JP6338969B2 - Backup system for railway waste disposal equipment - Google Patents

Description

  The present invention relates to a railroad vehicle waste disposal apparatus capable of reliably operating a waste disposal apparatus during a power failure.

  For example, as described in Patent Document 1 below, a railway vehicle is provided with a waste disposal apparatus. This waste disposal apparatus can feed the waste in the transfer tank to the waste tank by supplying compressed air. Moreover, since the waste disposal apparatus is provided with the power supply circuit and the control circuit, it can operate | move by supplying electric power.

  Here, a conventional electric circuit for supplying power to the waste disposal apparatus will be described with reference to FIG. As shown in FIG. 12, the waste disposal apparatus 210 is electrically connected to a normal power source 220. For this reason, in a normal time, the waste disposal apparatus 210 is operated by supplying power from the normal power supply 220. In addition, in the electric circuit DK1, a main battery 230 and an auxiliary electric air compressor 240 are provided in case the power supply from the normal power source 220 is interrupted as in the case of a power failure.

  The auxiliary electric air compressor 240 generates compressed air to be supplied to the pantograph so that a pantograph (not shown) can be moved at any time. For this reason, the auxiliary electric air compressor 240 is electrically connected to the main battery 230. The main battery 230 is electrically connected to important equipment such as lighting, broadcasting, and train radio (not shown) and is also electrically connected to the waste disposal apparatus 210. For this reason, in the electric circuit DK1, the power of the main battery 230 is supplied to the waste disposal device 210 and the auxiliary electric air compressor 240 at the time of a power failure.

  Conventionally, an air circuit for supplying compressed air to the waste disposal apparatus 210 (air circuit swivel diagram) will be described with reference to FIG. As shown in FIG. 13, one main pipe 310 extending in the traveling direction of the railway vehicle is disposed under the floor of each vehicle, and compressed air flows through the main pipe 310. The compressed air flowing through the main pipe 310 is supplied to a brake control device, a side sliding door device, a vehicle body tilting device, etc. (not shown) provided in the railway vehicle. One branch pipe 310 d branches from the main pipe 310 and is connected to the waste disposal apparatus 210. For this reason, in this air circuit KK1, the air flowing through the main pipe 310 is supplied to the waste disposal apparatus 210 through the branch pipe 310d.

JP 2007-106857 A

  However, conventionally, when a power failure occurs for a long time, electric power and compressed air are not supplied to the waste disposal apparatus, and there is a problem that it cannot be reliably operated. That is, when power supply from the normal power supply 220 is interrupted due to a power failure, the waste disposal apparatus 210 cannot obtain power from the normal power supply 220 as shown in FIG. There is a need. On the other hand, the main battery 230 supplies power preferentially to important devices such as lighting, broadcasting, and train radio. If the main battery 230 continues to supply power to the auxiliary electric air compressor 240 that generates compressed air, the main battery 230 will soon rise. Thus, there is a problem that the power of the main battery 230 cannot be supplied to the waste disposal apparatus 210 during a power failure.

  In addition, during a power failure, the consumption of compressed air can be suppressed. However, in order to operate the waste disposal apparatus 210, it is necessary to supply a large amount of compressed air. For this reason, at the time of a power failure, as shown in FIG. 13, if the waste disposal apparatus 210 uses the compressed air which flows through the main piping 310, the air circuit KK1 may fall. As a result, when power is restored from a power failure, the emergency brake is activated and the pantograph cannot be moved. Thus, there is a problem that the compressed air flowing through the main pipe 310 cannot be supplied to the waste disposal apparatus 210 during a power failure.

  Therefore, the present invention has been made to solve the above-described problems, and supplies sewage treatment equipment with electric power and compressed air during a power outage so that the sewage treatment equipment can be reliably operated. An object of the present invention is to provide a backup system for a device.

  A railroad vehicle waste disposal apparatus backup system according to the present invention includes a railway vehicle and a waste disposal apparatus that is operated by electric power and compressed air, an electric air compressor that is driven by electric power to generate compressed air, and A normal power source capable of supplying power to the waste disposal apparatus, a main battery capable of supplying power to the electric air compressor, and a normal air passage for sending compressed air to the waste disposal apparatus A backup battery for supplying power in the event of a power failure, an electrical connection between the normal power source and the waste disposal device, and an electrical connection between the main battery and the electric air compressor during a power failure And an electrical connection state between the backup battery and the waste disposal apparatus, and the backup battery and the electric air compression. A power supply switching circuit for securing an electrical connection state with a device, an auxiliary air passage for sending compressed air from the electric air compressor to the waste disposal device, and an air supply state of the normal air passage during a power failure And an air passage switching means for ensuring an air supply state of the auxiliary air passage.

  In this case, at the time of a power failure, the power supply switching circuit cuts off the electrical connection state between the normal power source and the waste disposal apparatus and the electrical connection state between the main battery and the electric air compressor. At the same time, the power supply switching circuit ensures an electrical connection state between the backup battery and the waste disposal apparatus and an electrical connection state between the backup battery and the electric air compressor. For this reason, at the time of a power failure, the electric power of a backup battery can be supplied to a waste disposal apparatus and an electric air compressor. Accordingly, the waste disposal apparatus can be operated electrically, and the auxiliary electric air compressor can generate a large amount of compressed air.

  Further, at the time of a power failure, the air supply state of the normal air passage is interrupted by the air passage switching means, and the air supply state of the auxiliary air passage is ensured. For this reason, at the time of a power failure, the compressed air produced in large quantities by the electric air compressor can be sent to the waste disposal apparatus through the auxiliary air passage. Therefore, even during a power outage, power and compressed air can be supplied to the waste disposal apparatus and can be reliably operated.

  Further, in the backup system for a railway vehicle waste disposal apparatus according to the present invention, the electric air compressor includes an auxiliary air tank that stores compressed air for moving a pantograph, and an auxiliary electric tank that feeds the compressed air generated in the auxiliary air tank. It is preferable that it is an auxiliary electric air compressor provided with an air compressor.

  In this case, an existing auxiliary electric air compressor is used as a device for sending compressed air to the waste disposal apparatus. For this reason, it is not necessary to install a new electric air compressor, and the existing equipment is used, so that the system is excellent in terms of space and cost.

  Further, in the backup system for a railway vehicle waste disposal apparatus according to the present invention, when the power switching circuit recovers power from a power failure, the electrical connection state between the normal power source and the waste disposal apparatus, and the main An electrical connection state between the battery and the electric air compressor is secured, and an electrical connection state between the backup battery and the waste disposal device, and an electrical connection between the backup battery and the electric air compressor It is preferable to have a power failure detection relay that cuts off the connection state.

  In this case, when the power is restored from the time of the power failure, the waste treatment device can automatically switch from the power supply from the backup battery to the power supply from the normal power source by the power failure detection relay. At the same time, the auxiliary electric air compressor can automatically switch from the power supply from the backup battery to the power supply from the main battery.

  In the backup system for a railway vehicle waste disposal apparatus according to the present invention, the normal power source and the backup battery are connected by a charging circuit, and the charging circuit is connected to the backup battery from the normal power source. It is preferable that a charger capable of supplying electric power to charge the backup battery is provided.

  In this case, the power of the normal power source is supplied to the backup battery at normal times, and the backup battery can be charged. For this reason, at the time of a power failure, the power of the fully charged backup battery can be supplied to the waste disposal apparatus and the auxiliary electric air compressor.

  In the backup system for a railway vehicle waste disposal apparatus according to the present invention, the auxiliary air passage is provided with a pressure switch for detecting whether or not the air pressure of the compressed air fed to the waste disposal apparatus is insufficient. The power supply switching circuit preferably secures an electrical connection state between the backup battery and the electric air compressor only when the pressure switch detects that the air pressure is insufficient.

  In this case, the electrical connection state between the backup battery and the electric air compressor is ensured only when the pressure switch detects a lack of air pressure of the compressed air sent to the waste disposal apparatus. Therefore, at this time, electric power is supplied from the backup battery to the electric air compressor, and the electric air compressor can generate compressed air in a situation where the waste disposal apparatus requires compressed air. In other words, when the compressed air sent to the waste disposal apparatus has a sufficient air pressure, the electrical connection between the backup battery and the electric air compressor is interrupted. For this reason, at this time, power is not supplied from the backup battery to the electric air compressor, and it is possible to prevent the compressed air from being generated wastefully.

  According to the backup system for a railway vehicle waste disposal apparatus of the present invention, power and compressed air can be supplied to the waste disposal apparatus in the event of a power failure, and the waste disposal apparatus can be reliably operated.

It is the figure which showed the waste disposal apparatus typically. In this embodiment, it is the figure which showed the electric circuit for supplying electric power to a waste disposal apparatus. It is the flowchart which showed operation | movement of the electric circuit. It is the figure which showed the electric power supply state of the electric circuit at the normal time. It is the figure which showed the electric power supply state of the electric circuit at the time of a power failure. It is the figure which showed the electric power supply state of the electric circuit after pressing the power supply switch. It is the figure which showed the electric power supply state immediately after restoring electric power from the time of a power failure. It is the figure which showed the electric power supply state when pressing a reset switch. In this embodiment, it is the figure which showed the air circuit for supplying compressed air to a waste disposal apparatus. It is the figure which showed the state through which compressed air flows in the air circuit at the normal time. It is the figure which showed the state through which compressed air flows in the air circuit at the time of a power failure. It is the figure which showed the electric circuit for supplying electric power to a waste disposal apparatus conventionally. It is the figure which showed the air circuit for supplying compressed air to a waste disposal apparatus conventionally.

  An embodiment of a backup system for a railway vehicle waste disposal apparatus according to the present invention will be described below with reference to the drawings. FIG. 1 is a diagram schematically showing the waste disposal apparatus 10.

<Configuration of the waste disposal apparatus 10>
The waste disposal apparatus 10 is provided in a railway vehicle, and includes a western-style toilet 11, a urinal 12, and a waste tank 13, as shown in FIG. The western toilet 11 and the urinal 12 are connected to the waste tank 13 via the sewage pipes 14 and 15, respectively.

  The western toilet 11 employs a vacuum processing structure. In this western style toilet 11, a bowl 11a that directly receives excreta is connected to a transfer tank 11b, and the transfer tank 11b is connected to a filth tank 13 via a sewage pipe 14.

  When letting the excrement in the bowl 11a flow, first, the pressure in the sealed transfer tank 11b is lowered, and vacuuming is performed. And the bowl 11a and the transfer tank 11b are made into a communication state. Thereby, the excrement in the bowl 11a is drawn into the transfer tank 11b.

  Next, the inside of the transfer tank 11b is sealed, compressed air is sent into the transfer tank 11b, and the inside of the transfer tank 11b is pressurized. And the transfer tank 11b and the sewage piping 14 are made into a communication state. Thereby, the excrement in the transfer tank 11b is pushed out and sent into the filth tank 13 through the sewage pipe 14.

  On the other hand, in the urinal 12, excrement flows through the sewage pipe 15 to the filth tank 13 as it is. The sewage pipe 15 is provided with a normally open hose valve 16. The opening / closing operation of the hose valve 16 is controlled by supplying electric power.

  As described above, when the excrement is sent from the pressurized transfer tank 11b to the filth tank 13, the filth tank 13 is also pressurized. Thereby, the odor in the filth tank 13 may leak into the vehicle through the sewage pipe 15 and the urinal 12. Accordingly, the hose valve 16 is closed so that odors do not flow back through the sewage pipe 15 when excrement is fed into the filth tank 13.

  Thus, the waste disposal apparatus 10 can flow excrement when supplied with compressed air, and can operate devices such as the hose valve 16 when supplied with electric power. Here, FIG. 2 is a diagram showing an electric circuit DK for supplying power to the waste disposal apparatus 10 in the present embodiment.

<Configuration of electric circuit DK>
As shown in FIG. 2, in the electric circuit DK, in addition to the waste disposal apparatus 10, a normal power supply 20, a main battery 30, and an auxiliary electric air compressor 40 are provided. The waste disposal apparatus 10 includes a power supply circuit 17 and a control circuit 18 and operates when power is supplied to the power supply circuit 17 and the control circuit 18.

  The normal power source 20 supplies electric power to the waste disposal apparatus 10 at normal times and supplies electric power to important devices (not shown) such as lighting, broadcasting, and train radio. This normal power supply 20 is electrically connected to the above-mentioned important equipment via a conducting wire 21.

  The conducting wire 22 branched from the conducting wire 21 is electrically connected to the power supply circuit 17 of the waste disposal apparatus 10 and can supply power to the power supply circuit 17 with the contact 70a of the relay 70 closed. Further, the lead wire 23 branched from the lead wire 21 is electrically connected to the control circuit 18 of the waste disposal apparatus 10 and can supply power to the control circuit 18 in a state where the contact 70b of the relay 70 is closed.

  The main battery 30 supplies power to important equipment even when the power supply from the normal power supply 20 is interrupted, such as during a power failure. The main battery 30 is electrically connected to a conducting wire 32 branched from the conducting wire 31, and can supply power to important equipment via the conducting wires 31 and 32. The main battery 30 is electrically disconnected from the normal power source 20 so that power can be reliably supplied to important equipment even during a power failure.

  The auxiliary electric air compressor 40 is an existing electric air compressor for generating compressed air to be supplied to the pantograph so that a pantograph (not shown) can be moved at any time. The auxiliary electric air compressor 40 is electrically connected to a conductor 41 branched from the conductor 31 and is supplied with power from the main battery 30 with the contact 80a of the relay 80 closed.

  By the way, when a railroad vehicle has a power failure due to an accident or the like, the power supply from the normal power supply 20 is cut off. For this reason, the waste disposal apparatus 10 cannot obtain power from the normal power supply 20. Further, at the time of a power failure, the main battery 30 preferentially supplies power to important devices. For this reason, it is not preferable that the auxiliary electric air compressor 40 and the waste disposal apparatus 10 obtain power from the main battery 30 in order to prevent the main battery 30 from rising.

  Therefore, in this embodiment, a backup battery 50 is newly provided separately from the main battery 30. Further, a power supply switching circuit 60 is newly provided in the conventional electric circuit. The power supply switching circuit 60 cuts off the electrical connection state between the normal power supply 20 and the waste disposal apparatus 10 and ensures the electrical connection state between the backup battery 50 and the waste disposal apparatus 10. Further, the power supply switching circuit 60 cuts off the electrical connection state between the main battery 30 and the auxiliary electric air compressor 40 and ensures the electrical connection state between the backup battery 50 and the auxiliary electric air compressor 40. It has become.

  The backup battery 50 supplies power to the waste disposal apparatus 10 and the auxiliary electric air compressor 40 during a power failure. Here, one end 51 a of the conducting wire 51 is electrically connected to the auxiliary electric air compressor 40, and the other end 51 b of the conducting wire 51 is electrically connected to the backup battery 50. Since the contact 80b of the relay 80 is normally open, the power of the backup battery 50 is not supplied to the auxiliary electric air compressor 40.

  A conductive wire 52 is provided to electrically connect the backup battery 50 and the normal power supply 20. One end 52 a of the conducting wire 52 is connected to the conducting wire 51, and the other end 52 b of the conducting wire 52 is connected to the conducting wire 21. The lead wire 52 is provided with a charger 100, and the contact 90a of the relay 90 is normally closed. For this reason, at the normal time, the power of the normal power source 20 is supplied to the backup battery 50 and the backup battery 50 is charged.

  Here, the portion from the backup battery 50 to one end 52a of the conductor 52 in the conductor 21, the portion from the normal power supply 20 to the other end 52b of the conductor 52 in the conductor 52, and the portion of the conductor 21 in the "charging" of the present invention. Corresponds to the “use circuit”.

  In the power supply switching circuit 60, the conducting wire 61 branched from the conducting wire 51 is in parallel on the upstream side (upper side in FIG. 2) and the downstream side (lower side in FIG. 2). One of the upstream parallel portions of the conducting wire 61 is provided with a power supply switch 62 and a contact 90b of the relay 90, and the other is provided with a contact 70f of the relay 70, a contact 90c of the relay 90, and a reset switch 65. ing. Moreover, the pressure switch 63 and the coil 80c of the relay 80 are provided on one side among the parallel portions on the downstream side of the conducting wire 61, and the coil 70c of the relay 70 is provided on the other side.

  Further, the conducting wire 66 branched from the conducting wire 61 is electrically connected to the power supply circuit 17 of the waste disposal apparatus 10. The power supply circuit 17 is not supplied with power from the backup battery 50 because the contact point 70d of the relay 70 is open at normal times. Further, the conducting wire 67 branched from the conducting wire 61 is electrically connected to the control circuit 18 of the waste disposal apparatus 10. The control circuit 18 is not supplied with power from the backup battery 50 because the contact 70e of the relay 70 is open at normal times.

  The power supply switch 62 closes the contacts when pressed manually, and switches the power supply system from the normal power supply 20 to the power supply system from the backup battery 50. The pressure switch 63 detects whether the air pressure of the compressed air sent to the waste disposal apparatus 10 is insufficient. The pressure switch 63 closes the contact point only when the lack of air pressure is detected. The reset switch 65 opens a contact point when manually pressed, and switches the power supply system from the backup battery 50 to the power supply system from the normal power supply 20.

  When the coil 70c is energized and excited, the relay 70 opens and closes the contacts 70a and 70d and opens and closes the contacts 70b and 70e. The relay 80 opens and closes the contacts 80a and 80b when the coil 80c is energized and excited.

  Here, the conductive wire 21 extending from the normal power supply 20 is provided with a coil 90 d of the relay 90. The coil 90d of the relay 90 is energized by the normal power source 20 at the normal time. For this reason, normally, the contacts 90b and 90c of the relay 90 are opened when the coil 90d of the relay 90 is excited.

  On the other hand, the coil 90d of the relay 90 is not energized because the power supply of the normal power supply 20 is interrupted during a power failure. For this reason, at the time of a power failure, the coil 90d of the relay 90 is demagnetized and the contacts 90b and 90c of the relay 90 are closed. The contact 90a of the relay 90 is closed when the coil 90d is excited and opened when the coil 90d is demagnetized. This relay 90 corresponds to the “power failure detection relay” of the present invention.

  Next, the operation of the electric circuit DK of the present embodiment will be described with reference to FIGS. FIG. 3 is a flowchart showing the operation of the electric circuit DK. 4-8, the conducting wire which is an energized state is shown by the thick line.

<Normal time>
FIG. 4 is a diagram illustrating a power supply state of the electric circuit DK at a normal time. As shown in FIG. 4, power supply from the normal power supply 20 is ensured during normal times (step S <b> 1 in FIG. 3). Thereby, the electric power of the normal power supply 20 is supplied to the power supply circuit 17 and the control circuit 18 of the waste disposal apparatus 10. For this reason, the waste disposal apparatus 10 can operate electrically. Further, the power of the normal power supply 20 is supplied to the backup battery 50 by the charger 100. For this reason, the backup battery 50 can be charged.

  On the other hand, since the coil 90d of the relay 90 is energized and excited, the contacts 90b and 90c are open. For this reason, the power of the backup battery 50 is not supplied to the power supply switching circuit 60. Further, the contact 80a of the relay 80 is closed while the contact 80b of the relay 80 is open. For this reason, the auxiliary electric air compressor 40 can obtain power from the main battery 30.

<When a power failure occurs>
FIG. 5 is a diagram illustrating a power supply state of the electric circuit DK when a power failure occurs. As shown in FIG. 5, when a power failure occurs (step S2 in FIG. 3), the power supply from the normal power source 20 is cut off. As a result, the power supply circuit 17 and the control circuit 18 of the waste disposal apparatus 10 cannot obtain power. Since the coil 90d of the relay 90 is not energized and demagnetized, the contacts 90b and 90c are closed. At this time, since the contact 90a is opened, the power of the backup battery 50 is not supplied to the normal power source 20.

<When the power switch is pressed during a power failure>
FIG. 6 is a diagram showing a power supply state of the electric circuit DK after the power supply selector switch 62 is pressed. When the power switch 62 is pressed after a power failure (step S3 in FIG. 3), the contact of the power switch 62 is closed from the state shown in FIG. Thereby, the coil 70c of the relay 70 and the coil 80c of the relay 80 are energized. The pressure switch 63 detects that the compressed air sent to the waste disposal apparatus 10 has insufficient air pressure, and closes its contact.

  As a result, since the coil 70c of the relay 70 is excited, the contact 70a is opened while the contact 70d is closed and the contact 70b is opened as shown in FIG. 6 from the state shown in FIG. The contact 70e is closed. Thereby, the power of the backup battery 50 is supplied to the power supply circuit 17 and the control circuit 18 of the waste disposal apparatus 10. Thus, the waste disposal apparatus 10 can be electrically operated by switching from the power supply from the normal power supply 20 to the power supply from the backup battery 50 in the event of a power failure.

  Further, since the coil 80c of the relay 80 is excited, the contact 80a is opened while the contact 80b is closed. Thereby, the electric power of the backup battery 50 is supplied to the auxiliary electric air compressor 40. In this way, the auxiliary electric air compressor 40 can be driven by switching the power supply from the main battery 30 to the power supply from the backup battery 50 by pressing the power switch 62 during a power failure.

  Therefore, by driving the auxiliary electric air compressor 40, sufficient compressed air for moving the pantograph can be secured, and the situation where the pantograph does not move can be reliably prevented even during a power failure. In addition, since the main battery 30 does not supply power to the auxiliary electric air compressor 40 and the waste disposal apparatus 10 at the time of a power failure, it is possible to sufficiently secure power supplied to important equipment such as lighting, broadcasting, and train radio.

  In the power supply switching circuit 60, as shown in FIG. 6, when the coil 70c of the relay 70 is excited, the contact 70f is closed. For this reason, the current flows to the other of the parallel portions on the upstream side of the conducting wire 61, and the coil 70c of the relay 70 continues to be excited. As a result, the contact 70d, 70e is closed and the contact 70a, 70b is opened. Thus, the power supply switching circuit 60 is a self-holding circuit.

<When power is restored after a power failure>
FIG. 7 is a diagram illustrating a power supply state immediately after power is restored from the time of a power failure. As shown in FIG. 7, the power supply from the normal power supply 20 is restored (step 4 in FIG. 3). Thereby, the coil 90d of the relay 90 is energized and excited, and the contacts 90b and 90c of the relay 90 are opened. For this reason, the coil 70c of the relay 70 and the coil 80c of the relay 80 are not energized and are demagnetized.

  Accordingly, as shown in FIG. 4 from the state shown in FIG. 7, the contact 70a is closed while the contact 70d is opened, and the contact 70b is closed while the contact 70b is closed. Thus, in the waste disposal apparatus 10, when power is restored after a power failure, the power supply from the backup battery 50 is automatically switched to the power supply from the normal power supply 20.

  Moreover, as shown in FIG. 4 from the state shown in FIG. 7, the contact 80b is opened while the contact 80a is closed. Thus, in the auxiliary electric air compressor 40, when power is restored after a power failure, the power supply from the backup battery 50 is automatically switched to the power supply from the main battery 30.

<When the reset switch is pressed during a power failure>
FIG. 8 is a diagram illustrating a power supply state when the reset switch 65 is pressed. When the reset switch 65 is pressed from the power failure state shown in FIG. 6 (step S5 in FIG. 3), the contact of the reset switch 65 is opened as shown in FIG. As a result, the coil 70c of the relay 70 and the coil 80c of the relay 80 are not energized and are demagnetized.

  Therefore, as shown in FIG. 2 from the state shown in FIG. 8, the contact 70d is opened while the contact 70a is closed, and the contact 70e is opened while the contact 70b is closed. Further, the contact 80b is opened while the contact 80a is closed. Thus, the normal power supply 20 is in a standby state until the power is restored. If the power supply of the normal power supply 20 is restored, the power of the normal power supply 20 is supplied to the power supply circuit 17 and the control circuit 18 of the waste disposal apparatus 10 as shown in FIG. It will be supplied to the air compressor 40. Therefore, by manually operating the reset switch 65, the power source of the waste disposal apparatus 10 and the auxiliary electric air compressor 40 can be switched.

  By the way, as mentioned above, the waste disposal apparatus 10 can operate appropriately by supplying not only electric power but also compressed air. For this reason, below, the structure by which compressed air is supplied to the filth-treatment apparatus 10 at the time of a power failure is demonstrated. FIG. 9 is a diagram (air circuit jump diagram) showing an air circuit KK for supplying compressed air to the waste disposal apparatus 10 in the present embodiment.

<Configuration of air circuit KK>
As shown in FIG. 9, in the air circuit KK, one main pipe 110 extending in the traveling direction of the railway vehicle is arranged under the floor of each vehicle. Compressed air flows through the main pipe 110. Here, FIG. 9 shows an air circuit that straddles two vehicles, and shows a connector 120 that connects the two vehicles in the center of FIG. 9.

  The main piping 110 is connected to a brake control device, a side sliding door device, a vehicle body tilting device, and the like provided in each vehicle via a branched piping (not shown). For this reason, the compressed air which flows through the main piping 110 is sent into a brake control apparatus, a side sliding door apparatus, and a vehicle body tilting apparatus, and these each apparatus operate | moves.

  Here, the main pipe 110 on the left side in FIG. 9 is called a main pipe 110a, and the main pipe 110 on the right side in FIG. 9 is called a main pipe 110b. The compressed air flowing through the main pipes 110a and 110b can come and go through the connector 120.

  The auxiliary electric air compressor 40 described above includes an auxiliary air tank 42 that stores compressed air for moving the pantograph, and an auxiliary electric air compressor 43 that feeds the compressed air generated in the auxiliary air tank 42. The auxiliary air tank 42 is connected to a branch pipe 110c branched from the main pipe 110a. In the electric circuit DK described above, the electric power supplied to the auxiliary electric air compressor 40 is sent to the auxiliary electric air compressor 43 in detail.

  Further, the above-described waste disposal apparatus 10 is connected to a branch pipe 110d branched from the main pipe 110b. For this reason, normally, the compressed air flowing through the main pipe 110b is sent to the waste disposal apparatus 10 through the branch pipe 110d, and the waste disposal apparatus 10 is activated.

  By the way, at the time of a power failure, consumption of compressed air can be suppressed. However, in order to operate the waste disposal apparatus 10, it is necessary to supply a large amount of compressed air. For this reason, if the waste disposal apparatus 10 uses compressed air flowing through the main pipe 110b, the air circuit KK may fall.

  Therefore, this embodiment is characterized in that compressed air is supplied to the waste disposal apparatus 10 at the time of a power failure using the existing auxiliary electric air compressor 40. That is, even during a power failure, as described above, power is supplied from the backup battery 50 to the auxiliary electric air compressor 43. For this reason, the auxiliary electric air compressor 43 can generate a large amount of compressed air and send the generated compressed air into the auxiliary air tank 42. Thereby, the compressed air in the auxiliary | assistant air tank 42 can be supplied to the filth processing apparatus 10, and the filth processing apparatus 10 can be operated. Hereinafter, a configuration for supplying the compressed air in the auxiliary air tank 42 to the waste disposal apparatus 10 will be described.

  In the air circuit KK, an auxiliary pipe 130 and a three-way valve 131 and an auxiliary pipe 140 and a three-way valve 141 are newly provided in comparison with the conventional air circuit. One end 130a of the auxiliary pipe 130 is connected to the coupler 120, and the other end 130b of the auxiliary pipe 130 is connected in the middle of the branch pipe 110c.

  The three-way valve 131 is provided at the other end 130 b of the auxiliary pipe 130. Therefore, by manually turning the three-way valve 131, the compressed air in the auxiliary air tank 42 is sent to the main pipe 110a through the branch pipe 110c, and the compressed air in the auxiliary air tank 42 is part of the branch pipe 110c. It is possible to switch the state of being fed into the auxiliary pipe 130 through the pipe. The three-way valve 131 is arranged not in the floor but in the vehicle so that it can be easily operated.

  One end 140a of the auxiliary pipe 140 is connected to the coupler 120, and the other end 140b of the auxiliary pipe 140 is connected in the middle of the branch pipe 110d. The compressed air flowing through the auxiliary pipes 130 and 140 can come and go through the connector 120.

  The three-way valve 141 is provided at the other end 140 b of the auxiliary pipe 140. For this reason, by manually operating the three-way valve 141, the compressed air in the auxiliary pipe 140 is sent to the waste disposal apparatus 10 through a part of the branch pipe 110d, and the compressed air in the main pipe 110b is branched. The state of being sent to the waste disposal apparatus 10 through the pipe 110d can be switched. The three-way valve 141 is arranged not in the floor but in the vehicle so that it can be easily operated.

  These three-way valves 131 and 141 correspond to the “air passage switching means” of the present invention. Further, the main pipes 110a and 110b and the branch pipe 110d correspond to the “normal air passage” of the present invention. Further, a part of the branch pipe 110c, the auxiliary pipes 130 and 140, and a part of the branch pipe 110d correspond to the “auxiliary air passage” of the present invention.

  Here, as shown in FIG. 9, the pressure switch 63 (see FIG. 4) described in the electric circuit DK is provided in the auxiliary pipe 140 so that the air pressure of the compressed air in the auxiliary pipe 140 can be detected. The pressure switch 63 closes the contact only when it is detected that the compressed air sent from the auxiliary pipe 140 to the waste disposal apparatus 10 has insufficient air pressure. For this reason, the compressed air generated by the auxiliary electric air compressor 40 is sent to the waste disposal apparatus 10 in a situation where the waste disposal apparatus 10 requires compressed air.

  In other words, when the air pressure of the compressed air sent from the auxiliary pipe 140 to the waste disposal apparatus 10 is sufficient, the contact of the pressure switch 63 is opened. Thereby, since the coil 80c of the relay 80 is not energized and demagnetized, the contact 80b is opened while the contact 80a is closed (see FIG. 4). Therefore, electric power is not supplied from the backup battery 50 to the auxiliary electric air compressor 40 (auxiliary electric air compressor 43), and it is possible to prevent unnecessary generation of compressed air.

  Next, operation | movement of the air circuit KK of this embodiment is demonstrated using FIG.10 and FIG.11. In FIG.10 and FIG.11, the piping through which compressed air flows is shown by the thick line.

<Normal time>
FIG. 10 is a diagram showing a state in which compressed air flows in the air circuit KK at the normal time. As shown in FIG. 10, normally, the compressed air in the auxiliary air tank 42 is sent to the main pipe 110a through the branch pipe 110c. The compressed air flowing through the main pipe 110b is sent to the waste disposal apparatus 10 through the branch pipe 110d. In this way, the waste disposal apparatus 10 can operate during normal times. The compressed air flowing through the main pipes 110a and 110b is also sent to the brake control device, the side sliding door device, and the vehicle body tilting device.

<During power failure>
FIG. 11 is a diagram illustrating a state in which compressed air flows in the air circuit KK during a power failure. At the time of a power failure, as described above, the auxiliary electric air compressor 43 generates a large amount of compressed air by supplying power from the backup battery 50 (see FIG. 6). As a result, the auxiliary air tank 42 can supply a large amount of compressed air even during a power failure.

  Therefore, the three-way valve 131 and the three-way valve 141 are manually switched during a power failure. Thereby, the compressed air in the auxiliary air tank 42 is sent to the waste disposal apparatus 10 through a part of the branch pipe 110c, the auxiliary pipes 130 and 140, and a part of the branch pipe 110d. For this reason, even at the time of a power failure, the waste disposal apparatus 10 can operate without using the compressed air flowing through the main pipes 110a and 110b.

<Operational effects of this embodiment>
According to the present embodiment, when the power source switch 62 is pressed during a power failure, the power source switching circuit 60 is connected to the normal power source 20 and the waste disposal apparatus 10 as shown in FIG. The electrical connection state between 30 and the auxiliary electric air compressor 40 is cut off. At the same time, the power supply switching circuit 60 ensures the electrical connection state between the backup battery 50 and the waste disposal apparatus 10 and the electrical connection state between the backup battery 50 and the auxiliary electric air compressor 40. For this reason, at the time of a power failure, the electric power of the backup battery 50 can be supplied to the waste disposal apparatus 10 and the auxiliary electric air compressor 40. Therefore, the waste disposal apparatus 10 can operate electrically, and the auxiliary electric air compressor 40 can generate a large amount of compressed air.

  Further, as shown in FIG. 11, when the three-way valves 131 and 141 are manually turned during a power failure, the compressed air is supplied from the state where the compressed air is supplied to the waste disposal apparatus 10 through the main pipes 110a and 110b and the branch pipe 110d. The state is switched to a state where air is supplied to the waste disposal apparatus 10 through a part of the branch pipe 110c, the auxiliary pipes 130 and 140, and a part of the branch pipe 110d. For this reason, at the time of a power failure, the compressed air which the auxiliary | assistant electric air compressor 40 produced | generated in large quantities can be sent into the filth-treatment apparatus 10. FIG. Therefore, even during a power failure, power and compressed air can be supplied to the waste disposal apparatus 10 and can be reliably operated.

  Specifically, in the waste disposal apparatus 10, as shown in FIG. 1, excreta in the transfer tank 11 b can flow to the waste tank 13 by compressed air supplied at the time of a power failure. Further, the hose valve 16 and the like can be appropriately opened and closed by the power supplied at the time of a power failure, and the odor in the filth tank 13 can be prevented from leaking into the vehicle through the sewage pipe 15 and the urinal 12. . In this way, the waste disposal apparatus 10 can be appropriately operated even during a power failure, and passenger service in the event of an emergency can be improved.

  Further, according to the present embodiment, the existing auxiliary electric air compressor 40 is used as a device for sending compressed air to the waste disposal apparatus 10. For this reason, it is not necessary to install a new electric air compressor, and the existing equipment is used, so that the system is excellent in terms of space and cost.

  Further, according to the present embodiment, when power is restored from the time of a power failure, the waste disposal apparatus 10 from the power supply from the backup battery 50 by the relay 90 as shown in FIG. 4 from the state shown in FIG. It is possible to automatically switch to power supply from the normal power supply 20. At the same time, the auxiliary electric air compressor 40 can automatically switch from power supply from the backup battery 50 to power supply from the main battery 30.

  Further, according to the present embodiment, as shown in FIG. 4, since the charger 100 is provided, the power of the normal power supply 20 is supplied to the backup battery 50 and the backup battery 50 can be charged at normal times. For this reason, at the time of a power failure, the fully charged power of the backup battery 50 can be supplied to the waste disposal apparatus 10 and the auxiliary electric air compressor 40.

  Further, according to the present embodiment, as shown in FIG. 6, the backup battery 50 and the auxiliary electric air compressor 40, only when the pressure switch 63 detects a lack of air pressure of the compressed air sent to the waste disposal apparatus 10. The electrical connection state is ensured. Therefore, at this time, power is supplied from the backup battery 50 to the auxiliary electric air compressor 40, and the auxiliary electric air compressor 40 may generate compressed air in a situation where the waste disposal apparatus 10 requires compressed air. it can. Conversely, when the air pressure of the compressed air sent to the waste disposal apparatus 10 is sufficient, the electrical connection state between the backup battery 50 and the auxiliary electric air compressor 40 is cut off. For this reason, at this time, electric power is not supplied from the backup battery 50 to the auxiliary electric air compressor 40, and it is possible to prevent unnecessary generation of compressed air.

As mentioned above, although embodiment of the backup system of the railway vehicle waste disposal apparatus which concerns on this invention was described, this invention is not limited to this, A various change is possible in the range which does not deviate from the meaning.
For example, in the present embodiment, the existing auxiliary electric air compressor 40 is used to send the compressed air to the waste disposal apparatus 10, but a newly installed electric air compressor may be used.
In the electric circuit DK of the present embodiment, when configuring the “power supply switching circuit” of the present invention, the number and arrangement of relays and switches can be changed as appropriate.
In the air circuit KK of the present embodiment, when configuring the “normal air passage”, “auxiliary air passage”, and “air passage switching means” of the present invention, the number and arrangement of pipes and three-way valves can be appropriately changed. is there.

DESCRIPTION OF SYMBOLS 10 Waste disposal apparatus 20 Normal power supply 30 Main battery 40 Auxiliary electric air compressor 42 Auxiliary air tank 43 Auxiliary electric air compressor 50 Backup battery 60 Power supply switching circuit 62 Power supply switch 63 Pressure switch 65 Reset switch 70, 80, 90 Relay 100 Charging 110, 110a, 110b Main piping 110c, 110d Branch piping 130, 140 Auxiliary piping 131, 141 Three-way valve

Claims (5)

A waste disposal apparatus installed in a railway vehicle and operated by electric power and compressed air;
An electric air compressor that generates compressed air when driven by electric power;
A normal power source capable of supplying power to the waste disposal apparatus;
A main battery capable of supplying power to the electric air compressor;
In a backup system for a railway vehicle waste disposal apparatus comprising a normal air passage for sending compressed air to the waste disposal apparatus,
A backup battery to supply power during a power outage,
The electrical connection state between the normal power source and the waste disposal device during a power failure, and the electrical connection state between the main battery and the electric air compressor are interrupted, and the backup battery and the waste disposal device A power supply switching circuit for ensuring an electrical connection state and an electrical connection state between the backup battery and the electric air compressor;
An auxiliary air passage for sending compressed air from the electric air compressor to the waste disposal device;
An air passage switching means for shutting off the air supply state of the normal air passage at the time of a power failure and ensuring the air supply state of the auxiliary air passage;
A backup system for a railway vehicle waste disposal apparatus. In the backup system for a railway vehicle waste disposal apparatus according to claim 1,
The electric air compressor is an auxiliary electric air compressor including an auxiliary air tank that stores compressed air for moving a pantograph, and an auxiliary electric air compressor that feeds the compressed air generated in the auxiliary air tank. A backup system for railway vehicle waste disposal equipment. In the backup system of the railway vehicle waste disposal apparatus according to claim 1 or 2,
The power switching circuit ensures an electrical connection state between the normal power source and the waste disposal device and an electrical connection state between the main battery and the electric air compressor when power is restored from a power failure. And a railroad vehicle having a power failure detection relay that cuts off an electrical connection state between the backup battery and the waste disposal device and an electrical connection state between the backup battery and the electric air compressor. System for industrial waste disposal equipment. In the backup system for a railway vehicle waste disposal apparatus according to any one of claims 1 to 3,
The normal power source and the backup battery are connected by a charging circuit,
The backup system for a railway vehicle waste disposal apparatus, wherein the charging circuit is provided with a charger capable of charging the backup battery by supplying electric power from the normal power source to the backup battery. In the backup system for a railway vehicle waste disposal apparatus according to any one of claims 1 to 4,
The auxiliary air passage is provided with a pressure switch for detecting whether or not the compressed air pressure sent to the waste disposal apparatus is insufficient,
The railroad vehicle filth treatment, wherein the power supply switching circuit ensures an electrical connection state between the backup battery and the electric air compressor only when the pressure switch detects that the air pressure is insufficient. Device backup system.

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