KR102339926B1 - Agricultural machine by hydrogen fuel cell operation - Google Patents

Abstract

The present invention relates to a riding management device using a hydrogen fuel cell as a power source, and to a riding management device driven by a hydrogen fuel cell, in which the hydrogen fuel cell, a hydrogen tank, a battery, an inverter, a motor, a reducer, a discharge water treatment device and the like are organically coupled such that the entire system can be stably operated. The riding management device driven by a hydrogen fuel cell comprises: a fuel cell (300) which generates power by making oxygen supplied from an air intake unit (100) react with hydrogen supplied from a hydrogen tank (200); an inverter (610) which converts DC power supplied from the fuel cell (300) and battery units (500) into AC power so that the AC power is connected to a power grid; and a motor (620) driven by the AC power supplied from the inverter, wherein an axle (531) is rotated with the driving force of the motor (620). In a hood (10) of the riding management device, the air intake unit (100), the hydrogen tank (200), the fuel cell (300), a discharge water treatment device (400), the inverter (610), and the motor (620) of a driving unit (600) are disposed. The air intake unit (100) is disposed at the front part inside the hood (10). The battery units (500) are disposed on left and right sides below a cabin (20) of the riding management device. The battery units (500) are disposed inside battery covers (510) so that the battery unit (500) can be protected.

Description

Agricultural machine by hydrogen fuel cell operation

The present invention relates to a small passenger management machine similar in use to a tractor, but smaller than a tractor and having a high ground clearance. Specifically, it relates to a passenger management system using a hydrogen fuel cell as a power source, and a hydrogen fuel cell, a hydrogen tank, a battery, an inverter, a motor, a reducer discharge water treatment device, etc. organically combined to enable stable system operation as a whole. It relates to a battery-powered passenger car manager.

As a prior art related to vehicles such as agricultural machinery using hydrogen fuel cells, Korean Patent Application Laid-Open No. 10-2011-0003940 (published on January 13, 2011) discloses a method for converting chemical energy of hydrogen into electric power through an electrochemical reaction. fuel cell; a fuel supply device for storing and supplying hydrogen fuel required for the fuel cell to generate electricity; a power control device that converts the direct current electricity generated by the fuel cell into the power required by the fuel cell excavator and controls it; A storage battery as a power storage device for storing a part of the power generated by the fuel cell to supply power required to operate all devices constituting the fuel cell excavator, and to respond to sudden load changes of various electric motors of the fuel cell excavator; an electric driving motor for driving the lower running body of the fuel cell excavator; an electric swing motor for turning the upper revolving body of the fuel cell excavator; a hydraulic pump driving electric motor for driving the hydraulic pump 270 for generating hydraulic pressure for operating the front working device of the excavator; And in the fuel cell excavator comprising a system controller that collectively controls all devices constituting the fuel cell excavator to operate in an optimal state, a fuel cell comprising a hydrogen storage alloy container as the fuel supply device It's about excavators.

In addition, Patent Publication No. 10-2010-0129878 (published on Dec. 10, 2010) discloses a fuel cell for converting chemical energy of hydrogen into electric power through an electrochemical reaction; a fuel supply device for storing and supplying hydrogen fuel required for the fuel cell to generate electricity; a power control device that converts direct current electricity generated by a fuel cell into electric power required for a fuel cell vehicle and controls it; a driving motor for driving a fuel cell vehicle; A supercapacitor as a power storage device for storing a part of the electric power generated by the fuel cell, supplying power necessary for all devices constituting the fuel cell vehicle to operate, and responding to a sudden load change of the driving motor of the fuel cell vehicle; And in the fuel cell vehicle comprising a system controller that collectively controls all devices constituting the fuel cell vehicle to operate in an optimal state, the fuel cell comprising a hydrogen storage alloy container as the fuel supply device. A technology related to an automobile is disclosed.

In addition, Patent Publication No. 10-2011-0005754 (published on Jan. 19, 2011) discloses a fuel cell for converting chemical energy of hydrogen into electric power through an electrochemical reaction; a fuel supply device for storing and supplying hydrogen fuel required for the fuel cell to generate electricity; a power control device that converts the direct current electricity generated by the fuel cell into the power required by the fuel cell forklift and controls it; A supercapacitor as a power storage device for storing a portion of the power generated by the fuel cell to supply power required to operate all devices constituting the fuel cell forklift, and to respond to sudden load changes of various electric motors; an electric driving motor for driving a fuel cell forklift; a hydraulic pump driving electric motor for driving a hydraulic pump generating hydraulic pressure to operate a working device of a fuel cell forklift; and a hydrogen storage alloy container as the fuel supply device in a fuel cell forklift including a system controller that collectively controls all devices constituting the fuel cell forklift to operate in an optimal state. A technology related to a forklift is disclosed.

In addition, in Patent Publication No. 10-2016-0063809 (published on Jun. 07, 2016), the upper bracket of the basket for accommodating the battery is fixed between the engine frame front protrusion and the weight support mounted on the engine frame front protrusion. There is disclosed a technology related to a hybrid tractor, characterized in that the rear of the basket is located at the bottom of the engine frame, and a battery is mounted in the basket.

Patent Document 1: Unexamined Patent Publication No. 10-2011-0003940 (published on Jan. 13, 2011) Patent Document 2: Unexamined Patent Publication No. 10-2010-0129878 (published on Dec. 10, 2010) Patent Document 3: Unexamined Patent Publication No. 10-2011-0005754 (published on Jan. 19, 2011) Patent Document 4: Unexamined Patent Publication No. 10-2016-0063809 (published on Jun. 07, 2016)

An object of the present invention is to generate electric energy by chemical reaction between hydrogen ions supplied from a hydrogen tank and oxygen in the air, and to generate power necessary for driving and working by using a motor.

In addition, an object of the present invention is to use a hydrogen fuel cell as a power source while maintaining the appearance of the existing passenger management device.

In addition, an object of the present invention is to secure stability and convenience when charging hydrogen in a hydrogen tank.

In addition, an object of the present invention is to improve the convenience of charging and maintenance by installing a hydrogen tank and an air intake inside the hood cover.

Another object of the present invention is to form a drain hole in the outward direction of the passenger management machine so that the drain water discharged from the waste water treatment device does not affect other configurations.

Another object of the present invention is to limit the positions of the battery and the motor unit in order to ensure easy replacement of the battery and easy driving by the motor.

The present invention is to solve the above problems, [1] a fuel cell 300 for generating electric power by reacting oxygen supplied from the air intake unit 100 and hydrogen supplied from the hydrogen tank 200; The inverter 610 that converts the DC power supplied from the fuel cell 300 and the battery unit 500 into AC power in order to connect it to the power system and the AC power supplied from the inverter drive the motor 620, In the hydrogen fuel cell driving passenger manager for rotating the axle 531 with the driving force of the motor 620, inside the hood 10 of the riding manager, the air intake unit 100, the hydrogen tank 200, the fuel cell 300, an inverter 610 and a motor 620 of the exhaust water treatment device 400 and the driving unit 600 are disposed, and the air intake unit 100 is disposed on the inner front portion of the hood 10, and the The battery unit 500 is disposed on the lower left and right sides of the cabin 20 of the riding manager, and the battery unit 500 is disposed inside the battery cover 510 to protect the battery unit 500 . It relates to a hydrogen fuel cell driven passenger management device, characterized in that.

In addition, the present invention [2] in the above [1], on the front of the hood 10 of the riding manager, an air intake hole ( 110) is formed, the air is sucked from the air intake hole 110, and the hydrogen tank 200 is disposed on the rear upper side of the air intake unit 100, and the rear of the air intake unit 100 In the middle side, a fuel cell 300 is disposed below the hydrogen tank 200, and a discharge water treatment unit 400 is disposed below the fuel cell 300 at a rear lower side of the air intake unit 100, , It relates to a hydrogen fuel cell driving passenger management device, characterized in that the inverter 610 and the motor 620 of the driving unit 600 are disposed at the rear of the fuel cell 300 .

In addition, the present invention is [3] as described in [1] or [2], wherein the discharge water treatment unit 400 forms discharge water holes 410 on the left and right outside sides in the traveling direction of the passenger management machine, It relates to a hydrogen fuel cell driven passenger management device.

Further, according to the present invention [4], in the above [2], a reduction gear 630 is disposed at the rear of the motor 620 and below the cabin 20, and the speed reducer 630 is a rear axle 631 ), characterized in that it drives, relates to a hydrogen fuel cell driving passenger management device.

[5] In the present invention, the hydrogen fuel cell according to [4], wherein the motor 620 drives the speed reducer 630, the hydraulic pump 640, and the PTO shaft 651. It is related to the drive riding manager.

In addition, the present invention [6] in the above [5], wherein the hydraulic pump 640 drives a three-point hitch 641 connected to a working machine (not shown), characterized in that is about

In the present invention, hydrogen ions supplied from a hydrogen tank and oxygen in the air are chemically reacted to generate electrical energy, and power required for driving and operation can be generated using a motor.

In addition, the present invention can use a hydrogen fuel cell as a power source while maintaining the appearance of the existing passenger management machine.

In addition, the present invention can ensure stability and convenience when filling the hydrogen tank with hydrogen.

In addition, the present invention can improve the convenience of charging and maintenance by installing a hydrogen tank and an air intake inside the hood cover.

In addition, according to the present invention, it is possible to discharge the discharged water to the outside of the passenger management device so that the discharged water discharged from the discharged water treatment device does not affect other components.

In addition, according to the present invention, it is possible to secure the easiness of replacing the battery and the easiness of driving by the motor.

1 is a flowchart showing the concept of generating and transmitting a driving force in the present invention;
2 is a front perspective view of the present invention;
3 is a layout view of components showing a state in which the hood is removed in the present invention;
4 is a layout view of components showing a state in which the hood is mounted in the present invention;
5 is an overall perspective view of the present invention;
6 is a rear perspective view of the present invention;

The passenger management machine is a highly convenient agricultural machine that can utilize a variety of working machines, and cultivation that cannot be done with a tractor, such as control work in paddy fields, fertilizer spreading work, static rotary work, mid-thick weeding work, ridge making work, plastic covering work, soil work, etc. to do management work.

The conventional passenger management system has been commercialized by mounting a diesel engine and an HST continuously variable transmission, but the need for conversion and development to an eco-friendly system is emerging according to carbon dioxide regulations.

The present invention relates to a hydrogen fuel cell driven passenger manager, characterized by the arrangement of a drive system such as a hydrogen tank, a battery, a fuel cell, a motor, and a speed reducer, by changing from a conventional diesel engine type passenger management system to a hydrogen drive system will be.

In the description of the present invention, the same technical configuration as in the prior art will be described by giving the same name as it is.

A fuel cell 300 for generating electric power by reacting the hydrogen fuel cell driving passenger manager of the present invention, oxygen supplied from the air intake unit 100 and hydrogen supplied from the hydrogen tank 200, and the fuel cell 300 and an inverter 610 that converts DC power supplied from the battery unit 500 into AC power in order to connect to the power system, and drives the motor 620 with AC power supplied from the inverter, In the hydrogen fuel cell driving passenger management that rotates the axle 531 with driving force, inside the hood 10 of the riding manager, the air intake unit 100, the hydrogen tank 200, the fuel cell 300, and the discharge water The inverter 610 and the motor 620 of the processing device 400 and the driving unit 600 are disposed, and the air intake unit 100 is disposed on the inner front part of the hood 10, and the cabin ( 20), the battery part 500 is disposed on the lower left and right sides, and the battery part 500 is disposed inside the battery cover 510 to protect the battery part 500, in the following Each of the components will be described in detail with reference to the drawings.

[Air intake unit (100)]

The air intake unit 100 in the present invention functions to supply oxygen to the fuel cell 300 .

In addition, the air intake unit 100 in the present invention functions not only to supply oxygen to the fuel cell 300 , but also to cool the heat generated in the fuel cell 300 , which will be described below.

In order to facilitate oxygen supply and cooling as described above, as shown in FIGS. 2 to 5 , on the front side of the hood 20 in which the air intake unit 100 is disposed, the front and left sides of the riding manager, An air intake hole 110 is formed on the right side.

At this time, the shape of the air intake hole 110 is not limited as long as it can maintain the rigidity of the hood 10 .

[Hydrogen tank (200)]

The hydrogen tank 200 in the present invention functions to supply hydrogen to the fuel cell 300 .

The hydrogen tank 200, as shown in FIGS. 2 to 5, is disposed on the rear upper side of the air intake unit 100, and is disposed on the upper side of the fuel cell 300 to be described below,

Although only one hydrogen tank 200 may be disposed, since continuous hydrogen supply is desirable, two or more hydrogen tanks 200 may be disposed. It is preferable to arrange it on the upper side of 300 .

In addition, since the hydrogen tank 200 does not require separate cooling, it is preferable that the air intake hole 110 is not formed in the hydrogen tank 200 part.

[Fuel cell (300)]

The fuel cell 300 in the present invention generates electric power by reacting oxygen and hydrogen supplied from the air intake unit 100 and the hydrogen tank 200 .

As shown in FIGS. 2 to 5 , the fuel cell 300 is disposed at the rear middle side of the air intake unit 100 and below the hydrogen tank 200 .

In addition, it is disposed above the discharged water treatment unit 400 to be described below.

Since the fuel cell 300 generates heat by reacting the oxygen and hydrogen, it is preferable to be disposed at the rear of the air intake hole 110 in order to cool the heat.

That is, in the present invention, it is preferable to sequentially dispose the hydrogen tank 200 , the fuel cell 300 , and the discharged water treatment unit 400 to be described below from the upper side to the lower side inside the hood 10 .

[Discharge water treatment unit 400]

The discharged water treatment unit 400 in the present invention is to treat water generated while generating electricity by reacting oxygen and hydrogen in the fuel cell 300 .

Since the discharged water treatment unit 400 is to treat the water generated by the fuel cell 300 , it is preferable to arrange it below the fuel cell 300 .

In addition, water, which is treated water generated by the discharge water treatment unit 400 , is recycled in some hydrogen fuel cell driving platforms, but is discharged to the outside as it is in the hydrogen fuel cell driving passenger management device of the present invention.

Since the present invention is a device that consumes relatively little power as a small passenger car manager, it does not require a separate treated water recycling device.

The discharged water treatment unit 400 serves to store and discharge water that is treated water. In order to discharge the treated water, as shown in FIGS. 4 and 5 , a drain hole 410 is formed at the lower end of the drain water treatment unit 400 . The drain hole 410 may be maintained in an open state at all times, and it is closed when the passenger management device of the present invention is operated using an opening (not shown), and opened when not in use to treat the discharged water. have.

[Battery unit 500]

The battery unit 500 of the present invention is disposed on the rear side of the fuel cell 300 . The arrangement on the rear side of the fuel cell 300 as described above is to store power generated by the fuel cell 300 .

In addition, as shown in FIGS. 2 and 3 , the battery unit 500 is disposed on the lower left and right sides of the cabin 20 of the riding manager of the present invention, and disposed inside the battery cover 510 . it is preferable

The arrangement of the battery unit 500 inside the battery cover 510 as described above is to prevent accidents such as fire, which may occur due to damage to the battery unit 500 .

In addition, by disposing the battery unit 500 on the lower left and right sides of the cabin 20, it is possible to improve the convenience of replacing the battery.

In addition, in the present invention, by installing the battery unit 500 on the outside of the hood 10, air cooling can be performed naturally when the riding manager is operated.

[Driver (600)]

The driving unit 600 of the present invention, as shown in FIGS. 2 to 6 , an inverter 610 , a motor 620 , a reducer 630 , an axle 631 , a hydraulic pump 640 , and a PTO shaft 651 ) is made of

The inverter 610 is a power converter that converts the DC power generated in the fuel cell 300 and the DC power of the battery into AC power in order to link it to the power system.

The motor 620 receives power in a state converted into AC power by the inverter 610 and drives the reducer 630 , the hydraulic pump 640 , and the PTO shaft 651 to be described below. .

A reducer 630 is disposed at the rear of the motor 620 and below the cabin 20, and the rotational force reduced by the reducer 630 drives the rear axle 631 of the present invention. It will start the riding manager.

In addition, the hydraulic pump 640 transmits power to a three-point hitch 641 connected to a work machine (not shown).

In addition, the motor 620 drives the PTO shaft for transmitting power to the working machine (PTO).

10 : Hood
20 : Cabin
100: air intake
110: air intake hole
200: hydrogen tank
300: fuel cell
400: discharge water treatment unit
410: drain hole
500: battery unit
510: battery cover
600: drive unit
610: inverter
620: motor
630: reducer
631 : axle
640 hydraulic pump
641: 3-point hitch
651: PTO axis

Claims (6)

The fuel cell 300 generates electric power by reacting oxygen supplied from the air intake unit 100 with hydrogen supplied from the hydrogen tank 200 , and direct current supplied from the fuel cell 300 and the battery unit 500 . Hydrogen that drives the motor 620 with the AC power supplied from the inverter 610 and AC power supplied from the inverter 610, which converts power to AC power in order to link the power to the power system, and rotates the axle 531 with the driving force of the motor 620 In the fuel cell driven passenger management device,
In the hood 10 of the riding manager, the inverter 610 and the motor 620 of the air intake unit 100, the hydrogen tank 200, the fuel cell 300, the exhaust water treatment device 400 and the driving unit 600 ) is placed,
The air intake unit 100 is disposed on the inner front portion of the hood 10,
The battery unit 500 is disposed on the lower left and right sides of the cabin 20 of the riding manager, and the battery unit 500 is disposed inside the battery cover 510 to protect the battery unit 500 . to allow,
On the front of the hood 10 of the riding manager, an air intake hole 110 is formed in front of the air intake unit 100 disposed on the inner front portion of the hood 10 , and air is discharged from the air intake hole 110 . inhale,
The air intake hole 110 is formed on the front and left and right sides of the traveling direction of the riding manager, and is formed only on the middle side and the lower side of the air intake unit 100,
On the rear upper side of the air intake unit 100, the hydrogen tank 200 is disposed,
A fuel cell 300 is disposed below the hydrogen tank 200 on the rear middle side of the air intake unit 100,
A discharge water treatment unit 400 is disposed below the fuel cell 300 under the rear lower side of the air intake unit 100 ,
In the rear of the fuel cell 300, an inverter 610 and a motor 620 of the driving unit 600 are disposed,
The discharge water treatment unit 400, a hydrogen fuel cell driven passenger management machine, characterized in that the discharge water hole 410 is formed on the left and right outer side of the traveling direction of the passenger management machine.
delete delete According to claim 1,
A reduction gear 630 is disposed at the rear of the motor 620 and below the cabin 20, and the speed reducer 630 drives the rear axle 631, a hydrogen fuel cell driving passenger manager .
5. The method of claim 4,
The motor 620,
A hydrogen fuel cell driving passenger manager, characterized in that the reduction gear 630, the hydraulic pump 640 and the PTO shaft 651 are driven.
6. The method of claim 5,
The hydraulic pump 640 drives a three-point hitch 641 connected to a work machine (not shown), a hydrogen fuel cell driven passenger manager.

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