WO2016194584A1 - Circuit à courant continu (cc), dispositif d'alimentation cc, corps mobile et système d'alimentation électrique - Google Patents

Circuit à courant continu (cc), dispositif d'alimentation cc, corps mobile et système d'alimentation électrique Download PDF

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Publication number
WO2016194584A1
WO2016194584A1 PCT/JP2016/064358 JP2016064358W WO2016194584A1 WO 2016194584 A1 WO2016194584 A1 WO 2016194584A1 JP 2016064358 W JP2016064358 W JP 2016064358W WO 2016194584 A1 WO2016194584 A1 WO 2016194584A1
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Prior art keywords
circuit
current
current path
relay
direct current
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PCT/JP2016/064358
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English (en)
Japanese (ja)
Inventor
直 森田
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ソニー株式会社
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Priority to JP2017521773A priority Critical patent/JP6677250B2/ja
Publication of WO2016194584A1 publication Critical patent/WO2016194584A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/001—Hot plugging or unplugging of load or power modules to or from power distribution networks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/46—Circuit arrangements not adapted to a particular application of the protective device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle

Definitions

  • the present disclosure relates to a DC circuit, a DC power supply device, a moving body, and a power supply system.
  • the generation of arc discharge is suppressed with a small-scale configuration when the DC power is cut off without reducing the power efficiency when supplying DC power, and the semiconductor switch is used when the semiconductor switch is used to suppress arc discharge.
  • a new and improved DC circuit, DC power supply device, moving body, and power supply system that can ensure safety even when a short circuit occurs due to deterioration of the switch are proposed.
  • a first current path and a second current path provided in parallel in a path through which a direct current flows and a semiconductor switch provided on the first current path are used in the second current path.
  • the fuse is provided with a DC circuit having a rating that does not melt at the rated energization time and rated energization current of the circuit.
  • a DC power source that supplies DC power, a first current path and a second current path that are provided in parallel in a path through which the DC flows, and a semiconductor switch that is provided on the first current path And a circuit that suppresses the generation of an arc when a direct current is interrupted in the second current path using at least a fuse on the first current path, and the second current when the fuse is blown
  • a direct current power supply device is provided in which the supply of direct current through a path is stopped and the fuse has a rating that does not blow at the rated energization time and rated energization current of the circuit.
  • Patent Documents 1 and 2 In the case of direct current power supply, there are other Patent Documents 1 and 2 as other techniques for suppressing the occurrence of arc discharge when power is cut off.
  • Patent Document 1 discloses a technique for suppressing the occurrence of arc discharge by providing a switching element on a path through which a current flows during DC power supply and turning off the switching element when the plug is removed from the plug receptacle. Yes.
  • Patent Document 2 also suppresses the occurrence of arc discharge by providing an arc absorption circuit including a switching element on a path through which a current flows during DC power supply, and turning off the switching element when the plug is removed from the plug receptacle.
  • the technology is disclosed.
  • the present disclosure has intensively studied a technology that can suppress the occurrence of arc discharge with a small-scale configuration when cutting off DC power without reducing the power efficiency when supplying DC power. went.
  • the present disclosure provides two contacts on the positive electrode, and suppresses the voltage generated between the electrodes when the DC power is cut off when switching the contact with the power receiving electrode.
  • the inventors have devised a technique that can suppress the occurrence of arc discharge with a small-scale configuration when the DC power is cut without reducing the power efficiency when supplying DC power.
  • the present disclosure has intensively studied a technology capable of ensuring safety even when a short circuit occurs due to deterioration of the semiconductor switch when the semiconductor switch is used for suppressing arc discharge.
  • the present disclosure has devised a technique that can ensure safety even when a short circuit occurs due to deterioration of the semiconductor switch when the semiconductor switch is used to suppress arc discharge. It was.
  • FIG. 1 is an explanatory diagram illustrating a configuration example of a DC power supply device including a DC circuit according to an embodiment of the present disclosure.
  • FIG. 1 shows a configuration example of a DC power supply apparatus for supplying DC power supplied from a DC power source to a load.
  • a configuration example of a DC power supply device according to an embodiment of the present disclosure will be described with reference to FIG.
  • the DC power supply apparatus shown in FIG. 1 supplies DC power supplied from a DC power supply 200 to the load 10.
  • the DC power source 200 outputs DC power having a predetermined voltage Vs.
  • the DC power supply apparatus shown in FIG. 1 includes a DC circuit 100 between the positive electrode side of the DC power supply 200 and the load 10.
  • the DC circuit 100 has a configuration that suppresses the occurrence of arc discharge when the DC current from the DC power supply 200 is interrupted.
  • the DC circuit 100 includes a MOSFET T1, a capacitor C1, a resistor R1, a diode D1, a switch SW1, and an alarm fuse 110.
  • the DC circuit 100 allows a current to flow through the main system and the sub system that are parallel in the path through which the DC flows.
  • a system in which the switch SW1 is provided is a main system, and a system in which the MOSFET T1 is provided is a sub system.
  • the MOSFET T1 uses an n-type MOSFET (Metal Oxide Semiconductor Field Effect Transistor) in the present embodiment.
  • the capacitor C1 is provided between the drain terminal and the gate terminal of the MOSFET T1.
  • the resistor R1 is provided between the gate terminal and the source terminal of the MOSFET T1.
  • the capacitor C1 and the resistor R1 are connected in series.
  • the circuit composed of the MOSFET T1, the capacitor C1, the resistor R1, and the diode D1 is a circuit provided for suppressing the current flowing from the DC power supply 200 to the load 10 when the switch SW1 is switched from the on state to the off state.
  • the MOSFET T1 When the switch SW1 is in the OFF state, the MOSFET T1 is also in the OFF state, so that no current flows from the DC power supply 200 to the load 10. After that, when the switch SW1 is operated and the switch SW1 is turned on, a current flows from the DC power source 200 to the load 10. In this state, the MOSFET T1 is continuously turned off. Current does not flow.
  • the MOSFET T1 is turned on, and a current flows in the direction of decreasing the voltage across the switch SW1 from the DC power supply 200 toward the load 10, whereby the voltage across the switch SW1 is reduced. By reducing the voltage across the switch SW1, the switch SW1 does not cause arc discharge even when the switch SW1 is turned off.
  • the voltage between the drain terminal and the source terminal of MOSFET T1 falls within the voltage along the transfer function of the FET gate voltage.
  • the switch SW1 is turned off and the capacitor C1 is charged by the voltage generated at both ends of the switch SW1
  • the gate voltage of the MOSFET T1 is lowered, and the MOSFET T1 is turned off so that a current flows through the MOSFET T1. Disappear.
  • the diode D1 connected in parallel with the resistor R1 of the DC circuit 100 is used for discharging the charge accumulated in the capacitor C1 in a short time without going through the resistor R1 when the switch SW1 shifts from the off state to the on state. Provided.
  • the diode D1 is provided in parallel with the resistor R1, so that the voltage integration function of the DC circuit 100 can be restored in a short time even if the connection of the switch SW1 causes chattering or the like.
  • the resistor R1 supplies a voltage to the gate terminal of the MOSFET T1, and the voltage supply time is determined by the product relationship between the capacitance of the capacitor C1 and the resistance value of the resistor R1.
  • the alarm fuse 110 is provided with a mechanism for preventing re-energization in the main system provided with the switch SW1 while the fuse portion is blown when an excessive current flows in the sub system provided with the MOSFET T1. It is a fuse. Although a specific configuration example of the alarm fuse 110 will be described later, the alarm fuse 110 includes a mechanism that prevents re-energization in the main system using, for example, elastic force when the fuse is blown.
  • the rated energization time of the alarm fuse 110 (the time until it blows) after the switch SW1 is switched from the on state to the off state and the MOSFET T1 is turned on. ) If the MOSFET T1 is turned off in a shorter time, the alarm fuse 110 will not be blown.
  • FIG. 2 is an explanatory diagram showing a state where the alarm fuse 110 in the DC circuit 100 is blown.
  • the switch portion of the alarm fuse 110 When the alarm fuse 110 is blown, the switch portion of the alarm fuse 110 is turned off in the main system provided with the switch SW1. When the switch portion of the alarm fuse 110 is turned off, DC power is not supplied from the DC power supply 200 to the load even if the switch SW1 is turned on. Therefore, when an abnormal state occurs, the DC circuit 100 according to an embodiment of the present disclosure can prevent re-energization due to the operation of the switch SW1 and can fail in a safe direction.
  • FIG. 3 is an explanatory diagram showing the time change of the current flowing through the alarm fuse 110 in a graph.
  • FIG. 3 shows a time change of the current I1 flowing through the alarm fuse 110 when the DC circuit 100 is normal, and a time change of the current I2 flowing through the alarm fuse 110 when the DC circuit 100 is abnormal. ing.
  • the current I1 decreases in a time shorter than the rated energization time (time until fusing) of the alarm fuse 110. Therefore, the alarm fuse 110 is not blown when the DC circuit 100 is normal. However, when the DC circuit 100 is in an abnormal state, the MOSFET T1 is not turned off and the current continues to flow. When a current exceeding the rated current exceeds the rated current, the alarm fuse 110 is finally blown. The current I2 decreases.
  • the DC circuit 100 uses the fact that the alarm fuse 110 is not blown if the current exceeds the rated current even if a current exceeding the rated current flows, so that the switch SW1 is switched even if the switch SW1 is switched from the on state to the off state. The occurrence of arc discharge can be suppressed. Further, the DC circuit 100 suppresses re-energization in the main system and the sub system from the DC power supply 200 by melting the alarm fuse 110 fuse portion when the MOSFET T1 is not in a normal state due to failure or the like. Can do.
  • FIG. 4 is an explanatory diagram illustrating another configuration example of the DC power supply device according to the embodiment of the present disclosure.
  • FIG. 4 shows a configuration example of a DC power supply device for supplying DC power to a device having a plug inserted in a plug receptacle.
  • the DC power supply apparatus shown in FIG. 4 is an apparatus including a DC circuit 100 that suppresses the occurrence of arc discharge between the plug receiver 20 and the plug 11 when the plug is removed from the plug receiver.
  • a DC power supply for supplying DC power may be provided as in FIGS.
  • the voltage generated between the contact 20a and the contact 20b induces the gate voltage of the MOSFET T1 through the capacitor C1, and turns on the MOSFET T1.
  • a current flows in a direction to decrease the voltage between the contact 20a and the contact 20b.
  • the MOSFET T1 is turned on, and a current flows in a direction to decrease the voltage between the contact 20a and the contact 20b, whereby the potential difference between the positive terminal 11a and the contact 20a is reduced.
  • the voltage between the drain terminal and the source terminal of MOSFET T1 falls within the voltage along the transfer function of the FET gate voltage.
  • the capacitor C1 is charged by the voltage generated between the contact 20a and the contact 20b after the positive terminal 11a is separated from the contact 20a, the gate voltage of the MOSFET T1 decreases and the MOSFET T1 is turned off. The current stops flowing through the MOSFET T1.
  • the diode D1 connected in parallel to the resistor R1 of the DC circuit 100 has the positive-side terminal 11a in contact with both the contact 20a and the contact 20b, and the contact 20a and the contact 20b are short-circuited. It is provided to discharge the charge accumulated in the capacitor C1 without passing through the resistor R1 in a short time.
  • the diode D1 is provided in parallel with the resistor R1, for example, even if the connection between the contact 20a and the contact 20b causes chattering, the voltage integration function of the DC circuit 100 can be achieved in a short time. I am trying to return.
  • the resistor R1 supplies a voltage to the gate terminal of the MOSFET T1, and the voltage supply time is determined by the product relationship between the capacitance of the capacitor C1 and the resistance value of the resistor R1.
  • FIG. 5 is an explanatory diagram illustrating another configuration example of the DC power supply device according to an embodiment of the present disclosure.
  • FIG. 5 shows an example of the configuration of a DC power supply device intended to supply DC power supplied from a DC power source to a load.
  • the DC power supply device shown in FIG. 5 uses a relay 30 for switching between supply and interruption of DC power.
  • the relay 30 switches a switch according to an electromagnetic force generated by a current from a power source (not shown).
  • a DC power supply for supplying DC power may be provided as in FIGS.
  • the DC power supply device is provided with the DC circuit 100 and an abnormal state occurs.
  • FIG. 6 is an explanatory diagram showing an example of the fusing characteristics of the fuse in a graph.
  • the fuse does not melt even when a larger amount of current flows than the rated current when it is energized for a short time.
  • a 10A fuse blows when a current of 12A or more continues to flow in normal use, but as shown in FIG.
  • FIG. 7 is an explanatory view showing a structural example of the alarm fuse 110.
  • the alarm fuse 110 includes a fuse 111, a holding wire 112, an obstruction mechanism 113, an alarm contact 114, and a spring 115.
  • FIG. 7 shows a state where the fuse 111 is not blown.
  • E1 and E2 shown in FIG. 7 are conductors that flow current to the main system in the DC circuit 100, and F1 and F2 are conductors that flow current to the sub-system in the DC circuit 100.
  • the alarm fuse 110 can pass a current through the main system.
  • FIG. 8 is an explanatory view showing a state where the fuse 111 of the alarm fuse 110 shown in FIG. 7 is blown.
  • the tension of the holding wire 112 is lost, the alarm contact 114 is dissociated from the conductor E2 by the force of the spring 115, and the conductors E1 and E2 are not connected. Therefore, in the state where the fuse 111 is blown, the alarm fuse 110 can be prevented from flowing current to the main system.
  • the obstruction mechanism 113 pops out from the alarm fuse 110 as shown in FIG.
  • the obstruction mechanism 113 obstructs the lowering of the slide bar 121 associated with the switch SW1. Therefore, when the fuse 111 is blown, the alarm fuse 110 can not only prevent the current from flowing through the main system, but can also lock the switch SW1 in the off state.
  • the DC circuit 100 shown so far has a configuration in which a MOSFET and a capacitor are combined in order to suppress the occurrence of arc discharge.
  • the configuration for suppressing the occurrence of arc discharge is not limited to such an example.
  • an alarm fuse is provided in a DC circuit having a configuration in which a mechanical relay is connected in parallel to a solid state relay (SSR, semiconductor relay) in order to suppress the occurrence of arc discharge.
  • SSR solid state relay
  • FIG. 9 is an explanatory diagram illustrating another configuration example of the DC circuit according to an embodiment of the present disclosure.
  • FIG. 9 shows a DC circuit 100 for combining a solid state relay (SSR, semiconductor relay) with a mechanical relay and switching between supply and interruption of DC power by turning on and off the mechanical relay. This is an example of the configuration.
  • SSR solid state relay
  • the DC circuit 100 shown in FIG. 9 includes an SSR 130, a mechanical relay RY1, diodes D11, D12, and D13, capacitors C11 and C12, and a resistor R11.
  • the DC circuit 100 allows a current to flow through the main system and the sub system that are parallel in the path through which the DC flows.
  • a system in which the SSR 130 is provided is a main system, and a system in which the mechanical relay RY1 is provided is a sub system.
  • the mechanical relay RY1 operates so as to switch contacts using an electromagnetic force generated by a current flowing from the terminal V + to the terminal V ⁇ .
  • the mechanical relay RY1 is connected to the contact 1b when no current flows from the terminal V + to the terminal V-, and is connected to the contact 1a using electromagnetic force when the current flows from the terminal V + to the terminal V-.
  • a DC power supply for supplying DC power to the terminal V + may be provided as in FIGS.
  • the SSR 130 is provided on the power supply path from the terminal A to the terminal B.
  • the SSR 130 is configured to be turned on when a high voltage is applied to the control terminal, and to be turned off when a low voltage is applied to the control terminal.
  • the mechanical relay RY1 gradually generates an electromagnetic force.
  • the electromagnetic force generated by the mechanical relay RY1 reaches a certain level, the mechanical relay RY1 releases the connection with the contact 1b.
  • the mechanical relay RY1 When the electromagnetic force further increases, the mechanical relay RY1 is connected to the contact 1a, but chattering occurs when connecting to the contact 1a.
  • a voltage is applied to the terminal V +, the voltage is applied to the control terminal of the SSR 130, and the SSR 130 is turned on.
  • a current flows from the terminal V + to the terminal V ⁇ , charge is accumulated in the capacitor C1 through the diode D1.
  • the mechanical relay RY1 gradually reduces the electromagnetic force.
  • the mechanical relay RY1 releases the connection with the contact 1a.
  • the mechanical relay RY1 is connected to the contact 1b, but chattering occurs at the time of connection with the contact 1b.
  • the capacitor C11 can store enough power to turn on the SSR 130 until the mechanical relay RY1 is connected to the contact 1b. At this time, the diode D12 is released from the reverse bias and becomes conductive, and the capacitor C12 operates through the coil of the mechanical relay RY1.
  • the capacitor C12 absorbs chattering when the mechanical relay RY1 is connected to the contact 1b.
  • the capacitor C12 forms a discharge circuit for the capacitor C11 through the diode D13 and absorbs the surge of the mechanical relay RY1.
  • the DC circuit 100 shown in FIG. 9 no current flows from the terminal V + to the terminal V ⁇ , and even if the mechanical relay RY1 is disconnected from the contact 1a, the generation of arc can be suppressed and the surge can be absorbed. I can do it.
  • the DC circuit 100 shown in FIG. 9 has four terminals and can be connected in the same manner as a general relay, so that it can be used in place of an existing relay.
  • the 9 includes an alarm fuse 110.
  • the DC circuit 100 shown in FIG. When the semiconductor switch of the SSR 130 breaks down and does not normally shift to the off state, the alarm fuse 110 is eventually blown by the current flowing from the terminal A. When the alarm fuse 110 blows, the switch of the alarm fuse 110 on the path on the contact 1a side of the mechanical relay RY1 is turned off.
  • the DC circuit 100 shown in FIG. 9 can suppress re-energization by the mechanical relay RY1 even if the semiconductor switch of the SSR 130 fails and does not normally shift to the OFF state.
  • FIG. 10 is an explanatory diagram illustrating another configuration example of the DC circuit according to an embodiment of the present disclosure.
  • FIG. 10 shows an example of the configuration of a DC circuit 100 for combining the SSR with a mechanical relay and switching the supply and interruption of DC power by turning the mechanical relay on and off.
  • a DC power supply for supplying DC power to the terminal V + may be provided as in FIGS.
  • the DC circuit 100 shown in FIG. 10 includes an alarm fuse 110 similar to the DC circuit 100 shown in FIG. 9, but the alarm fuse 110 in FIG. 10 is normally turned off due to a failure of the semiconductor switch of the SSR 130. When it does not shift to, the switch provided on the path from the terminal V + to the terminal V ⁇ is turned off. Therefore, the DC circuit 100 shown in FIG. 10 can suppress re-energization by the mechanical relay RY1 even if the semiconductor switch of the SSR 130 fails and does not normally shift to the OFF state.
  • the mechanical relay RY1 does not operate.
  • the DC circuit 100 shown in FIG. 10 can be expected to have an effect of making it easier to find a failure because the mechanical relay RY1 does not operate when an abnormality occurs.
  • FIG. 11 is an explanatory diagram illustrating another configuration example of the DC circuit according to an embodiment of the present disclosure.
  • FIG. 11 shows an example of the configuration of a DC circuit 100 for combining the SSR with a mechanical relay and switching the supply and interruption of DC power by turning the mechanical relay on and off.
  • a DC power supply for supplying DC power to the terminal A may be provided as in FIGS.
  • FIG. 11 shows a DC circuit 100 having a configuration in which a fuse 110 ′ is disposed between the terminal A and the SSR 130, and a power source for driving the mechanical relay RY1 is supplied from between the fuse 110 ′ and the SSR 130. is there.
  • the DC circuit 100 shown in FIG. 11 when the semiconductor switch of the SSR 130 breaks down and does not normally shift to the OFF state, the fuse 110 'is blown out due to the current flowing from the terminal A. When the fuse 110 'is blown, no current flows to the mechanical relay RY1, and the mechanical relay RY1 does not operate.
  • the DC circuit 100 shown in FIG. 11 can be expected to have an effect of making it easier to find a failure because the mechanical relay RY1 does not operate when an abnormality occurs.
  • FIG. 12 is an explanatory diagram showing an example of the time change of the current flowing through the fuse in the DC circuit 100 shown in FIGS.
  • FIG. 12 shows the time change of the current I3 flowing through the fuse when the DC circuit 100 is normal and the time change of the current I4 flowing through the fuse 110 when the DC circuit 100 is abnormal.
  • FIG. 13 is an explanatory diagram illustrating a functional configuration example of the moving body 40 including the DC circuit 100.
  • the moving body 40 may be, for example, a moving body that uses gasoline as a power source, such as a gasoline car, and uses a chargeable / dischargeable battery as a main power source, such as an electric vehicle, a hybrid vehicle, and an electric motorcycle. It may be a body.
  • FIG. 13 shows an example in which the moving body 40 includes a battery 210 and a driving unit 220 that is driven by electric power supplied from the battery.
  • the drive unit 220 may include, for example, equipment provided in the vehicle such as a wiper, a power window, a light, a car navigation system, and an air conditioner, and a device that drives the moving body 40 such as a motor.
  • the moving body 40 shown in FIG. 13 is provided with the DC circuit 100 on a path through which DC power is supplied from the battery 210 to the drive unit 220, so that, for example, arc discharge occurs when the battery 210 is temporarily attached or detached. Can be suppressed.
  • FIG. 13 shows an example of the moving body 40 provided with only one DC circuit 100, but the present disclosure is not limited to such an example. That is, a plurality of DC circuits 100 may be provided in the middle of a path through which DC power is supplied. Further, the DC circuit 100 may be provided not only in the middle of a path in which DC power is supplied from the battery 210 to the drive unit 220 but also in another place, for example, in the middle of a path when charging the battery 210 with DC power. . The moving body 40 can safely charge the battery 210 with DC power by providing the DC circuit 100 in the middle of the path when charging the battery 210 with DC power.
  • the DC circuit 100 uses a semiconductor switch to suppress the occurrence of arc discharge when the DC power is cut off, but blows when the semiconductor switch fails and does not operate normally.
  • a fuse having a mechanism for suppressing re-energization is provided.
  • the DC circuit 100 according to the embodiment of the present disclosure and the DC power supply device including the DC circuit 100 can be used when the semiconductor switch is deteriorated when the semiconductor switch is used to suppress arc discharge. It is possible to ensure safety even if a short circuit occurs due to.
  • the first current path includes at least a fuse, When the fuse is blown, the supply of direct current through the second current path is stopped,
  • the fuse is a DC circuit having a rating that is not blown by a rated energization time and a rated energization current of the circuit.
  • the DC circuit according to (1) On the second current path, a mechanical switch that switches between supply and cut-off of direct current through the second current path, The DC circuit according to (1), further including a suppression mechanism that suppresses supply of DC power by the mechanical switch when the fuse is blown. (3) The DC circuit according to (1) or (2), wherein the circuit is a circuit that suppresses an amount of direct current flowing through the first current path.
  • the circuit is A switching element that is provided on the first current path and that is turned on when direct current is no longer supplied in the second current path and reduces a current flowing to the source side; Capacitance element that starts charging when DC is no longer supplied through the first current path and increases the gate voltage of the switching element after DC is no longer supplied through the second current path; A resistive element for setting a time for applying a voltage to the gate terminal of the switching element together with the capacitive element;
  • the DC circuit according to (3) comprising: (5)
  • the circuit is A semiconductor relay which is provided on the first current path and which switches between supply and interruption of a direct current from a direct current power supply; A mechanical relay provided on the second current path and connected in parallel with the semiconductor relay to switch supply and interruption of a direct current from the direct current power source; With The DC output circuit according to (1), which is a circuit that suppresses chattering of the mechanical relay when DC is cut off by the mechanical relay.
  • the circuit further includes a capacitor connected in parallel with the mechanical relay and connected at one end to a control terminal of the semiconductor relay,
  • the semiconductor relay is turned on when a high voltage is applied to the control terminal before the mechanical relay is switched from the off state to the on state, and the mechanical relay is switched from the on state to the off state. After that, the low voltage is applied to the control terminal to turn off,
  • the capacitor stores electricity while the mechanical relay is in an on state, and outputs a current for maintaining the semiconductor relay in an on state after the mechanical relay is switched off. ) DC circuit.
  • a DC power supply for supplying DC power; A first current path and a second current path provided in parallel in a path through which direct current flows; A circuit that suppresses the occurrence of an arc when a direct current is interrupted in the second current path using a semiconductor switch provided on the first current path; With The first current path includes at least a fuse, When the fuse is blown, the supply of direct current through the second current path is stopped, The fuse is a direct-current power supply device having a rating that does not melt at a rated energization time and a rated energization current of the circuit.
  • the DC power supply device On the second current path, a mechanical switch that switches between supply and cut-off of direct current through the second current path, The DC power supply device according to (7), including a suppression mechanism that suppresses supply of DC power by the mechanical switch when the fuse is blown. (9) The DC power supply device according to (7) or (8), wherein the circuit is a circuit that suppresses an amount of direct current flowing through the first current path.
  • the circuit is A switching element that is provided on the first current path and that is turned on when direct current is no longer supplied in the second current path and reduces a current flowing to the source side; Capacitance element that starts charging when DC is no longer supplied through the first current path and increases the gate voltage of the switching element after DC is no longer supplied through the second current path; A resistive element for setting a time for applying a voltage to the gate terminal of the switching element together with the capacitive element;
  • the direct-current power supply device comprising: (11)
  • the circuit is A semiconductor relay which is provided on the first current path and which switches between supply and interruption of DC power; A mechanical relay provided on the second current path and connected in parallel with the semiconductor relay to switch power supply and interruption from the power source; With The DC power supply device according to (7), wherein the DC relay is a circuit that suppresses chattering of the mechanical relay when DC is cut off by the mechanical relay.
  • the circuit further includes a capacitor connected in parallel with the mechanical relay and connected at one end to a control terminal of the semiconductor relay,
  • the semiconductor relay is turned on when a high voltage is applied to the control terminal before the mechanical relay is switched from the off state to the on state, and the mechanical relay is switched from the on state to the off state. After that, the low voltage is applied to the control terminal to turn off,
  • the capacitor stores power while the mechanical relay is in an ON state, and outputs electric power for maintaining the semiconductor relay in an ON state after the mechanical relay is switched to an OFF state.
  • DC power supply device (13) A moving body comprising the DC circuit according to any one of (1) to (6).
  • a power supply system comprising:

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Keying Circuit Devices (AREA)
  • Relay Circuits (AREA)
  • Fuses (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

La présente invention a pour but de fournir un circuit à courant continu (CC) capable de garantir la sécurité même si un court-circuit devait se produire en raison de la détérioration temporelle d'un commutateur à semi-conducteur, lors de l'utilisation dudit commutateur à semi-conducteur pour supprimer l'amorçage d'arc. Pour atteindre ce but, la présente invention porte sur un circuit à courant continu (CC) comprenant : une première voie de passage de courant et une seconde voie de passage de courant, qui sont disposées en parallèle sur un trajet le long duquel un courant continu circule ; un circuit qui utilise un commutateur à semi-conducteur pour supprimer l'apparition d'arcs lorsque le courant continu dans la seconde voie de passage de courant est interrompu. La première voie de de passage de courant est pourvue d'au moins un fusible sur celle-ci. Si le fusible fond, l'alimentation en courant continu par l'intermédiaire de la seconde voie de passage de courant est arrêtée. Le fusible est nominal de telle sorte à ne pas fondre pendant le temps de conduction nominal et le courant de conduction nominal du circuit.
PCT/JP2016/064358 2015-06-04 2016-05-13 Circuit à courant continu (cc), dispositif d'alimentation cc, corps mobile et système d'alimentation électrique WO2016194584A1 (fr)

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TWI646747B (zh) * 2017-04-20 2019-01-01 碩天科技股份有限公司 Power output control module applied to the power distributor
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CN110301025B (zh) * 2017-02-13 2021-12-10 索尼公司 消弧装置
CN110301025A (zh) * 2017-02-13 2019-10-01 索尼公司 消弧装置
JP7010245B2 (ja) 2017-02-13 2022-01-26 ソニーグループ株式会社 アーク抑制装置
WO2018146942A1 (fr) * 2017-02-13 2018-08-16 ソニー株式会社 Dispositif de suppression d'arc
JPWO2018146942A1 (ja) * 2017-02-13 2019-12-12 ソニー株式会社 アーク抑制装置
TWI646747B (zh) * 2017-04-20 2019-01-01 碩天科技股份有限公司 Power output control module applied to the power distributor
JPWO2018198538A1 (ja) * 2017-04-26 2020-05-21 ソニー株式会社 アーク抑制装置、移動体及び電力供給システム
JP7226307B2 (ja) 2017-04-26 2023-02-21 ソニーグループ株式会社 アーク抑制装置、移動体及び電力供給システム
WO2018198538A1 (fr) * 2017-04-26 2018-11-01 ソニー株式会社 Dispositif de suppression d'arc, corps mobile et système d'alimentation électrique
US11189438B2 (en) 2017-04-26 2021-11-30 Sony Corporation Arc suppression device, mobile body, and power supply system
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CN111937111A (zh) * 2018-06-08 2020-11-13 菲尼克斯电气公司 具有监控装置的断路器及其方法
WO2020032592A1 (fr) * 2018-08-08 2020-02-13 주식회사 엘지화학 Dispositif de fusion
US11552378B2 (en) 2018-08-08 2023-01-10 Lg Energy Solution, Ltd. Fusing apparatus
JP2021022955A (ja) * 2019-07-24 2021-02-18 株式会社Ｇｓユアサ 蓄電素子の管理装置、及び、蓄電装置
WO2021014871A1 (fr) * 2019-07-24 2021-01-28 株式会社Ｇｓユアサ Dispositif de gestion d'élément de stockage d'énergie, dispositif de stockage d'énergie, et relais
KR20220030122A (ko) * 2020-09-02 2022-03-10 주식회사 액트로 이산화탄소 세정기 제어장치 및 제어방법
KR102480829B1 (ko) * 2020-09-02 2022-12-23 주식회사 액트로 이산화탄소 세정기 제어장치 및 제어방법

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