JP2019116875A - Engine drive type generator - Google Patents

Abstract

To provide an engine drive type generator having an output terminal fitting structure enabling a connection of internal wiring against an output terminal or its inspection and the like to be easily carried out.SOLUTION: A frame 20 is vertically installed within a machine while being near one side wall 12a of bonnet 12 of an engine drive type generator 1. An output terminal panel 7 having an external wiring connection part 71a of an output terminal 71 protruded from a surface 7a and an internal wiring connection part 71b protruded from a rear surface 7b is set by hinge 23 to enable it to be moved between a normal position where the surface 7a is oppositely faced to one side wall 12a and a released position where it is rotated from the aforesaid normal position and there is provided a dustproof cover 73 for covering the rear surface 7b of the output terminal panel 7 placed at its normal position at an internal side of the aforesaid bonnet. The rear surface 7b of the output terminal panel 7 facing inside of the machine at its normal position is arranged to face upward through its turning toward its released position, the work can be more easily carried out than that of the external part of the machine in respect to the internal wiring connection part 71b protruded from the rear surface 7b.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an engine driven generator, and more particularly to an engine driven generator in which a generator body and an engine for driving the generator body are accommodated in a soundproof box, the engine driven generator being external to the engine driven generator. The present invention relates to an engine driven generator characterized by the structure of a mounting portion of an output terminal for connecting a wiring, for example, a power cord of an external connection device.

  A portable package-type engine-driven generator containing a generator body, an engine for driving this generator body, a fuel tank, and other necessary equipment in a soundproof box is a construction site, event site, disaster disaster It is widely used to obtain power in the earth and the like.

  The soundproof box of such an engine driven generator generally comprises a frame serving as a base on which the above-described engine, generator body and other necessary devices are mounted, and covers the frame to cover the engine and generator body. A soundproof box is formed by housing the above-mentioned engine, generator main body, fuel tank, and other necessary devices in a soundproof box constructed in this manner. In addition to protecting equipment housed inside from wind and rain, noise generated when driving the engine and generator main body is prevented from leaking out.

  In the soundproof box of the engine-driven generator configured as described above, the power cord of the external connection device, etc. should be provided in order to be able to supply the power generated by the generator body to the external connection device outside the soundproof box. An output terminal for connection is provided.

  In the attachment of the output terminal to such a soundproof box, as shown in FIG. 14 as an example, an opening 115 is provided in one of the side walls 112a of the bonnet 112 described above, and the one side wall 112a at the position where the opening 115 is formed. The terminal box 150 is mounted on the inner surface of the terminal box 150 so as to cover the opening 115 and the output terminal block 170 is mounted in the terminal box 150.

  The above-described output terminal block 170 mounted in the terminal box 150 has the required number of output terminals 171 attached to the substrate 172 in advance, and the wiring connection portion 171a provided with the output terminal block 170 at one end of the output terminals 171 is In the terminal box 150, the wiring connection portion 171b provided at the other end is mounted inside the terminal box 150 so that the wiring connection portion 171b is disposed protruding inside the machine through the mounting port 151 provided in the terminal box 150. The internal wiring 180b for supplying the electric power generated by the generator body 3 is connected to the wired connection part (internal wiring connection part) 171b, and the wiring connection part (external wiring connection part) 171a disposed in the terminal box 150 is opened. The external wiring 180 a such as a power supply cord of the external connection device is connected through 115.

  The above-mentioned opening 115 formed in one side wall 112a of the bonnet 112 is covered with the flap plate 114 from the outside of the aircraft, etc. to prevent the entry of dust, rain water, etc. into the terminal box 150.

  Thus, the connection of the external wiring 180a to the external wiring connection portion 171a of the output terminal 171 attached to one side wall 112a of the bonnet 112 pushes up the flap plate 114 covering the opening 115 to the state shown in FIG. It can be easily done from the outside of the machine by opening it, and it is possible to check dirt such as dirt on the external wiring connection 171a or slackening of the bolt or nut fixing the wiring to the external wiring connection 171a or dirt or slack by inspection. Maintenance work such as cleaning and retightening can be easily performed from the outside of the machine when there is a problem.

  However, since the internal wiring connection portion 171b of the output terminal 171 is located on the back side of the terminal box 150 when viewed from the outside of the machine, it can not be easily maintained or inspected, and maintenance or inspection work is performed. Requires a complicated operation such as removing a part of the side wall of the bonnet 112.

  On the other hand, in order to cool the engine and generator main body housed in the soundproof box, outside air is introduced as cooling air into the soundproof box by the rotation of a cooling fan provided on the engine and generator main body. Dust and the like outside the machine may enter the inside of the soundproof box together with the cooling air, and the dust and the like may also adhere to the internal wiring connection portion 171 b of the output terminal 171.

  Then, if dust etc. adheres to or deposits on the internal wiring connection portion 171b in this way, the insulation property of the internal wiring connection portion 171b of the output terminal 171 is lowered and there is a risk of short circuit or electrical leakage. Periodic inspection work is also required for the connection portion 171b.

  Therefore, in order to reduce the adhesion of dust and the like to the internal wiring connection portion 171b of the output terminal 171 in order to reduce the labor of such maintenance and inspection operations, as shown in FIG. It has also been proposed to attach a dustproof cover 173 covering the projecting portion from the inside of the bonnet to the terminal box 150 (see [0003] column of Patent Document 1 and FIG. 4).

  It has also been proposed that by forming such a dustproof cover 173 of a transparent material, the internal wiring connection portion 171b can be checked even with the dustproof cover 173 attached (claim of Patent Document 1) Item 1, see Figures 2 and 3).

Utility model registration No. 3096471 gazette

  As shown in FIG. 15, in the configuration in which the dustproof cover 173 covering the internal wiring connection portion 171b of the output terminal 171 is attached to the terminal box 150, it is difficult to adhere dust etc. to the internal wiring connection portion 171b of the output terminal 171 It can be considered that the frequency of maintenance and inspection work of the internal wiring connection portion 171b can be reduced.

  In particular, in the configuration in which such a dustproof cover 173 is formed of a transparent material, with the dustproof cover 173 attached, without removing it, visually confirm the attachment state of the wiring to the internal wiring connection portion 171b, the adhesion state of dirt, etc. This also improves the workability at the time of inspection.

  However, as in the case where the output terminal block 170 is provided on the side wall of the bonnet close to the generator body, when a large component such as the generator body is disposed inside the terminal box 150, Even if you try to visually check the back of the terminal box 150 through an inspection port or the like provided on the other side wall, it will be a shade of these large components, so even if the dustproof cover 173 is made of a transparent material It becomes difficult to visually

  In addition, even if visual inspection is possible, if adhesion of stains or loosening of bolts and nuts actually occur, work such as cleaning and retightening is required.

  In this case, when working through the inspection port or the like provided on the other side wall of the bonnet 112, the internal wiring connection portion 171b is at a deep position in the machine, and it is difficult for the operator's hands and tools to reach it. The workability with respect to the internal wiring connection portion 171b covered by the dustproof cover 173 is extremely bad.

  Therefore, one side wall 112a of the bonnet 112 to which the output terminal block 170 is attached is removed and cleaning of the internal wiring connection portion 171b and tightening of bolts and nuts are performed. Since the wire 180b is connected, one side wall 112a can not be separated from the bonnet by the length of the internal wire 180b, and the work is performed through a limited gap. Since it is necessary to perform operations such as cleaning and retightening of the internal wiring connection portion 171b after removing the connector, the workability is poor.

  In addition, the inferiority of the above-described workability with respect to the internal wiring connection portion 171b not only becomes a problem at the time of maintenance and inspection of the engine drive generator, but also the internal wiring 180b at the time of assembly work at the time of manufacturing the engine drive generator. The same problem occurs when performing the connection work.

  Therefore, the present invention was made to solve the above-mentioned drawbacks of the prior art, and not only has a structure in which dirt such as dust does not easily adhere to the internal wiring connection portion of the output terminal. An object of the present invention is to provide an engine driven generator provided with a mounting structure of output terminals capable of easily performing internal wiring connection work, maintenance and inspection work.

  Hereinafter, means for solving the problems will be described together with reference numerals used in the mode for carrying out the invention. This code is for clarifying the correspondence between the description of the claims and the description of the mode for carrying out the invention, and, needless to say, is used restrictively for the interpretation of the technical scope of the present invention. It is not something that can be done.

In order to achieve the above object, the engine driven generator 1 of the present invention is
In an engine driven generator 1 provided with a soundproof box 10 comprising a frame 11 on which an engine (not shown) and a generator main body 3 are mounted and a bonnet 12 covering the frame 11,
An output terminal 71 including an external wiring connection portion 71a connecting the external wiring 80a of the external connection device at one end, and an internal wiring connection portion 71b connecting the internal wiring 80b supplying the electric power generated by the generator body 3 at the other end. ,
An output terminal panel 7 to which the output terminal 71 is attached so that the external wiring connection portion 71a protrudes from the front surface 7a and the internal wiring connection portion 71b protrudes from the rear surface 7b,
A gantry 20 erected on the frame 11 is provided in the vicinity of one side wall (rear cover in the embodiment) 12a in the side wall of the bonnet 12;
The output terminal panel 7 is hinged to the rack 20, and the normal position in which the surface 7a is opposed to the side wall 12a and the open position rotated about the hinge 23 with respect to the normal position Make it possible to move between
While forming the opening 15 for external wiring introduction which enables introduction and connection of the external wiring 80a to the external wiring connecting portion 71a of the output terminal panel 7 in the normal position, the one side wall 12a is formed;
A dustproof cover (73 or 74) is provided to cover the back surface 7b of the output terminal panel 7 in the normal position at the inside of the bonnet 12;
A portion of the one side wall 12a facing at least the output terminal panel 7 in the normal position is detachably attachable to the bonnet 12 (claim 1).

  In the engine driven generator 1 having the above configuration, it is preferable to configure the output terminal panel 7 so that the back surface 7b faces upward at the open position.

  The dustproof cover 73 may be attached to the back surface 7b of the output terminal panel 7 (claim 3).

  Further, in the configuration in which the gantry 20 is provided with a plurality of leg portions 21, when the output terminal panel 7 is in the normal position, the internal wiring connection portion 71 b protrudes from the back surface 7 b of the output terminal panel 7. Preferably, the dustproof cover 74 is configured to be accommodated within the space between the legs 21 and 21 and to be attached to the legs 21 and 21 of the gantry 20 (claims) 4).

  In any of the above configurations, the dustproof covers 73 and 74 may be provided with an inspection window 77 covered by a transparent plate 76 (claim 5).

  The mount 20 to which the output terminal panel 7 is attached may be shared with the mount 20 for the control panel on which the control panel 6 for controlling the engine and the generator main body 3 is mounted at the upper part. The output terminal panel 7 is attached to the mount 20 at a position lower than the mounting position of the control board 6 (claim 6).

  According to the configuration of the present invention described above, the engine-driven generator 1 of the present invention can obtain the following remarkable effects.

  By providing a dustproof cover (73 or 74) which covers the back surface 7b of the output terminal panel 7 in the normal position at the inner side of the bonnet 12, dust etc. is generated for the internal wiring connection portion 71b to which the internal wiring 80b is connected. In addition to making it difficult to adhere to the output terminal panel 7 by moving the output terminal panel 7 between the normal position and the open position, the output terminal panel 7 in a state where all or part of one side wall 12 a is removed from the bonnet 12 By moving the 7 to the open position, the back surface 7b of the output terminal panel 7 that was facing the inside of the bonnet 12 can be directed to work from the outside of the machine, and wiring work, maintenance and inspection for the internal wiring connection portion 71b. I was able to do the work easily.

  Moreover, in the configuration of the present invention, since the output terminal panel 7 to which the internal wiring 80b is connected is not fixed to the side wall of the bonnet 12, one side wall (rear cover) 12a is not restricted by the length of the internal wiring 80b. The workability is also greatly improved in that it can be completely separated from the bonnet 12.

  The rotation of the output terminal panel 7 may be performed in any of the vertical direction and the horizontal direction, but the output terminal panel 7 may be turned upward in the open position described above. In the configuration in which 7 can be turned in the vertical direction, it is possible to easily perform the connection work, maintenance, and inspection work of the wiring to the internal wiring connection portion 71b.

  Although the dustproof cover 73 described above may be attached to the back surface 7b of the output terminal panel 7, the mount frame 20 is provided with a plurality of leg portions 21 and 21 and protrudes from the back surface 7b of the output terminal panel 7 in use. In the configuration in which the internal wiring connection portion 71b is accommodated in the space between the legs 21 and 21 and the dustproof cover 74 is attached to the legs 21 provided on the gantry 20, the output terminal panel It is also easy to cover a relatively wide range of the back surface 7b of 7, for example, the entire back surface 7b, with a dustproof cover.

  Moreover, in this configuration, when the output terminal panel 7 is moved to the open position, the dustproof cover 74 is also moved outside the interval between the legs 21 and 21 to which the dustproof cover 74 is attached also for the internal wiring connection part 71b. It is possible to expose the internal wiring connection portion 71b and carry out operations such as maintenance and inspection without carrying out desorption of the

  Furthermore, in the configuration in which the dustproof covers 73 and 74 are provided with the inspection window 77 covered with the transparent plate 76, for example, through the inspection window 77 of the dustproof cover 74 via the inspection port 17 provided on the other side wall of the hood 12. By inspecting the back surface 7b of the output terminal panel 7, checking the internal wiring connection 71b of the back surface 7b of the output terminal panel 7 while keeping the side wall 12a of one side attached and fixing the output terminal panel 7 in the normal position. Is possible.

  When the frame 20 to which the output terminal panel 7 is attached is used in common with the frame 20 on which the control panel 6 for controlling the engine and the generator main body 3 is mounted, it occurs below the mounting position of the control panel 6 The output terminal panel 7 can be attached by effectively utilizing the dead space, and in particular, in a configuration in which the gantry 20 includes a plurality of legs 21, the dead space is generated between the legs 21, 21. By accommodating the internal wiring connection portion 71b of the output terminal 71 and the dustproof covers 73 and 74, the downsizing of the entire engine drive type generator 1 is realized, and the connection work of the internal wiring 80b and the maintenance of the internal wiring connection portion 71b. -It was possible to provide an engine driven generator 1 that is easy to check.

The perspective view of the engine drive type generator of the present invention in the state where the rear cover is removed and the output terminal panel is in the normal position. The perspective view of the engine drive type generator of the present invention in the state where the rear cover is removed and the output terminal panel is in the open position. (A) of a mount with an output terminal panel (normal position) attached is a side view, (B) is a rear view. (A) of a mount with an output terminal panel (open position) attached is a side view, (B) is a rear view. V-V sectional view taken on the line of FIG. 3 (B). FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG. 3 (B), in which (A) shows the output terminal panel in the normal position and (B) shows the open position. The perspective view of another engine drive type generator of the present invention in the state where the rear cover is removed and the output terminal panel is in the normal position. The perspective view of another engine-driven generator of this invention of the state which removed the rear cover and made the output terminal panel an open position. The rear view of the mount frame which attached the output terminal panel (normal position). XX sectional drawing of FIG. The perspective view of another engine-driven generator of this invention of the state which removed the rear cover and made the output terminal panel an open position. The principal part sectional view of the mount frame provided with the output terminal panel (normal position) which shows the modification which provided the inspection window in the dustproof cover with respect to FIG. The perspective view of the state which looked at the back of the dustproof cover through the inspection port provided in the other side wall of the bonnet. Sectional drawing of the output terminal attachment part of an engine drive type generator (conventional). Sectional drawing of the output terminal attachment part of the engine drive type generator provided with the dustproof cover (conventional).

  Hereinafter, an engine driven generator 1 of the present invention will be described with reference to the attached drawings.

[Entire configuration of engine driven generator]
The engine driven generator 1 of the present invention is a soundproof box for components of the engine driven generator 1 such as an engine (not shown), a generator main body 3 driven by the engine, and a fuel tank (not shown). 10 is the same as the configuration of the known engine-driven generator described as the prior art in that it is a so-called package-type engine-driven generator housed in 10.

  Then, the above-described soundproof box 10 covers a frame 11 as a base on which components such as the above-mentioned engine, generator main body 3 and fuel tank are mounted, and covers the upper part of this frame 11. The same is true of the engine driven generator described in the prior art in that it is constituted by the bonnet 12 surrounding the component equipment such as the fuel tank.

  The aforementioned bonnet 12 constituting the soundproof box 10 of the engine-driven generator 1 is constituted by four side walls forming each side of the bonnet 12 and a top plate mounted on the upper portion of the side walls. In the present embodiment in which the soundproof box 10 is formed in a substantially rectangular shape in plan view, in the following description, one of the bonnet length directions (on the side where the description on the back side of the paper surface in FIG. The side wall of the bonnet will be described as a "front cover", the other side wall 12a (shown in Fig. 1 in a removed state) as a "rear cover", and the portion forming the top plate of the bonnet as a "top cover".

  The generator main body 3 and the engine described above are arranged side by side between the front cover and the rear cover 12a of the bonnet 12 in a state where the output shaft of the engine and the input shaft of the generator main body 3 are connected. Among them, the generator body 3 is disposed closer to the rear cover 12a, and the end cover 31 of the generator body 3 is made to face the rear cover 12a of the bonnet 12.

  Further, on the rear cover 12 a side of the bonnet 12, there are disposed an operation panel 5 of the engine driven generator 1 and a control panel 6 disposed inside the bonnet 10 with respect to the operation panel 5, An output terminal panel 7 is provided below the operation panel 5 and to which an output terminal 71 is attached.

[Mounting structure of control panel and output terminal panel]
In the engine driven generator 1 described as the prior art, the output terminal block 170 is attached to the terminal box 150 attached to one side wall 112 a of the bonnet 112, and the internal wiring 180 b is connected to the output terminal block 170. One side wall 12a and the internal wiring 180b are connected via the output terminal block 170 (FIGS. 14 and 15).

  On the other hand, in the engine drive type generator 1 of the present invention, the output terminal panel 7 is not fixed to the rear cover 12a which is one side wall of the bonnet 12, but the mount terminal 20 provided separately from the rear cover 12a. By attaching the rear cover 12a, the rear cover 12a can be removed from the frame 11 and the top cover without attaching and detaching the internal wiring 80b attached to the internal wiring connection portion 71b.

  In this embodiment, the output terminal 71 is provided on the side wall (rear cover) 12 a side of the side wall (rear cover) 12 facing the end cover 31 of the generator main body 3 among the side walls of the bonnet 12. The generator body 3 is straddled over the downwardly opening U-shaped rack 20 formed by the two legs 21 and 21 and a cross member 22 installed between the upper ends of the legs 21 and 21. The operation panel 5 disposed toward the rear cover 12a and the control panel 6 disposed inside the machine with respect to the operation panel 5 can be mounted on the cross member 22 of the gantry 20. At the same time, the output terminal panel 7 is attached to the rear cover 12 a at a position below the cross member 22 and near the upper end of the leg 21.

  The output terminal panel 7 has an output terminal so that an external wiring connection portion 71a provided on one end of the output terminal 71 on the front surface 7a and an internal wiring connection portion 71b provided on the other end of the output terminal 71 on the back surface 7b It is a rectangular panel to which 71 is attached.

  The output terminals 71 may be directly attached to the output terminal panel 7, but in the present embodiment, as shown in FIG. 5 as an example, an output terminal block 70 formed by attaching a necessary number of output terminals 71 to the substrate 72 in advance. The output terminal block 70 is attached to the output terminal panel 7 so that the output terminal 71 provided on the output terminal block 70 penetrates the front and back of the output terminal panel 7 through the attachment port 7c.

  Thus, the output terminal panel 7 is formed in which the external wiring connection portion 71a of the output terminal 71 protrudes from the front surface 7a and the internal wiring connection portion 71b protrudes from the rear surface 7b.

  A dustproof cover 73 is attached to the back surface 7b of the output terminal panel 7 so as to cover the internal wiring connection portion 71b of the output terminal 71, and adhesion of dust and the like to the internal wiring connection portion 71b is prevented.

  The dustproof cover 73 has a vertical portion 73a parallel to the output terminal panel 7 as shown in FIG. 5 and a horizontal portion 73b extending from the upper end of the vertical portion toward the back surface 7b of the output terminal panel 7 as shown in FIG. Between the back surface 7b of the output terminal panel 7 and the vertical portion 73a of the dustproof cover 73 through the internal wiring passage 78 formed between the lower end of the vertical portion 73a and the back surface 7b of the output terminal panel 7 One end of the internal wiring 80b inserted at an interval is connected to the internal wiring connection portion 71b.

  The other end of the internal wiring 80b is connected to a control panel 6 connected to the generator body 3, and the power generated by the generator body 3 can be supplied from the output terminal 71 to the outside through the control panel 6 Is configured as.

  The output terminal panel 7 is fixed to the mount 20 with a hinge 23 as shown in FIGS. 2 to 4 and 6, and is configured to be pivotable about the hinge 23.

  In the illustrated embodiment, the gantry 20 is provided with a passing plate 24 connecting the left and right legs 21 at an intermediate position in the height direction, and the passing plate 24 is provided with the output terminal panel 7 via the hinges 23 and 23. It is attached.

  By turning the output terminal panel 7, the output terminal panel 7 turns the front surface 7 a from which the external wiring connection portion 71 a protrudes to the rear cover 12 a side, and the internal wiring connection portion 71 b provided on the back surface 7 b and the dustproof cover 73 The normal position (see FIGS. 1 and 3) accommodated in the space between the 20 legs 21 and 21 and the open position with the back surface 7b from which the internal wiring connection portion 71b protrudes upward (FIGS. 2 and 4) Reference) is configured to be movable.

  In the illustrated embodiment, the bottom of the output terminal panel 7 is hinged to the transfer plate 24 of the gantry 20, and the upper side of the output terminal panel 7 is fixed by bolts 25 near the upper ends of the legs 21 and 21 of the gantry 20. 2 and 4 by removing the aforementioned bolt 25 which can be locked in the normal position shown in FIGS. 1 and 3 and which secures the upper side of the output terminal panel 7 to the mount 20. It is configured to be pivotable to the position.

  In the illustrated embodiment, the configuration is described in which the bottom of the output terminal panel 7 is hinged to the gantry 20 and the output terminal panel 7 is rotated in the vertical direction. The output terminal panel 7 may be configured to rotate in the horizontal direction by hinges 23.

  In the illustrated configuration, the position where the output terminal panel 7 is rotated about 90 degrees with respect to the normal position is the open position, but the position where the output terminal panel 7 is rotated 180 degrees from the normal position is the open position. The position is not limited to the example shown in the figure, as long as it is a pivoting position at which attachment / detachment of wiring to / from internal wiring connection portion 71b provided on the back surface 7b of output terminal panel 7 can be performed from outside It is good also as an open position.

  In the rear cover 12a, as shown in FIG. 1, a viewing window 13 is formed at a position opposite to the instruments provided on the operation panel 5 mounted on the cross mount 22 of the rack 20, and An opening 15 for introducing an external wiring is provided at a position facing the front surface 7 a of a certain output terminal panel 7.

  The viewing window 13 described above is closed by a plate made of a transparent material such as acrylic or glass, and prevents rainwater, dust and the like from entering the bonnet through the viewing window.

  Further, in the opening 15 for introducing the external wiring provided in the rear cover 12a, a flap plate 14 which covers the opening 15 so as to be able to be opened and closed from the machine outside is provided to similarly prevent intrusion of rain water and the like.

  By configuring the rear cover 12a in this manner, when the rear cover 12a is attached to the frame 11 and the top cover while the output terminal panel 7 is fixed at the normal position, the operation is performed through the observation window 13 formed in the rear cover 12a. It is possible to visually check the instruments provided on the panel 5, and connect the external wiring 80a to the external wiring connection portion 71a of the output terminal 71 provided on the output terminal panel 7 through the opening 15 for introducing the external wiring. It is configured to be able to do.

[Function, etc.]
The engine driven generator 1 of the present invention configured as described above is in the normal position shown in FIGS. 1 and 3 by bolting the upper side of the output terminal panel 7 to the upper end portion of the legs 21 and 21. The rear cover 12a is attached and used.

  In this state, the instruments provided on the operation panel 5 can be confirmed from the outside of the machine through the viewing window 13 provided on the rear cover 12a.

  Further, connection of the external wiring 80a to the external wiring connection portion 71a of the output terminal 71 provided on the output terminal panel 7 is performed by lifting the flap plate 14 provided on the rear cover 12a to open the opening 15 for introducing external wiring. The external wiring 80 a is inserted into the bonnet 12 via the wiring 15 and connected to the external wiring connection portion 71 a provided on the output terminal panel 7.

  When performing maintenance and inspection work on the internal wiring connection portion 71b provided in the output terminal panel 7 in such a use state, as shown in FIG. 1, the rear cover 12a is removed to expose the output terminal panel 7.

  As described above, since none of the operation panel 5, the control panel 6, and the output terminal panel 7 is attached to the rear cover 12a, when removing the rear cover 12a, the control panel 6 and the output terminal panel 7 are connected in advance The rear cover 12a can be easily removed without having to remove the wires and the like that are used.

  When the rear cover 12a is removed in this manner and the output terminal panel 7 is exposed, the bolt 25 fixing the upper side of the output terminal panel 7 to the mount 20 is removed. The base held by the transfer plate 24 of the gantry 20 is pivoted in the vertical direction about the axis and moved to the open position with its back surface 7b directed upward as shown in FIG. Work on the back surface 7b can be easily performed from the outside of the machine.

  In this state, the dustproof cover 73 attached to the back surface 7b of the output terminal panel 7 is removed, and the internal wiring connection portion 71b is exposed to adhere dust or the like to the internal wiring connection portion 71b or a bolt or nut for fixing the internal wiring 80b. In addition to checking for slack and the like, clean the internal wiring connection part 71b and retighten bolts and nuts according to the check result.

  In the present embodiment, the metal dustproof cover 73 is attached, but the dustproof cover 73 may be made of, for example, a transparent synthetic resin or the like, or a part of which is covered with a transparent plate It may have an inspection window, and the internal wiring connection portion 71 b may be inspected without removing the dustproof cover 73.

  Thus, after maintenance and inspection work of the internal wiring connection portion 71b, the dustproof cover 73 is attached to the output terminal panel 7, and it is again rotated to the normal position while the upper side of the output terminal panel After fixing and fixing the bolt 25 to the rear cover 12a, the maintenance and inspection work is completed.

[Modification]
In the configuration of the engine driven generator 1 described above with reference to FIGS. 1 to 5, the configuration in which the dustproof cover 73 described above is attached to the back surface 7 b of the output terminal panel 7 has been described.

  On the other hand, in the embodiment shown in FIGS. 7 to 10, the output terminal panel 7 is rotated to the normal position by attaching the dustproof cover 74 to the legs 21 of the mount 20 without attaching the dustproof cover 74 to the output terminal panel 7. At this time, the rear surface 7 b of the output terminal panel 7 can be covered by the dustproof cover 74 from the inside of the hood 12.

  In the configuration of the engine-driven generator 1 described with reference to FIGS. 1 to 4, the output terminal panel 7 is moved from the normal position (see FIG. 1) to the open position (see FIG. 2). Since the dustproof cover 73 is attached to the back surface 7b of 7, it is necessary to remove the dustproof cover 73 in order to expose the internal wiring connection portion 71b.

  On the other hand, in the configuration of the present embodiment, the dustproof cover 74 is attached to the legs 21 of the gantry 20 to move the output terminal panel 7 from the normal position (see FIG. 7) to the open position (see FIG. 8). The back surface 7b of the output terminal panel 7 can be exposed upward by moving upward while moving in a direction away from the dustproof cover 74 attached to the leg 21 of the gantry 20, Maintenance and inspection of the internal wiring connection portion 71 b can be performed without performing the mounting and demounting of the dustproof cover 74.

  In this embodiment, the dustproof cover 74 is formed by bending a metal plate, and as shown in FIG. 10, the dustproof cover 74 is formed into an L-shaped cross section having a vertical portion 74a and a horizontal portion 74b. The upper end of the vertical portion 74a of the portion 74 abuts on the cross member 22, and the tip end of the horizontal portion 74b is extended to the front end position of the leg 21 and then bent downward to form a bent portion 74c. The hinge 23 is attached to 74c.

  The horizontal portion 74b of the dustproof cover 74 is provided with a hole for inserting the internal wiring 80b as an internal wiring insertion passage 78, and one end of the internal wiring 80b inserted through the internal wiring insertion passage 78 is an internal The other end of the internal wiring 80b is connected to the control panel 6 connected to the generator main body 3 while being connected to the wiring connection portion 71b, and generated in the generator main body 3 via the control panel 6 Electric power can be supplied from the output terminal 71 to the outside.

  By thus attaching the hinge 23 to the bent portion 74c of the dustproof cover 74, the operation of separately mounting the dustproof cover 73 and the transfer plate 24 as in the embodiment described with reference to FIGS. 1 to 4 becomes unnecessary. .

  Also, by providing a dustproof cover 74 covering the space between the legs 21 of the gantry 20 in the width direction, as in the case of providing an auxiliary outlet 75 for single phase besides the output terminal block 70 on the output terminal panel 7, Even if it is necessary to cover the wider area of the back surface 7b of the output terminal panel 7, for example, the whole with the dustproof cover 74, it is possible to easily cope with it.

  Furthermore, in the embodiment described above with reference to FIGS. 7 to 10, an example in which the dustproof cover 74 described above is integrally formed of a metal plate or the like has been described. However, the embodiment shown in FIGS. In the vertical portion 74a of the dustproof cover 74, an inspection window 77 covered with a transparent plate 76 is provided at a position corresponding to the mounting position of the output terminal 71.

  Thus, by providing the inspection window 77 in the dustproof cover 74, the output terminal panel 7 is in the normal position, and even when the rear cover 12a is attached, as shown in FIG. By opening the inspection port 17 provided on the side wall, the internal wiring connection portion 71b of the output terminal 71 disposed on the back surface 7b of the output terminal panel 7 can be inspected via the inspection window 77 described above.

DESCRIPTION OF SYMBOLS 1 engine drive type generator 3 generator main body 31 end cover 5 operation panel 6 control panel 7 output terminal panel 7a front surface 7b back surface 7c attachment port 70 output terminal block 71 output terminal 71a (external) wiring connection part 71b (internal) wiring Connection 72 board (of output terminal block)
73, 74 Dustproof cover 73a, 74a Vertical part 73b, 74b Horizontal part 74c Folded part 75 Auxiliary outlet 76 Transparent plate 77 Inspection window 78 Internal wiring passage 10 Soundproof box 11 Frame 12 Bonnet 12a Rear cover 13 View window (for instruments)
14 Flap plate 15 Opening (for introducing external wiring)
Reference Signs List 17 inspection opening 20 base 21 leg 22 horizontal member 23 hinge 24 transfer plate 25 bolt 80a external wiring 80b internal wiring 112 bonnet 112a one side wall 114 flap plate 115 opening 150 terminal box 151 mounting port 170 output terminal block 171 output terminal 171a (External) Wiring connection part 171b (Internal) Wiring connection part 172 Substrate 173 Dustproof cover 180a External wiring 180b Internal wiring

Claims (6)

An engine-driven generator comprising: a frame mounted with an engine and a generator body; and a soundproof box consisting of a bonnet covering the frame,
An external wiring connection portion connecting an external wiring of the external connection device at one end, and an output terminal having an internal wiring connection portion connecting an internal wiring for supplying the electric power generated by the generator body at the other end;
An output terminal panel attached with the output terminal such that the external wiring connection portion protrudes from the front surface and the internal wiring connection portion protrudes from the rear surface;
Providing a stand erected on the frame in proximity to one of the side walls of the bonnet;
The output terminal panel is hinged to the mount so as to be movable between a normal position in which the surface faces the one side wall and an open position in which the hinge is pivoted with respect to the normal position.
An opening for introducing an external wiring is formed in the one side wall which enables the introduction and connection of the external wiring to the external wiring connection portion of the output terminal panel in the normal position,
Providing a dustproof cover that covers the back surface of the output terminal panel in the normal position on the inside of the bonnet;
An engine driven generator characterized in that at least a portion of the side wall facing the output terminal panel at the normal position is removable from the bonnet.   The engine driven generator according to claim 1, wherein the output terminal panel is configured such that the back surface faces upward at the open position.   The engine driven generator according to claim 1 or 2, wherein the dustproof cover is attached to the back surface of the output terminal panel.   When the frame includes a plurality of legs and the output terminal panel is in the normal position, an internal wiring connection portion protruding from the back surface of the output terminal panel is accommodated within the space between the legs. The engine driven generator according to claim 1 or 2, wherein the dustproof cover is attached to the leg portion of the mount frame.   The engine driven generator according to any one of claims 1 to 4, wherein the dustproof cover is provided with an inspection window covered with a transparent plate. The mount frame is a mount frame for a control panel on which a control panel is mounted at an upper portion, and the output terminal panel is attached to the mount frame at a position lower than the mounting position of the control panel. The engine-driven generator according to any one of the above.

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