WO2016121140A1 - 電流制限回路、直流電力供給コネクタ及び直流電源装置 - Google Patents
電流制限回路、直流電力供給コネクタ及び直流電源装置 Download PDFInfo
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- WO2016121140A1 WO2016121140A1 PCT/JP2015/065071 JP2015065071W WO2016121140A1 WO 2016121140 A1 WO2016121140 A1 WO 2016121140A1 JP 2015065071 W JP2015065071 W JP 2015065071W WO 2016121140 A1 WO2016121140 A1 WO 2016121140A1
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- contact
- terminal
- power supply
- limiting circuit
- current limiting
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- 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
- H01H9/541—Contacts shunted by semiconductor devices
- H01H9/542—Contacts shunted by static switch means
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- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
- H02H9/025—Current limitation using field effect transistors
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- 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
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
- H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
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- 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
- H01H9/541—Contacts shunted by semiconductor devices
- H01H9/542—Contacts shunted by static switch means
- H01H2009/546—Contacts shunted by static switch means the static switching means being triggered by the voltage over the mechanical switch contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/20—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for electronic equipment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
Definitions
- the present disclosure relates to a current limiting circuit, a DC power supply connector, and a DC power supply device.
- a new and improved current limit circuit capable of suppressing the occurrence of arc discharge at the time of cutting off DC power with a small-scale configuration without reducing the power efficiency when supplying DC power, and DC power Proposed supply connector and DC power supply.
- the terminal on the power receiving side through which current flows when the DC power is supplied contacts the electrode.
- the contact between the second contact provided at the position and the terminal is released, the current flowing to the terminal through the second contact is reduced, and the terminal is in contact with the first contact Does not pass current and a current limiting circuit is provided that reduces the current flowing to the terminal through the second contact only when the terminal is in contact with the second contact.
- At least one of the positive electrode and the negative electrode that supply DC power is provided, and at least one of the positive electrode and the negative electrode is the first contact and the DC power is supplied.
- a current limiting circuit that reduces a current flowing to the terminal through two contacts, and the current limiting circuit does not pass a current when the terminal is in contact with the first contact, and the terminal
- a DC power supply connector is provided that reduces the current flowing through the second contact to the terminal only when in contact with the second contact.
- At least a DC power source that supplies DC power, and a positive electrode and a negative electrode that supply DC power from the DC power source, at least of the positive electrode or the negative electrode are provided.
- a current limiting circuit for reducing a current flowing to the terminal through the second contact before the contact with the second contact is released, wherein the current limiting circuit has the terminal as the first contact.
- a direct current power supply device that reduces the current flowing to the terminal through the second contact only when the terminal is in contact with the second contact only when the terminal is in contact with the second contact.
- a novel and improved configuration that can suppress the occurrence of arc discharge with a small-scale configuration at the time of cutting off DC power without reducing the power efficiency when supplying DC power.
- a current limiting circuit, a DC power supply connector, and a DC power supply device can be provided.
- FIG. 3 is an explanatory diagram illustrating a configuration example of a DC power supply device 100.
- FIG. 3 is an explanatory diagram illustrating a specific configuration example of a DC power supply device 100.
- FIG. FIG. 6 is an explanatory view showing a state where the plug 11 is inserted into the plug receiver 20. It is explanatory drawing which shows the state from which the plug 11 is extracted from the plug receptacle 20.
- FIG. 3 is an explanatory diagram schematically showing a state in which a plug 11 is inserted into a DC power supply device 100.
- FIG. 4 is an explanatory diagram showing a voltage change of a voltage V1 across the current limiting circuit 30 and a voltage change of a voltage V2 applied to a load 10 depending on the relationship with the insertion position of a plug 11.
- FIG. 10 is an explanatory diagram showing a modification of the DC power supply device 100.
- FIG. 10 is an explanatory diagram showing a modification of the DC power supply device 100.
- FIG. 6 is an explanatory diagram showing a configuration example when a plurality of plug receivers 20 are present in the DC power supply device 100. It is explanatory drawing which shows the structural example in the case of connecting two DC power supply devices 100a and 100b. It is explanatory drawing which shows the structural example of the DC power supply device 100 which concerns on one Embodiment of this indication.
- FIG. 4 is an explanatory diagram showing a voltage change of a voltage V1 across the current limiting circuit 30 and a voltage change of a voltage V2 applied to a load 10 depending on the relationship with the insertion position of a plug 11. It is explanatory drawing which shows the function structural example of the electric drive body provided with the current limiting circuit 30 which concerns on one Embodiment of this indication.
- 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.
- FIG. 1 is an explanatory diagram illustrating a configuration example of a DC power supply system according to an embodiment of the present disclosure.
- FIG. 1 is an explanatory diagram illustrating a configuration example of a DC power supply system according to an embodiment of the present disclosure.
- FIG. 1 is an explanatory diagram illustrating a configuration example of a DC power supply system according to an embodiment of the present disclosure.
- FIG. 1 is an explanatory diagram illustrating a configuration example of a DC power supply system according to an embodiment of the present disclosure.
- FIG. 1 is an explanatory diagram illustrating a configuration example of a DC power supply system according to an embodiment of the present disclosure.
- FIG. 1 shows a configuration example of a DC power supply system 1 that includes a DC power supply device 100 that supplies DC power and a load 10 that receives DC power from the DC power supply device 100.
- the DC power supply device 100 is a power supply device that supplies DC power.
- the DC power supply device 100 may include a storage battery inside and supply DC power to the load 10, such as sunlight, wind power, geothermal heat, biomass, and other natural energy.
- the power generated by the power supply may be fed to the load 10 as DC power.
- the plug 11 When the load 10 receives DC power from the DC power supply device 100, the plug 11 is inserted into the plug receiver 20. When the supply of DC power from the DC power supply device 100 is stopped, the plug 11 is removed from the plug receiver 20. If suppression of arc discharge is not taken into consideration when the plug 11 is removed from the plug receptacle 20, the plug 11 and the plug receptacle 20 are damaged as described above.
- the DC power supply device 100 has a load from the DC power supply device 100 when the plug 11 is removed from the plug receptacle 20 in order to suppress arc discharge when the plug 11 is removed from the plug receptacle 20.
- 10 is provided with a current limiting circuit for suppressing the current flowing into the circuit 10.
- the current limiting circuit In the DC power supply device 100, when the plug 11 is completely inserted into the plug receptacle 20 and DC power is supplied from the DC power supply device 100 to the load 10, current is supplied to the current limiting circuit provided in the DC power supply device 100. It has a configuration that does not flow. Further, when the plug 11 is removed from the plug receptacle 20, the current limiting circuit reduces the current flowing from the DC power supply device 100 to the load 10 while flowing the current from the DC power supply device 100 to the load 10 through the current limiting circuit. It works in the direction of
- the DC power supply device 100 by providing the DC power supply device 100 with the current limiting circuit as described above, it is possible to suppress the occurrence of arc discharge when the DC power is cut without reducing the power efficiency when supplying DC power. Moreover, since the current limiting circuit according to the present embodiment can be a small-scale circuit as will be described later, it is possible to suppress the occurrence of arc discharge when the DC power is cut off without increasing the circuit scale.
- FIG. 2 is an explanatory diagram showing a configuration example of the DC power supply device 100.
- the DC power supply device 100 includes a current limiting circuit 30.
- the positive electrode side of the plug receptacle 20 provided in the DC power supply device 100 includes two contacts 20a and 20b, and the negative electrode side includes one contact 20c.
- the current limiting circuit 30 allows a current to flow from the DC power supply device 100 to the load 10 through the current limiting circuit 30 while the plug 11 is completely removed from the plug receiver 20. Is a circuit that functions in such a way that the current flowing from the DC power supply device 100 to the load 10 decreases to such an extent that no arc discharge occurs.
- the current limiting circuit 30 is configured such that no current flows when the plug 11 is completely inserted into the plug receptacle 20 and DC power is supplied from the DC power supply device 100 to the load 10.
- FIG. 3 is an explanatory diagram showing a specific configuration example of the DC power supply device 100.
- the DC power supply device 100 includes a current limiting circuit 30.
- the positive electrode side of the plug receptacle 20 provided in the DC power supply device 100 includes two contacts 20a and 20b, and the negative electrode side includes one contact 20c.
- the plug 11 of the load 10 includes a positive terminal 11a and a negative terminal 11b.
- FIG. 4 is an explanatory view showing a state in which the plug 11 is inserted into the plug receiver 20.
- the positive electrode side terminal 11a is first connected to the contact 20b, connected to the contact 20b, and then connected to the contact 20a as shown in FIG. Ru
- FIG. 5 is an explanatory view showing a state in which the plug 11 is removed from the plug receptacle 20.
- the positive terminal 11a is connected to the contact 20b as shown in FIG. 20 is completely removed.
- the current limiting circuit 30 In the current limiting circuit 30, no current flows when the plug 11 is completely inserted into the plug receiver 20 and the positive terminal 11 a is short-circuited between the contact 20 a and the contact 20 b, and the positive terminal 11 a is the contact. A current flows in a state connected to 20b. Therefore, since the current does not flow through the current limiting circuit 30 in a state where the plug 11 is completely inserted into the plug receiver 20, the DC power supply device 100 supplies the DC power to the load 10 without reducing the power efficiency when supplying DC power. Can be fed.
- the current limiting circuit 30 includes a MOSFET T1, a capacitor C1, a resistor R1, and a diode D1.
- the current limiting circuit 30 functions as a voltage integrating circuit.
- the MOSFET T1 uses an n-type MOSFET (Metal Oxide Semiconductor Field Effect Transistor), and the DC power supply is in a state where the positive terminal 11a of the plug 11 is connected to the contact 20b of the plug receiver 20. It is provided on a path through which current flows from the apparatus 100 to the load 10.
- 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.
- FIG. 6 is an explanatory diagram schematically showing a state in which the load 10 including the plug 11 is inserted into the plug receiver 20 of the DC power supply device 100 from the lateral direction.
- FIG. 6 shows a state where the positive terminal 11a is in contact with both the contact 20a and the contact 20b.
- FIG. 6 is an explanatory diagram showing an example of changes in current and voltage when the plug 11 is removed from the plug receiver 20.
- the positive terminal 11a is in contact with both the contact 20a and the contact 20b, and the contact 20a and the contact 20b are short-circuited. No current flows through the current limiting circuit 30.
- both ends of the current limiting circuit 30 are short-circuited by the positive terminal 11a, so that the MOSFET T1 is also in the off state.
- 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. Even if the positive electrode side terminal 11a is separated from the contact 20b after the MOSFET T1 is shifted to the off state, no electric current flows through the MOSFET T1, so that no arc discharge occurs.
- the diode D1 connected in parallel to the resistor R1 of the current limiting circuit 30 is provided when the positive terminal 11a contacts both the contact 20a and the contact 20b and the contact 20a and the contact 20b are short-circuited. In order to discharge the electric charge accumulated in the capacitor C1 without going through the resistor R1, in a short time.
- the diode D1 is provided in parallel with the resistor R1, so that even if the connection between the contact 20a and the contact 20b causes chattering or the like, the voltage integration function of the current limiting circuit 30 is short. It is possible to return in time.
- 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. 7 shows the voltage change of the voltage V1 across the current limiting circuit 30 and the voltage change of the voltage V2 applied to the load 10 depending on the relationship with the insertion position of the plug 11.
- FIG. 7 shows changes in the current i1 flowing on the contact 20a side and the current i2 flowing on the contact 20b side, depending on the relationship with the insertion position of the plug 11.
- the voltage V1 across the current limiting circuit 30 maintains a constant voltage, but as the plug 11 is removed, the voltage V1 gradually rises and the load The voltage V2 applied to 10 gradually decreases.
- the current i1 flowing to the contact 20a decreases rapidly to 0A, and the current i2 flowing to the contact 20b increases rapidly from 0A.
- the current i1 rapidly decreases to 0A and the current i2 rapidly increases from 0A, so that the current limiting circuit 30 suppresses the generation of a potential difference between the positive terminal 11a and the contact 20a.
- an n-type MOSFET is used as the MOSFET T1
- the current limiting circuit 30 having a voltage integration function is disposed on the positive electrode side.
- a current limiting circuit 30 having a voltage integration function may be arranged on the negative electrode using a p-type MOSFET.
- FIG. 8 is an explanatory diagram illustrating a modification of the DC power supply device 100.
- FIG. 8 shows an example in which the start and stop of the DC power supply from the DC power supply device 100 is performed by operating the switch 22 including the terminals 22a and 22b.
- the switch 22 shown in FIG. first, the terminal 22b is separated from the contact 21b, and after the terminal 22b is separated from the contact 21b, the terminal 22a is separated from the contact 21a by an elastic force such as a spring.
- FIG. 9 is an explanatory view showing a modification of the DC power supply device 100.
- FIG. 9 shows an example in which the DC power supply apparatus 100 includes a DC relay 31 and the DC relay 31 starts and stops the DC power supply from the DC power supply apparatus 100.
- the MOSFET T1 When starting and stopping the DC power supply from the DC power supply device 100 by the DC relay 31 as shown in FIG. 9, the MOSFET T1 is turned on at the moment when the capacitor C1 is charged, and an excessive current flows to the load 10. there is a possibility.
- the DC relay 31 makes a detour at the make contact. By diverting the current due to the electric charge charged to the capacitor C1 at the make contact of the DC relay 31, it is possible to suppress an excessive current from flowing to the load 10.
- FIG. 10 is an explanatory diagram showing a configuration example in the case where a plurality of plug receptacles 20 are present in the DC power supply device 100. As shown in FIG. 10, even when there are a plurality of plug receptacles 20 in the DC power supply device 100, one current limiting circuit 30 generates arc discharge when the plug 11 is removed from the plug receptacle 20. Can be suppressed.
- each DC power supply device is provided with a current limiting circuit so that each DC power supply device can perform arc discharge when the plug 11 is removed from the plug receptacle 20. Can be suppressed.
- each DC power supply device is provided with a current limiting circuit, so that the plug The occurrence of arc discharge when the plug 11 is removed from the receptacle 20 can be suppressed.
- FIG. 11 is an explanatory diagram showing a configuration example when two DC power supply devices 100a and 100b are connected.
- the DC power supply device 100a includes contacts 20a, 20b, and 20c, and also includes a positive electrode side terminal 11c and a negative electrode side terminal 11d of the plug.
- the DC power supply device 100b includes contacts 20d, 20e, and 20f, and includes a positive terminal 11a and a negative terminal 11b of the plug.
- the positive electrode side terminal 11a and the negative electrode side terminal 11b of the plug are inserted into the DC power supply device 100a.
- the DC power supply device 100b stops supplying power from the DC power supply device 100a the positive electrode side terminal 11a and the negative electrode side terminal 11b of the plug are extracted from the DC power supply device 100a. Functions, and the occurrence of arc discharge between the positive terminal 11a and the contacts 20a, 20b is suppressed.
- the DC power supply device 100a when the DC power supply device 100a is connected to the DC power supply device 100b and supplied with power from the DC power supply device 100b, the positive electrode side terminal 11c and the negative electrode side terminal 11d of the plug are inserted into the DC power supply device 100b.
- the DC power supply device 100a When the power supply from the DC power supply device 100b is stopped, the DC power supply device 100a has the positive terminal 11c and the negative terminal 11d of the plug removed from the DC power supply device 100b.
- the current limiting circuit 30 functions when the positive electrode side terminal 11c and the negative electrode side terminal 11d of the plug are removed from the DC power supply device 100b, and the occurrence of arc discharge between the positive electrode side terminal 11c and the contacts 20d and 20e is suppressed. Is done.
- FIG. 12 is an explanatory diagram illustrating a configuration example of the DC power supply device 100 according to an embodiment of the present disclosure.
- the DC power supply device 100 shown in FIG. 12 includes a current limiting circuit 40 for suppressing the occurrence of a spark (thermal arc) that occurs when the plug 11 is inserted into the plug receiver 20.
- the current limiting circuit 40 is a circuit for adjusting the current to gradually flow from the DC power supply device 100 to the load 10 when the plug 11 is inserted into the plug receiver 20, and includes a MOSFET T1, resistors R2, R3, And a capacitor C2.
- the resistors R2 and R3 and the capacitor C2 constitute a current integrating circuit.
- a direct current power source is formed by a current integrating circuit composed of resistors R2 and R3 and a capacitor C2. Current gradually flows from the device 100 to the load 10.
- the current by the current integrating circuit composed of the resistors R2 and R3 and the capacitor C2 decreases, and the gate voltage of the MOSFET T1 decreases.
- the MOSFET T1 is turned off. Since the shunt current to the current limiting circuit 40 is eliminated when the MOSFET T1 is turned off, the DC power supply device 100 shown in FIG. 12 can efficiently supply power from the DC power supply device 100 to the load 10.
- the DC power supply apparatus 100 shown in FIG. 12 causes the current limiting circuit 40 to gradually flow a current from the DC power supply apparatus 100 to the load 10, so that the plug receiver 20 Generation of a spark (thermal arc) when the plug 11 is inserted can be suppressed.
- FIG. 13 is an explanatory diagram illustrating a configuration example of the DC power supply device 100 according to an embodiment of the present disclosure.
- the DC power supply device 100 shown in FIG. 13 suppresses the occurrence of a spark (thermal arc) when the plug 11 is inserted into the plug receptacle 20 and the occurrence of arc discharge when the plug 11 is removed from the plug receptacle 20.
- a current limiting circuit 50 is provided.
- the plug receiver 20 shown in FIG. 13 is also provided with two contacts 20c and 20d on the negative electrode side.
- the current limiting circuit 50 is a circuit combining the current limiting circuit 30 shown in FIG. 3 and the like and the current limiting circuit 40 shown in FIG. That is, the current limiting circuit 50 is a circuit for functioning so that a current gradually flows from the DC power supply device 100 to the load 10 when the plug 11 is inserted into the plug receiver 20, and the plug 11 from the plug receiver 20 This is a circuit for functioning so that the current gradually decreases from the DC power supply device 100 to the load 10 at the time of removal.
- the current limiting circuit 50 includes a MOSFET T1, resistors R1, R2, and R3, capacitors C1 and C2, a diode D1, and a switch SW1.
- the switch SW1 has a structure in which the gate terminal of the MOSFET T1 is connected to the resistor R2 when the plug 11 is inserted into the plug receiver 20, and the gate terminal of the MOSFET T1 is connected to the resistor R1 when the plug 11 is removed from the plug receiver 20. It is.
- the switch SW1 When the insertion of the plug 11 into the plug receptacle 20 is started, the switch SW1 is connected to the one that connects the gate terminal of the MOSFET T1 to the resistor R2 in accordance with the frictional force according to the insertion of the plug 11 into the plug receptacle 20 or the like. Performs switching operation. On the contrary, when the plug 11 is removed from the plug receptacle 20, the switching is performed to connect the gate terminal of the MOSFET T1 to the resistor R1 according to the frictional force according to the insertion of the plug 11 into the plug receptacle 20. Perform the action.
- the current limiting circuit 50 causes the current to gradually flow from the DC power supply device 100 to the load 10 when the plug 11 is inserted into the plug receiver 20. It functions so that current flows gradually from the DC power supply device 100 to the load 10 when the plug 11 is removed from the plug receptacle 20.
- the current limiting circuit 50 is provided with a resistor R3 for protecting the MOSFET T1 on the gate terminal side, and a Zener diode Dz1 for protecting the MOSFET T1 is connected to the gate terminal of the MOSFET T1. You may provide between source terminals.
- FIG. 15 is an explanatory diagram illustrating a configuration example of the DC power supply device 100 according to an embodiment of the present disclosure.
- FIG. 15 shows a configuration example of a DC power supply apparatus 100 that performs DC power supply with three terminals. 15 includes electrodes 120a, 120b, and 120c into which plug terminals 111a, 111b, and 111c are inserted, respectively.
- the terminals 111b and 111c When the plug terminals 111a, 111b, and 111c are inserted into the electrodes 120a, 120b, and 120c, the terminals 111b and 111c first contact the electrodes 120b and 120c at the same time, and the terminals 111b and 111c come into contact with the electrodes 120b and 120c at the same time. After the contact, the terminal 111a contacts the electrode 120a.
- the terminal 111a is first separated from the electrode 120a, and then the terminals 111b and 111c are substantially simultaneously electroded after the terminal 111a is separated from the electrode 120a. It leaves
- the current limiting circuit 30 starts to function so that the current gradually decreases from the DC power supply device 100 to the load 10.
- FIG. 16 is an explanatory diagram illustrating a configuration example of the DC power supply device 100 according to an embodiment of the present disclosure.
- FIG. 16 shows a configuration example of a DC power supply apparatus 100 that performs DC power supply using four terminals.
- the DC power supply device 100 shown in FIG. 16 includes electrodes 120a, 120b, 120c, and 120d into which plug terminals 111a, 111b, 111c, and 111d are inserted, respectively.
- the terminals 111a, 111b, 111c, and 111d When the plug terminals 111a, 111b, 111c, and 111d are inserted into the electrodes 120a, 120b, 120c, and 120d, the terminals 111b, 111c, and 111d first contact the electrodes 120b, 120c, and 120d at the same time, and the terminals 111b, After the terminals 111c and 111d contact the electrodes 120b, 120c, and 120d substantially simultaneously, the terminal 111a contacts the electrode 120a. When the terminal 111a is sent from the other terminals 111b, 111c, and 111d and contacts the electrode 120a, the current limiting circuit 50 starts to function so that a current gradually flows from the DC power supply device 100 to the load 10.
- the terminal 111a is first separated from the electrode 120a, and then the terminals 111b and 111c are separated from the electrode 120a. , 111d are separated from the electrodes 120b, 120c, 120d substantially simultaneously. Then, when the terminal 111 a is separated from the electrode 120 a, the current limiting circuit 50 starts to function so that the current gradually decreases from the DC power supply device 100 to the load 10.
- the direct-current power supply device 100 also has a direct-current power supply in contact with three or more terminals and electrodes, as well as a direct-current power supply in contact with two terminals and electrodes. Generation of arc discharge and spark (thermal arc) can be suppressed by the current limiting circuit.
- FIG. 17 is an explanatory diagram illustrating a configuration example of the DC power supply device 100 according to an embodiment of the present disclosure.
- FIG. 17 shows a configuration example of the DC power supply device 100 using the single-pole double-throw switch SW2 when the load 10 is disconnected from the DC power supply device 100.
- the example shown in FIG. 17 is characterized in that the b-contact of the single-pole double-throw switch SW2 is connected to a point between the capacitor C1 and the resistor R1 of the current limiting circuit 30. Even when the single-pole double-throw switch SW2 is used when disconnecting the load 10 from the DC power supply device 100, the current limiting circuit 30 can suppress the occurrence of arc discharge and spark (thermal arc).
- FIG. 18 is an explanatory diagram showing a transition example of current and voltage in the configuration example of the DC power supply device 100 shown in FIG.
- the DC power supply device 100 shown in FIG. 17 prevents the current limiting circuit 30 from operating when the voltage V0 of the DC power supply device 100 is applied to the load 10 as an initial state.
- the DC power supply device 100 shown in FIG. 17 can secure a distance where the conductive plate is sufficiently separated from the contact a during the OFF operation of the single-pole double-throw switch SW2, and no arc discharge occurs even if the contact plate b is separated.
- the operation of the current limiting circuit 30 is stopped to suppress unnecessary power consumption and to suppress the heat generation of the MOSFET T1 that is a switching element.
- FIG. 19 is an explanatory diagram illustrating a configuration example of the DC power supply device 100 according to an embodiment of the present disclosure.
- FIG. 19 shows a configuration example of a DC power supply apparatus 100 that performs DC power supply with four terminals. 19 includes electrodes 120a, 120b, 120c, and 120d into which plug terminals 111a, 111b, 111c, and 111d are inserted, respectively.
- the terminals 111b, 111c, and 111d When the plug terminals 111a, 111b, 111c, and 111d are inserted into the electrodes 120a, 120b, 120c, and 120d, the terminals 111b, 111c, and 111d first contact the electrodes 120b, 120c, and 120d at the same time, and the terminals 111b, After the terminals 111c and 111d contact the electrodes 120b, 120c, and 120d substantially simultaneously, the terminal 111a contacts the electrode 120a.
- the terminal 111a is first separated from the electrode 120a, and then the terminals 111b and 111c are separated from the electrode 120a. , 111d are separated from the electrodes 120b, 120c, 120d substantially simultaneously.
- the current limiting circuit 30 starts to function so that the current gradually decreases from the DC power supply device 100 to the load 10.
- the terminals 111a and 111c of the plug do not contact the electrodes 120a and 120c at the same time.
- the leading and terminal positions of the terminals are different between the plug terminals 111a and 111c, and the positions of the electrodes 120a and 120c are such that the plug terminals 111a and 111c do not simultaneously contact the electrodes 120a and 120c. It has become.
- the current limiting circuit 30 prevents the occurrence of arc discharge and spark (thermal arc). it can.
- FIG. 20 is an explanatory diagram illustrating a configuration example of the DC power supply device 100 according to an embodiment of the present disclosure.
- FIG. 20 shows a configuration example of the DC power supply device 100 that uses the switch SW3 when the load 10 is disconnected from the DC power supply device 100.
- FIG. 20 shows a configuration in which the conduction plate of the switch SW3 is switched between the contact a and the contact b by the contact between the plug terminal 11a and the switch SW3. Further, the example shown in FIG. 20 is characterized in that the b contact of the switch SW3 is connected to a point between the capacitor C1 and the resistor R1 of the current limiting circuit 30.
- the contact 20a and the terminal 11a are brought into contact with the contact 20b and the terminal 11b, respectively. Further, when the plug is inserted into the DC power supply device 100, a minute current flows to the capacitor C1 through the contact b of the switch SW3 due to the contact between the contact 20a and the terminal 11a, and the capacitor C1 is charged. .
- the plug is further inserted into the DC power supply device 100, and the switch SW3 is switched from the contact point b to the contact point a by the contact with the terminal 11a.
- the conduction plate of the switch SW3 is switched to the contact a
- the DC power from the DC power supply device 100 is supplied to the load 10 through the contact a.
- the conduction plate of the switch SW3 is switched to the contact point a, the charge stored in the capacitor C1 is rapidly discharged through the diode D1.
- the switch SW3 When the plug is removed from the DC power supply device 100, the switch SW3 is first switched from the contact point a to the contact point b by releasing the contact with the terminal 11b. When the conductive plate of the switch SW3 is disconnected from the contact a, the current limiting circuit 30 operates and the current from the DC power supply device 100 is diverted to the current limiting circuit 30, thereby suppressing the occurrence of arc discharge.
- FIG. 21 is an explanatory diagram illustrating a configuration example of the DC power supply device 100 according to an embodiment of the present disclosure.
- FIG. 21 shows a configuration example of the DC power supply device 100 including the current limiting circuit 30 using the thermistor 150 instead of the resistor R1.
- the thermistor 150 is a NTC (Negative Temperature Coefficient) thermistor whose resistance value is inversely proportional to temperature.
- the current limiting circuit 30 shown in FIG. 21 uses the effect that the thermistor 150 self-heats due to the current flowing in the thermistor 150, which is an NTC thermistor, and the resistance value at room temperature decreases rapidly. It is shortened.
- the current limiting circuit 30 shown in FIG. 21 uses a resistance change due to self-heating of the thermistor 150, which is an NTC thermistor, shortens the charging time of the capacitor C1, and the MOSFET regardless of the power supply voltage difference of the DC power supply The arc discharge condition can be suppressed while suppressing the heat generation due to the power consumption of T1.
- FIG. 22 shows a voltage change example of the voltage V1 across the current limiting circuit 30 and a voltage change of the voltage V2 applied to the load 10 depending on the relationship with the insertion position of the plug 11 in the power control apparatus 100 shown in FIG. It is explanatory drawing.
- FIG. 22 also shows a current change example of the current i1 flowing on the contact 20a side and the current i2 flowing on the contact 20b side, depending on the relationship with the insertion position of the plug 11.
- voltages V1 and V2 and currents i1 and i2 in the voltage change graph shown in FIG. 7 are indicated by broken lines as pressures V1 'and V2' and currents i1 'and i2', respectively.
- the current limiting circuit 30 shown in FIG. 21 shortens the charging time of the capacitor C1, thereby shortening the operating time of the MOSFET T1 regardless of the power supply voltage, and suppressing the heat generation due to the power consumption of the MOSFET T1, while maintaining the arc. The occurrence of discharge can be suppressed.
- FIG. 22 also shows the transition of the power consumption P of the MOSFET T1 according to the relationship with the insertion position of the plug 11.
- the power consumption P of the MOSFET T1 also changes from P ′ to P. That is, the current limiting circuit 30 shown in FIG. 21 can suppress the power consumption of the MOSFET T1 by using the thermistor 150 which is an NTC thermistor.
- the thermistor 150 shown in FIG. 21 uses an NTC thermistor, but a CTR (Critical Temperature Resistor) thermistor instead of the NTC thermistor has the effect of suppressing the generation of arc discharge while suppressing the heat generation due to the power consumption of the MOSFET T1. I can expect.
- the CTR thermistor is a thermistor whose resistance decreases abruptly when a certain temperature is exceeded. Even if a CTR thermistor is used instead of an NTC thermistor whose resistance value is inversely proportional to temperature, the current limiting circuit 30 shortens the charging time of the capacitor C1. It can be made.
- thermistor 150 which is the NTC thermistor shown in FIG. 21, in parallel with a resistor or a PTC (Positive Temperature Coefficient) thermistor, it is possible to suppress a variation in integration time due to the operating environment temperature of the current limiting circuit 30.
- the PTC thermistor is a thermistor whose resistance rapidly increases when a certain temperature is exceeded.
- the current limiting circuit 30 shown in FIG. 21 can shorten the cutoff time of the MOSFET T1. Further, the DC limiting circuit 30 shown in FIG. 21 does not increase the power consumption of the MOSFET T1 in proportion to the increase of the voltage even when the voltage of the DC power supply changes by a factor of two when the DC is cut off. , MOSFET T1 heat dissipation can be reduced.
- FIG. 23 is an explanatory diagram illustrating a functional configuration example of the moving object 200 including the current limiting circuit 30.
- the moving body 200 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. 23 illustrates an example in which the moving body 200 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 included in a 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 200 such as a motor.
- a current limiting circuit 30 is provided in the middle of a path through which DC power is supplied from the battery 210 to the driving unit 220.
- the moving body 200 shown in FIG. 23 is provided with a current limiting circuit 30 on a path through which DC power is supplied from the battery 210 to the driving unit 220, so that, for example, when the battery 210 is temporarily attached or detached, arc discharge is performed. Generation can be suppressed.
- FIG. 23 illustrates an example of the moving body 200 provided with only one current limiting circuit 30, the present disclosure is not limited to such an example. That is, a plurality of current limiting circuits 30 may be provided in the middle of a path through which DC power is supplied. Further, the current limiting circuit 30 may be provided not only in the middle of the path through which the DC power is supplied from the battery 210 to the drive unit 220 but also in other places, for example, in the middle of the path when charging the battery 210 with the DC power. good.
- the mobile unit 200 can safely charge the battery 210 with DC power by providing the current limiting circuit 30 in the middle of the path when charging the battery 210 with DC power.
- the DC power supply device 100 when the plug 11 is removed from the DC power supply device 100 while the DC power supply is being performed from the DC power supply device 100 to the load 10, the DC power supply device 100 There is provided a DC power supply device 100 including a current limiting circuit 30 that functions to gradually reduce the current flowing to the load 10 and can suppress the occurrence of arc discharge when the plug 11 is removed from the DC power supply device 100. .
- the current limiting circuit 30 In the current limiting circuit 30, no current flows when the plug 11 is completely inserted into the DC power supply device 100.
- the current limiting circuit 30 consumes power when DC power is supplied from the DC power supply device 100 to the load 10 because no current flows when the plug 11 is completely inserted into the DC power supply device 100. Therefore, the power supply efficiency is not reduced.
- the current limiting circuit 30 accumulates charges in the capacitor C1 due to a current generated by a potential difference generated between the drain and source of the MOSFET T1 when the plug 11 is removed from the DC power supply device 100, and accumulates the charge in the capacitor C1. As a result, the gate voltage of the MOSFET T1 is increased to turn on the MOSFET T1.
- the current limiting circuit 30 allows the current from the DC power supply 100 to the load 10 to flow through the MOSFET T1 when the MOSFET T1 is turned on by the accumulation of electric charge in the capacitor C1, so that the electrode of the plug 11 is in contact with the current limit circuit 30 until then. It is possible to suppress the occurrence of a potential difference between the contactor and the arc discharge when the plug 11 is removed from the DC power supply device 100.
- the plug 11 and the plug receiver 20 according to the embodiment of the present disclosure may be applied to a male connector and a female connector of USB (Universal Serial Bus), respectively.
- USB Universal Serial Bus
- the DC limiting circuit 30 according to the embodiment of the present disclosure is provided in a device including a USB port, so that the USB female connector The occurrence of arc discharge when the male connector is removed can be suppressed.
- the current limiting circuit according to (4) further including a resistance element that sets a time for applying a voltage to the gate terminal of the switching element together with the capacitance element.
- the current limiting circuit according to (5) wherein the resistance element is an element whose resistance value decreases with increasing temperature.
- the resistance element is an element whose resistance value decreases with increasing temperature.
- the current flowing to the terminal through the second contact is gradually increased.
- the current limiting circuit according to (7) further including a switch for switching.
- At least a positive electrode and a negative electrode for supplying DC power At least one of the positive electrode or the negative electrode is: A first contact; A second contact provided at a position where a terminal on the power receiving side through which a direct current flows when the DC power is supplied contacts the first contact; A current limiting circuit for reducing a current flowing to the terminal through the second contact before the contact between the terminal and the second contact is released; With The current limiting circuit does not pass current when the terminal is in contact with the first contact, and passes through the second contact only when the terminal is in contact with the second contact.
- the current limiting circuit reduces a potential difference between a positive electrode and a negative electrode of a device that receives the DC power by gradually increasing a potential difference between the first contact and the second contact,
- the current limiting circuit is turned on when the terminal is no longer connected to the first contact, and is connected to the terminal through the second contact with the terminal connected only to the second contact.
- the current limiting circuit starts charging when the terminal is not connected to the first contact, and increases the gate voltage of the switching element in a state where the terminal is connected only to the second contact.
- the current limiting circuit includes a resistance element that sets a time for applying a voltage to the gate terminal of the switching element together with the capacitance element.
- the resistance element is an element whose resistance value decreases with increasing temperature.
- the current limiting circuit gradually increases a current that flows to the terminal through the second contact when the terminal contacts the second contact before contacting the first contact.
- the DC power supply connector according to any one of (1) to (14).
- the current limiting circuit includes a case where the terminal contacts the second contact before the terminal contacts the first contact, and a case where the terminal contacts the first contact after the terminal contacts the first contact.
- the current limiting circuit reduces a potential difference between a positive electrode and a negative electrode of a device that receives the DC power by gradually increasing a potential difference between the first contact and the second contact,
- the DC power supply device according to (17) wherein a current flowing between a second contact and the terminal is reduced.
- (19) Switching that turns on when the terminal is no longer connected to the first contact, and reduces the current flowing to the terminal through the second contact with the terminal connected only to the second contact
- the current limiting circuit starts charging when the terminal is not connected to the first contact, and increases the gate voltage of the switching element in a state where the terminal is connected only to the second contact.
- the direct current power supply device including a capacitive element.
- the DC power supply device (20), wherein the current limiting circuit includes a resistance element that sets a time for applying a voltage to the gate terminal of the switching element together with the capacitance element.
- the direct-current power supply device 21), wherein the resistance element is an element whose resistance value decreases with increasing temperature.
- the current limiting circuit gradually increases a current flowing to the terminal through the second contact when the terminal contacts the second contact before contacting the first contact.
- the current limiting circuit includes a case where the terminal contacts the second contact before the terminal contacts the first contact, and a case where the terminal contacts the first contact after the terminal contacts the first contact.
- the direct-current power supply device further including a switch that switches a function with a case where the function is performed.
- a switch that switches a function with a case where the function is performed.
- a moving body comprising the current limiting circuit according to any one of (1) to (8).
- (31) A battery for supplying DC power; A drive unit driven by DC power supplied from the battery; At least one current limiting circuit according to claim 1, provided between the battery and the drive unit;
- a power supply system comprising: (32) The power supply system according to (31), wherein the power supply system is provided in a moving body.
- the current limiting circuit reduces a potential difference between a positive electrode and a negative electrode of a device that receives the DC power by gradually increasing a potential difference between the first contact and the second contact,
- (34) Switching that turns on when the terminal is no longer connected to the first contact, and reduces the current flowing to the terminal through the second contact with the terminal connected only to the second contact
- the current limiting circuit starts charging when the terminal is not connected to the first contact, and increases the gate voltage of the switching element in a state where the terminal is connected only to the second contact.
- the current limiting circuit includes a resistance element that sets a time for applying a voltage to the gate terminal of the switching element together with the capacitance element.
- the resistance element is an element whose resistance value decreases as the temperature increases.
- the current limiting circuit gradually increases a current that flows to the terminal through the second contact when the terminal contacts the second contact before contacting the first contact.
- the current limiting circuit includes a case where the terminal contacts the second contact before the terminal contacts the first contact, and a case where the terminal contacts the first contact after the terminal contacts the first contact.
- DC power supply system 10 Load 11: Plug 11a: Positive terminal 11b: Negative terminal 11c: Positive terminal 11d: Negative terminal 20: Plug receptacles 20a, 20b, 20c, 20d, 20e, 20f, 21a, 21b: contact 22: switches 22a, 22b: terminals 30, 40, 50: current limiting circuit 31: DC relays 100, 100a, 100b: DC power supply devices 111a, 111b, 111c, 111d: terminals 120a, 120b, 120c, 120d : Electrode 200: Moving object 210: Battery 220: Drive unit
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Abstract
Description
1.本開示の一実施形態
1.1.背景
1.2.構成例
2.まとめ
[1.1.背景]
本開示の一実施形態について詳細に説明する前に、まず本開示の一実施形態の背景について説明する。
まず、本開示の一実施形態に係る直流電力供給システムの構成例について説明する。図1は、本開示の一実施形態に係る直流電力供給システムの構成例を示す説明図である。以下、図1を用いて、本開示の一実施形態に係る直流電力供給システムの構成例について説明する。
以上説明したように本開示の一実施形態によれば、直流電源装置100から負荷10へ直流給電が行われている際に直流電源装置100からプラグ11が抜去されると、直流電源装置100から負荷10へ流れる電流を徐々に低下させる方向に機能し、直流電源装置100からプラグ11が抜去された際のアーク放電の発生を抑制できる電流制限回路30を備えた直流電源装置100が提供される。
(1)
直流電力の供給時に該直流電力を供給する電極に設けられる第1の接点に接触する前に、前記電極における該直流電力の供給時に電流が流れる受電側の端子が接触する位置に設けられる第2の接点と前記端子との接触が解除される前に、前記第2の接点を通じて前記端子へ流れる電流を減少させ、
前記端子が前記第1の接点に接触している場合は電流を流さず、前記端子が前記第2の接点に接触している場合にのみ前記第2の接点を通じて前記端子へ流れる電流を減少させる、電流制限回路。
(2)
前記第1の接点と前記第2の接点との間の電位差を徐々に上昇させることで前記直流電力を受電する機器の正極と負極との間の電位差を減少させ、前記第2の接点と前記端子との間に流れる電流を減少させる、前記(1)に記載の電流制限回路。
(3)
前記端子が前記第1の接点に接続されなくなった時点でオン状態になり、前記端子が前記第2の接点にのみ接続された状態で前記第2の接点を通じて前記端子へ流れる電流を減少させるスイッチング素子を備える、前記(2)に記載の電流制限回路。
(4)
前記端子が前記第1の接点に接続されなくなった時点で充電が開始され、前記端子が前記第2の接点にのみ接続された状態で前記スイッチング素子のゲート電圧を上昇させる容量素子を備える、前記(3)に記載の電流制限回路。
(5)
前記スイッチング素子のゲート端子に電圧を印加する時間を、前記容量素子と共に設定する抵抗素子を備える、前記(4)に記載の電流制限回路。
(6)
前記抵抗素子は、抵抗値が温度上昇に伴い低下する素子である、前記(5)に記載の電流制限回路。
(7)
前記端子が前記第1の接点と接触する前に前記第2の接点と接触する際に、前記第2の接点を通じて前記端子へ流れる電流を徐々に増加させる、前記(1)~(6)のいずれかに記載の電流制限回路。
(8)
前記端子が前記第1の接点と接触する前に前記第2の接点と接触する場合と、前記端子が前記第1の接点と接触してから前記第2の接点と接触する場合との機能を切り替えるスイッチを備える、前記(7)に記載の電流制限回路。
(9)
直流電力を供給する正極側電極及び負極側電極を少なくとも備え、
前記正極側電極または負極側電極の少なくともいずれかは、
第1の接点と、
前記直流電力の供給時に直流電流が流れる受電側の端子が前記第1の接点に接触する前に接触する位置に設けられる第2の接点と、
前記端子と前記第2の接点との接触が解除される前に前記第2の接点を通じて前記端子へ流れる電流を減少させる電流制限回路と、
を備え、
前記電流制限回路は、前記端子が前記第1の接点に接触している場合は電流を流さず、前記端子が前記第2の接点に接触している場合にのみ前記第2の接点を通じて前記端子へ流れる電流を減少させる、直流電力供給コネクタ。
(10)
前記電流制限回路は、前記第1の接点と前記第2の接点との間の電位差を徐々に上昇させることで前記直流電力を受電する機器の正極と負極との間の電位差を減少させ、前記第2の接点と前記端子との間に流れる電流を減少させる、前記(9)に記載の直流電力供給コネクタ。
(11)
前記電流制限回路は、前記端子が前記第1の接点に接続されなくなった時点でオン状態になり、前記端子が前記第2の接点にのみ接続された状態で前記第2の接点を通じて前記端子へ流れる電流を減少させるスイッチング素子を備える、前記(10)に記載の直流電力供給コネクタ。
(12)
前記電流制限回路は、前記端子が前記第1の接点に接続されなくなった時点で充電が開始され、前記端子が前記第2の接点にのみ接続された状態で前記スイッチング素子のゲート電圧を上昇させる容量素子を備える、前記(11)に記載の直流電力供給コネクタ。
(13)
前記電流制限回路は、前記スイッチング素子のゲート端子に電圧を印加する時間を、前記容量素子と共に設定する抵抗素子を備える、前記(12)に記載の直流電力供給コネクタ。
(14)
前記抵抗素子は、抵抗値が温度上昇に伴い低下する素子である、前記(13)に記載の電流制限コネクタ。
(15)
前記電流制限回路は、前記端子が前記第1の接点と接触する前に前記第2の接点と接触する際に、前記第2の接点を通じて前記端子へ流れる電流を徐々に増加させる、前記(9)~(14)のいずれかに記載の直流電力供給コネクタ。
(16)
前記電流制限回路は、前記端子が前記第1の接点と接触する前に前記第2の接点と接触する場合と、前記端子が前記第1の接点と接触してから前記第2の接点と接触する場合との機能を切り替えるスイッチを備える、前記(15)に記載の電流制限コネクタ。
(17)
直流電力を供給する直流電源と、
前記直流電源からの直流電力を供給する正極側電極及び負極側電極と、
を少なくとも備え、
前記正極側電極または負極側電極の少なくともいずれかは、
第1の接点と、
前記直流電力の供給時に直流電流が流れる受電側の端子が前記第1の接点に接触する前に接触する位置に設けられる第2の接点と、
前記端子と前記第2の接点との接触が解除される前に前記第2の接点を通じて前記端子へ流れる電流を減少させる電流制限回路と、
を備え、
前記電流制限回路は、前記端子が前記第1の接点に接触している場合は電流を流さず、前記端子が前記第2の接点に接触している場合にのみ前記第2の接点を通じて前記端子へ流れる電流を減少させる、直流電源装置。
(18)
前記電流制限回路は、前記第1の接点と前記第2の接点との間の電位差を徐々に上昇させることで前記直流電力を受電する機器の正極と負極との間の電位差を減少させ、前記第2の接点と前記端子との間に流れる電流を減少させる、前記(17)に記載の直流電源装置。
(19)
前記端子が前記第1の接点に接続されなくなった時点でオン状態になり、前記端子が前記第2の接点にのみ接続された状態で前記第2の接点を通じて前記端子へ流れる電流を減少させるスイッチング素子を備える、前記(18)に記載の直流電源装置。
(20)
前記電流制限回路は、前記端子が前記第1の接点に接続されなくなった時点で充電が開始され、前記端子が前記第2の接点にのみ接続された状態で前記スイッチング素子のゲート電圧を上昇させる容量素子を備える、前記(19)に記載の直流電源装置。
(21)
前記電流制限回路は、前記スイッチング素子のゲート端子に電圧を印加する時間を、前記容量素子と共に設定する抵抗素子を備える、前記(20)に記載の直流電源装置。
(22)
前記抵抗素子は、抵抗値が温度上昇に伴い低下する素子である、前記(21)に記載の直流電源装置。
(23)
前記電流制限回路は、前記端子が前記第1の接点と接触する前に前記第2の接点と接触する際に、前記第2の接点を通じて前記端子へ流れる電流を徐々に増加させる、前記(17)~(22)のいずれかに記載の直流電源装置。
(24)
前記電流制限回路は、前記端子が前記第1の接点と接触する前に前記第2の接点と接触する場合と、前記端子が前記第1の接点と接触してから前記第2の接点と接触する場合との機能を切り替えるスイッチを備える、前記(23)に記載の直流電源装置。
(25)
直流電力の供給を受ける端子がドレイン側の接点と接続しなくなった時点でオン状態になり、前記端子がソース側の接点にのみ接続された状態で前記ソース側の接点を通じて前記端子へ流れる電流を減少させるスイッチング素子と、
端子が前記ドレイン側の接点に接続されなくなった時点で充電が開始され、前記端子が前記ソース側の接点にのみ接続された状態で前記スイッチング素子のゲート電圧を上昇させる容量素子と、
前記スイッチング素子のゲート端子に電圧を印加する時間を、前記容量素子と共に設定する抵抗素子と、
を備える、電流制限回路。
(26)
前記ドレイン側の接点と前記ソース側の接点との間の電位差を徐々に上昇させることで前記直流電力を受電する機器の正極と負極との間の電位差を減少させ、前記ソース側の接点と前記端子との間に流れる電流を減少させる、前記(25)に記載の電流制限回路。
(27)
前記抵抗素子は、抵抗値が温度上昇に伴い低下する素子である、前記(25)または(26)に記載の電流制限回路。
(28)
前記端子が前記ドレイン側の接点と接触する前に前記ソース側の接点と接触する際に、前記ソース側の接点を通じて前記端子へ流れる電流を徐々に増加させる、前記(25)~(27)のいずれかに記載の電流制限回路。
(29)
前記端子が前記ドレイン側の接点と接触する前に前記ソース側の接点と接触する場合と、前記端子が前記ドレイン側の接点と接触してから前記ソース側の接点と接触する場合との機能を切り替えるスイッチを備える、前記(28)に記載の電流制限回路。
(30)
前記(1)~(8)のいずれかに記載の電流制限回路を備える、移動体。
(31)
直流電力を供給するバッテリと、
前記バッテリから供給される直流電力による駆動する駆動部と、
前記バッテリと前記駆動部との間に設けられる、少なくとも1つの、請求項1に記載の電流制限回路と、
を備える、電力供給システム。
(32)
前記電力供給システムは、移動体に備えられる、前記(31)に記載の電力供給システム。
(33)
前記電流制限回路は、前記第1の接点と前記第2の接点との間の電位差を徐々に上昇させることで前記直流電力を受電する機器の正極と負極との間の電位差を減少させ、前記第2の接点と前記端子との間に流れる電流を減少させる、前記(31)または(32)に記載の電力供給システム。
(34)
前記端子が前記第1の接点に接続されなくなった時点でオン状態になり、前記端子が前記第2の接点にのみ接続された状態で前記第2の接点を通じて前記端子へ流れる電流を減少させるスイッチング素子を備える、前記(33)に記載の電力供給システム。
(35)
前記電流制限回路は、前記端子が前記第1の接点に接続されなくなった時点で充電が開始され、前記端子が前記第2の接点にのみ接続された状態で前記スイッチング素子のゲート電圧を上昇させる容量素子を備える、前記(34)に記載の電力供給システム。
(36)
前記電流制限回路は、前記スイッチング素子のゲート端子に電圧を印加する時間を、前記容量素子と共に設定する抵抗素子を備える、前記(35)に記載の電力供給システム。
(37)
前記抵抗素子は、抵抗値が温度上昇に伴い低下する素子である、前記(36)に記載の電力供給システム。
(38)
前記電流制限回路は、前記端子が前記第1の接点と接触する前に前記第2の接点と接触する際に、前記第2の接点を通じて前記端子へ流れる電流を徐々に増加させる、前記(31)~(37)のいずれかに記載の電力供給システム。
(39)
前記電流制限回路は、前記端子が前記第1の接点と接触する前に前記第2の接点と接触する場合と、前記端子が前記第1の接点と接触してから前記第2の接点と接触する場合との機能を切り替えるスイッチを備える、前記(38)に記載の電力供給システム。
10 :負荷
11 :プラグ
11a :正極側端子
11b :負極側端子
11c :正極側端子
11d :負極側端子
20 :プラグ受け
20a、20b、20c、20d、20e、20f、21a、21b :接触子
22 :スイッチ
22a、22b :端子
30、40、50 :電流制限回路
31 :DCリレー
100、100a、100b :直流電源装置
111a、111b、111c、111d :端子
120a、120b、120c、120d :電極
200 :移動体
210 :バッテリ
220 :駆動部
Claims (39)
- 直流電力の供給時に該直流電力を供給する電極に設けられる第1の接点に接触する前に、前記電極における該直流電力の供給時に電流が流れる受電側の端子が接触する位置に設けられる第2の接点と前記端子との接触が解除される前に、前記第2の接点を通じて前記端子へ流れる電流を減少させ、
前記端子が前記第1の接点に接触している場合は電流を流さず、前記端子が前記第2の接点に接触している場合にのみ前記第2の接点を通じて前記端子へ流れる電流を減少させる、電流制限回路。 - 前記第1の接点と前記第2の接点との間の電位差を徐々に上昇させることで前記直流電力を受電する機器の正極と負極との間の電位差を減少させ、前記第2の接点と前記端子との間に流れる電流を減少させる、請求項1に記載の電流制限回路。
- 前記端子が前記第1の接点に接続されなくなった時点でオン状態になり、前記端子が前記第2の接点にのみ接続された状態で前記第2の接点を通じて前記端子へ流れる電流を減少させるスイッチング素子を備える、請求項2に記載の電流制限回路。
- 前記端子が前記第1の接点に接続されなくなった時点で充電が開始され、前記端子が前記第2の接点にのみ接続された状態で前記スイッチング素子のゲート電圧を上昇させる容量素子を備える、請求項3に記載の電流制限回路。
- 前記スイッチング素子のゲート端子に電圧を印加する時間を、前記容量素子と共に設定する抵抗素子を備える、請求項4に記載の電流制限回路。
- 前記抵抗素子は、抵抗値が温度上昇に伴い低下する素子である、請求項5に記載の電流制限回路。
- 前記端子が前記第1の接点と接触する前に前記第2の接点と接触する際に、前記第2の接点を通じて前記端子へ流れる電流を徐々に増加させる、請求項1に記載の電流制限回路。
- 前記端子が前記第1の接点と接触する前に前記第2の接点と接触する場合と、前記端子が前記第1の接点と接触してから前記第2の接点と接触する場合との機能を切り替えるスイッチを備える、請求項7に記載の電流制限回路。
- 直流電力を供給する正極側電極及び負極側電極を少なくとも備え、
前記正極側電極または負極側電極の少なくともいずれかは、
第1の接点と、
前記直流電力の供給時に直流電流が流れる受電側の端子が前記第1の接点に接触する前に接触する位置に設けられる第2の接点と、
前記端子と前記第2の接点との接触が解除される前に前記第2の接点を通じて前記端子へ流れる電流を減少させる電流制限回路と、
を備え、
前記電流制限回路は、前記端子が前記第1の接点に接触している場合は電流を流さず、前記端子が前記第2の接点に接触している場合にのみ前記第2の接点を通じて前記端子へ流れる電流を減少させる、直流電力供給コネクタ。 - 前記電流制限回路は、前記第1の接点と前記第2の接点との間の電位差を徐々に上昇させることで前記直流電力を受電する機器の正極と負極との間の電位差を減少させ、前記第2の接点と前記端子との間に流れる電流を減少させる、請求項9に記載の直流電力供給コネクタ。
- 前記電流制限回路は、前記端子が前記第1の接点に接続されなくなった時点でオン状態になり、前記端子が前記第2の接点にのみ接続された状態で前記第2の接点を通じて前記端子へ流れる電流を減少させるスイッチング素子を備える、請求項10に記載の直流電力供給コネクタ。
- 前記電流制限回路は、前記端子が前記第1の接点に接続されなくなった時点で充電が開始され、前記端子が前記第2の接点にのみ接続された状態で前記スイッチング素子のゲート電圧を上昇させる容量素子を備える、請求項11に記載の直流電力供給コネクタ。
- 前記電流制限回路は、前記スイッチング素子のゲート端子に電圧を印加する時間を、前記容量素子と共に設定する抵抗素子を備える、請求項12に記載の直流電力供給コネクタ。
- 前記抵抗素子は、抵抗値が温度上昇に伴い低下する素子である、請求項13に記載の電流制限コネクタ。
- 前記電流制限回路は、前記端子が前記第1の接点と接触する前に前記第2の接点と接触する際に、前記第2の接点を通じて前記端子へ流れる電流を徐々に増加させる、請求項9に記載の直流電力供給コネクタ。
- 前記電流制限回路は、前記端子が前記第1の接点と接触する前に前記第2の接点と接触する場合と、前記端子が前記第1の接点と接触してから前記第2の接点と接触する場合との機能を切り替えるスイッチを備える、請求項15に記載の電流制限コネクタ。
- 直流電力を供給する直流電源と、
前記直流電源からの直流電力を供給する正極側電極及び負極側電極と、
を少なくとも備え、
前記正極側電極または負極側電極の少なくともいずれかは、
第1の接点と、
前記直流電力の供給時に直流電流が流れる受電側の端子が前記第1の接点に接触する前に接触する位置に設けられる第2の接点と、
前記端子と前記第2の接点との接触が解除される前に前記第2の接点を通じて前記端子へ流れる電流を減少させる電流制限回路と、
を備え、
前記電流制限回路は、前記端子が前記第1の接点に接触している場合は電流を流さず、前記端子が前記第2の接点に接触している場合にのみ前記第2の接点を通じて前記端子へ流れる電流を減少させる、直流電源装置。 - 前記電流制限回路は、前記第1の接点と前記第2の接点との間の電位差を徐々に上昇させることで前記直流電力を受電する機器の正極と負極との間の電位差を減少させ、前記第2の接点と前記端子との間に流れる電流を減少させる、請求項17に記載の直流電源装置。
- 前記端子が前記第1の接点に接続されなくなった時点でオン状態になり、前記端子が前記第2の接点にのみ接続された状態で前記第2の接点を通じて前記端子へ流れる電流を減少させるスイッチング素子を備える、請求項18に記載の直流電源装置。
- 前記電流制限回路は、前記端子が前記第1の接点に接続されなくなった時点で充電が開始され、前記端子が前記第2の接点にのみ接続された状態で前記スイッチング素子のゲート電圧を上昇させる容量素子を備える、請求項19に記載の直流電源装置。
- 前記電流制限回路は、前記スイッチング素子のゲート端子に電圧を印加する時間を、前記容量素子と共に設定する抵抗素子を備える、請求項20に記載の直流電源装置。
- 前記抵抗素子は、抵抗値が温度上昇に伴い低下する素子である、請求項21に記載の直流電源装置。
- 前記電流制限回路は、前記端子が前記第1の接点と接触する前に前記第2の接点と接触する際に、前記第2の接点を通じて前記端子へ流れる電流を徐々に増加させる、請求項17に記載の直流電源装置。
- 前記電流制限回路は、前記端子が前記第1の接点と接触する前に前記第2の接点と接触する場合と、前記端子が前記第1の接点と接触してから前記第2の接点と接触する場合との機能を切り替えるスイッチを備える、請求項23に記載の直流電源装置。
- 直流電力の供給を受ける端子がドレイン側の接点と接続しなくなった時点でオン状態になり、前記端子がソース側の接点にのみ接続された状態で前記ソース側の接点を通じて前記端子へ流れる電流を減少させるスイッチング素子と、
端子が前記ドレイン側の接点に接続されなくなった時点で充電が開始され、前記端子が前記ソース側の接点にのみ接続された状態で前記スイッチング素子のゲート電圧を上昇させる容量素子と、
前記スイッチング素子のゲート端子に電圧を印加する時間を、前記容量素子と共に設定する抵抗素子と、
を備える、電流制限回路。 - 前記ドレイン側の接点と前記ソース側の接点との間の電位差を徐々に上昇させることで前記直流電力を受電する機器の正極と負極との間の電位差を減少させ、前記ソース側の接点と前記端子との間に流れる電流を減少させる、請求項25に記載の電流制限回路。
- 前記抵抗素子は、抵抗値が温度上昇に伴い低下する素子である、請求項25に記載の電流制限回路。
- 前記端子が前記ドレイン側の接点と接触する前に前記ソース側の接点と接触する際に、前記ソース側の接点を通じて前記端子へ流れる電流を徐々に増加させる、請求項25に記載の電流制限回路。
- 前記端子が前記ドレイン側の接点と接触する前に前記ソース側の接点と接触する場合と、前記端子が前記ドレイン側の接点と接触してから前記ソース側の接点と接触する場合との機能を切り替えるスイッチを備える、請求項28に記載の電流制限回路。
- 請求項1に記載の電流制限回路を備える、移動体。
- 直流電力を供給するバッテリと、
前記バッテリから供給される直流電力による駆動する駆動部と、
前記バッテリと前記駆動部との間に設けられる、少なくとも1つの、請求項1に記載の電流制限回路と、
を備える、電力供給システム。 - 前記電力供給システムは、移動体に備えられる、請求項31に記載の電力供給システム。
- 前記電流制限回路は、前記第1の接点と前記第2の接点との間の電位差を徐々に上昇させることで前記直流電力を受電する機器の正極と負極との間の電位差を減少させ、前記第2の接点と前記端子との間に流れる電流を減少させる、請求項31に記載の電力供給システム。
- 前記端子が前記第1の接点に接続されなくなった時点でオン状態になり、前記端子が前記第2の接点にのみ接続された状態で前記第2の接点を通じて前記端子へ流れる電流を減少させるスイッチング素子を備える、請求項33に記載の電力供給システム。
- 前記電流制限回路は、前記端子が前記第1の接点に接続されなくなった時点で充電が開始され、前記端子が前記第2の接点にのみ接続された状態で前記スイッチング素子のゲート電圧を上昇させる容量素子を備える、請求項34に記載の電力供給システム。
- 前記電流制限回路は、前記スイッチング素子のゲート端子に電圧を印加する時間を、前記容量素子と共に設定する抵抗素子を備える、請求項35に記載の電力供給システム。
- 前記抵抗素子は、抵抗値が温度上昇に伴い低下する素子である、請求項36に記載の電力供給システム。
- 前記電流制限回路は、前記端子が前記第1の接点と接触する前に前記第2の接点と接触する際に、前記第2の接点を通じて前記端子へ流れる電流を徐々に増加させる、請求項31に記載の電力供給システム。
- 前記電流制限回路は、前記端子が前記第1の接点と接触する前に前記第2の接点と接触する場合と、前記端子が前記第1の接点と接触してから前記第2の接点と接触する場合との機能を切り替えるスイッチを備える、請求項38に記載の電力供給システム。
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KR (1) | KR20170113549A (ja) |
CN (1) | CN107112747B (ja) |
BR (1) | BR112017015677A2 (ja) |
MY (1) | MY198029A (ja) |
RU (1) | RU2017125968A (ja) |
TW (1) | TWI683485B (ja) |
WO (1) | WO2016121140A1 (ja) |
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CN106898930A (zh) * | 2017-04-28 | 2017-06-27 | 茂硕电源科技股份有限公司 | 一种模块电源的插头及连接器 |
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FR3030105B1 (fr) * | 2014-12-11 | 2017-05-26 | Inst Supergrid | Dispositif de coupure de courant continu haute tension |
JP5862818B1 (ja) | 2015-01-30 | 2016-02-16 | ソニー株式会社 | 電流制限回路、直流電力供給コネクタ及び直流電源装置 |
US10454224B2 (en) * | 2015-02-13 | 2019-10-22 | Sony Corporation | DC power supply connector and DC power source device |
WO2017047463A1 (ja) * | 2015-09-14 | 2017-03-23 | 株式会社オートネットワーク技術研究所 | 通電システム及びオス型の端子 |
JP6646902B2 (ja) * | 2015-09-16 | 2020-02-14 | 嶋田 隆一 | 再起電圧制御装置 |
JP6639958B2 (ja) * | 2016-03-02 | 2020-02-05 | 河村電器産業株式会社 | 直流コンセント装置 |
FR3062513B1 (fr) * | 2017-01-31 | 2021-04-23 | Renault Sas | Dispositif de connexion electrique avec fonction de consignation integree |
US10847970B2 (en) * | 2018-01-19 | 2020-11-24 | Hamilton Sundstrand Corporation | System for and method of controlling inrush current between a power source and a load |
US11114257B2 (en) * | 2018-04-06 | 2021-09-07 | Yazaki North America, Inc. | Methods and apparatus for DC arc detection/suppression |
CN108767837B (zh) * | 2018-08-20 | 2023-10-13 | 深圳市格瑞普智能电子有限公司 | 电源连接方法及电源接头防打火电路及带该电路的电源 |
DE102019135122A1 (de) | 2019-12-19 | 2021-06-24 | Phoenix Contact Gmbh & Co. Kg | Technik zur Vermeidung eines Lichtbogens beim Trennen einer Gleichstromverbindung unter Verwendung einer Verlängerung eines Leitungsverbunds |
DE102019135128A1 (de) | 2019-12-19 | 2021-06-24 | Phoenix Contact Gmbh & Co. Kg | Steckkontaktvorrichtung zur Vermeidung eines Lichtbogens beim Trennen einer Gleichstromverbindung |
US11509130B2 (en) * | 2021-02-10 | 2022-11-22 | Qualcomm Incorporated | Disconnection arc prevention in cable-supplied power connection |
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- 2015-05-26 KR KR1020177019798A patent/KR20170113549A/ko not_active Application Discontinuation
- 2015-05-26 CN CN201580073145.7A patent/CN107112747B/zh active Active
- 2015-05-26 BR BR112017015677-6A patent/BR112017015677A2/ja not_active Application Discontinuation
- 2015-05-26 US US15/545,016 patent/US10910828B2/en active Active
- 2015-05-26 RU RU2017125968A patent/RU2017125968A/ru not_active Application Discontinuation
- 2015-05-26 WO PCT/JP2015/065071 patent/WO2016121140A1/ja active Application Filing
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Also Published As
Publication number | Publication date |
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JP5862818B1 (ja) | 2016-02-16 |
JP2016173984A (ja) | 2016-09-29 |
US20180006447A1 (en) | 2018-01-04 |
US10910828B2 (en) | 2021-02-02 |
RU2017125968A (ru) | 2019-01-23 |
KR20170113549A (ko) | 2017-10-12 |
TWI683485B (zh) | 2020-01-21 |
CN107112747B (zh) | 2019-12-06 |
EP3252882A1 (en) | 2017-12-06 |
TW201633631A (zh) | 2016-09-16 |
CN107112747A (zh) | 2017-08-29 |
BR112017015677A2 (ja) | 2018-03-20 |
JP6641862B2 (ja) | 2020-02-05 |
JP2016174517A (ja) | 2016-09-29 |
MY198029A (en) | 2023-07-26 |
EP3252882A4 (en) | 2018-12-05 |
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