junction box is provided between the fuel cell power pack and the first junction box, and connects an end of a high voltage line connected to the fuel cell power pack and the first junction box to electrically connect the fuel cell power pack and the first junction box. A hydrogen fuel cell airport tow truck configured to be connected.
According to claim 1,
The battery module unit,
high voltage battery;
a support frame supported and fixed to the vehicle body; and
and a seating frame on which the high voltage battery is seated and fixed, and slidingly moved from the support frame,
When the seating frame is withdrawn from the support frame in the outward direction of the vehicle body, the high-voltage battery is exposed to the outside.
According to claim 1,
Including an inverter provided in the second space formed in the lower portion of the front installation frame,
The first junction box is a hydrogen fuel cell airport towing vehicle, characterized in that it is configured to connect the end of the high voltage line connected to the second junction box, the high voltage battery and the inverter.
4. The method of claim 3,
Hydrogen fuel cell airport towing vehicle, characterized in that the battery module unit is provided to form a pair on both sides of the inverter.
4. The method of claim 3,
It receives power from the inverter and further includes a power unit for transmitting driving force to the wheels of the towing vehicle,
The inverter is a hydrogen fuel cell airport towing vehicle, characterized in that configured to receive power from at least one of the fuel cell power pack and the high voltage battery.
According to claim 1,
a detachable frame installed on a frame fixing bar provided at the front of the cabin;
an opening/closing inspection door for selectively opening and closing the upper part of the detachable frame;
a front towing unit provided in front of the vehicle body; and
Hydrogen fuel cell airport towing vehicle, characterized in that it further comprises a rear towing unit provided at the rear of the vehicle body.
According to claim 1,
a front protective cover portion covering the front installation frame to protect it from the outside; and
It includes a rear protective cover that covers the rear installation frame to protect it from the outside,
Hydrogen fuel cell airport towing vehicle, characterized in that a plurality of air movement holes are formed in the front protective cover portion.

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