JP2000324776A - Engine generator with projector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light-weight generator with a projector at a low cost which dispenses with a stabilizer and the like and is satisfactory in external appearance. SOLUTION: An engine of a fly wheel magnet ignition type is used, and a magnet is accommodated in a fan cover in the end portion of a generator opposite to the crank shaft direction. The end portion of the crank shaft 26 is protruded and positioned in the fan cover. A flywheel 28 of the magnet is fixed in the rotating direction to the end portion of the crank shaft 26. In a power source part for a projector, permanent magnets 34 are arranged and fixed to the fly wheel 28 internal peripheral part of the magnets, in the peripheral direction, and stator coils 38 are fixed on the engine case side, adjacent to the permanent magnets 34. Electric power is supplied to a projector by moving the permanent magnets 34 relative to the stator coils 38.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an engine generator with a floodlight.

[0002]

2. Description of the Related Art There is an engine generator integrated with a generator using an engine as a prime mover, and is widely used as a power source in places where commercial frequency power is difficult to obtain. At an outdoor work site, if the work is performed in the evening or night, the illuminating lamp can be turned on using the engine generator as a power source.

It is conceivable that the engine generator and the light projector are integrated to facilitate installation and movement. Among the conventional examples of this type, those using a mercury lamp as a floodlight, as shown in FIG. 4, fix a mercury lamp stabilizer c on an external frame b of an engine generator a, and , The rod d was extended upward, and a device e of a mercury lamp was fixed to the tip of the rod d. And the engine generator a
A panel f having a switch, an outlet, and the like is attached to the front so that the panel f can be used as a normal generator.

[0004]

However, it can be said that the above-mentioned one is merely a general-purpose engine generator a with a light emitter fixed thereto. For this reason, it is difficult to obtain a sense of unity in appearance, and the appearance quality is inferior. In addition, the weight of the ballast c tends to be heavy (particularly, the size of the ballast increases when an attempt is made to increase the amount of light), and the weight becomes heavier as a whole. In addition, an engine generator requires a space for mounting a ballast or the like. Further, there are various problems such as that the ballast c is likely to hinder refueling.

[0005] As another conventional technique, a pillar is extended upward from an outdoor working device having a built-in generator, and a floodlight is attached to the tip of the pillar (Japanese Patent Laid-Open No. 9-129).
No. 006), or one that allows the mounting plate of the generator and the floodlight to be foldable via a hinge (Japanese Utility Model Laid-Open No. 6-231).
No. 02), however, there is no change in the point that the weight becomes heavy or the space needs to be secured, and the above-mentioned conventional problems cannot be solved.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a generator with a floodlight which has a good external appearance, does not require a ballast and the like, is low in cost and is light in weight. And

[0007]

The present invention has the following configuration to achieve the above object. The present invention relates to an engine generator having a floodlight, wherein the engine is a flywheel magneto ignition system, a permanent magnet is attached to the flywheel, and a stator coil is fixed to the engine case side adjacent to the permanent magnet. An electric generator with a light projector is characterized in that power is supplied to the light projector by relative movement of a permanent magnet with respect to a stator coil. Further, in the present invention, the permanent magnet and the stator coil are used for supplying power to the light projector, and a generator that generates electric power by the shaft output of the engine can be provided in parallel with the engine. Further, in the present invention, the light emitter turns on the mercury lamp, and the structure can be such that the stator coil can turn on the mercury lamp without requiring a stabilizer for the mercury lamp.

According to the present invention, there is provided a flywheel magneto-ignition engine, wherein a permanent magnet is attached to the flywheel, a stator coil is fixed to an engine case adjacent to the permanent magnet, and a permanent magnet is provided. The power is supplied to the projector by the relative movement of the projector with respect to the stator coil.Therefore, it is possible to eliminate the need for a ballast as compared to directly using the power for the projector by the generator. Less susceptible,
The light emission of the floodlight does not flicker and can be used up to the capacity of the generator. In addition, it can be used as a working generator during the day and can be used as a floodlight or a generator during the night, which is convenient. In addition, if the projector is to turn on the mercury lamp and the stator coil can turn on the mercury lamp without the need for a ballast for the mercury lamp, for example, if it is a multi-pole structure that can generate high-frequency power, a space for mounting the ballast is required. No need to consider.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 illustrates an embodiment.
FIG. 2 is an overall view of an engine fan cover internal structure, and FIG. 3 is a detailed view of a magneto with a floodlight.

As shown in FIG. 1, an engine generator has an engine 10 and a generator 12 arranged side by side and fixed in an outer frame 14 in which pipes and plate members are combined in a rectangular shape. The generator body 12 is fixed to the rotor shaft in the rotation direction.

A control panel 16 is provided on the front of the outer frame. The control panel 16 is provided with a panel section 16a for controlling the projector 20 and a panel section 16b for controlling the generator. A column 18 made of a pipe material extends upward and is fixed to the upper structure of the outer frame. A floodlight 20 made of a high-pressure mercury lamp is attached to the upper end of the column 18.

Here, the engine 10 is of a flywheel magneto type, and a magneto 22 is
It is accommodated in a fan cover 24 at the end opposite to the generator 12 in the direction of the crankshaft. As shown in FIG. 2, an end of a crankshaft 26 projects into the fan cover 24, and a flywheel 28 of the magneto 22 is fixed to the end of the crankshaft 26 in a rotational direction. A permanent magnet 34 and a stater 38 of the magneto 22 are provided. The flywheel 28 has a generally bowl shape opened toward the engine, and a fan blade 30 is integrally formed on the opposite side of the engine. A recoil starter 32 is provided on the side of the fan cover 24 opposite to the engine.

As shown in FIG. 3, a power supply unit for the projector is provided with a permanent magnet 34 attached to the inner peripheral portion of the flywheel 28 of the magneto, and an engine case 36 adjacent to the permanent magnet 34 in the inner peripheral direction. The stator coil 38 (the coil 38a and the core 38b) is fixed, and the relative movement of the permanent magnet 34 with respect to the stator coil 38 supplies power to the light projector (the lamp attached to the fixture). In addition,
As shown in FIG. 3, a plurality of the permanent magnets 34 are provided on the inner peripheral surface of the flywheel 28 in the circumferential direction (in the example of FIG.
) Arrayed and mounted. Further, as shown in FIG. 2, the engine case 36 having a substantially cylindrical shape surrounding the crankshaft 26 is bolted to the stator base 40,
The stator coil 38 is fixed to the stator base 40 by bolting. Further, as shown in FIG. 3A, when viewed from the direction of the crankshaft 26, there are a plurality of poles (18 poles in the illustrated example) of the stator coil 38, and the movement locus is near the permanent magnet 34.

The permanent magnet 34 and the stator coil 3
Reference numeral 8 denotes a power supply dedicated to the projector 20, and an engine 10
A generator 12 that generates electric power with the shaft output of is arranged in parallel with the engine 10. The floodlight 20 turns on a mercury lamp, and since the stator coil 38 has a plurality of poles and generates a voltage having a frequency several to tens of times the commercial frequency, a ballast for the mercury lamp is required. It is structured so that mercury lamps can be turned on without any problems.

According to the embodiment, it is possible to eliminate the need for a ballast as compared with the case where the power for the projector 20 is directly obtained by the generator 12, and the power supplied to the projector is less affected by the load of the generator. As flicker disappears,
Up to the capacity of the generator 12 can be used. Also, since the floodlight 20 turns on the mercury lamp, and the state coil 38 has a structure that can turn on the mercury lamp without the need for a ballast for the mercury lamp, for example, a multipolar structure that can generate high-frequency power, the ballast is mounted. There is no need to consider space. In addition, since the projector power supply and generator are separated, they can be used as generators for generating work power when daylight projectors are not required, and can be used as projectors or generators at nighttime. It is.

Although the preferred embodiment of the present invention has been described in the above embodiment, the present invention is not limited to this. The type of lamp of the floodlight can be applied to a metal halide lamp by using a lighting circuit.

[0017]

As described above, according to the present invention, it is possible to eliminate the need for a ballast as compared with the case where power is directly emitted from a generator to generate light, and the luminous intensity is affected by the load of the generator. It is difficult to use, and it can be used up to the capacity of the generator. Therefore, the appearance is good without the need for stabilizers, etc.
Low cost and light weight.

[Brief description of the drawings]

FIG. 1 is an overall explanatory diagram of a generator with a floodlight according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of an internal structure of an engine fan cover.

FIGS. 3A and 3B are a detailed axial view and a longitudinal sectional view of the magneto.

FIG. 4 is an explanatory diagram of a conventional engine generator with a light projector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Engine 12 Generator 14 Outer frame 16 Control panel 16a, 16b Floodlight panel part, generator panel part 20 Floodlight 22 Magneto 24 Fan cover 26 Crankshaft 28 Flywheel 34 Permanent magnet 38 Stater coil

Claims (3)

[Claims] 1. An engine generator having a floodlight, wherein the engine is a flywheel magneto ignition system, a permanent magnet is attached to the flywheel, and a stator coil is provided on an engine case side adjacent to the permanent magnet. An engine generator with a floodlight, wherein the power is supplied to the floodlight by a fixed movement of the permanent magnet relative to the stator coil. 2. A permanent magnet and a stator coil for supplying electric power to a light projector, and a generator for generating electric power by an axial output of the engine is provided in parallel with the engine.
An engine generator with a floodlight according to the above. 3. The floodlight according to claim 1, wherein the floodlight is for lighting a mercury lamp, and the stator coil has a structure capable of lighting the mercury lamp without the need for a stabilizer for the mercury lamp. With engine generator.