JPH0718976U - Mobile power car power cable connection structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an excellent mobile power supply vehicle that is easy to attach and detach the power cable, has high safety and reliability, has a simple structure, and is free from problems of corrosion and insulation deterioration. [Structure] FIG. 1 is a partially sectional front view showing an internal structure of a generator operation panel 2 of a mobile power supply vehicle 1, a power cable 10
Shows a state in which is connected. The generator operation panel 2 is provided with an engine instrument 3 and a generator circuit breaker 4 for controlling the operation and state of the generator, and an output terminal plate 5 is provided at a lower position below them. . Four power supply terminals 5a to 5d as three-phase output terminals are arranged in a line on the output terminal board 5, and these power supply terminals are attached to and detached from the power supply cable 10 by bolts. A cable connection port 9 is provided under the output terminal plate 5, a cover 11 is openably and closably attached to the bottom of the output terminal plate 5, and when the power cable 10 is not connected, the cover 11 is closed to prevent corrosion of the power terminals 5a to 5d. Prevents insulation deterioration of terminal number 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a power cable connection portion of a mobile power supply vehicle, particularly a mobile power supply vehicle equipped with a large-capacity generator.

[0002]

[Prior art]

 In a mobile power supply vehicle, an engine generator, a radiator for cooling, etc. are arranged on a base, a soundproof duct is constructed by a partition wall, and a soundproof engine generator surrounded by a soundproof box is mounted on a cargo bed such as a truck. It is a thing. This mobile power supply vehicle is used as a standby power supply in the event of a power outage or disaster, as a power source for broadcasting relay of TV and radio, and as a power source for various exhibitions. In particular, in recent years, the usage of the power source has expanded as a power source for various events such as concerts and outdoor events, and a low-noise mobile power source vehicle is desired.

Conventionally, a mobile power supply vehicle of this type has been disclosed in, for example, Japanese Utility Model Laid-Open No. 56-86862. As shown in the figure, in a mobile power supply car, the entire soundproof engine generator is surrounded by a soundproof box, a cable drum is installed at the rear of the cargo bed in a different room, and the cable drum is installed at the cable outlet at the rear of the vehicle. Power was supplied to various loads by pulling out the power cable wrapped around.

[0004]

[Problems to be solved by the device]

 However, in the case of a power supply vehicle that supplies a small amount of power, a cable drum or the like can be used as described in the above publication, but for example, a large-scale generator that outputs 30 kVA to 75 kVA of a three-phase four-wire system. If the cable is installed, the outer diameter of the cable will be about 50 mm to 70 mm, so the power cable cannot be wound on the cable drum. Therefore, in the case of a mobile power supply vehicle equipped with such a large generator, the power cable was connected to the output terminal of the generator when it was used without the cable drum.

In the case of an emergency, the mobile power supply vehicle needs to rush to the site as soon as possible to connect the power cable to the output terminal to supply electricity to the load, and also from the viewpoint of workability, the power cable and the output terminal. It is preferable that it can be easily attached to and detached from. However, if the output terminal is connected to the power supply cable while being exposed to the outside, the soundproof property deteriorates. Therefore, it is necessary to insert the power supply cable from the cable outlet and connect it to the output terminal as described in the above publication. It is preferable to arrange the output terminal at the rear part of the vehicle in consideration of detachability and handleability.

When the output terminal of the large-capacity power supply device is provided in the rear part of the vehicle, the higher the position of the output terminal, the more likely it is that the power supply cable will come off due to the weight of the power supply cable, causing a problem in safety and reliability. Occurs. In order to prevent the power cable from coming off, it is necessary to fix the power cable by some means to make it a structure that does not apply a load to the power terminals, and it takes time for installation work and the structure becomes complicated. There are drawbacks.

Further, in order to prevent the power cable from coming off due to its own weight, if the output terminal is disposed at a position as low as possible and the distance until the power cable reaches the ground is shortened, the weight of the power cable is divided by that amount. However, since the mobile power supply car moves like a normal car and is used in various environments, simply placing the output terminal at a low position will cause the output terminal material to be damaged by the mud or water that has entered through the cable connection port. There was a problem of corrosion and deterioration of insulation.

The present invention overcomes the above-mentioned drawbacks of the prior art, makes it easy to attach and detach the power cable, has high safety and reliability, has a simple structure, and is free from the problems of corrosion and insulation deterioration. It is an object of the present invention to provide a power cable connection structure for a mobile power vehicle.

[0009]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention has a power cable connection structure for a mobile power supply vehicle in which a power generator is mounted on a vehicle. A hopper-shaped cable connection port that doubles as a rear mudguard of the vehicle is placed below, and a cover that can be opened and closed is provided below the cable connection port.

[0010]

[Action]

 According to the present invention, the cover is closed to prevent the output terminals from being exposed to the outside and causing corrosion or insulation deterioration when the generator is not used, including when traveling, and when the generator is used, the cover is opened. The power cable inserted from the cable inlet is connected to the output terminal.

[0011]

【Example】

 Next, an embodiment of a power cable connection structure for a mobile power vehicle according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a perspective view showing an outline of a mobile power supply vehicle according to the present invention. The mobile power supply vehicle 1 has an engine generator, a radiator for cooling, etc. arranged on a base, a soundproof duct is constituted by a partition wall, and a soundproof engine generator surrounded by a soundproof box is a cargo bed for vehicles such as trucks. It is a mobile power supply vehicle installed in. The mobile power supply vehicle 1 in this embodiment is equipped with a large-scale generator capable of outputting 30 kV to 75 kV, for example, in a three-phase four-wire system.

As shown in FIG. 2, the operation panel 2 of this generator is arranged immediately behind the rear wheel on the left side surface, and the side surface of this part can be opened and closed by the door 15 so that the operation panel 2 can be operated. It has become. Since the door 15 is arranged on the left side in this way, even if the mobile power supply vehicle 1 is parked on the road, it can be operated on the sidewalk and the safety of the operator is high.

FIG. 1 is a front view, partially in section, showing the internal structure of the generator control panel 2 of the mobile power supply vehicle 1, showing a state in which the power cable 10 is connected. The generator operating panel 2 is provided with an engine instrument 3 for controlling the operation and state of the generator and a generator circuit breaker 4, and an output terminal plate 5 is provided at a lower position below them. . The output terminal plate 5 has four power supply terminals 5a to 5d arranged in a line as three-phase output terminals, and these power supply terminals are attached to and detached from the power supply cable 10 by bolts. A cable connection port 9 is provided below the output terminal plate 5, and a cover 11 is attached to the bottom of the cable connection port 9 so as to be openable and closable.

The cable connection port 9 uses the shape of the wheel feeder 8 so that the power cable 10 can be easily inserted and removed, and the upper portion is wider than the bottom portion. That is, the cable connection port 9 has a hopper shape that also serves as a mudguard behind the vehicle, and the mudguard 13 is attached to the fender 8. FIG. 3 is a cross-sectional view taken along one-dot chain line A-A 'in FIG. As can be seen from FIGS. 1 and 3, according to the present embodiment, the output terminal plate 5 is provided at a low position, and the distance between the output terminal plate 5 and the ground 30 is short, so that the cable 10 reaches the ground with a short length. The load applied to the power supply terminals 5a to 5d by its own weight is small. Therefore, even if vibration is transmitted to these terminals during operation of the generator, there is no concern that the bolt will loosen and the power cable 10 will come off.

When connecting the power cable 10 to the power terminals 5 a to 5 d, the cover 11 provided at the bottom is first opened, and the power cable 10 is inserted into the cable connection port 9 from this. At this time, the door 15 shown in FIG. 2 is opened, and each wire of the cable inserted from the cable connection port 9 is connected to a predetermined terminal of the power supply terminals 5a to 5d by a bolt. The door 15 is closed so that the sound does not leak outside while the generator is in operation.

FIG. 4 is an explanatory diagram showing a state in which the mobile power supply vehicle 1 is moving. For example, when moving in the rain or snow, the rotation of the wheels causes mud splashes as indicated by the arrow. The mud and water splashes caused by the transfer prevent the mudguard 13 from directly reaching the rear part of the wheel having the cover 11, but the mudguard 13 alone cannot completely prevent the mud splash and the like. This becomes more remarkable as the road surface condition during traveling is worse. Since the output terminal plate 5 is located at a low position, a cover 11 is provided to prevent mud and water from entering through the cable connection port 9 as shown in FIG. 4, and the output terminal plate 5 is attached to each of the power supply terminals 5a to 5d. It has a structure that prevents corrosion and insulation deterioration.

FIG. 5 shows a cross section taken along the chain line B-B ′ of FIG. 4, and a structural example of the cover 11 will be described using this. The cover 11 has a structure in which one end (right side in FIG. 5) is pivotally attached to the vehicle by a hinge 17 and the other end (left side in FIG. 5) can be engaged with a lock fitting 12 attached to the vehicle. When connecting the power cable 10 to the output terminal board 5 as shown in FIG. 1, the lock fitting 12 is removed, the cover 11 is opened in the direction of the arrow, and the cable 10 is inserted as shown in FIG.

In this way, in this embodiment, the output terminal board 5 is arranged at a low position, so that even a mobile power supply vehicle equipped with a large power supply will not be disengaged from the power supply terminals 5a to 5d of the terminal board 5 due to the weight of the power supply cable. It is possible to provide a safe and reliable mobile power supply vehicle without using a complicated structure. Further, since the cover 11 which is opened and closed by one touch is provided on the bottom of the terminal board 5, corrosion of the power terminals 5a to 5d and insulation deterioration of the terminal board 5 can be prevented, and connection and maintenance of the power cable 10 can be prevented. Will be easier.

In the present embodiment, the cover 11 has a one-sided opening structure with the hinge 17, but the present invention is not limited to this, and may have a sliding structure, for example.

[0021]

[Effect of device]

 As described above, according to the power cable connection structure of the mobile power supply vehicle of the present invention, the output terminal plate is arranged at a low position, so that even in a mobile power supply vehicle equipped with a large generator, the power cable does not come off from the power supply terminal due to its own weight. It can provide safe and reliable mobile power supply vehicle without complicated structure. Also, since the cover that can be opened and closed is provided on the bottom of the output terminal board, it is possible to prevent corrosion of the power supply terminals and deterioration of insulation of the output terminal board, and it is easy to connect and maintain the power cable.

[Brief description of drawings]

FIG. 1 is a structural view for explaining an embodiment of a cable connection structure of a mobile power supply vehicle according to the present invention.

FIG. 2 is a perspective view showing an embodiment of a mobile power supply vehicle according to the present invention.

FIG. 3 is a cross-sectional view taken along the alternate long and short dash line AA ′ in FIG.

FIG. 4 is an explanatory diagram showing a state when the cover is closed.

5 is an explanatory view illustrating the structure of the cover taken along the chain line BB ′ in FIG. 4;

[Explanation of symbols]

 1 Mobile Power Vehicle 2 Generator Control Panel 3 Engine Instrument 4 Generator Breaker 5 Output Terminal Board 8 Fender 9 Cable Connection Port 10 Power Cable 11 Cover 12 Lock 13 Mudguard 15 Door 17 Hinge

Front page continued (72) Creator Kazuyuki Kuramoto 38-1 Aida, Mikata-gun, Fukui Prefecture Denyo Co., Ltd. Fukui Factory

Claims (1)

[Scope of utility model registration request] 1. A power cable connection structure for a mobile power supply vehicle in which a power generator is mounted on a vehicle, wherein an output terminal of the power generator is arranged at a lower portion at a rear portion of a rear wheel of the vehicle, and the vehicle is below the output terminal. A power supply cable connection structure for a mobile power supply vehicle, characterized in that a hopper-shaped cable connection port that doubles as a rear mudguard is disposed, and an openable and closable cover is provided below the cable connection port.