JPH036831Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a power generator that can increase the packaging density of the entire machine body and can also sufficiently cool the reactor.

[Conventional technology]

A power generator consists of an engine, a generator connected to the output shaft of the engine, a muffler, a fuel tank, an air cleaner, a control box, etc., arranged and supported within a pipe-shaped frame. When a generator is used as a welding machine, a reactor is generally required to continue the welding arc.

[Problem that the invention attempts to solve]

However, since this reactor is relatively large and heavy, care must be taken in its layout. By the way, for example, a 170A generator that is attached to a 5KW output generator weighs 6Kg.

Also, this reactor generates a lot of heat during use,
Therefore, considering heat dissipation, this becomes a factor that makes it difficult to increase the packaging density of the entire aircraft due to the relationship with other parts.

In response to this, the present invention aims to provide a motor generator that has a high packaging density throughout the machine body and can sufficiently cool the reactor.

[Means for solving problems]

The configuration of the present invention for achieving the above object is that in a power generator in which a generator and an engine that drives the generator are coaxially arranged, the cylinder of the engine is placed on the side in a plane orthogonal to the axis. A pipe-shaped frame surrounds the outer periphery of the motor generator, and a reactor is disposed within this frame in a space below the inclined side of the cylinder of the engine. A cooling air outlet is formed on the engine side, an exhaust guide that guides cooling exhaust air from the outlet to the reactor, and an exhaust guide along the reactor on the opposite side of the reactor from which the cooling air outlet faces. The feature is that the air guide plate is provided with a wind guide plate that is arranged along the

〔Example〕

An embodiment of the present invention will be described below based on the drawings.

Figures 1 and 2 are main part configuration diagrams with some parts of the motor generator according to the present invention omitted. Figure 1 is a right side view, Figure 2 is a plan view, and Figures 3 to 6 are 3 is a front view, FIG. 4 is a left side view, FIG. 5 is a right side view, and FIG. 6 is a rear view of the motor generator according to the present invention.

In FIGS. 3 to 6, a tilted engine 2 with a cylinder tilted rearward and upward is attached to a pipe-shaped frame 1 formed by bending a steel pipe into a substantially rectangular parallelepiped shape at the lower left side when viewed from the front. A generator 3 whose rotating shaft is directly connected to an output shaft protruding from the right side of the engine 2 is attached to the lower right side when viewed from the front. A reactor 4 is attached within the pipe-shaped frame 1 in a space below the inclined side of the cylinder of the engine 2. (1st~
(See Figure 2). Further, an air cleaner 5 is attached to the rear left side of the engine 2, and a muffler 6 is attached to the right side of the reactor 4 behind the generator 3. An exhaust manifold 25 extends from the exhaust port of the cylinder of the engine 2 to the muffler 6, and the exhaust manifold 25 is disposed behind the generator 3 and above the reactor 4. Further, a control box 7 is attached to the front part of the upper part of the pipe-shaped frame 1, and a fuel tank 8 is attached to the rear part.

Then, as shown in Figures 1 and 2, the engine 2
A cooling fan 9 interlocking with the output shaft and a fan cover 10 covering the cooling fan 9 are provided at the end opposite to the generator 3, and a recoil starter 11 is further disposed on the side thereof. Recoil starter 11 cover 1
2 has an intake port 13 that sucks cooling air from the engine 2.
are formed. A shroud 24 that surrounds the cylinders, etc. of the engine 2 has an approximately inverted U cross section that wraps around the upper half of an exhaust manifold 25 to guide cooling exhaust air from the engine 2 to the muffler 6.
A letter-shaped exhaust guide 26 is provided, and the lower opening of this exhaust guide 26 is used to connect the reactor 4.
An exhaust port 27 for cooling exhaust air from the engine 2 is formed which opens toward the engine 2 .

On the other hand, the generator 3 is equipped with a cooling centrifugal fan 16 fixed to a rotating shaft at the end connected to the engine 2 and a fan cover 17 that covers the centrifugal fan 16, and an end opposite to the engine 2 side. A suction port 18 for sucking the cooling air from the generator 3 is formed in the inlet 18 .
A plurality of cooling air exhaust ports 19 are formed on the lower surface around the fan cover 17 on the side of the engine 2 of the generator 3, and furthermore, a plurality of cooling air exhaust ports 19 are formed to guide the cooling exhaust air blown from these exhaust ports 19 to the reactor 4. Duct 20
is formed to cover the outlet 19 of the fan cover 17, and the outlet of the duct 20 is provided facing rearward and laterally. And the exhaust duct 2
A protective net 14 (see FIG. 6) is attached to the exhaust port 0 to prevent foreign matter from entering the interior, and a wind direction plate 1 is installed to direct the exhaust direction toward the reactor 4.
5 is attached. Further, a baffle plate 21 is arranged at a rear position of the reactor 4. This baffle plate 21 consists of a vertical plate 22 provided along the rear surface of the reactor 4 and a horizontal plate 23 that extends from the upper end toward the reactor 4 and partially covers the upper part of the reactor 4. After cooling the reactor 4, the cooling exhaust air blown toward the reactor 4 hits the vertical plate 22, and then flows laterally along the vertical plate 22 so as to thoroughly cool the entire reactor 4. It's summery.

The flow of cooling air drawn into the engine 2 and generator 3 will be described below.

A cooling fan 9 provided in the engine 2 forces cooling air into the shroud 24 that surrounds the cylinders of the engine 2, and this cooling air is guided to the shroud 24 and surrounds the cylinders of the engine 2. After circulating, the air is blown onto the muffler 6 along the exhaust guide 26 formed to wrap around the upper half of the exhaust manifold 25 while cooling the exhaust manifold 25. In addition, branched cooling air is blown onto the reactor 4 from the exhaust port 27 that opens on the lower surface of the exhaust guide 26 .

On the other hand, a cooling fan 16 provided in the generator 3
The cooling air forcibly sucked in by the generator 3 flows through the generator 3 and is discharged from the exhaust port 19 formed at the end of the engine 2, and the cooling air is discharged from the exhaust port 19 of the generator 3. The air flows into the exhaust duct 20, is guided to the exhaust duct 20, and is blown out toward the reactor 4 from the outlet of the exhaust duct 20.
This blown cooling exhaust air passes through the reactor 4 to be cooled, collides with the vertical plate 22 of the baffle plate 21 from an oblique direction, is guided by the baffle plate 21, and flows laterally along the vertical plate 22. , the entire reactor 4 is thoroughly cooled. In this way, the reactor 4 is connected to the generator 3
The engine 2 is sufficiently cooled by the cooling exhaust air of the engine 2 and the cooling exhaust air of the engine 2. And reactor 4
Since it is arranged in the space below the inclined side of the cylinder of the engine 2, the space can be used effectively and the mounting density of the entire aircraft body can be increased. Furthermore, since the exhaust duct 20 is provided from the cooling air outlet 19 on the engine 2 side of the generator 3, the exhaust duct 20 can be easily formed.

In the above embodiment, the reactor 4 is replaced by the generator 3.
Although cooling is performed using the cooling exhaust air from both the generator 3 and the engine 2, it is of course possible to perform cooling using only the cooling exhaust air from the generator 3.

[Effect of idea]

As explained above, according to the present invention, the overall height of the aircraft can be lowered by using the engine cylinder inclined to the side, and the space below the inclined side of the engine cylinder is effectively utilized. Since the reactor is disposed in the section, it is possible to obtain a power generator with high packaging density throughout the fuselage.

In addition, by providing an exhaust guide that guides cooling exhaust air from the cooling air outlet provided on the engine side of the generator to the reactor, the cooling exhaust air from the generator can be effectively blown into the reactor through the exhaust guide. hand,
The reactor is efficiently cooled. Furthermore, in the case of the present invention, by providing a baffle plate arranged along the reactor on the rear side of the reactor, cooling can be carried out all the way to the rear side of the reactor, and cooling air can be directed to the rear of the reactor. Since the cooling air does not blow through, the cooling effect of the cooling air becomes even better.

[Brief explanation of the drawing]

Figures 1 and 2 are main part configuration diagrams of the motor generator according to the present invention, with some parts omitted. Figure 1 is a right side view, Figure 2 is a plan view, and Figures 3 to 6 are main parts. Fig. 3 is a front view, Fig. 4 is a left side view, Fig. 5 is a right side view, and Fig. 6 is a rear view of the motor generator according to the invention. 1 is a pipe-shaped frame, 2 is an engine, 3 is a generator, 4 is a reactor, 5 is an air cleaner, 6 is a muffler, 7 is a control box, 8 is a fuel tank, 9 and 16 are cooling fans, 10 and 17 are fans Cover, 11 is a recoil starter, 12 is a cover, 13, 18 is an intake port, 14 is a protective net, 15
1 is a wind direction plate, 19 and 27 are exhaust ports, 20 is an air exhaust duct, 21 is an air guide plate, 24 is a shroud, 25 is an exhaust manifold, and 26 is an air exhaust guide.

Claims (1)

[Scope of utility model registration request] In a motor generator in which a generator and an engine that drives the generator are coaxially arranged, the cylinder of the engine is arranged to be inclined laterally in a plane orthogonal to the axis, and the engine is arranged coaxially. The outer periphery is surrounded by a pipe-shaped frame, a reactor is disposed within the frame in a space below the inclined side of the cylinder of the engine, and an outlet for the cooling air of the generator is formed on the engine side. , an exhaust guide for guiding cooling exhaust air from the exhaust port to the reactor; and an air guide plate disposed along the reactor on a side opposite to the side facing the cooling air exhaust port of the reactor. A power generator featuring: