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WO2022119329A1 - Relay switch for bidirectional charger/discharger - Google Patents

Relay switch for bidirectional charger/discharger Download PDF

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Publication number
WO2022119329A1
WO2022119329A1 PCT/KR2021/018057 KR2021018057W WO2022119329A1 WO 2022119329 A1 WO2022119329 A1 WO 2022119329A1 KR 2021018057 W KR2021018057 W KR 2021018057W WO 2022119329 A1 WO2022119329 A1 WO 2022119329A1
Authority
WO
WIPO (PCT)
Prior art keywords
fixed
link
relay switch
unit
discharger
Prior art date
Application number
PCT/KR2021/018057
Other languages
French (fr)
Korean (ko)
Inventor
김형태
이규훈
Original Assignee
주식회사 코리아시뮬레이터
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 코리아시뮬레이터 filed Critical 주식회사 코리아시뮬레이터
Publication of WO2022119329A1 publication Critical patent/WO2022119329A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • 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]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
    • H02M3/325—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
    • H02M3/325—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33569—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
    • H02M3/33576—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
    • H02M3/33584—Bidirectional converters
    • 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
    • B60L2210/00—Converter types
    • B60L2210/10—DC to DC converters
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/92—Hybrid vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/026—Car
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • 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
    • Y02T10/62—Hybrid vehicles
    • 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
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
    • Y04S10/126—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]

Definitions

  • the present invention relates to a relay switch for a two-way charger/discharger, and more particularly, to a relay switch for a two-way charger/discharger capable of charging or discharging a battery of an electrically drivable hybrid vehicle or an electric vehicle from a low voltage to a high voltage.
  • Electric vehicles include an Electric Vehicle (EV), which is a pure electric vehicle, a Hybrid Electric Vehicle (HEV), which is a hybrid vehicle, and a Plug-in Hybrid Electric Vehicle (PHEV), which is a rechargeable hybrid vehicle.
  • EV Electric Vehicle
  • HEV Hybrid Electric Vehicle
  • PHEV Plug-in Hybrid Electric Vehicle
  • an object of the present invention is to provide a relay switch of a bidirectional charger and discharger having a link structure that can ensure the durability of a relay switch to which a high voltage is applied or blocked in the bidirectional charger and discharger.
  • the relay switch includes: a fixed electrode unit comprising an insulating body and a pair of fixed electrodes spaced apart from each other by a predetermined distance in a fixed electrode mounting groove formed in the insulating body and mounted on both sides; a link unit mounted on the fixed electrode unit to rotate the connecting electrode unit so that the fixed electrodes of the fixed electrode unit are connected or opened to each other; and a connection electrode unit mounted on the link unit to connect or open the fixed electrodes of the fixed electrode unit to each other.
  • the link unit includes: a fixed link unit in which a pair is fixedly mounted in a form corresponding to each other spaced apart by a predetermined distance so that the center is opened to the insulating body; a main link part that is split from the upper side to both sides and extends to the lower side, and the lower end is connected to the lower side so as to be rotatable on the front lower side of the fixed link part; a handle formed of an insulator on the upper side of the main link part; An upper end of the intermediate link portion is rotatably connected to the inner side of the main link portion and the lower end of the rotary link is rotatably connected; And the rear end is rotatably connected to the rear upper side of the fixed link portion, the connection electrode is fixedly mounted on the front end, the rotating link portion is rotatably connected to the lower end of the intermediate link portion at a portion passing through the main link portion; characterized.
  • the connecting electrode unit is characterized in that it is composed of a connecting electrode insulating body to which the rotating link unit of the link unit is fixed, and a connecting electrode mounted on a bottom surface of the connecting electrode insulating body.
  • the main link is driven by the user's physical force or is characterized in that it is driven by an actuator.
  • the relay switch of the bidirectional charger/discharger according to the present invention has the advantage of excellent durability because the link structure is simple.
  • the relay switch of the bidirectional charger/discharger according to the present invention has the advantage that the possibility of failure is low due to the simplicity of the link structure.
  • the relay switch of the bidirectional charger/discharger according to the present invention has the advantage of safely transferring the high voltage supplied through the charger/discharger to the battery.
  • FIG. 1 is a structural diagram of a bidirectional charger/discharger provided with a relay switch according to the present invention.
  • FIG. 2 is a perspective view of a relay switch of a bidirectional charger/discharger according to the present invention.
  • FIG. 3 is an exploded perspective view of a relay switch of a bidirectional charger/discharger according to the present invention.
  • FIG. 4 is a perspective view of a link part of a relay switch of a bidirectional charger/discharger according to the present invention.
  • FIG. 5 is a perspective view of a state in which a part of the link part of the relay switch of the bidirectional charger/discharger according to the present invention is removed.
  • FIG. 6 is a perspective view of a connection electrode part of a relay switch of a bidirectional charger/discharger according to the present invention.
  • connection electrode and a fixed electrode are connected to each other and power is applied in the relay switch of the bidirectional charger/discharger according to the present invention.
  • FIG. 8 is a diagram illustrating a series and parallel connection of DC power using a relay switch of a bidirectional charger/discharger according to the present invention.
  • FIG. 1 is a structural diagram of a bidirectional charger/discharger provided with a relay switch according to the present invention
  • FIG. 2 is a perspective view of a relay switch of a bidirectional charger/discharger according to the present invention
  • FIG. 3 is a relay switch of a bidirectional charger/discharger according to the present invention It is an exploded perspective view
  • FIG. 4 is a perspective view of the link part of the relay switch of the bidirectional charger/discharger according to the present invention
  • FIG. 5 is a perspective view of a state in which a part of the link part of the relay switch of the bidirectional charger/discharger according to the present invention is removed
  • FIG. 7 is a current flow diagram showing that the connection electrode and the fixed electrode are connected to each other and power is applied in the relay switch of the bidirectional charger/discharger according to the present invention.
  • FIG. 8 is a configuration diagram illustrating a series and parallel connection of DC power using a relay switch of a bidirectional charger/discharger according to the present invention.
  • FIG. 1 is a structural diagram of a bidirectional charger/discharger provided with a relay switch according to the present invention.
  • the structure of the bidirectional charger and discharger includes a three-phase AC power inlet (1) to which three-phase AC power is applied, and a breaker initial charging power filter (2) provided after the three-phase AC power is connected in parallel. and AC/DC converter unit 3 that converts AC power passing through power filter 2 into DC power, and converts DC power converted by AC/DC converter unit 3 into DC power suitable for electric vehicles
  • a DC/DC converter unit 4, which is connected to the DC/DC converter unit 4, and a switching unit 5 for connecting DC power suitable for an electric vehicle in series or parallel, and switching It consists of a DC circuit breaker (6) connected to the part (5).
  • a battery is connected to the DC circuit breaker (6).
  • the breaker initial charging power filter (2) connected between the AC power inlet (1) and the AC/DC converter (3) performs a function of removing harmonics of the AC power applied to the AC power inlet (1).
  • the power filter 2 can be combined with a single L method, LC, LCD, etc., depending on the amount of harmonics, and a noise filter for reducing noise and a transformer for insulation may be included.
  • the AC/DC converter unit 3 receives AC power, converts it into DC power, and outputs it.
  • the DC power converted by the AC/DC converter unit 3 is applied to the DC/DC converter unit 4, and the DC/DC converter unit 4 converts it into DC power suitable for charging the battery of the electric vehicle.
  • the DC power converted by the DC/DC converter unit 4 is connected in series or parallel in the switching unit 5 and output to the DC circuit breaker 6 .
  • the switching unit 5 is composed of a relay switch 50, and the relay switch 50 is composed of three and outputs a low voltage to a high voltage with the DC circuit breaker 6 in series or in parallel.
  • the relay switch 50 has the fixed electrode unit 51 and the fixed electrode unit 51 fixed to the fixed electrode unit 51 and the connecting electrode unit 53 to connect or open the fixed electrode unit 51 and the connecting electrode unit 53 to each other. It consists of a link part 52 to be made and a connection electrode part 53 fixed to one end of the link part 52 .
  • the fixed electrode part 51 includes an insulating body 511 and a pair of fixed electrodes on which a pair of fixed electrodes 512: 512a, 512b formed on the insulating body 511 are seated. It protrudes and is fixed between the seating grooves 513: 513a, 513b, a pair of fixed electrodes 512: 512a, 512b seated in the fixed electrode seating groove 513, and a pair of fixed electrode seating grooves 513 It consists of a spacer protrusion 514 for separating the electrodes 512 from each other, and a fixed link part seating groove 515 in which the fixed link part 521 of the link part 52 is seated and fixed.
  • the pair of fixed electrodes 512 includes a fixed electrode 512a on one side and a fixed electrode 512b on the other side
  • the pair of fixed electrode seating grooves 513 includes a fixed electrode seating groove 513a on one side and a fixed electrode seating groove on the other side. It consists of a groove (513b).
  • the link portion 52 is spaced apart by a predetermined distance so that the center is opened to the insulating body 511 and a pair of fixed link portions 521 are fixedly mounted in a form corresponding to each other, and
  • the main link part 522 fixedly mounted on the link part 521 , the handle 523 formed of an insulator on the upper side of the main link part 522 , and the main link part 522 are rotated inside the main link part 522 .
  • It consists of an intermediate link part 524 mounted so as to be possible, and a fixed link part 521 and a rotation link part 525 mounted so that the rear side is rotatably mounted on the intermediate link part 524 .
  • the main link part 521 is made of one main link bar 5221a and the other main link bar 5221b extending to both sides from the lower end of the handle 523, and each lower end is
  • the fixed link portion 521 is rotatably mounted with a hinge 5222 so that one main link bar 5221a and the other main link bar 5221b are installed to be spaced apart from each other by a predetermined interval.
  • the intermediate link portion 524 is connected to the upper side of the separation space between the main link bar 5221a on one side and the main link bar 5221b on the other side by a hinge 5223 so as to be rotatably mounted.
  • the fixed link unit 521 will be described with reference to FIGS. 4 and 5 .
  • the fixed link portion 521 has the same shape or a shape corresponding to the left and right sides.
  • the fixed link unit 521 includes a fixed connecting plate 5211 formed at the lower part and a hinge connecting plate 5212 formed by bending the fixed connecting plate 5211 to the upper part, and the fixed link unit 521 is It is fixedly mounted in the fixing link part seating groove 515 of the fixed electrode part 51 . That is, one fixed connecting plate 5211a and the other fixed connecting plate 5211b are fixedly mounted in the fixed link part seating groove 515 .
  • one hinge connecting plate 5212a and the other fixed connecting plate 5211b formed by bending upward from the inside of the one fixed connecting plate 5211a are bent upward to face each other with the one hinge connecting plate 5212a from the inside of the other fixed connecting plate 5211b.
  • the other side hinge connection plate 5212b is formed.
  • the one hinge connecting plate 5212a and the other hinge connecting plate 5212b have a triangular shape with chamfered corners and are inclined forward.
  • the lower end of the main link part 522 is rotatably connected to the front lower side of the one hinge connecting plate 5212a and the other hinge connecting plate 5212b by a hinge 5222, and the rotating link unit 525 is provided on the rear upper side. It is rotatably connected by a hinge 5213 .
  • the intermediate link unit 524 will be described with reference to FIGS. 4 and 5 .
  • the intermediate link unit 524 includes an intermediate link front bar 5241 formed in the front, a rear middle link formed in the rear from both sides of the front bar 5241 and one rear bar 5242a of the middle link extending up and down, and the other rear of the intermediate link. It consists of a bar (5242b).
  • the upper ends of the intermediate link one rear bar 5242a and the other rear bar 5242b are rotatably connected to the one main link bar 5221a and the other main link bar 5221b by a hinge 5223, and the middle link one rear side
  • the lower ends of the bar 5242a and the other rear bar 5242b are connected to the rotation link 525 by a hinge 5243 to be rotatable.
  • the rotary link unit 525 will be described with reference to FIGS. 4 and 5 .
  • a rear end of the rotary link unit 525 is rotatably connected to the fixed link unit 521 by a hinge 5213 and a connection electrode unit 53 is fixed at the front end.
  • the rotating link unit 525 is a rotating link bar having a rear end connected to a hinge 5213 so as to be rotatable between one hinge connecting plate 5212a and the other hinge connecting plate 5212b of the fixed link unit 521 ( 5252 and a connecting electrode mounting bar 5251 so that the connecting electrode part 53 can be fixedly mounted in front of the rotating link bar 5252 .
  • the rear end of the rotary link bar 5252 is rotatably connected to the fixed link portion 521 by a hinge 5213 , and the central side is rotatable by a hinge 5243 to the rear bars 5242a and 5242b of the intermediate link 524 .
  • the rotation link unit 525 when the handle 523 is placed backward, the force acting on the handle is transmitted to the intermediate link unit 524, and the intermediate link unit 524 is the rotation link unit.
  • the force to lift (525) is transmitted. Accordingly, when the handle 523 is rotated, the rotation link unit 525 is rotated about the hinge 5213 as a rotation axis.
  • connection electrode part 53 shows the connection electrode part 53 .
  • the connecting electrode part 53 is composed of a connecting electrode insulating body 531 and a connecting electrode 532 mounted on the bottom surface of the connecting electrode insulating body, and the connecting electrode insulating body 531 includes a rotating link part 525 .
  • the connecting electrode mounting bar 5251 is fixedly mounted. Accordingly, the connection electrode 532 rotates together as the rotation link part 525 rotates.
  • FIG. 7 shows a state in which one fixed electrode 512a and the other fixed electrode 512b are energized with each other by the connection electrode 532 . Since it is bidirectional, the current can flow as shown in the current drawing or vice versa. If the handle 523 is rotated backward, the connecting electrode 532 is rotated to open the fixed electrodes to each other.
  • FIG. 8 shows a method of connecting in series or parallel using three relay switches 50a, 50b, and 50c.
  • FIG. 8( a ) only the central relay switch 50b allows current to flow, and accordingly, a pair of DC/DC converters 4 are connected in series, and a high voltage can be applied to the DC circuit breaker 6 .
  • 8(b) shows a state in which only the central relay switch 50b is opened. When only the central relay switch 50b is opened, the DC/DC converter 4 is connected in parallel, so that a low voltage can be applied to the DC circuit breaker 6 .
  • the bidirectional charger and charger according to the present invention may apply a voltage of 0 to 1500 V dc . In order to apply or open a high voltage, the relay switch 50 having a strong structure as in the present invention is required, and accordingly, it is possible to prepare for the rapidly developing electric vehicle market.
  • the present invention relates to a relay switch used in a bidirectional charger/discharger capable of charging or discharging a battery of an electric vehicle or a hybrid vehicle that can be driven by electricity from a low voltage to a high voltage, and is an invention with high industrial applicability.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The present invention relates to a relay switch for a bidirectional charger/discharger and, more particularly, to a relay switch for a bidirectional charger/discharger capable of charging or discharging a battery of an electrically drivable hybrid vehicle or electric vehicle from a low voltage to a high voltage, and provides three relay switches of a bidirectional charger/discharger which are mounted between a pair of DC/DC converters and a circuit breaker so as to connect the DC/DC converters and the circuit breaker in series or in parallel, each of the relay switches being characterized by comprising: a fixed electrode unit consisting of an insulating body and a pair of fixed electrodes mounted on both sides of a fixed electrode mounting groove formed in the insulating body by being spaced apart from each other by a predetermined distance; a link unit mounted on the fixed electrode unit to rotate a connection electrode unit such that the fixed electrodes of the fixed electrode unit are connected to each other or open; and the connection electrode unit mounted on the link unit to connect the fixed electrodes of the fixed electrode unit to each other or open the fixed electrodes.

Description

양방향 충방전기의 릴레이 스위치Relay switch of bidirectional charger/discharger
본 발명은 양방향 충방전기의 릴레이 스위치에 관한 것으로, 더 상세하게는 전기로 구동가능한 하이브리드 차량이나 전기 차량의 배터리를 저전압에서 고전압까지 충전하거나 방전할 수 있는 양방향 충방전기의 릴레이 스위치에 관한 것이다.The present invention relates to a relay switch for a two-way charger/discharger, and more particularly, to a relay switch for a two-way charger/discharger capable of charging or discharging a battery of an electrically drivable hybrid vehicle or an electric vehicle from a low voltage to a high voltage.
현재까지 대부분의 차량들은 화석연료를 사용하여 왔으나, 최근 미세먼지에 의한 환경문제가 대두됨에 따라 자동차의 화석연료 사용에 따른 매연 등의 발생을 줄이려는 노력이 계속되고 있다. 이러한 노력의 일환으로 매연이 많이 발생하는 트럭 등과 같은 대형 차량에서 DPF(Diesel Particulate Filter) 장치를 배기부에 장착하도록 하거나, 하이브리드 차량 또는 전기로 구동되는 차량에 대한 구입 비용을 절감해 주는 등을 들 수 있다.Up to now, most vehicles have used fossil fuels, but as environmental problems due to fine dust have recently emerged, efforts to reduce the generation of soot and the like caused by the use of fossil fuels in automobiles are continuing. Some of these efforts include installing a Diesel Particulate Filter (DPF) device in the exhaust section of heavy-duty vehicles such as trucks that generate a lot of smoke, or reducing the purchase cost of hybrid or electrically powered vehicles. can
전기로 구동되는 차량에는 순수한 전기차량인 EV(Electric Vehicle)와, 하이브리드 차량인 HEV(Hybrid Electric Vehicle)와, 충전이 가능한 하이브리드 차량인 PHEV(Plug-in Hybrid Electric Vehicle) 등이 있다. 하이브리드 또는 전기 차량의 보급에 따라 차츰 하이브리드 또는 전기 차량의 보유량은 늘어나고 있는 실정이다.Electric vehicles include an Electric Vehicle (EV), which is a pure electric vehicle, a Hybrid Electric Vehicle (HEV), which is a hybrid vehicle, and a Plug-in Hybrid Electric Vehicle (PHEV), which is a rechargeable hybrid vehicle. With the spread of hybrid or electric vehicles, the number of hybrid or electric vehicles is gradually increasing.
또한, 세계적인 환경 규제 강화 및 에너지 비용 절감 추세에 따라 기존 제품을 대체하는 환경 친화적인 전기 차량에 대한 시대적 요구가 증대되고 있으며, CO2 저감 및 연비 개선과 환경 규제 강화 등에 대응하기 위한 친환경 전기차 시장의 성장세가 지속될 것으로 판단된다. 전기자동차 보급 확대와 운용 활성화를 위해 충전 인프라 구축이 반드시 필요하다.In addition, with the global trend of strengthening environmental regulations and reducing energy costs, the demand for environmentally friendly electric vehicles that replace existing products is increasing. Growth is expected to continue. It is essential to build a charging infrastructure to expand the supply of electric vehicles and activate their operation.
전기 자동차의 보급 확대를 위한 충전 인프라로서, 밧데리의 충전 및 밧데리의 상태를 관리할 수 있는 양방향 충방전기가 필요하며, 양방향 충방전기의 경우 고전압이 인가될 수 있기 때문에, 고전압의 인가 및 차단에 필요한 내구성이 강한 릴레이 스위치가 필요하다.As a charging infrastructure for expanding the supply of electric vehicles, a two-way charger/discharger capable of managing battery charging and battery status is required. You need a durable relay switch.
상기와 같은 문제점을 해결하기 위해, 본 발명은 양방향 충방전기에서 고전압이 인가되거나 차단되는 릴레이 스위치의 내구성이 보장될 수 있는 링크구조를 가지는 양방향 충방전기의 릴레이 스위치를 제공함을 목적으로 한다.In order to solve the above problems, an object of the present invention is to provide a relay switch of a bidirectional charger and discharger having a link structure that can ensure the durability of a relay switch to which a high voltage is applied or blocked in the bidirectional charger and discharger.
본 발명은 상기의 목적을 달성하기 위해, 한 쌍의 DC/DC 컨버터와 차단기 사이에 세 개가 장착되어, 상기 DC/DC 컨버터와 차단기를 직렬 또는 병렬로 연결하기 위한 양 방향 충방전기의 릴레이 스위치에 있어서, 상기 각 릴레이 스위치는, 절연몸체와, 상기 절연몸체에 형성된 고정전극 장착홈에 일정거리 이격되어 양측으로 장착되는 한 쌍의 고정전극으로 구성되는 고정전극부; 상기 고정전극부에 장착되어 상기 고정전극부의 고정전극이 서로 연결 또는 개방되도록 연결전극부를 회동시키기 위한 링크부; 및 상기 링크부에 장착되어 상기 고정전극부의 고정전극을 서로 연결하거나 개방하는 연결전극부;로 이루어지는 것을 특징으로 하는 양 방향 충방전기의 릴레이 스위치를 제공한다.In order to achieve the above object, three are mounted between a pair of DC/DC converters and a circuit breaker, and a relay switch of a two-way charger/discharger for connecting the DC/DC converter and the circuit breaker in series or in parallel. The relay switch includes: a fixed electrode unit comprising an insulating body and a pair of fixed electrodes spaced apart from each other by a predetermined distance in a fixed electrode mounting groove formed in the insulating body and mounted on both sides; a link unit mounted on the fixed electrode unit to rotate the connecting electrode unit so that the fixed electrodes of the fixed electrode unit are connected or opened to each other; and a connection electrode unit mounted on the link unit to connect or open the fixed electrodes of the fixed electrode unit to each other.
본 발명에서 링크부는, 상기 절연몸체에 중앙이 개방되도록 일정거리 이격되어 서로 대응되는 형태로 한 쌍이 고정 장착되는 고정링크부; 상부측에서 양측으로 갈라져 하부측으로 연장되고 상기 고정링크부의 전방 하부측에 회전가능하도록 하단이 연결되는 메인링크부; 상기 메인링크부의 상부측에 절연체로 형성되는 손잡이; 상단은 상기 메인링크부의 내측에 회전가능하도록 연결되고 하단에는 회전링크가 회전가능하도록 연결되는 중간링크부; 및 후단은 상기 고정링크부의 후방 상부측에 회전가능하도록 연결되고 전단에는 연결전극이 고정장착되며 상기 메인링크부를 통과하는 부분에서 상기 중간링크부의 하단에 회전가능하도록 연결되는 회전링크부;로 이루어지는 것을 특징으로 한다.In the present invention, the link unit includes: a fixed link unit in which a pair is fixedly mounted in a form corresponding to each other spaced apart by a predetermined distance so that the center is opened to the insulating body; a main link part that is split from the upper side to both sides and extends to the lower side, and the lower end is connected to the lower side so as to be rotatable on the front lower side of the fixed link part; a handle formed of an insulator on the upper side of the main link part; An upper end of the intermediate link portion is rotatably connected to the inner side of the main link portion and the lower end of the rotary link is rotatably connected; And the rear end is rotatably connected to the rear upper side of the fixed link portion, the connection electrode is fixedly mounted on the front end, the rotating link portion is rotatably connected to the lower end of the intermediate link portion at a portion passing through the main link portion; characterized.
본 발명에서 연결전극부는, 링크부의 회전링크부가 고정되는 연결전극 절연몸체와, 상기 연결전극 절연몸체의 저면에 장착되는 연결전극으로 구성되는 것을 특징으로 한다.In the present invention, the connecting electrode unit is characterized in that it is composed of a connecting electrode insulating body to which the rotating link unit of the link unit is fixed, and a connecting electrode mounted on a bottom surface of the connecting electrode insulating body.
본 발명에서 메인링크는 사용자의 물리적인 힘에 의해 구동되거나 액츄에이터에 의해 구동되는 것을 특징으로 한다.In the present invention, the main link is driven by the user's physical force or is characterized in that it is driven by an actuator.
본 발명에 따른 양방향 충방전기의 릴레이 스위치는 링크구조가 단순하기 때문에 내구성이 뛰어나다는 장점을 가진다.The relay switch of the bidirectional charger/discharger according to the present invention has the advantage of excellent durability because the link structure is simple.
또한, 본 발명에 따른 양방향 충방전기의 릴레이 스위치는 링크구조의 단순성으로 인하여 고장의 가능성이 낮다는 장점을 가진다.In addition, the relay switch of the bidirectional charger/discharger according to the present invention has the advantage that the possibility of failure is low due to the simplicity of the link structure.
또한, 본 발명에 따른 양방향 충방전기의 릴레이 스위치는 충방전기를 통해 공급되는 고전압을 안전하게 밧데리로 전달할 수 있는 장점을 가진다.In addition, the relay switch of the bidirectional charger/discharger according to the present invention has the advantage of safely transferring the high voltage supplied through the charger/discharger to the battery.
도 1은 본 발명에 따른 릴레이 스위치가 구비되는 양방향 충방전기의 구조도.1 is a structural diagram of a bidirectional charger/discharger provided with a relay switch according to the present invention.
도 2는 본 발명에 따른 양방향 충방전기의 릴레이 스위치의 사시도.2 is a perspective view of a relay switch of a bidirectional charger/discharger according to the present invention.
도 3은 본 발명에 따른 양방향 충방전기의 릴레이 스위치의 분해 사시도.3 is an exploded perspective view of a relay switch of a bidirectional charger/discharger according to the present invention.
도 4는 본 발명에 따른 양방향 충방전기의 릴레이 스위치의 링크부의 사시도.4 is a perspective view of a link part of a relay switch of a bidirectional charger/discharger according to the present invention.
도 5는 본 발명에 따른 양방향 충방전기의 릴레이 스위치의 링크부의 일부를 제거한 상태의 사시도.5 is a perspective view of a state in which a part of the link part of the relay switch of the bidirectional charger/discharger according to the present invention is removed.
도 6은 본 발명에 따른 양방향 충방전기의 릴레이 스위치의 연결전극부의 사시도.6 is a perspective view of a connection electrode part of a relay switch of a bidirectional charger/discharger according to the present invention.
도 7은 본 발명에 따른 양방향 충방전기의 릴레이 스위치에서 연결전극과 고정전극이 서로 연결되어 전원이 인가된 것을 도시한 전류 흐름도.7 is a current flow diagram illustrating that a connection electrode and a fixed electrode are connected to each other and power is applied in the relay switch of the bidirectional charger/discharger according to the present invention.
도 8은 본 발명에 따른 양방향 충방전기의 릴레이 스위치를 이용한 직류전원의 직렬 및 병렬 연결 구성도.8 is a diagram illustrating a series and parallel connection of DC power using a relay switch of a bidirectional charger/discharger according to the present invention.
이하 상기 목적이 구체적으로 실현될 수 있는 본 발명의 실시예들을 첨부된 도면을 참조하여 상세하게 설명한다. 본 실시예들을 설명함에 있어서 동일 구성에 대해서는 동일 명칭 및 부호가 사용되며, 이에 따른 부가적인 설명은 생략하기로 한다.Hereinafter, embodiments of the present invention in which the above object can be specifically realized will be described in detail with reference to the accompanying drawings. In the description of the present embodiments, the same names and symbols are used for the same components, and an additional description thereof will be omitted.
도 1은 본 발명에 따른 릴레이 스위치가 구비되는 양방향 충방전기의 구조도이고, 도 2는 본 발명에 따른 양방향 충방전기의 릴레이 스위치의 사시도이고, 도 3은 본 발명에 따른 양방향 충방전기의 릴레이 스위치의 분해 사시도이고, 도 4는 본 발명에 따른 양방향 충방전기의 릴레이 스위치의 링크부의 사시도이고, 도 5는 본 발명에 따른 양방향 충방전기의 릴레이 스위치의 링크부의 일부를 제거한 상태의 사시도이고, 도 6은 본 발명에 따른 양방향 충방전기의 릴레이 스위치의 연결전극부의 사시도이고, 도 7은 본 발명에 따른 양방향 충방전기의 릴레이 스위치에서 연결전극과 고정전극이 서로 연결되어 전원이 인가된 것을 도시한 전류 흐름도이고, 도 8은 본 발명에 따른 양방향 충방전기의 릴레이 스위치를 이용한 직류전원의 직렬 및 병렬 연결 구성도이다.1 is a structural diagram of a bidirectional charger/discharger provided with a relay switch according to the present invention, FIG. 2 is a perspective view of a relay switch of a bidirectional charger/discharger according to the present invention, and FIG. 3 is a relay switch of a bidirectional charger/discharger according to the present invention It is an exploded perspective view, FIG. 4 is a perspective view of the link part of the relay switch of the bidirectional charger/discharger according to the present invention, FIG. 5 is a perspective view of a state in which a part of the link part of the relay switch of the bidirectional charger/discharger according to the present invention is removed, and FIG. It is a perspective view of the connection electrode part of the relay switch of the bidirectional charger/discharger according to the present invention, and FIG. 7 is a current flow diagram showing that the connection electrode and the fixed electrode are connected to each other and power is applied in the relay switch of the bidirectional charger/discharger according to the present invention. , FIG. 8 is a configuration diagram illustrating a series and parallel connection of DC power using a relay switch of a bidirectional charger/discharger according to the present invention.
도 1은 본 발명에 따른 릴레이 스위치가 구비되는 양방향 충방전기의 구조도이다. 도면에 도시된 바와 같이, 양방향 충방전기의 구조는 3상 AC전원이 인가되는 3상 AC전원 인입부(1)와, 3상 AC전원이 병렬로 연결된 후 구비되는 차단기 초기충전 파워필터(2)와, 파워필터(2)를 통과한 AC전원을 DC전원으로 변환하는 AC/DC 컨버터부(3)와, AC/DC 컨버터부(3)에서 변환된 DC전원을 전기 자동차에 적합한 DC전원으로 변환하는 DC/DC 컨버터부(4)와, DC/DC 컨버터부(4)와 연결되어 전기 자동차에 적합한 DC전원을 직렬(Serial) 또는 병렬(Parallel)로 연결하기 위한 스위칭부(5)와, 스위칭부(5)와 연결되는 DC차단기(6)로 이루어진다. DC차단기(6)에는 밧데리가 연결된다.1 is a structural diagram of a bidirectional charger/discharger provided with a relay switch according to the present invention. As shown in the figure, the structure of the bidirectional charger and discharger includes a three-phase AC power inlet (1) to which three-phase AC power is applied, and a breaker initial charging power filter (2) provided after the three-phase AC power is connected in parallel. and AC/DC converter unit 3 that converts AC power passing through power filter 2 into DC power, and converts DC power converted by AC/DC converter unit 3 into DC power suitable for electric vehicles A DC/DC converter unit 4, which is connected to the DC/DC converter unit 4, and a switching unit 5 for connecting DC power suitable for an electric vehicle in series or parallel, and switching It consists of a DC circuit breaker (6) connected to the part (5). A battery is connected to the DC circuit breaker (6).
AC전원 인입부(1)와 AC/DC 컨버터부(3) 사이에 연결되는 차단기 초기충전 파워필터(2)는 AC전원 인입부(1)에 인가된 AC전원의 고조파를 제거하는 기능을 수행한다. 파워필터(2)는 고조파량에 따라 단독 L방식과 LC, LCD 등 다양한 조합이 가능하며, 노이즈를 저감가히 위한 노이즈 필터 및 절연을 위한 변압기가 포함될 수 있다.The breaker initial charging power filter (2) connected between the AC power inlet (1) and the AC/DC converter (3) performs a function of removing harmonics of the AC power applied to the AC power inlet (1). . The power filter 2 can be combined with a single L method, LC, LCD, etc., depending on the amount of harmonics, and a noise filter for reducing noise and a transformer for insulation may be included.
다음으로 AC/DC 컨버터부(3)는 AC전원을 인가받아 DC전원으로 변환시켜서 출력한다.Next, the AC/DC converter unit 3 receives AC power, converts it into DC power, and outputs it.
AC/DC 컨버터부(3)에서 변환된 DC전원은 DC/DC 컨버터부(4)로 인가되고, DC/DC 컨버터부(4)는 전기 자동차의 배터리 충전에 적합한 DC전원으로 변환한다.The DC power converted by the AC/DC converter unit 3 is applied to the DC/DC converter unit 4, and the DC/DC converter unit 4 converts it into DC power suitable for charging the battery of the electric vehicle.
DC/DC 컨버터부(4)에서 변환된 DC전원은 스위칭부(5)에서 직렬 또는 병렬로 연결되어 DC 차단기(6)로 출력된다. 스위칭부(5)는 릴레이 스위치(50)로 이루어지며, 릴레이 스위치(50)는 세개로 구성되어 직렬 또는 병렬로 DC 차단기(6)로 저전압에서 고전압까지 출력한다.The DC power converted by the DC/DC converter unit 4 is connected in series or parallel in the switching unit 5 and output to the DC circuit breaker 6 . The switching unit 5 is composed of a relay switch 50, and the relay switch 50 is composed of three and outputs a low voltage to a high voltage with the DC circuit breaker 6 in series or in parallel.
도 2 내지 도 7은 본 발명에 따른 스위칭부(5)의 릴레이 스위치(50)에 대한 도면이다. 도 2에 도시된 바와 같이, 릴레이 스위치(50)는, 고정전극부(51)와, 고정전극부(51)에 고정되어 고정전극부(51)와 연결전극부(53)를 서로 연결하거나 개방되도록 하는 링크부(52)와, 링크부(52)의 일단에 고정되는 연결전극부(53)로 이루어진다.2 to 7 are views of the relay switch 50 of the switching unit 5 according to the present invention. As shown in FIG. 2 , the relay switch 50 has the fixed electrode unit 51 and the fixed electrode unit 51 fixed to the fixed electrode unit 51 and the connecting electrode unit 53 to connect or open the fixed electrode unit 51 and the connecting electrode unit 53 to each other. It consists of a link part 52 to be made and a connection electrode part 53 fixed to one end of the link part 52 .
도 3은 릴레이 스위치(50)를 분해한 사시도이다. 도면에 도시된 바와 같이, 고정전극부(51)는, 절연몸체(511)와, 절연몸체(511)에 형성되는 한 쌍의 고정전극(512 : 512a, 512b)이 안착되는 한 쌍의 고정전극 안착홈(513 : 513a, 513b)과, 고정전극 안착홈(513)에 안착되는 한 쌍의 고정전극(512 : 512a, 512b)과, 한 쌍의 고정전극 안착홈(513) 사이에 돌출되어 고정전극(512)을 서로 이격시키는 이격돌기(514)와, 링크부(52)의 고정링크부(521)가 안착고정되는 고정링크부 안착홈(515)으로 이루어진다. 한 쌍의 고정전극(512)은 일측 고정전극(512a)와 타측 고정전극(512b)로 이루어지고, 한 쌍의 고정전극 안착홈(513)은 일측 고정전극 안착홈(513a)과 타측 고정전극 안착홈(513b)로 이루어진다.3 is an exploded perspective view of the relay switch 50 . As shown in the drawing, the fixed electrode part 51 includes an insulating body 511 and a pair of fixed electrodes on which a pair of fixed electrodes 512: 512a, 512b formed on the insulating body 511 are seated. It protrudes and is fixed between the seating grooves 513: 513a, 513b, a pair of fixed electrodes 512: 512a, 512b seated in the fixed electrode seating groove 513, and a pair of fixed electrode seating grooves 513 It consists of a spacer protrusion 514 for separating the electrodes 512 from each other, and a fixed link part seating groove 515 in which the fixed link part 521 of the link part 52 is seated and fixed. The pair of fixed electrodes 512 includes a fixed electrode 512a on one side and a fixed electrode 512b on the other side, and the pair of fixed electrode seating grooves 513 includes a fixed electrode seating groove 513a on one side and a fixed electrode seating groove on the other side. It consists of a groove (513b).
도 3 내지 도 5에 도시된 바와 같이, 링크부(52)는 절연몸체(511)에 중앙이 개방되도록 일정거리 이격되어 서로 대응되는 형태로 한 쌍이 고정 장착되는 고정링크부(521)와, 고정링크부(521)에 회전가능하게 고정장착되는 메인링크부(522)와, 메인링크부(522)의 상부측에 절연체로 형성되는 손잡이(523)와, 메인링크부(522)의 내측으로 회전가능하도록 장착되는 중간링크부(524)와, 고정링크부(521)와 중간링크부(524)에 후방측이 회전가능하도록 장착되는 회전링크부(525)로 구성된다.3 to 5, the link portion 52 is spaced apart by a predetermined distance so that the center is opened to the insulating body 511 and a pair of fixed link portions 521 are fixedly mounted in a form corresponding to each other, and The main link part 522 fixedly mounted on the link part 521 , the handle 523 formed of an insulator on the upper side of the main link part 522 , and the main link part 522 are rotated inside the main link part 522 . It consists of an intermediate link part 524 mounted so as to be possible, and a fixed link part 521 and a rotation link part 525 mounted so that the rear side is rotatably mounted on the intermediate link part 524 .
도 4에 도시된 바와 같이 메인링크부(521)는, 손잡이(523)의 하단에서 양측으로 갈라져서 연장되는 일측 메인링크바(5221a)와 타측 메인링크바(5221b)로 이루어지고, 각각의 하단은 고정링크부(521)에 힌지(5222)로 회전가능하도록 장착되어 일측 메인링크바(5221a)와 타측 메인링크바(5221b)가 일정간격 이격 설치된다. 또한, 일측 메인링크바(5221a)와 타측 메인링크바(5221b)의 이격공간의 상부측에는 중간링크부(524)가 회전가능하도록 힌지(5223)로 연결 장착된다.As shown in FIG. 4, the main link part 521 is made of one main link bar 5221a and the other main link bar 5221b extending to both sides from the lower end of the handle 523, and each lower end is The fixed link portion 521 is rotatably mounted with a hinge 5222 so that one main link bar 5221a and the other main link bar 5221b are installed to be spaced apart from each other by a predetermined interval. In addition, the intermediate link portion 524 is connected to the upper side of the separation space between the main link bar 5221a on one side and the main link bar 5221b on the other side by a hinge 5223 so as to be rotatably mounted.
도 4 및 도 5를 참조하여 고정링크부(521)를 설명한다. 고정링크부(521)는 서로 동일한 형상이나 좌우측으로 대응되는 형상으로 이루어진다. 구체적으로 고정링크부(521)는, 하부에 형성되는 고정연결판(5211)과 고정연결판(5211)에서 상부로 절곡형성되는 힌지연결판(5212)로 이루어지는데, 고정링크부(521)는 고정전극부(51)의 고정링크부 안착홈(515)에 고정 장착된다. 즉, 고정링크부 안착홈(515)에는 일측 고정연결판(5211a)과 타측 고정연결판(5211b)이 고정 장착된다. 또한, 일측 고정연결판(5211a)의 내측에서 상부로 절곡되어 형성되는 일측 힌지연결판(5212a)과 타측 고정연결판(5211b)의 내측에서 일측 힌지연결판(5212a)와 서로 마주보도록 상부로 절곡되어 형성되는 타측 힌지연결판(5212b)으로 이루어진다. 일측 힌지연결판(5212a)와 타측 힌지연결판(5212b)는 모서리의 모따기가 된 삼각형상을 가지며 전방측으로 경사진 형태로 형성된다. 일측 힌지연결판(5212a)과 타측 힌지연결판(5212b)의 전방 하부측에는 메인링크부(522)의 하단이 회전가능하도록 힌지(5222)에 의해 연결되고, 후방 상부측에는 회전링크부(525)가 힌지(5213)에 의해 회전가능하도록 연결된다.The fixed link unit 521 will be described with reference to FIGS. 4 and 5 . The fixed link portion 521 has the same shape or a shape corresponding to the left and right sides. Specifically, the fixed link unit 521 includes a fixed connecting plate 5211 formed at the lower part and a hinge connecting plate 5212 formed by bending the fixed connecting plate 5211 to the upper part, and the fixed link unit 521 is It is fixedly mounted in the fixing link part seating groove 515 of the fixed electrode part 51 . That is, one fixed connecting plate 5211a and the other fixed connecting plate 5211b are fixedly mounted in the fixed link part seating groove 515 . In addition, one hinge connecting plate 5212a and the other fixed connecting plate 5211b formed by bending upward from the inside of the one fixed connecting plate 5211a are bent upward to face each other with the one hinge connecting plate 5212a from the inside of the other fixed connecting plate 5211b. The other side hinge connection plate 5212b is formed. The one hinge connecting plate 5212a and the other hinge connecting plate 5212b have a triangular shape with chamfered corners and are inclined forward. The lower end of the main link part 522 is rotatably connected to the front lower side of the one hinge connecting plate 5212a and the other hinge connecting plate 5212b by a hinge 5222, and the rotating link unit 525 is provided on the rear upper side. It is rotatably connected by a hinge 5213 .
도 4 및 도 5를 참조하여 중간링크부(524)에 대해 설명한다. 중간링크부(524)는, 전방에 형성되는 중간링크 전방바(5241)와, 전방바(5241)의 양측에서 후방으로 형성되어 상하로 연장되는 중간링크 일측 후방바(5242a)와 중간링크 타측 후방바(5242b)로 이루어진다. 중간링크 일측 후방바(5242a)와 타측 후방바(5242b)의 상단은 힌지(5223)에 의해 일측 메인링크바(5221a)와 타측 메인링크바(5221b)에 회전가능하도록 연결되고, 중간링크 일측 후방바(5242a)와 타측 후방바(5242b)의 하단은 회전링크부(525)가 힌지(5243)로 연결되어 회전가능하도록 한다.The intermediate link unit 524 will be described with reference to FIGS. 4 and 5 . The intermediate link unit 524 includes an intermediate link front bar 5241 formed in the front, a rear middle link formed in the rear from both sides of the front bar 5241 and one rear bar 5242a of the middle link extending up and down, and the other rear of the intermediate link. It consists of a bar (5242b). The upper ends of the intermediate link one rear bar 5242a and the other rear bar 5242b are rotatably connected to the one main link bar 5221a and the other main link bar 5221b by a hinge 5223, and the middle link one rear side The lower ends of the bar 5242a and the other rear bar 5242b are connected to the rotation link 525 by a hinge 5243 to be rotatable.
도 4 및 도 5를 참조하여 회전링크부(525)에 대해 설명한다. 회전링크부(525)는, 후단은 고정링크부(521)에 힌지(5213)에 의해 회전가능하게 연결되고 전단에는 연결전극부(53)가 고정된다. 구체적으로 회전링크부(525)는, 고정링크부(521)의 일측 힌지연결판(5212a)과 타측 힌지연결판(5212b) 사이에 회전가능하도록 힌지(5213)로 후단이 연결되는 회전링크바(5252)와, 회전링크바(5252)의 전방에는 연결전극부(53)가 고정장착될 수 있도록 연결전극 장착바(5251)로 구성된다. 회전링크바(5252)의 후단은 고정링크부(521)에 힌지(5213)로 회전가능하도록 연결되고, 중앙측은 중간링크(524)의 후방바(5242a, 5242b)에 힌지(5243)로 회전가능하도록 연결된다. 회전링크부(525)를 회전시키는 동작을 살펴보면, 손잡이(523)를 뒷쪽으로 재치는 경우, 손잡이에 작용하는 힘은 중간링크부(524)로 전달되고, 중간링크부(524)는 회전링크부(525)를 들어올리는 힘이 전달된다. 그에 따라 손잡이(523)를 회전시키는 경우, 회전링크부(525)는 회전축인 힌지(5213)를 중심으로 회전하게 된다.The rotary link unit 525 will be described with reference to FIGS. 4 and 5 . A rear end of the rotary link unit 525 is rotatably connected to the fixed link unit 521 by a hinge 5213 and a connection electrode unit 53 is fixed at the front end. Specifically, the rotating link unit 525 is a rotating link bar having a rear end connected to a hinge 5213 so as to be rotatable between one hinge connecting plate 5212a and the other hinge connecting plate 5212b of the fixed link unit 521 ( 5252 and a connecting electrode mounting bar 5251 so that the connecting electrode part 53 can be fixedly mounted in front of the rotating link bar 5252 . The rear end of the rotary link bar 5252 is rotatably connected to the fixed link portion 521 by a hinge 5213 , and the central side is rotatable by a hinge 5243 to the rear bars 5242a and 5242b of the intermediate link 524 . connected to do Looking at the operation of rotating the rotation link unit 525, when the handle 523 is placed backward, the force acting on the handle is transmitted to the intermediate link unit 524, and the intermediate link unit 524 is the rotation link unit. The force to lift (525) is transmitted. Accordingly, when the handle 523 is rotated, the rotation link unit 525 is rotated about the hinge 5213 as a rotation axis.
도 6은 연결전극부(53)를 도시하고 있다. 연결전극부(53)는, 연결전극 절연몸체(531)와, 연결전극 절연몸체의 저면에 장착되는 연결전극(532)으로 이루어지며, 연결전극 절연몸체(531)에는 회전링크부(525)의 연결전극 장착바(5251)가 고정 장착된다. 그에 따라 연결전극(532)는 회전링크부(525)가 회전함에 따라 함게 회전하게 된다.6 shows the connection electrode part 53 . The connecting electrode part 53 is composed of a connecting electrode insulating body 531 and a connecting electrode 532 mounted on the bottom surface of the connecting electrode insulating body, and the connecting electrode insulating body 531 includes a rotating link part 525 . The connecting electrode mounting bar 5251 is fixedly mounted. Accordingly, the connection electrode 532 rotates together as the rotation link part 525 rotates.
도 7은 일측 고정전극(512a)와 타측 고정전극(512b)가 연결전극(532)에 의해 서로 통전되고 있는 상태를 도시하고 있다. 양방향이므로 전류는 현재의 도면과 같이 흐르거나 그 반대로 흐를 수 있다. 만일 손잡이(523)을 뒤로 회전시키면 연결전극(532)은 회전되어 고정전극을 서로 개방하게 된다.FIG. 7 shows a state in which one fixed electrode 512a and the other fixed electrode 512b are energized with each other by the connection electrode 532 . Since it is bidirectional, the current can flow as shown in the current drawing or vice versa. If the handle 523 is rotated backward, the connecting electrode 532 is rotated to open the fixed electrodes to each other.
도 8은 세개의 릴레이 스위치(50a, 50b, 50c)를 이용하여 직렬 또는 병렬로 연결하는 방법을 도시하고 있다. 도 8(a)에서는 중앙의 릴레이 스위치(50b)만 전류가 흐르게 되고, 그에 따라 한 쌍의 DC/DC 컨버터(4)는 직렬로 연결되고, DC차단기(6)로 고전압을 인가할 수 있다. 도 8(b)는 중앙의 릴레이 스위치(50b)만을 개방한 상태를 도시하고 있다. 중앙의 릴레이 스위치(50b)만 개방하는 경우 병렬로 DC/DC 컨버터(4)를 연결하는 것이 되어 DC차단기(6)에 저전압을 인가할 수 있다. 본 발명에 따른 양방향 충반전기는 0 ~ 1500 Vdc 전압을 인가할 수 있다. 고전압을 인가하거나 개방하기 위해 본 발명과 같은 강한 구조의 릴레이 스위치(50)가 필요하며, 그에 따라 급속히 발전하는 전기 자동차의 시장에 대비할 수 있다.8 shows a method of connecting in series or parallel using three relay switches 50a, 50b, and 50c. In FIG. 8( a ), only the central relay switch 50b allows current to flow, and accordingly, a pair of DC/DC converters 4 are connected in series, and a high voltage can be applied to the DC circuit breaker 6 . 8(b) shows a state in which only the central relay switch 50b is opened. When only the central relay switch 50b is opened, the DC/DC converter 4 is connected in parallel, so that a low voltage can be applied to the DC circuit breaker 6 . The bidirectional charger and charger according to the present invention may apply a voltage of 0 to 1500 V dc . In order to apply or open a high voltage, the relay switch 50 having a strong structure as in the present invention is required, and accordingly, it is possible to prepare for the rapidly developing electric vehicle market.
본 발명은 상기 실시예에 한정되지 않고 본 발명의 기술적 요지를 벗어나지 아니하는 범위 내에서 다양하게 수정, 변형되어 실시될 수 있음은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 있어서 자명한 것이다.It is apparent to those of ordinary skill in the art that the present invention is not limited to the above embodiments and can be implemented with various modifications and variations without departing from the technical gist of the present invention. will be.
본 발명은 전기로 구동가능한 하이브리드 차량이나 전기 차량의 배터리를 저전압에서 고전압까지 충전하거나 방전할 수 있는 양방향 충방전기에 사용되는 릴레이 스위치에 관한 것으로서 산업상 이용가능성이 높은 발명이다.The present invention relates to a relay switch used in a bidirectional charger/discharger capable of charging or discharging a battery of an electric vehicle or a hybrid vehicle that can be driven by electricity from a low voltage to a high voltage, and is an invention with high industrial applicability.

Claims (4)

  1. 한 쌍의 DC/DC 컨버터와 차단기 사이에 세 개가 장착되어, 상기 DC/DC 컨버터와 차단기를 직렬 또는 병렬로 연결하기 위한 양 방향 충방전기의 릴레이 스위치에 있어서,In the relay switch of a bidirectional charger/discharger, three are mounted between a pair of DC/DC converters and a breaker to connect the DC/DC converter and the breaker in series or in parallel,
    상기 각 릴레이 스위치는,Each relay switch is
    절연몸체와, 상기 절연몸체에 형성된 고정전극 장착홈에 일정거리 이격되어 양측으로 장착되는 일측 고정전극과 타측 고정전극으로 구성되는 고정전극부;a fixed electrode part comprising an insulating body and a fixed electrode on one side and a fixed electrode on the other side, which are spaced apart from each other by a predetermined distance in a fixed electrode mounting groove formed in the insulating body and are mounted on both sides;
    상기 고정전극부에 장착되어 상기 고정전극부의 고정전극이 서로 연결 또는 개방되도록 연결전극부를 회동시키기 위한 링크부; 및a link unit mounted on the fixed electrode unit to rotate the connecting electrode unit so that the fixed electrodes of the fixed electrode unit are connected or opened to each other; and
    상기 링크부에 장착되어 상기 고정전극부의 고정전극을 서로 연결하거나 개방하는 연결전극부;a connection electrode unit mounted on the link unit to connect or open the fixed electrodes of the fixed electrode unit to each other;
    로 이루어지는 것을 특징으로 하는 양 방향 충방전기의 릴레이 스위치.A relay switch of a two-way charger/discharger, characterized in that it consists of.
  2. 제1항에 있어서,According to claim 1,
    상기 링크부는,The link unit,
    상기 절연몸체에 중앙이 개방되도록 일정거리 이격되어 서로 대응되는 형태로 한 쌍이 고정 장착되는 고정링크부;a fixed link portion in which a pair is fixedly mounted in a form corresponding to each other by being spaced apart by a predetermined distance so that the center is opened to the insulating body;
    상부측에서 양측으로 갈라져 하부측으로 연장되고 상기 고정링크부의 전방 하부측에 회전가능하도록 하단이 연결되는 메인링크부;a main link part that is split from the upper side to both sides and extends to the lower side, and the lower end is connected to the lower side so as to be rotatable on the front lower side of the fixed link part;
    상기 메인링크부의 상부측에 절연체로 형성되는 손잡이;a handle formed of an insulator on the upper side of the main link part;
    상단은 상기 메인링크부의 내측에 회전가능하도록 연결되고 하단에는 회전링크가 회전가능하도록 연결되는 중간링크부; 및An upper end of the intermediate link portion is rotatably connected to the inner side of the main link portion and the lower end of the rotary link is rotatably connected; and
    후단은 상기 고정링크부의 후방 상부측에 회전가능하도록 연결되고 전단에는 연결전극이 고정장착되며 상기 메인링크부를 통과하는 부분에서 상기 중간링크부의 하단에 회전가능하도록 연결되는 회전링크부;a rotating link part having a rear end rotatably connected to the rear upper side of the fixed link part, a connecting electrode being fixedly mounted on the front end, and rotatably connected to a lower end of the intermediate link part at a portion passing through the main link part;
    로 이루어지는 것을 특징으로 하는 양방향 충방전기의 릴레이 스위치.A relay switch of a bidirectional charger/discharger, characterized in that it consists of.
  3. 제2항에 있어서,3. The method of claim 2,
    상기 연결전극부는,The connecting electrode part,
    상기 링크부의 회전링크부가 고정되는 연결전극 절연몸체와, 상기 연결전극 절연몸체의 저면에 장착되는 연결전극으로 구성되는 것을 특징으로 하는 양방향 충방전기의 릴레이 스위치.A relay switch for a bidirectional charger/discharger, comprising: a connecting electrode insulating body to which the rotating link part of the link unit is fixed; and a connecting electrode mounted on a bottom surface of the connecting electrode insulating body.
  4. 제3항에 있어서,4. The method of claim 3,
    상기 메인링크부는 사용자의 물리적인 힘에 의해 구동되거나 액츄에이터에 의해 구동되는 것을 특징으로 하는 양방향 충방전기의 릴레이 스위치.The relay switch of the bidirectional charger/discharger, characterized in that the main link unit is driven by a user's physical force or driven by an actuator.
PCT/KR2021/018057 2020-12-02 2021-12-02 Relay switch for bidirectional charger/discharger WO2022119329A1 (en)

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