JP6646898B2 - Passenger cart - Google Patents

Description

  The present invention relates to a riding cart, and more particularly to a riding cart used for moving luggage such as a golf bag or a person at a golf course.

  In golf courses, golf carts are often used to move luggage such as golf bags and people. In recent years, in consideration of environmental problems due to noise and exhaust gas, as described in Patent Literature 1, electric golf carts using a motor as a power source rather than an engine have become widespread.

JP 2000-51419 A

  However, the battery used as a power source for the electric golf cart is heavy and has a poor balance of the center of gravity of the vehicle because it is disposed at the rear part of the vehicle body, and there is a problem in running performance on a sloped place.

  In addition, the battery deteriorates as it continues to be used, and it becomes impossible to maintain an appropriate voltage. Therefore, it is difficult to accurately determine the remaining amount, and the battery has to be replaced, which causes problems in durability and economy.

  Further, the battery deteriorates quickly in a hot summer season, and is less likely to deteriorate in a cold winter season. However, satisfactory performance is hardly exhibited, and the mileage is shortened.

  Then, this invention was made in view of the said problem, and an object of this invention is to provide the riding cart excellent in running property, durability, economy, and convenience.

In order to achieve the above object, the present invention relates to a passenger cart provided with a driving unit in a vehicle body, wherein the driving unit supplies a motor for rotating a wheel, and supplies electric power to the motor, and a hydrogen tank and a fuel cell. A fuel cell unit comprising a fuel cell unit , wherein a portion of the vehicle body where the fuel cell unit is mounted is opened so that air can be taken in from below, and the fuel attached to the vehicle body the rear housing for accommodating the battery unit provided with a raindrop avoid cover, a gas outlet port directed obliquely downward toward the exterior from the interior of the rear housing is formed, characterized in Rukoto.

According to the present invention, since the fuel cell unit functions as a generator, the fuel cell unit can run as long as the fuel can be secured, and can be used even in the event of a power failure in a disaster. Further, the gas outlet provided with the raindrop avoiding cover can efficiently guide the gas to the outside from the rear housing while avoiding attachment of the raindrop to the fuel cell unit.

  In the above-mentioned riding cart, the hydrogen tank may be exchangeably provided, or may be fixedly provided.

  The fuel cell unit may include a pressure gauge for measuring the pressure in the hydrogen tank, and the pressure gauge may be used to determine the remaining amount of hydrogen gas in the hydrogen tank.

  Further, by providing a notifying means that operates with the output of the pressure gauge, the timing of replacing the fuel can be grasped, and efficient operation can be performed.

  In addition, by installing a replacement hydrogen tank, even if the hydrogen tank becomes empty, it is possible to travel in a short time by replacing the hydrogen tank.

  Furthermore, a battery for storing electric power generated by a regenerative brake mounted on the fuel cell unit and / or the rotating shaft of the rear wheel is provided, and power can be supplied from the battery, so that it can be used in a disaster or the like. .

  As described above, according to the present invention, it is possible to provide a passenger cart excellent in running performance, durability, economy, and convenience.

1 is a schematic side view showing a first embodiment of a riding cart according to the present invention. FIG. 2 is a schematic sectional view showing a gas outlet provided in a rear housing (vehicle housing) of the riding cart shown in FIG. 1. It is a block diagram which shows the driving control system of the riding cart shown in FIG. It is a block diagram showing an operation control system of a second embodiment of the riding cart according to the present invention.

  Next, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a first embodiment of a riding cart according to the present invention. The riding cart 1 includes a vehicle body 4 to which a front seat 2 and a rear seat 3 are attached. Various parts and members are mounted.

  The vehicle body 4 is provided with a front roof support 6 and a rear roof support 7, and the roof 8 is supported on these supports 6, 7. A transparent windshield (not shown) is attached to the front roof support 6.

  A loading platform 9 is provided at the rear of the vehicle body 4, and luggage such as a golf bag 10 is fixed to the loading platform 9 with a belt or the like (not shown).

  A steering wheel 11 is provided at a front portion of the vehicle body 4 to steer a front wheel 12. On the other hand, a rear wheel 13 is provided at a rear portion of the vehicle body 4, and is rotated by the driving means 14 shown in FIG.

  The drive means 14 for the rear wheel 13 includes a motor 20 disposed on the rotating shaft 13 a of the two rear wheels 13, and a fuel cell unit 15 disposed in a lower space of the rear seat 3 to supply electric power to the motor 20. And The motor 20 is provided with a regenerative braking function for generating electric power by the rotation of the rotating shaft 13 a, and the electric power generated by the regenerative braking is stored in the battery 29.

  The fuel cell unit 15 includes a hydrogen tank 16, a fuel cell 17, a pressure gauge 18 for measuring the pressure in the hydrogen tank 16, and a battery 29. The hydrogen tank 16 is of a cassette type, and is exchangeably disposed by a cylinder mounting portion 19. The fuel cell 17 uses the hydrogen stored in the hydrogen tank 16 as fuel, generates electric power with oxygen taken in from the atmosphere, and rotates the motor 20.

  The battery 29 is electrically connected to the motor 20 having the regenerative braking function and the fuel cell 17, and is configured to be rechargeable therefrom. The electric power stored in the battery 29 can be supplied to the outside through the connection portion 29a, and can be used as a power supply vehicle in a disaster or the like.

  The control unit 21 that controls the driving unit 14 and the like is electrically connected to the notification unit 22, the accelerator 23, the brake 24, and the brake driving unit 25, and the motor 20, the brake driving unit 25, and the like are input from the accelerator 23 and the brake 24. If the pressure inside the hydrogen tank 16 measured by the pressure gauge 18 is lower than a predetermined value, an alarm is issued from the notifying means 22.

In order to supply air to the fuel cell unit 15, the portion of the vehicle body 4 where the fuel cell unit 15 is mounted is opened so that air can be taken in from below. On the other hand, as shown in FIG. 1, a gas lead-out portion 28 is provided in a rear housing 27 that is connected to the rear seat 3 and houses the fuel cell unit 15, and a cross section of this portion of the rear housing 27 is shown in FIG. as shown in 2, the raindrop avoid cover 28b, the gas outlet port 28a to the inside from the outward directed obliquely downward side of the rear housing 27 is formed.

  As shown in FIG. 1, a spare hydrogen tank 31 is installed in a box-shaped accommodation section 30 below the roof 8 near the roof support 7.

  Next, the operation of the riding cart 1 having the above configuration will be described with reference to FIGS.

  To drive the passenger cart 1, a hydrogen tank 16 containing hydrogen therein is mounted on a cylinder mounting portion 19, and the hydrogen stored in the hydrogen tank 16 is used as fuel, and the fuel cell unit 15 of the vehicle body 4 is mounted. The outside air is taken in from the opening portion to be generated, and the electric power is generated by the oxygen and the hydrogen contained in the outside air, and the motor 20 is rotated. Further, the power generated by the fuel cell unit 15 can be stored in the battery 29.

  The rotation of the motor 20 causes the rear wheel 13 to rotate, the accelerator 23 controls the rotation speed of the motor 20, and the steering wheel 11 steers the front wheel 12 to control the direction of the riding cart 1. When necessary, the brake 24 is depressed, and the rotation of the front wheels 12 is stopped by the brake driving means 25 via the control unit 21 to stop the riding cart 1. The regenerative braking function of the motor 20 generates electric power from the rotating shaft 13 a of the rotating rear wheel 13, and stores the generated electric power in the battery 29.

The gas leaked from the fuel cell unit 15 is discharged from the gas outlet 28 to the outside. As described above, the cross section of the rear housing 27 there is a gas outlet 28, since the gas outlet port 28a toward an obliquely downward direction from inside to outside is formed, raindrops to the fuel cell unit 15 The gas can be smoothly guided to the outside while avoiding adhesion of the gas.

  The pressure in the hydrogen tank 16 is constantly measured by the pressure gauge 18, and when the pressure measured by the pressure gauge 18 is lower than a predetermined value, a warning is issued from the notifying means 22 to easily replace the hydrogen tank 16. Time can be grasped, and efficient operation can be performed.

  In addition, when an alarm is issued from the notifying means 22, by mounting the spare hydrogen tank 31 provided in the storage section 30 to the cylinder mounting section 19 of the fuel cell unit 15, the passenger cart 1 can travel in a short time. can do.

  According to the present invention, since the fuel cell unit 15 functions as a generator, the fuel cell unit 15 can run as long as fuel can be secured, and can be used even in the event of a power failure in a disaster.

  Next, a second embodiment of the riding cart according to the present invention will be described with reference to FIG.

  This riding cart 41 differs from the riding cart 1 in that a fixed hydrogen tank 32 is provided instead of the replaceable hydrogen tank 16 and the cylinder mounting portion 19 in the riding cart 1 shown in FIGS. Other configurations are the same. The filling of the hydrogen gas into the hydrogen tank 32 is performed through the filling port 32a.

  In this riding cart 41, since the hydrogen tank 32 is of a fixed type, when the measured value of the pressure gauge 18 for measuring the pressure in the hydrogen tank 32 reaches a predetermined value, an alarm is issued from the notifying means 22, and an external hydrogen supply is performed. The hydrogen gas is charged into the hydrogen tank 32 from a device or the like via the charging port 32a, and the passenger cart 41 is run. Other operations are the same as those of the riding cart 1.

  In the above-described embodiment, the riding carts 1 and 41 are described as the golf carts that move by loading the golf bags 10 and the like on the carrier 9 at the golf course, but they can be used for other purposes. Further, a passenger cart without the front seat 2 and the rear seat 3 can be provided.

REFERENCE SIGNS LIST 1 passenger cart 2 front seat 3 rear seat 4 vehicle body 6 front roof support 7 rear roof support 8 roof 9 carrier 10 golf bag 11 handle 12 front wheel 13 rear wheel 13a rotating shaft 14 driving means 15 fuel cell unit 16 hydrogen Tank (exchangeable)
17 Fuel cell 18 Pressure gauge 19 Cylinder mounting unit 20 Motor 21 Control unit 22 Notification unit 23 Accelerator 24 Brake 25 Brake driving unit 27 Rear housing 28 Gas outlet 28a Gas outlet 28b Raindrop avoiding cover 29 Battery 29a Connection unit 30 Housing unit 31 Spare hydrogen tank 32 Hydrogen tank (fixed)
32a Filling port 41 Passenger cart

Claims (7)

In a passenger cart having a driving means in a vehicle body,
The driving unit includes a motor that rotationally drives wheels, and supplies power to the motor, and a fuel cell unit including a hydrogen tank and a fuel cell ,
The portion of the vehicle body where the fuel cell unit is mounted is opened so that air can be taken in from below,
A rear housing which accommodates the fuel cell unit mounted on the vehicle body is provided with a raindrop avoid cover, a gas outlet port directed obliquely downward toward the exterior from the interior of the rear housing is formed with said Rukoto Passenger cart.   The riding cart according to claim 1, wherein the hydrogen tank is disposed so as to be exchangeable.   The riding cart according to claim 1, wherein the hydrogen tank is fixedly arranged.   The passenger cart according to claim 1, 2 or 3, wherein the fuel cell unit is provided with a pressure gauge for measuring a pressure in the hydrogen tank.   The passenger cart according to claim 4, further comprising a notification unit that is operated by an output of the pressure gauge.   The riding cart according to claim 2, 4 or 5, further comprising a replacement hydrogen tank. The battery according to any one of claims 1 to 6, further comprising a battery for storing electric power generated by a regenerative brake mounted on the fuel cell unit and / or a rotating shaft of a rear wheel, and capable of supplying power from the battery. Passenger cart.

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