JPS63257402A - Portable type working and generating power-supply device - Google Patents

Abstract

PURPOSE:To use an engine in common for running and for a power source, by driving a driving motor with the output of a working and generating power- supply device mounted on the motor. CONSTITUTION:A working and generating set 1 is composed of a three-phase AC generator 12, a Diesel engine 11 for driving the generator, and a controller 13 for controlling the three-phase AC generator 12 and the Diesel engine 11. When a portable type working and generating power-supply device is set at a specified position and is actually worked, then various loads are connected to an external load terminal A and AC power is fed. In this case, by a driving controller 7, current fed to a three-phase AC motor 8 is interrupted. In the meantime, when the portable type working and generating power-supply device is moved, then the three-phase AC motor 8 is driving-controlled by the driving controller 7 after the external load of the various loads connected to the external load terminal A is removed from.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a portable power generator that can be used as a power source for construction sites or outdoor event venues, or as an emergency power source during power outages. This relates to a IIl power supply device and is intended to facilitate transportation and movement of the device.

[Conventional technology]

Traditionally, portable power generation power supplies usually consist of a motor such as a gasoline engine, diesel engine, or gas turbine engine, a generator driven by the motor, their control equipment, a fuel tank, etc., and are transported as one unit. and convenient transportation.

However, even a power supply device with a capacity of several kW weighs about one ton, and a large one typically weighs 5 to 10 tons. Therefore, it is necessary to prepare equipment for transportation and movement, such as trucks and cranes, not only when transporting the device to the site, but also when moving the installation position within the site. Even if it is a trailer type,
In order to move, it is necessary to prepare some kind of equipment such as an indexing vehicle.

[Problem that the invention seeks to solve]

In order to eliminate the need to separately prepare equipment for transportation and movement as described above, it is conceivable to provide a self-propelling mechanism to the portable starter It, T4 source device to make it self-propelled.

For that purpose, for example, when an aircraft is parked on the ground)
There are also mobile power supply vehicles that supply power from the ground. That is, it is a mobile power supply vehicle in which a power supply device is mounted on the loading platform of a freight vehicle, and FIG. 5 is a side view of such a conventional mobile power supply vehicle.

In FIG. 5, l is a power generator mounted on the loading platform of a freight vehicle, and this power supply vehicle transmits the driving force of the engine 2 to the differential gear 4 via the transmission 3 to drive the tires 5. This allows freight vehicles to run.

In such a conventional mobile power supply vehicle, a driving engine 2, a transmission 3, etc. are additionally installed, resulting in an increase in cost and weight.

There are problems such as increased maintenance work.

c. Means for Solving Problems] In view of the above problems, an object of the present invention is to provide a self-propelled power supply vehicle that is inexpensive, lightweight, and easy to maintain. That is, the portable power generation power supply device according to the present invention includes a trolley with a traveling mechanism on which the power generation power device is mounted and uses tires, a driving electric motor that drives the traveling mechanism, and a controller that controls the electric motor. The invention is characterized in that the motor is equipped with a device, and the electric motor is driven by the output of a power generation power supply device mounted on the motor.

[For production]

By making it an electric drive self-propelled type using the output of its own on-board power generator power supply, the engine can be used for both driving and power supply, so it can be used as a conventional engine-driven car without the addition of an engine, transmission, etc. It is advantageous in terms of weight and maintainability compared to the case where the
Improvements in operability can also be expected.

〔Example〕

Fig. 1 is a side view of one embodiment of the portable power generation power supply device according to the present invention, Fig. 2 is a front view of the rear tire drive section, and Fig. 3 is a main circuit connection diagram of the electrical system. , 5th
The same reference numerals as in the figure indicate parts having the same function.

The power generation bag et1 is mounted on a trolley 6 with a traveling mechanism that uses tires 5, etc., and the two left and right rear tires 5 are each driven by a three-phase AC motor 8, and are mounted on the trolley 6 with a traveling mechanism. The mounted drive control device 7 drives and controls the three-phase AC motor 8 using the output of the mounted power generation bag f1.

The power generator 1 is composed of a three-phase alternator 12, a diesel engine 11 that drives it, and a control device 13 that controls the three-phase alternator 12 and the diesel engine 11. The output is the control device 13
The signal is sent to the external load terminal A via the external load terminal A, and is also sent to the drive control device 7 of the three-phase AC motor 8.

When this portable power generation power supply device is installed in a predetermined position and is to be put into actual operation, various loads are connected to the external load end to supply AC power.
Cut off the power supply to the phase AC motor 8.

In addition, when moving this portable power generator and power supply device, after removing various external loads connected to the external load terminal A, the drive motor R7 uses the output of the power generator 1 to generate three-phase AC power. It drives and controls the electric motor 8 to run on its own.

Although the trolley with traveling mechanism 6 shown in FIG. 1 is provided with a driver's cab, it may be a simple one with a simple control panel and a steering wheel provided on the trolley.

In this embodiment, the left and right rear tires 5 are driven by individual three-phase AC motors 8, but as shown in FIG. The tires 5 may be driven by one three-phase AC motor 8 via the differential gear 4.

By using a variable voltage variable frequency inverter in the drive control device 7ζ and using a three-phase squirrel cage induction motor as the three-phase AC motor 8, a drive system that does not require constant maintenance can be realized.

In this embodiment, the three-phase AC motor 8 is used as the motor for driving the tires 5, but it goes without saying that the drive system may use a DC motor as the drive motor.

〔Effect of the invention〕

As explained in detail above, according to the present invention, by adding a simple device to the conventional portable power generation TM and source device, it is lightweight, low cost, and easy to maintain.

It is possible to provide a self-propelled portable power generation power supply device with improved controllability 16 and operability.

[Brief explanation of drawings]

FIG. 1 is a side view of an embodiment of the portable power generation power supply device according to the present invention, FIG. 2 is a front view of the rear tire drive section, and FIG. 3 is a main circuit connection diagram of the electrical system. FIG. 4 is a plan view of the rear tire drive portion of another embodiment, and FIG. 5 is a side view of a conventional mobile NjJ power supply vehicle. 1...Motor generator, 2...Engine, 3...Transmission, 4...
Differential gear, 5...Tire, 6...Dolly with traveling mechanism, 7...Drive control device, 8...
... 3-phase AC motor, 11... Diesel engine, 12... 3-phase AC generator, 13...
...control device 0

Claims (1)

[Claims] A cart with a traveling mechanism that is equipped with a power generation power supply device and uses tires, etc.; a driving electric motor that drives the traveling mechanism;
A portable power generation power supply device comprising a control device for controlling the electric motor, and capable of self-propelled by driving the motor by the output of the power generation power device mounted on the motor.