WO2014125685A1 - 回路遮断装置 - Google Patents
回路遮断装置 Download PDFInfo
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- WO2014125685A1 WO2014125685A1 PCT/JP2013/080152 JP2013080152W WO2014125685A1 WO 2014125685 A1 WO2014125685 A1 WO 2014125685A1 JP 2013080152 W JP2013080152 W JP 2013080152W WO 2014125685 A1 WO2014125685 A1 WO 2014125685A1
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- WIPO (PCT)
- Prior art keywords
- connector
- circuit
- main body
- circuit breaker
- state
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/04—Cutting off the power supply under fault conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/50—Charging stations characterised by energy-storage or power-generation means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
- B60L58/13—Maintaining the SoC within a determined range
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
- B60L58/14—Preventing excessive discharging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
- B60L58/15—Preventing overcharging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/25—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by controlling the electric load
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/18—Movable parts; Contacts mounted thereon
- H01H21/22—Operating parts, e.g. handle
- H01H21/30—Operating parts, e.g. handle not biased to return to a normal position upon removal of operating force
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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
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/06—Housings; Casings; Bases; Mountings
- H01H73/08—Plug-in housings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Definitions
- the present invention relates to a circuit breaker.
- This application claims priority based on Japanese Patent Application No. 2013-027081 filed on Feb. 14, 2013, the contents of which are incorporated herein by reference.
- a relay capable of switching between connection and disconnection of a power circuit and an electrical load
- a plug safety plug, service plug
- a contact which can be switched between connection and release depending on the attachment / detachment of the plug.
- a control device that controls opening and closing of a relay in accordance with opening and closing of a contact (see, for example, Patent Documents 1 and 2).
- the aspect according to the present invention has been made in view of the above circumstances, and an object thereof is to provide a circuit breaker capable of appropriately cutting off a circuit while simplifying necessary control.
- a circuit breaker includes a power source, a circuit connected to the power source, a switch capable of switching connection and disconnection between the power source and the circuit, and the power source being cut off.
- the circuit breaker includes a drive unit that switches connection and disconnection between the power source and the circuit according to an energized state, and the circuit breaker is connected to the power source.
- a main body connecting portion having a pair of connected circuit terminals; a connector connecting portion having a pair of connector circuit terminals for energizing the drive portion; and detachable from the main body connecting portion,
- a main body having a short-circuited terminal capable of short-circuiting the pair of circuit terminals in a state of being attached to the connection part, and detachable with respect to the connector connection part, and when attached to the connector connection part, the first Pair of connector times Comprising a connector having a connector short-circuit terminal for short-circuiting the terminals, and a regulating member for regulating the mounting of the connector relative to the connector connecting portion.
- the regulating member is disposed between the connector detached from the connector connecting portion and the connector connecting portion, and contacts the connector displaced toward the connector connecting portion. By doing so, the displacement of the connector may be stopped, and contact with the connector may be released by applying a predetermined external force.
- the connector is rotatable around a fulcrum supported by the main body, and by switching the attachment and detachment with respect to the connector connecting portion, the regulating member is It is supported by the main body so that it can be accommodated inside the main body, and is biased so as to protrude toward the outside of the main body, so that it can contact the connector detached from the connector connecting portion, and the biasing It may be accommodated inside the main body by the external force acting against it.
- the regulating member is housed inside the main body by an external force acting by contact with the connector that rotates in one direction, and the connector that rotates in the other direction. Depending on the external force acting by the contact, the main body may not be accommodated.
- the energization state of the drive unit that drives the switch can be changed in accordance with the attachment / detachment of the connector to / from the connector connection unit, without requiring complicated control or complicated configuration.
- the connection and disconnection between the power source and the circuit can be appropriately switched.
- the restricting member it is possible to prevent the energization state of the drive unit from easily changing. This prevents, for example, an event in which an excessive current flows through the switch due to an easy and easy reconnection immediately after the power source and circuit are switched from connection to disconnection by the switch, for example. Can do.
- the restriction of the restriction member can be released by a predetermined external force, for example, the pressing force of the pressing operation by the operator, and the energization state of the drive unit can be changed easily or automatically. It can be accurately prevented.
- connection and disconnection between the power source and the circuit can be appropriately switched while preventing the configuration from becoming complicated.
- the circuit breaker 10 is provided in the power supply system 1 mounted on, for example, an electric vehicle, and includes a circuit breaker 10a such as a service plug that can cut off power supply from the power supply.
- the power supply system 1 of the present embodiment includes a circuit breaker 10a, a battery 11 (power supply) as a power supply, a 12V battery 12, a traveling motor 13, an inverter 14, and a precharge unit. 18 and a main contactor unit 19 (switch) and a circuit 21 that connects a control unit (ECU) 20 to each other.
- the circuit breaker 10 includes, for example, a circuit breaker 10a, a battery 11, a 12V battery 12, a precharge unit 18 and a main contactor unit 19, and a control device (ECU) 20. .
- the battery 11 is a secondary battery such as a high voltage lithium ion type, and is connected in parallel to the inverter 14 via the main contactor 19.
- the 12V battery 12 is, for example, a low-voltage lead storage battery or the like, and is connected to the drive circuit 19c of the main contactor unit 19 via the circuit breaker 10a.
- the traveling motor 13 is, for example, a U-phase, V-phase, and W-phase three-phase DC brushless motor, and performs a power running operation according to the AC phase current supplied from the inverter 14.
- the traveling motor 13 performs a power generation operation (regenerative operation) by transmitting a driving force from the driving wheel side when the vehicle is decelerated.
- the inverter 14 includes a bridge circuit 14a and a smoothing capacitor 14b formed by bridge connection using a plurality of switching elements such as transistors, for example.
- the inverter 14 turns on (conducts) / offs each switching element that forms a pair for each phase based on a pulse width modulation (PWM) signal output from the control device 20. Switch off.
- PWM pulse width modulation
- the DC power supplied from the battery 11 is converted into three-phase AC power, and the currents of the AC phases are energized by sequentially commutating the energization of the coils of the phases of the traveling motor 13.
- the inverter 14 turns each switching element on (conducting) / off (in response to a gate signal synchronized based on the rotation angle of the rotor of the traveling motor 13 (The AC generated power output from the traveling motor 13 is converted into DC power.
- the precharge unit 18 includes, for example, a precharge contactor 18a and a precharge resistor 18b connected in series, and is connected to both ends of the main contactor 19a on the positive electrode side (that is, in parallel to the main contactor 19a).
- the main contactor unit 19 includes, for example, a positive side main contactor 19a, a negative side main contactor 19b, and a drive circuit 19c.
- the main contactor 19a on the positive electrode side is connected to the positive electrode terminal of the battery 11 in the high voltage line (HV +) on the positive electrode side.
- the main contactor 19b on the negative electrode side is connected to the negative electrode terminal of the battery 11 in the high voltage line (HV ⁇ ) on the negative electrode side.
- the main contactors 19a and 19b are, for example, electromagnetic switches and include a coil connected to the drive circuit 19c.
- the main contactors 19a and 19b are connected by the electromagnetic force generated in the coil 19d (driving unit) by energization from the drive circuit 19c, and the energization from the drive circuit 19c to the coil 19d is stopped and the electromagnetic force is generated. If not, it will be open (shut off).
- the drive circuit 19c is connected to the 12V battery 12 through the circuit breaker 10a, and is connected to the coils 19d of the main contactors 19a and 19b and the control device 20.
- the drive circuit 19c can supply power to the coils 19d of the main contactors 19a and 19b using the 12V battery 12 as a power source in accordance with the control of the control device 20 or the like.
- a control device 20 controls the operation of the power supply system 1 based on the inter-terminal voltage VB and current ISOC of the battery 11 and the inter-terminal voltage VPIN on the primary side of the inverter 14. For this reason, the control device 20 receives the detection result signals output from the voltage sensors 31 and 32 that detect the inter-terminal voltages VB and VPIN and the detection results output from the current sensor 35 that detects the current ISOC. Signal.
- the control device 20 is supplied with power from the 12V battery 12 by a circuit (not shown) other than the drive circuit 19c of the main contactor 19.
- the circuit breaker (service plug) 10a includes a base portion 41, a main body 42 that can be attached to and detached from the main body connecting portion 41a of the base portion 41, and a connector connecting portion 41b of the base portion 41. And a connector 43 that can be attached to and detached from each other, and a lock mechanism 44.
- the main body connection portion 41 a of the base portion 41 includes a pair of circuit terminals 41 ap and 41 an connected to the positive electrode side and the negative electrode side at the middle point of the battery 11 or the like.
- the connector connecting portion 41b of the base portion 41 includes a pair of connector circuit terminals 41bp and 41bn connected to the positive terminal of the 12V battery 12 and the drive circuit 19c of the main contactor portion 19.
- the main body 42 includes a short-circuit terminal 42a that can short-circuit the pair of circuit terminals 41ap and 41an of the main body connection portion 41a of the base portion 41.
- the connector 43 includes a connector short-circuit terminal 43a capable of short-circuiting a pair of connector circuit terminals 41bp and 41bn of the connector connection portion 41b of the base portion 41.
- the connector 43 is supported by the main body 42 at a fulcrum 43b, for example, and can be rotated around the fulcrum 43b.
- the connector 43 is formed to be switchable between connection and release between the pair of connector circuit terminals 41bp and 41bn of the connector connection portion 41b and the connector short-circuit terminal 43a by turning around the fulcrum 43b. Further, the connector 43 is formed to be switchable between connection and release between the pair of circuit terminals 41ap and 41an of the main body connection portion 41a and the short-circuit terminal 42a by turning around the fulcrum 43b.
- the connector 43 changes the state of the circuit breaker (service plug) 10a into, for example, a first state shown in FIG. 2A, a second state shown in FIG. 2B, and a third state shown in FIG. Switch to state.
- the first state is a state in which the main body 42 is attached to the main body connection portion 41a, and the pair of circuit terminals 41ap and 41an are short-circuited by the short-circuit terminal 42a, and the connector 43 is attached to the connector connection portion 41b.
- the pair of connector circuit terminals 41bp and 41bn are short-circuited by the connector short-circuit terminal 43a.
- the second state is 1 when the pair of circuit terminals 41ap and 41an are short-circuited by the short-circuit terminal 42a and the connector 43 is detached from the connector-connection portion 41b in a state where the main body 42 is attached to the main-body connection portion 41a.
- the pair of connector circuit terminals 41bp and 41bn and the connector short-circuit terminal 43a are open.
- the third state is a state in which the main body 42 is connected to the main body connection portion 41a of the base portion 41, the pair of circuit terminals 41ap and 41an and the short-circuit terminal 42a are opened, and the pair of connectors of the connector connection portion 41b.
- the circuit terminals 41bp and 41bn and the connector short-circuit terminal 43a are open.
- the connector 43 changes the state of the circuit breaker (service plug) 10a from the first state to the third state via the second state or from the third state to the second state.
- the transition to the first state can be made.
- the locking mechanism 44 protrudes outward from the main body 42, for example, and applies a resilient force to the claw portion 44a (regulation member) that can regulate the rotation around the fulcrum 43b of the connector 43, and the claw portion 44a.
- An urging member (not shown) such as a spring for projecting the claw portion 44a outward from the main body 42 is provided.
- the claw portion 44a is formed so as to be able to contact the connector 43 when the circuit breaker (service plug) 10a is in the second state while protruding outward from the main body 42.
- the claw portion 44a contacts the connector 43 that rotates around the fulcrum 43b so as to change the state of the circuit breaker (service plug) 10a from the first state to the third state or from the third state to the first state.
- the claw portion 44a is formed so as to be housed inside the main body 42 when an external force that resists the elastic force applied by the urging member is applied. Thereby, when the claw part 44a is accommodated in the main body 42, the contact between the claw part 44a and the connector 43 is released.
- the claw portion 44a is applied by a pressing force that accommodates the claw portion 44a in the main body 42 (that is, by a biasing member). Force to resist the elastic force being applied) is applied from the connector 43.
- the connector 43 that rotates around the fulcrum 43b from the third state toward the first state comes into contact, the pressing force for accommodating the claw portion 44a in the main body 42 is not applied from the connector 43. Has been.
- the circuit breaker 10 of the present embodiment has the above-described configuration.
- the circuit breaker operation of the power supply system 1 including the circuit breaker 10 will be described.
- IG-OFF ignition switch
- the operation of the power supply system 1 at the normal time when the circuit breaker (service plug) 10a is switched from the connected state to the disconnected state by the user's operation will be described.
- step S01 shown in FIG. 3 the connector 43 attached to the connector connecting portion 41b of the base portion 41 is rotated around the fulcrum 43b by the operation of the operator, so that it is detached from the connector connecting portion 41b. Is done. Then, the pair of connector circuit terminals 41bp and 41bn and the connector short-circuit terminal 43a of the connector connection portion 41b are switched from connection (ON) to release (OFF). As a result, the state of the circuit breaker (service plug) 10a transitions from the first state to the second state as shown in FIG.
- the connector 43 accommodates the pressing force for accommodating the claw portion 44a inside the main body 42 (that is, the force resisting the elastic force applied to the claw portion 44a from the biasing member). ) On the claw portion 44a, the claw portion 44a is accommodated in the main body 42, and the rotation can be continued.
- step S02 shown in FIG. 3 the connection between the 12V battery 12 and the drive circuit 19c of the main contactor 19 is cut off.
- step S03 the main contactors 19a and 19b of the main contactor 19 are opened (blocked).
- step S04 the stop process of the control device 20 is started, and the charge of the smoothing capacitor 14b of the inverter 14 is discharged by the control of the control device 20.
- step S05 the connector 43 is rotated around the fulcrum 43b by the operator's operation, so that the pair of circuit terminals 41ap and 41an of the main body connection portion 41a and the short-circuit terminal 42a are connected (ON). It is switched to open (OFF). As a result, the state of the circuit breaker (service plug) 10a transitions from the second state to the third state as shown in FIG. Then go to the end. At this time, the control device 20 has completed the stop process, and the control device 20 is in a stopped state.
- step S01 to step S05 After the processing from step S01 to step S05 is executed, when the main body 42 is detached from the main body connecting portion 41a of the base portion 41 by the operator, the state of the circuit breaker (service plug) 10a is as shown in FIG. To the fourth state from the third state. When the operator attaches the main body 42 to the main body connection portion 41a of the base portion 41, the state of the circuit breaker (service plug) 10a changes from the fourth state to the third state.
- the state of the circuit breaker (service plug) 10a changes from the third state to the second state. Then, the pair of circuit terminals 41ap and 41an and the short-circuit terminal 42a of the main body connection portion 41a are switched from open (OFF) to connection (ON). At this time, when the connector 43 comes into contact with the claw portion 44a, the connector 43 cannot accommodate the claw portion 44a inside the main body 42, and the rotation of the connector 43 is stopped.
- the connector 43 becomes rotatable.
- the state of the circuit breaker (service plug) 10a changes from the second state to the first state. To do.
- the control device 20 is activated and controls the precharge unit 18 to execute a predetermined precharge operation prior to switching the main contactors 19a and 19b from the open (blocked) state to the connected state.
- the circuit breaker (service plug) 10a is operated by the operation of the operator in the state where the power system 1 is operated by, for example, turning on an ignition switch (IG-ON) of a vehicle on which the power system 1 is mounted.
- IG-ON ignition switch
- the connector 43 attached to the connector connecting portion 41b of the base portion 41 in the operating state of the power supply system 1 is rotated around the fulcrum 43b by the operation of the operator.
- the connector connection portion 41b is detached, the energization of the drive circuit 19c is stopped.
- the state of the circuit breaker (service plug) 10a transitions from the first state to the second state as shown in FIG.
- the connector 43 accommodates the pressing force for accommodating the claw portion 44a inside the main body 42 (that is, the force resisting the elastic force applied to the claw portion 44a from the biasing member).
- the claw portion 44a On the claw portion 44a, the claw portion 44a is accommodated in the main body 42, and the rotation can be continued.
- the main contactors 19a and 19b are switched from the connected state to the open (shut off) state due to the stop of energization of the drive circuit 19c, and the energization of the main contactors 19a and 19b is stopped. Is done. And the stop process of the control apparatus 20 is started, and the electric charge of the smoothing capacitor 14b of the inverter 14 is discharged by control of the control apparatus 20.
- the state of the circuit breaker (service plug) 10a is as shown in FIG. Transition from the third state to the fourth state.
- the state of the circuit breaker (service plug) 10a changes from the fourth state to the third state.
- the connector 43 is reattached to the connector connecting portion 41b immediately after the connector 43 is detached from the connector connecting portion 41b by the operator's operation. May be.
- the state of the circuit breaker (service plug) 10a is changed from the first state to the second state as shown in FIG. Transition is made and the energization of the drive circuit 19c is stopped.
- the connector 43 rotates around the fulcrum 43b so as to get over the claw 44a while pushing the claw 44a into the main body 42.
- the main contactors 19a and 19b are switched from the connected state to the open (shut off) state due to the stop of energization of the drive circuit 19c, and the energization of the main contactors 19a and 19b is stopped. Is done. And the stop process of the control apparatus 20 is started, and the electric charge of the smoothing capacitor 14b of the inverter 14 is discharged by control of the control apparatus 20.
- control device 20 has completed the stop process, and the control device 20 is in a stopped state.
- the control device 20 is activated when the connector 43 is reattached to the connector connecting portion 41b, and controls the precharge portion 18 prior to switching the main contactors 19a, 19b from the open (shut off) state to the connected state.
- a predetermined precharge operation is activated when the connector 43 is reattached to the connector connecting portion 41b, and controls the precharge portion 18 prior to switching the main contactors 19a, 19b from the open (shut off) state to the connected state.
- the connector 43 is detached from the connector connecting portion 41b by providing the claw portion 44a capable of stopping the rotation of the connector 43 and releasing the rotation stop of the connector 43 by an operator's pressing operation, Immediately, the connector 43 is prohibited from being reattached to the connector connecting portion 41b. Thereby, the stop process of the control device 20 executed after the main contactors 19a and 19b are opened (shut off) can be completed. And after the connector 43 is reattached to the connector connection part 41b, the predetermined
- connection and release (cutoff) of the main contactors 19a and 19b can be switched according to the attachment / detachment of the connector 43 to / from the connector connecting portion 41b, which is complicated.
- the connection and disconnection between the battery 11 and the circuit 21 can be appropriately switched without requiring a simple control or a complicated configuration.
- the claw portion 44a it is possible to prevent the connector 43 from being easily reattached to the connector connecting portion 41b. Thereby, for example, the stop process of the control device 20 executed after the main contactors 19a, 19b are opened (shut off) can be completed.
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Abstract
Description
本願は、2013年2月14日に出願された日本国特願2013-027081号に基づき優先権を主張し、その内容をここに援用する。
(1)本発明に係る一態様の回路遮断装置は、電源と、前記電源に接続された回路と、前記電源と前記回路との接続および遮断を切り替え可能な開閉器と、前記電源を遮断可能な遮断器と、を備える回路遮断装置であって、前記開閉器は、前記電源と前記回路との接続および遮断を、通電状態に応じて切り替える駆動部を備え、前記遮断器は、前記電源に接続された1対の回路端子を有する本体接続部と、前記駆動部に対する通電に係る1対のコネクタ回路端子を有するコネクタ接続部と、前記本体接続部に対して着脱可能であって、前記本体接続部に装着された状態で前記1対の回路端子を短絡可能な短絡端子を有する本体と、前記コネクタ接続部に対して着脱可能であって、前記コネクタ接続部に装着されたときに前記1対のコネクタ回路端子を短絡するコネクタ短絡端子を有するコネクタと、前記コネクタ接続部に対する前記コネクタの装着を規制する規制部材と、を備える。
さらに、規制部材を設けることによって、駆動部の通電状態が安易に変化することを防止することができる。これによって、例えば開閉器によって電源と回路とが接続から遮断へと切り替えられた後に直ちに安易に再接続されることによって開閉器に過大な電流が流れてしまう事象などが発生することを防止することができる。
本実施形態の回路遮断装置10は、例えば電動車両などに搭載された電源システム1に備えられ、例えば電源からの給電を遮断可能なサービスプラグなどの遮断器10aを備えている。
本実施形態の電源システム1は、例えば図1に示すように、遮断器10aと、電源としてのバッテリ11(電源)と、12Vバッテリ12と、走行用モータ13と、インバータ14と、プリチャージ部18およびメインコンタクタ部19(開閉器)と、制御装置(ECU)20と、を接続する回路21によって構成されている。
なお、回路遮断装置10は、例えば、遮断器10aと、バッテリ11と、12Vバッテリ12と、プリチャージ部18およびメインコンタクタ部19と、制御装置(ECU)20と、を備えて構成されている。
12Vバッテリ12は、例えば低圧の鉛蓄電池などであり、遮断器10aを介してメインコンタクタ部19の駆動回路19cに接続されている。
メインコンタクタ部19は、例えば正極側のメインコンタクタ19aと、負極側のメインコンタクタ19bと、駆動回路19cと、によって構成されている。
正極側のメインコンタクタ19aは正極側の高圧ライン(HV+)においてバッテリ11の正極端子に接続されている。負極側のメインコンタクタ19bは負極側の高圧ライン(HV-)においてバッテリ11の負極端子に接続されている。メインコンタクタ19a,19bは、例えば電磁開閉器であり、駆動回路19cに接続されたコイルを備えている。メインコンタクタ19a,19bは、駆動回路19cからの通電によってコイル19d(駆動部)で発生する電磁力によって接続状態になり、駆動回路19cからコイル19dへの通電が停止して電磁力が発生していない場合に開放(遮断)状態になる。
駆動回路19cは、遮断器10aを介して12Vバッテリ12に接続されているとともに、メインコンタクタ19a,19bのコイル19dおよび制御装置20に接続されている。駆動回路19cは、12Vバッテリ12を電源として、制御装置20の制御などに応じて、メインコンタクタ19a,19bのコイル19dに電力供給可能である。
このため、制御装置20には、各端子間電圧VB,VPINを検出する各電圧センサ31,32から出力される検出結果の信号と、電流ISOCを検出する電流センサ35から出力される検出結果の信号とが入力されている。なお、制御装置20は、メインコンタクタ部19の駆動回路19c以外の図示しない回路によって12Vバッテリ12から電源供給されている。
本体42は、ベース部41の本体接続部41aの1対の回路端子41ap,41anを短絡可能な短絡端子42aを備えている。
第1状態は、本体42が本体接続部41aに装着された状態で、1対の回路端子41ap,41anが短絡端子42aによって短絡され、かつコネクタ43がコネクタ接続部41bに装着されることによって1対のコネクタ回路端子41bp,41bnがコネクタ短絡端子43aによって短絡された状態である。
第2状態は、本体42が本体接続部41aに装着された状態で、1対の回路端子41ap,41anが短絡端子42aによって短絡され、かつコネクタ43がコネクタ接続部41bから脱着されることによって1対のコネクタ回路端子41bp,41bnとコネクタ短絡端子43aとが開放された状態である。
第3状態は、本体42がベース部41の本体接続部41aに接続された状態で、1対の回路端子41ap,41anと短絡端子42aとが開放され、かつコネクタ接続部41bの1対のコネクタ回路端子41bp,41bnとコネクタ短絡端子43aとが開放された状態である。
コネクタ43は、支点43b周りの回動によって、遮断器(サービスプラグ)10aの状態を、第1状態から第2状態を経由して第3状態へと、または第3状態から第2状態を経由して第1状態へと遷移させることができる。
なお、第3状態において本体42がベース部41の本体接続部41aから脱着されると、図2Dに示す第4状態となる。
爪部44aは、本体42から外部に向かい突出した状態で遮断器(サービスプラグ)10aが第2状態である場合にコネクタ43に接触可能に形成されている。つまり、爪部44aは、遮断器(サービスプラグ)10aの状態を第1状態から第3状態または第3状態から第1状態へと遷移させるようにして支点43b周りに回動するコネクタ43に接触する。爪部44aは、付勢部材によって付与されている弾性的な力に抗う外力が付与された場合に本体42の内部に収容可能に形成されている。これによって、爪部44aが本体42の内部に収容された場合には、爪部44aとコネクタ43との接触は解除される。
これらによって、コネクタ43が第1状態から第3状態に向かって支点43b周りに回動する場合には、コネクタ43に接触した爪部44aは、いわば自動的に本体42の内部に収容され、コネクタ43の回動は継続可能である。一方、コネクタ43が第3状態から第1状態に向かって支点43b周りに回動する場合には、コネクタ43に接触した爪部44aは、自動的には本体42の内部に収容されず、コネクタ43の回動は停止させられる。この場合には、例えば操作者による爪部44aの押圧操作などによって爪部44aに外力が付与されることによって、いわば手動的に本体42の内部に収容され、コネクタ43の回動が継続可能になる。
先ず、以下に、例えば電源システム1を搭載する車両のイグニッションスイッチのオフ(IG-OFF)などによって電源システム1の停止が指示された場合、または電源システム1が既に停止している状態において、操作者の操作によって遮断器(サービスプラグ)10aが接続状態から遮断状態へと切り替えられる正常時の電源システム1の動作について説明する。
そして、ステップS03においては、メインコンタクタ部19のメインコンタクタ19a,19bが開放(遮断)状態になる。
そして、ステップS05においては、操作者の操作によってコネクタ43が支点43b周りに回動させられることによって、本体接続部41aの1対の回路端子41ap,41anと短絡端子42aとが接続(ON)から開放(OFF)に切り替えられる。これによって、遮断器(サービスプラグ)10aの状態は、図4に示すように、第2状態から第3状態へと遷移する。そして、エンドに進む。なお、この時点において、制御装置20は停止処理を完了しており、制御装置20は停止状態になる。
そして、操作者によって本体42がベース部41の本体接続部41aに装着されると、遮断器(サービスプラグ)10aの状態は第4状態から第3状態へと遷移する。
そして、制御装置20の停止処理が開始され、制御装置20の制御によってインバータ14の平滑コンデンサ14bの電荷が放電される。
そして、操作者によって本体42がベース部41の本体接続部41aに装着されると、遮断器(サービスプラグ)10aの状態は第4状態から第3状態へと遷移する。
この場合、先ず、操作者の操作によってコネクタ43がコネクタ接続部41bから脱着されると、遮断器(サービスプラグ)10aの状態が、図6に示すように、第1状態から第2状態へと遷移し、駆動回路19cの通電は停止される。このとき、コネクタ43は、爪部44aを本体42の内部に押し込みつつ爪部44aを乗り越えるようにして、支点43b周りに回動する。
そして、操作者による爪部44aの押圧操作によって爪部44aが本体42の内部に収容されるとコネクタ43は回動可能になり、この状態でコネクタ43が操作者の操作によって支点43b周りに回動させられることによってコネクタ43がコネクタ接続部41bに再装着される。なお、この時点において、制御装置20は停止処理を完了しており、制御装置20は停止状態になっている。制御装置20は、コネクタ43がコネクタ接続部41bに再装着されると起動して、メインコンタクタ19a,19bを開放(遮断)状態から接続状態に切り替えることに先立って、プリチャージ部18を制御して所定のプリチャージ動作を実行する。
さらに、爪部44aを設けることによって、コネクタ43がコネクタ接続部41bに安易に再装着されることを防止することができる。これによって、例えばメインコンタクタ19a,19bが開放(遮断)された後に実行される制御装置20の停止処理を完了させることができる。そして、メインコンタクタ19a,19bによってバッテリ11と回路21とが接続から遮断へと切り替えられた後に直ちに安易に再接続されることによって、メインコンタクタ19a,19bに過大な電流が流れてしまう事象などが発生することを防止することができる。
Claims (4)
- 電源と、前記電源に接続された回路と、前記電源と前記回路との接続および遮断を切り替え可能な開閉器と、前記電源を遮断可能な遮断器と、を備える回路遮断装置であって、
前記開閉器は、前記電源と前記回路との接続および遮断を、通電状態に応じて切り替える駆動部を備え、
前記遮断器は、
前記電源に接続された1対の回路端子を有する本体接続部と、
前記駆動部に対する通電に係る1対のコネクタ回路端子を有するコネクタ接続部と、
前記本体接続部に対して着脱可能であって、前記本体接続部に装着された状態で前記1対の回路端子を短絡可能な短絡端子を有する本体と、
前記コネクタ接続部に対して着脱可能であって、前記コネクタ接続部に装着されたときに前記1対のコネクタ回路端子を短絡するコネクタ短絡端子を有するコネクタと、
前記コネクタ接続部に対する前記コネクタの装着を規制する規制部材と、を備える、ことを特徴とする回路遮断装置。 - 前記規制部材は、
前記コネクタ接続部から脱着された前記コネクタと前記コネクタ接続部との間に配置され、前記コネクタ接続部に向かい変位する前記コネクタに接触することによって前記コネクタの変位を停止させ、
所定の外力が作用することによって前記コネクタとの接触が解除される、ことを特徴とする請求項1に記載の回路遮断装置。 - 前記コネクタは、前記本体によって支持された支点周りに回動可能であり、該回動によって前記コネクタ接続部に対する装着および脱着を切り替え、
前記規制部材は、前記本体の内部に収容可能に前記本体に支持され、前記本体の外部に向かい突出するように付勢されることによって、前記コネクタ接続部から脱着された前記コネクタに接触可能とされ、前記付勢に抗う前記外力が作用することによって前記本体の内部に収容される、ことを特徴とする請求項2に記載の回路遮断装置。 - 前記規制部材は、一方向に回動する前記コネクタとの接触によって作用する外力によって前記本体の内部に収容され、他方向に回動する前記コネクタとの接触によって作用する外力によっては前記本体の内部に収容されない、ことを特徴とする請求項3に記載の回路遮断装置。
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Publication number | Priority date | Publication date | Assignee | Title |
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EP4124498A1 (en) * | 2021-07-26 | 2023-02-01 | Samsung SDI Co., Ltd. | Relay control system and battery system |
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JPWO2014125685A1 (ja) | 2017-02-02 |
US9646791B2 (en) | 2017-05-09 |
JP5848849B2 (ja) | 2016-01-27 |
US20160042900A1 (en) | 2016-02-11 |
CN104781900B (zh) | 2016-12-28 |
CN104781900A (zh) | 2015-07-15 |
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