JP4664094B2 - Electric propulsion device for ships - Google Patents

Description

  The present invention relates to a marine electric propulsion device that drives a propulsion device with an electric motor.

Conventionally, as this type of marine electric propulsion apparatus, electric power generated by a generator is supplied to a load such as an electric motor or a cargo handling apparatus by a distribution board, and propulsion is performed by an electric motor that is rotated by the supplied electric power. A device that drives an apparatus (such as a propeller and a gear box) is known (for example, see Patent Document 1).
Japanese Patent Laid-Open No. 2004-17805

  Incidentally, the generator is usually installed in the engine room, while the switchboard is arranged in the control room. In that case, since the engine room and the control room are separated from each other, the electricity generated by the generator is sent to the switchboard via the electrical path, and from the switchboard to the load such as the generator, the motor, and the cargo handling device, respectively. Power is supplied so as to be distributed. Therefore, the electrical path length from the generator to the switchboard becomes very long and complicated, and the wiring space of the electrical path increases.

  The present invention has been made in view of such points, and an object of the present invention is to provide electric propulsion for ships that can shorten the length of the electrical path from the generator and reduce the wiring space of the electrical path. To provide an apparatus.

The electric propulsion device for a ship according to the present invention feeds electricity generated by the generator so as to be distributed to the propulsion motor by the switchboard, and drives the propulsion device by the propulsion motor rotated by the supplied electricity. In the marine electric propulsion apparatus, the switchboard is connected to a generator panel that controls electricity generated by the generator, and a separate electric path to which a bus duct is applied. The generator panel is separated into a plurality of power supply panels that respectively supply electricity to the propulsion motor, and the generator constitutes a plurality of engine units that are arranged in parallel and spaced apart from each other. juxtaposed, the generator plate is disposed in a state of being laid on the upper side of the generator, the electrical path to the generator plate from the generator is disposed not exposed to the outside, Serial plurality of feeding board is characterized in that it is installed in the control chamber is a separate chamber from the engine room to the generator plate is arranged.

Due to this specific matter, the generator panel separated from the switchboard is installed in the vicinity of the generator, so an electrical path to each power supply panel is required for separation from the generator panel. The length of the electrical path from the machine to the generator board can be made very short and simple, and the wiring space of the electrical path can be reduced. Furthermore, since the generator panel is installed on the upper side of the generator, the electrical path length from the generator to the generator panel can be made very short and simple, and the generator to the generator panel can be simplified. It is also possible to improve the appearance without exposing the electrical path to the outside. Moreover, the installation space for the generator panel is not required, and the installation space can be greatly reduced as compared with the case where the switchboard is installed.

  In short, by installing the generator panel separated from the switchboard in the vicinity of the generator, the electrical path length from the generator to the generator panel can be made very short and simple, and the electrical path Wiring space can be reduced.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 shows an electric propulsion ship equipped with a marine electric propulsion device, and this electric propulsion ship S is provided with a fish hold 1 for storing loads such as harvested fish. The fish hold 1 is provided with a refrigerator (not shown) so that harvested fish can be stored frozen. An electric motor room 2 partitioned from the fishhouse 1 is provided at the rear of the electric propulsion ship S. An engine room 3 is provided between the electric motor room 2 and the fishhouse 1 and separated from the electric motor room 2 and the fishhouse 1.

  The electric motor room 2 is provided with a marine electric propulsion device 20. As shown in FIG. 2, the marine electric propulsion device 20 includes first and second propulsion motors 23 as electric motors that individually drive left and right first and second propellers 21 and 22 as propulsion devices, respectively. 24, the driving force of each of the propulsion motors 23, 24 is decelerated by a speed reducer 29 and transmitted to the propellers 21, 22. The electric motor room 2 is provided with a rudder angle changing device 26 for changing the rudder angle of the rudder 25. In this case, the propulsion motors 23 and 24 and the rudder angle changing device 26 are driven (rotated) by electricity supplied by a switchboard 4 described later.

  The engine room 3 is provided with first to third engine units 31 to 33. Each engine unit 31 to 33 includes a diesel engine 34 and a generator 35 driven by the diesel engine 34. The generators 35 of the engine units 31 to 33 are provided side by side with a predetermined interval in a state where the rotation shafts are arranged in parallel with each other. The electric propulsion vessel S distributes electricity generated by the generator 35 of each of the engine units 31 to 33 to the propulsion motors 23 and 24, the rudder angle changing device 26, and the drive motor 36 of the refrigerator. As shown, a switchboard 4 (appearing in FIG. 3) for supplying power is provided.

  As shown in FIGS. 3 and 4, the switchboard 4 includes a generator board 41 that controls electricity generated by the generator 35 of each of the engine units 31 to 33, and individual generator boards 41. Electricity connected through the electrical paths 44a and 44b and controlled by the generator panel 41 is used for inboard loads 5 such as the propulsion motors 23 and 24, the rudder angle changing device 26, and the drive motor 36 of the refrigerator (FIG. 2). Are separated into two power supply panels 42 and 43 for supplying power so as to be distributed. Moreover, the said generator panel 41 is installed in the state constructed by the upper side of the generator 35 of each said engine units 31-33. In this case, the power supply panels 42 and 43 are installed in a control room (not shown). Further, bus ducts are applied as the electric paths 44a and 44b.

  Therefore, in the said embodiment, since the generator board 41 isolate | separated from the switchboard 4 is installed in the state installed in the upper side of the generator 35 of each engine unit 31-33, it isolate | separates from the generator board 41. Accordingly, although electrical paths 44a and 44b between the power supply panels 42 and 43 are required, the electrical path length from the generator 35 to the generator panel 41 of each engine unit 31 to 33 is very short and simple. In addition, the wiring space of the electric paths 44a and 44b can be reduced.

  In addition, the appearance can be improved without exposing the electrical path from the generator 35 to the generator panel 41 of the engine units 31 to 33 to the outside. In addition, the installation space for the generator panel 41 is not required, and the installation space can be greatly reduced as compared with the case where the switchboard is installed.

  Furthermore, when one of the power supply panels 42 (or 43) fails or when one of the electrical paths 44a (or 44b) between the generator panel 41 and each of the power supply panels 42 and 43 is disconnected, the other power supply panel 43 ( Or 42), or the other electric path 44b (or 44a) between the generator panel 41 and each of the power supply panels 42 and 43 generates electricity generated by the generator 35 of each engine unit 31 to 33. 23, 24, the rudder angle changing device 26, and the drive motor 36 (inboard load 5) of the refrigerator are supplied with power so that smooth navigation and adverse effects on the inboard load can be prevented. it can.

  In addition, this invention is not limited to the said embodiment, The other various modifications are included. For example, in the above-described embodiment, the distribution board 4 is separated into the generator board 41 and the two power supply boards 42 and 43. However, the distribution board may be separated into the generator board and three or more power supply boards.

  Moreover, in the said embodiment, although installed in the state in which the generator panel 41 was constructed on the upper side of the generator 35 of each engine unit 31-33, the generator panel may be installed in the vicinity of the generator, In this case, although the electrical path from the generator of each engine unit to the generator panel is exposed to the outside, the electrical path length from the generator of each engine unit to the generator panel is very short and simplified. In addition, the wiring space of the electric path can be reduced.

  And in the said embodiment, although the case where it applied to the electric propulsion ship S provided with the fish hold 1 which stores loads, such as harvested fish, was described, it is limited to what was equipped with the refrigerator in the fish hold. Needless to say, the present invention can also be applied to a fishhouse capable of carrying any cargo or a passenger ship equipped with a cabin.

  Furthermore, in the above embodiment, the steering angle changing device 26 that changes the steering angle of the rudder 25 is provided in the motor chamber 2, but the first and second propulsion motors are configured to be rotatable around the vertical axis, and the first Further, the course of the ship may be changed by rotating the second propulsion motor. In that case, the rudder and the rudder angle changing device can be eliminated to increase the degree of design freedom.

It is sectional drawing which looked at the rear part of the electric propulsion ship provided with the electric propulsion apparatus for ships which concerns on embodiment of this invention from the side. It is a block diagram which shows the structure of the electric propulsion apparatus for ships. It is a perspective view which shows the state which isolate | separated the switchboard into the generator panel and two electric power feeding panels. It is a circuit diagram with a generator board and two electric power feeding boards.

Explanation of symbols

20 Marine Electric Propulsion Device 21 First Propeller (Propulsion Device)
22 Second propeller (propulsion device)
23 First propulsion motor (motor)
24 Second propulsion motor (motor)
35 Generator 4 Distribution panel 41 Generator panel 42, 43 Power supply panel

Claims (1)

In the electric propulsion device for a ship, the electric power generated by the generator is fed so as to be distributed to the propulsion motor by the switchboard, and the propulsion device is driven by the propulsion motor rotated by the fed electric power.
The switchboard is connected to a generator panel for controlling electricity generated by the generator and a separate electrical path to which a bus duct is applied to the generator panel, and the electricity from the generator panel is transferred to the generator panel. It is separated into a plurality of power supply panels that supply power to the propulsion motors.
The generator is provided side by side with a plurality of engine units arranged parallel to each other with the rotation axes arranged in parallel,
The generator panel is installed in a state of being erected on the upper side of the generator, and the electrical path from the generator to the generator panel is arranged without exposing to the outside,
The electric propulsion apparatus for ships, wherein the plurality of power supply panels are installed in a control room which is a room different from the engine room in which the generator panel is arranged.

Images