JP6984384B2 - Mobile power car - Google Patents

Description

The present invention relates to a power generation device in which a prime mover and a generator are combined, and particularly relates to a configuration including a plurality of prime movers.

A power generation device that combines a prime mover and a generator can be used by being mounted on a moving body (for example, mounted on a loading platform) such as a mobile power supply vehicle, or as an emergency power supply device installed in a desired facility. It is known that it is housed in a housing and used.

As a specific example, as in Patent Document 1, a configuration that can be used as an emergency power source (emergency power source or the like) in the event of a power failure or disaster can be mentioned. Further, as in Patent Document 2, power loss and voltage drop during power supply for aircraft and the like can be suppressed, and power frequency conversion (for example, 50/60 Hz commercial power supply is used in the aircraft field at 400 Hz level). Configurations that can be used for conversion to high frequency power) can be mentioned.

For the prime mover of the generator, the one equipped with a rotary output shaft such as an internal combustion engine such as a diesel engine or an electric motor such as a motor and capable of transmitting the rotational motion of the rotary output shaft to the generator shall be applied. Can be mentioned.

In addition, considering the stable supply of electric power (for example, to prevent the supply from being interrupted) even in the event of a prime mover failure or maintenance, a study is being made to combine a plurality of power generation devices.

Japanese Unexamined Patent Publication No. 2003-274604 Japanese Unexamined Patent Publication No. 2000-335498

If a plurality of power generation devices as described above are simply combined, for example, if a plurality of prime movers are simply provided and a separate generator is combined with each of the prime movers, the size and weight of the power generation devices may increase. be.

The present invention has been made in view of such technical problems, and an object of the present invention is to provide a technique capable of contributing to miniaturization and weight reduction of a power generation device.

One aspect of the present invention includes a one-end side connecting portion that can switch between one end side of the internal combustion engine rotary output shaft and one end side of the generator rotor in a disconnected state or a connected state, one end side of the motor rotary output shaft, and a generator. The other end side connecting portion that can switch the other end side of the rotor to the disconnected state or the connected state is provided, and one of the one end side connecting portion and the other end side connecting portion is in the connected state. It is characterized in that the rotational torque of the rotary output shaft of the above is transmitted to the rotor of the generator to generate a generator.

The power generation device may have an internal combustion engine rotary output shaft and a motor rotary output shaft extending coaxially with the generator rotor. Further, one of the internal combustion engine rotary output shaft and the motor rotary output shaft extends coaxially with the generator rotor, and the other extends non-coaxially along the generator rotor, and the other. A torque transmission mechanism for transmitting rotational torque between the two and the generator rotor may be interposed. Further, at least one of the internal combustion engine and the electric motor may be started via an automatic start generator panel connected to the generator.

Another aspect is a mobile power supply vehicle in which the above-mentioned power generation device is housed in a housing and mounted, or an emergency power supply device in which the above-mentioned power generation device is housed and installed in the housing. And.

According to the present invention, it is possible to contribute to the miniaturization and weight reduction of the power generation device.

The schematic diagram for demonstrating the power generation apparatus 10A which is an example by this Embodiment. The schematic diagram for demonstrating the power generation apparatus 10B which is an example by this Embodiment (the schematic diagram which see through the inside of a housing 6).

The power generation device according to the embodiment of the present invention is completely different from a configuration in which a plurality of power generation devices are simply combined (for example, a configuration in which a plurality of prime movers are simply combined with a separate generator), and the two prime movers are used. It is a configuration in which one generator is combined with respect to the above.

That is, the internal combustion engine rotary output shaft is intermittently connected to one end side of the generator rotor via the one end side connecting portion, and the other end side of the generator rotor is connected to the other end side via the other end side connecting portion. It is a configuration in which the rotary output shafts of the electric motor are connected intermittently. Then, in a state where either one of the one end side connecting portion and the other end side connecting portion is connected (a state in which the rotation output shaft on one side is connected to the generator rotor), the rotational torque from the one side is generated. It is possible to generate a generator by transmitting it to the rotor.

According to the present embodiment as described above, since one generator can be responsible for the conversion (conversion to electric energy) of each rotational energy generated by the two prime movers (internal combustion engine and motor), each of the prime movers Eliminates the need to combine separate generators. That is, it is possible to contribute to the miniaturization and weight reduction of the power generation device.

When generating electricity from a generator of such a power generation device, either one of the one-side connection portion and the other end side connection portion (hereinafter, appropriately collectively referred to as a connection portion) is connected and the other is disconnected. It suffices to put it in a state and operate the prime mover on one side.

In addition, the output of each rotational energy after conversion to electrical energy can be output via the same output terminal, that is, the components (output cable, etc.) related to each output can be standardized and miniaturized. The handling workability (for example, wiring workability of the output cable, etc.) related to each output is also improved.

In addition, the situation where the rotational energy of either one of the two prime movers cannot be used (for example, in addition to the failure of the prime mover and the connecting part, the fuel runs out in the case of an internal combustion engine, the power supply disappears in the case of an electric motor, etc.) ), But if the rotational energy of the other side can be used, the connecting part and the prime mover on the other side are switched to the disconnected state and the stopped state, respectively, and the connecting part and the prime mover on the other side are connected and operated, respectively. By switching to the state, it is possible to easily generate electricity.

Further, switching between the states of the connecting portion and the prime mover as described above may be appropriately automated by using a sensor (for example, a sensor for detecting the status of the prime mover or the like) or an actuator (for example, an actuator for switching the state of the connecting portion). For example, it is possible to contribute to the improvement of workability (reduction of work time, etc.) related to power supply backup.

Further, when the power generation device as described above is housed in a housing and applied (for example, in the case of a mobile power supply vehicle, an emergency power supply device, etc.), it is possible to contribute to the housing efficiency of the housing.

Further, by interposing a torque transmission mechanism for transmitting rotational torque between the two of the internal combustion engine rotary output shaft and the motor rotary output shaft and the generator rotor, the generator , The arrangement configuration of the internal combustion engine and the electric motor can be variously changed, and when the power generator is housed in the housing as described above, it is possible to contribute to the housed efficiency.

As described above, the power generation device according to the present embodiment may have a configuration in which one generator is combined with two prime movers and one generator can be responsible for the conversion of each rotational energy, and is used in various fields. (For example, the field of internal combustion engine, the field of motor generator, the field of mobile body, the field of mobile power supply vehicle, the field of emergency power generation equipment, etc.) can be appropriately applied for design, and an example thereof is shown below. Things can be mentioned.

<Power generation device 10A as an example of this embodiment>
The power generation device 10A, which is an embodiment of the present embodiment shown in FIG. 1, has a hybrid structure mainly including a generator 1, an internal combustion engine 2, and an electric motor 3 (hereinafter, the generator 1, an internal combustion engine 2, and an electric motor 3 are simply grouped together. The main element is appropriately referred to as a main element), and the main element is supported on the support base 4 (in the figure, the main element is appropriately supported via the support frames 4a, 4b, the vibration-proof material 4c, etc.). Further, the one end side 21a of the rotary output shaft 21 of the internal combustion engine 2 and the one end side 11a of the rotor 11 of the generator 1 are intermittently connected by the one end side connecting portion 20. Further, the one end side 31a of the rotary output shaft 31 of the electric motor 3 and the other end side 11b of the rotor 11 are intermittently connected by the other end side connecting portion 30.

The generator 1 has a configuration including a rotor 11 and a stator 12 provided on the outer peripheral side of the rotor 11 and generates electric energy in response to the rotation of the rotor 11. Is. The rotary output shafts 21 and 31 are intermittently connected to the one end side 11a and the other end side 11b of the rotor 11 via the one end side connecting portion 20 and the other end side connecting portion 30, which will be described later, respectively.

Various aspects can be applied to such a generator 1, and the generator 1 is not particularly limited. The generator 1 in the figure has a configuration that can be appropriately controlled (for example, protection of the generator 1, extraction of electric energy, etc.) via an automatic start generator panel 5 having an input terminal 51a, an output terminal 51b, and the like. ing.

The internal combustion engine 2 has a rotary output shaft 21 and burns fuel inside the engine to generate rotational torque (rotational energy) by the rotary output shaft 21, and the rotary output shaft 21 is a rotor 11. It is supported by the support base 4 so as to extend coaxially. Various aspects can be applied to such an internal combustion engine 2, and although an example of a diesel engine type is shown in FIG. 1, a gas turbine engine, a gasoline engine, or the like may also be applied. ..

An exhaust unit 22 for exhausting exhaust gas from the operation of the internal combustion engine 2 is provided on the upper surface side of the internal combustion engine 2 in the figure, and the side surface side of the internal combustion engine 2 is operated by the internal combustion engine 2. A radiator 23 having cooling fins 23a for cooling heat is provided. Further, on the lower side of the internal combustion engine 2, a storage battery 24 for starting the internal combustion engine 2 and a fuel tank 25 for operation are arranged. When starting the internal combustion engine 2, the configuration may be controlled via the automatic start generator panel 5.

The electric motor 3 has a configuration including a rotary output shaft 31 and a stator 32 provided on the outer peripheral side of the rotary output shaft 31, and is operated by an external power source (commercial power source or the like) (not shown in the figure) to rotate and output. Rotational torque (rotational energy) is generated by the shaft 31, and the rotation output shaft 31 is supported by the support base 4 so as to extend coaxially with the rotor 11. Various aspects can be applied to such an electric motor 3, and the present invention is not particularly limited. For example, an external power source (not shown) may be connected to the input terminal 51a of the automatic start generator panel 5, and the motor 3 may be operated via the automatic start generator panel 5.

The one-end side connecting portion 20 is for freely connecting one end side 21a of the rotary output shaft 21 of the internal combustion engine 2 and the one end side 11a of the rotor 11 of the generator 1 in a disconnected state or a connected state. , The rotation torque of the rotation output shaft 21 can be transmitted to the rotor 11 when the connection state is switched. Various aspects can be applied to such one-end side connecting portion 20, and the present invention is not particularly limited. An example of this is a clutch of a meshing type, a friction type, a centrifugal type, or the like. Further, the state of the one-end side connecting portion 20 may be switched manually or automatically by using an actuator or the like (not shown).

The other end side connecting portion 30 is for freely connecting one end side 31a of the rotary output shaft 31 of the motor 3 and the other end side 11b of the rotor 11 of the generator 1 in a disconnected state or a connected state. The rotation torque of the rotation output shaft 31 can be transmitted to the rotor 11 when the connection state is switched to. Various aspects of the connecting portion 30 on the other end side can be applied, and the connection portion 30 is not particularly limited. As an example, the same clutch as the one-end side connecting portion 20 may be applied. Further, the configuration for switching to the disconnected state or the connected state of the other end side connecting portion 30 may be a configuration performed manually or may be performed automatically.

The automatic start generator panel 5 is not particularly limited as long as it can appropriately control the generator 1 and the like, and can protect the generator 1 and take out electric energy. As an example thereof, as described above, there is a configuration in which the internal combustion engine 2 and the electric motor 3 can be appropriately selected and operated. In addition, the status of the internal combustion engine 2 and the electric motor 3 (whether or not they can be operated, etc.) is detected via a sensor or the like (not shown), and the prime mover to be operated can be appropriately selected. It may be configured to switch the state of.

<Power generation device 10B which is an example of this embodiment>
In the power generation device 10A shown in FIG. 1, the main element is supported by the support base 4, and the rotary output shafts 21 and 31 are configured to extend coaxially with the rotor 11, respectively. The configuration is appropriately designed. It may be changed, and examples thereof include a power generation device 10B as shown in FIG. In FIG. 2, the same reference numerals as those in FIG. 1 are designated by the same reference numerals, and detailed description thereof will be omitted as appropriate.

The power generation device 10B of FIG. 2 supports the internal combustion engine 2 and the automatic start generator panel 5 on a support base 4 on the bottom wall side in a housing 6 having a desired shape. Further, in the generator 1 and the electric motor 3, both the rotary output shaft 31 and the rotor 11 extend coaxially at a position separated from the internal combustion engine 2 in the direction toward the ceiling of the housing 6, and the said. Both are fixedly supported via a fixed frame or the like (not shown) so as to extend non-coaxially along the rotary output shaft 21. Further, between the one end side 11a of the rotor 11 of the generator 1 (in the case of FIG. 2, the one end side connecting portion 20 provided on the one end side 11a) and the one end side 21a of the rotary output shaft 21, both of them. A torque transmission mechanism 7 for transmitting rotational torque is interposed between the two.

In the housing 6, various aspects can be applied as long as the configuration can accommodate the power generation device 10B and the like as described above, and for example, a configuration applicable to an emergency power supply device installed in a desired facility. Alternatively, a configuration that can be applied to a moving body such as a mobile power supply vehicle (for example, can be mounted on a loading platform or the like) can be mentioned. Further, a ventilation hole (not shown) may be appropriately provided in the housing 6 so that the exhaust gas, heat, etc. generated from the power generation device 10B can be discharged.

Further, the arrangement configuration of the main elements can be changed as appropriate, and is not limited to the arrangement configuration as shown in the figure. For example, a configuration in which both the generator 1 and the electric motor 3 are arranged on the depth direction side shown in the drawing or the front side shown in the drawing (for example, arranged so as to be supported on the support base 4 like the internal combustion engine 2) can be mentioned.

Further, the main elements may be appropriately arranged so that both the rotary output shaft 21 and the rotor 11 extend coaxially and both of them extend non-coaxially along the rotary output shaft 31. .. In the case of such an arrangement configuration, for example, the other end side 11b of the rotor 11 of the generator 1 (or the other end side connecting portion 30 provided on the other end side 11b as in FIG. 2) and the rotational output. A torque transmission mechanism 7 may be interposed between the shaft 31 and the one end side 31a so that the rotational torque can be transmitted between the two.

As described above, the torque transmission mechanism 7 has the rotor 11 of the generator 1 and the rotary output shaft extending non-coaxially with the rotor 11 (in the case of FIG. 2, the rotary output shaft of the internal combustion engine 2). Various embodiments can be applied as long as the rotational torque can be transmitted between the 21) and, for example, a configuration appropriately provided with a belt, a pulley, a gear mechanism, or the like, or a connecting portion (FIG. 2). In the case of, a configuration in which one end side connecting portion 20) is combined can be mentioned.

Although the above description has been made in detail only for the specific examples described in the present invention, it is clear to those skilled in the art that various changes and the like can be made within the scope of the technical idea of the present invention. It goes without saying that such changes belong to the scope of claims.

1 ... Generator 2 ... Internal combustion engine 3 ... Electric motor 4 ... Support stand 5 ... Automatic start generator panel 6 ... Housing 7 ... Torque transmission mechanism 10A, 10B ... Power generation device 11 ... Rotor 20, 30 ... Connecting part 21, 31 ... Rotating output shaft

Claims (2)

It is a mobile power generator that houses and mounts a power generation device in a housing.
The power generation device is
An internal combustion engine supported on the bottom wall side in the housing,
A generator and a motor supported above the internal combustion engine in the housing,
A switching freely one end connecting portion at one end to the cross-sectional state or connected state and one end of the rotor of the generator of the rotary output shaft of the internal combustion engine,
A switching freely other end side connecting portion and the other end of the rotor at one end and the generator of the rotary output shaft of the electric motor to the disconnection state or connected state,
Equipped with
The rotary output shaft of the motor extends coaxially with the rotor of the generator, and the rotary output shaft of the internal combustion engine extends non-coaxially along the rotor of the generator.
A torque transmission mechanism that transmits rotational torque between the rotary output shaft of the internal combustion engine and the rotor of the generator is interposed.
In one connection state of the one-side connecting portion and the other end side connecting portion, to power the generator by transmitting a rotational torque of the rotary output shaft of the connection state to the rotor of the generator A mobile power vehicle featuring. Wherein the at least one of the internal combustion engine and the electric motor, the moving power car according to claim 1, characterized in that to start through the automatic starter generator machine that is connected to the generator.

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