WO2024085517A1 - 전동식 굴착기 - Google Patents
전동식 굴착기 Download PDFInfo
- Publication number
- WO2024085517A1 WO2024085517A1 PCT/KR2023/015501 KR2023015501W WO2024085517A1 WO 2024085517 A1 WO2024085517 A1 WO 2024085517A1 KR 2023015501 W KR2023015501 W KR 2023015501W WO 2024085517 A1 WO2024085517 A1 WO 2024085517A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- disposed
- battery
- electric excavator
- motor
- lower traveling
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
- E02F9/2062—Control of propulsion units
- E02F9/2075—Control of propulsion units of the hybrid type
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
- E02F9/2091—Control of energy storage means for electrical energy, e.g. battery or capacitors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
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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
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
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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
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/02—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits
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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
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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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
- B60L3/12—Recording operating variables ; Monitoring of operating variables
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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
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/13—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines using AC generators and 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
- 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
- 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
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
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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
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/66—Arrangements of batteries
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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
- B60L53/10—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 characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
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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
- B60L53/10—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 characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
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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]
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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
- B60L58/20—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 having different nominal voltages
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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
- B60L58/21—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 having the same nominal voltage
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
- E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/425—Drive systems for dipper-arms, backhoes or the like
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0808—Improving mounting or assembling, e.g. frame elements, disposition of all the components on the superstructures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/18—Counterweights
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
- E02F9/2062—Control of propulsion units
- E02F9/207—Control of propulsion units of the type electric propulsion units, e.g. electric motors or generators
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- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/52—Driving a plurality of drive axles, e.g. four-wheel drive
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- B60L2200/00—Type of vehicles
- B60L2200/40—Working vehicles
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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
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- B60L2210/10—DC to DC converters
- B60L2210/12—Buck converters
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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
- B60L2210/00—Converter types
- B60L2210/40—DC to AC converters
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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
- 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
- B60L2240/545—Temperature
-
- 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
- B60L2260/00—Operating Modes
- B60L2260/20—Drive modes; Transition between modes
- B60L2260/28—Four wheel or all wheel drive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2300/00—Indexing codes relating to the type of vehicle
- B60W2300/17—Construction vehicles, e.g. graders, excavators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/40—Special vehicles
- B60Y2200/41—Construction vehicles, e.g. graders, excavators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/40—Special vehicles
- B60Y2200/41—Construction vehicles, e.g. graders, excavators
- B60Y2200/412—Excavators
-
- 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
- B60Y2400/00—Special features of vehicle units
- B60Y2400/82—Four wheel drive systems
-
- 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
Definitions
- the present invention relates to construction machinery, and more specifically to electric excavators driven by electrical energy.
- construction machinery such as excavators are configured so that the upper swing body can freely rotate on the lower traveling body, and the front work device of the upper swing body is usually composed of a boom, arm, and bucket.
- the work of construction machinery is accomplished by controlling work devices such as booms, arms, and buckets through actuators such as hydraulic cylinders.
- a representative excavator of construction equipment is shown in Figure 1.
- a typical excavator consists of a lower traveling body (2) that drives the excavator, an upper rotating body (1) rotatably coupled to the lower traveling body (2), and a front mounted on the upper rotating body (1).
- the work tool includes a boom (3) rotatably coupled to the upper rotating body (1), an arm (4) rotatably coupled to the boom (3), and a rotatably coupled end of the arm (4) for excavation.
- it consists of a bucket (5) that can contain soil, rocks, etc.
- the driver's seat of the upper swing body (1) is equipped with a travel lever that operates the forward and backward travel of the lower traveling body (2) and a joystick that operates the upper swing body (1) and operates the front work equipment. .
- This well-known excavator has the advantage of being able to work freely without being restricted by the work location because it is equipped with an engine such as a diesel engine.
- the purpose of the present invention is to provide an electric excavator driven by electric energy, which has an efficient arrangement structure, effectively cools the engine and electric power system, and improves safety.
- An electric excavator includes a lower traveling body and an upper rotating body rotatably coupled to the lower traveling body, an engine disposed on the lower traveling body; a generator disposed on the undercarriage and generating electricity by the engine; a first battery disposed on the undercarriage and charged by the generator; a travel motor disposed on the lower traveling body and supplied with power from the first battery to move the lower traveling body; a swing motor disposed on the upper swing body and configured to rotate the upper swing body; and a work motor disposed on the upper rotating body and operating the front work device including a boom and an arm.
- the swing motor or the work motor is supplied with power from the first battery.
- the traveling body is disposed on the lower traveling body and further includes a first power distribution unit for supplying power between the first battery and the traveling motor.
- a front axle disposed in front of the lower traveling body; Front wheels disposed on both sides of the front axle; It further includes: a rear axle disposed at the rear of the lower traveling body; and rear wheels disposed on both sides of the rear axle; and the front and rear wheels rotate by the driving force of the travel motor.
- it further includes a gearbox connected to the driving motor.
- it further includes a second battery disposed on the upper rotating body.
- the upper swing body is disposed on the upper swing body and further includes a second power distribution unit for supplying power from the first battery to the swing motor and the work motor.
- it further includes a slip ring disposed between the first power distribution unit and the second power distribution unit to supply power between the first power distribution unit and the second power distribution unit.
- it further includes a hydraulic pump disposed on the upper swing body and driven by the work motor.
- hydraulic oil is supplied from the hydraulic pump to the hydraulic actuator of the front work device.
- it further includes a charging port for charging the first battery from an external power source.
- it further includes a second battery disposed on the upper rotating body, and charges the first battery and the second battery from an external power source through the charging port.
- the charging port is disposed on the lower traveling body.
- it further includes an inclined surface portion disposed on the other side of the upper swing body opposite to the cabin and inclined in a direction away from the cabin.
- a counterweight disposed behind the upper swing body and including an inclined surface portion inclined in a direction away from the cabin.
- the lower traveling body further includes a lower frame, the first battery is disposed on one side of the lower frame, and the engine is disposed on the other side of the lower frame opposite to the first battery.
- an electric excavator driven by electric energy and having an efficient arrangement structure is provided.
- an electric excavator is provided that effectively cools the engine and electric power system.
- an electric excavator is provided that improves safety by widening the driver's viewing angle.
- Figure 2 is a diagram schematically illustrating the main configuration of the electric excavator according to the present invention.
- Figure 3 is a plan view of the lower traveling body in the present invention, showing the main configuration of the lower traveling body;
- Figure 4 is a plan view of the upper rotating body in the present invention, showing the main configuration of the upper rotating body
- Figure 5 is a diagram showing a position where an additional battery can be installed in the undercarriage of the present invention.
- Figure 6 is a diagram showing a position where an additional battery can be installed in the upper rotating body of the present invention.
- Figure 7 is a diagram showing the battery and power supply line disposed on the upper swing body and the lower traveling body in the present invention.
- Figure 8 is a rear view of the electric excavator according to the present invention.
- Figure 9 is a front view of an electric excavator according to the present invention.
- Spatially relative terms such as “below”, “beneath”, “lower”, “above”, “upper”, etc. are used as a single term as shown in the drawing. It can be used to easily describe the correlation between elements or components and other elements or components. Spatially relative terms should be understood as terms that include different directions of the element during use or operation in addition to the direction shown in the drawings. For example, if an element shown in the drawings is turned over, an element described as “below” or “beneath” another element may be placed “above” the other element. Accordingly, the illustrative term “down” may include both downward and upward directions. Elements can also be oriented in other directions, so spatially relative terms can be interpreted according to orientation.
- a part when a part is connected to another part, this includes not only the case where it is directly connected, but also the case where it is connected with another element in between. Additionally, when it is said that a part includes a certain component, this does not mean that other components are excluded, but that it may further include other components, unless specifically stated to the contrary.
- first, second, and third may be used to describe various components, but these components are not limited by the terms. The above terms are used for the purpose of distinguishing one component from other components.
- a first component may be named a second or third component, etc., and similarly, the second or third component may also be named alternately.
- Figure 2 is a diagram illustrating the main configuration of the electric excavator according to the present invention
- Figure 3 is a plan view of the lower traveling body in the present invention, showing the main configuration of the lower traveling body
- Figure 4 is a diagram showing the main configuration of the lower traveling body in the present invention. It is a plan view of the body and shows the main configuration of the upper rotating body.
- Figure 5 is a diagram showing the position where an additional battery can be installed in the lower traveling body of the present invention
- Figure 6 is a drawing showing the additional battery in the upper rotating body of the present invention.
- Figure 7 is a diagram showing the battery and power supply line arranged on the upper swing body and the lower traveling body in the present invention
- Figure 8 is a diagram showing the electric excavator according to the present invention. It is a rear view
- Figure 9 is a front view of the electric excavator according to the present invention.
- the electric excavator includes a lower traveling body 100 and an upper rotating body 200 rotatably coupled to the lower traveling body 100, wherein the lower traveling body 100 Engine 110 disposed in; A generator 120 disposed on the lower vehicle 100 and generating electricity by the engine 110; A first battery 130 charged by the generator 120; A traveling motor 160 disposed on the lower traveling body 100 and for moving the lower traveling body 100; A swing motor 250 disposed on the upper swing body 200 and configured to rotate the upper swing body 200; and a work motor 270 disposed on the upper rotating body 200 and operating the front work device 300 including a boom 310 and an arm 320.
- the lower traveling body 100 is disposed at the lower part of the upper rotating body 200 and includes a lower frame 101 constituting the lower traveling body 100 and front and rear wheels 181 and 191 disposed on both sides of the lower frame 101. ) includes.
- an engine 110 Inside the lower frame 101 of the lower vehicle 100, as shown in FIGS. 2 and 3, an engine 110, a generator 120, a first battery 130, a first power distribution unit 140, A first inverter 150, a traveling motor 160, a gearbox 170, etc. are disposed.
- the lower frame 101 of the lower traveling body 100 includes an intermediate frame 102, a first frame 103 disposed on the left side of the intermediate frame 102, and a second frame disposed on the right side of the intermediate frame 101 ( 104).
- the middle frame 102 of the lower frame 101 extends in the front and rear direction of the lower traveling body 100, the front axle 180 is disposed in front of the middle frame 102, and the rear axle 180 is disposed at the rear of the middle frame 102.
- An axle 190 is disposed.
- a travel motor 160, a gearbox 170, a generator 120, etc. are disposed in the middle frame 102 of the lower frame 101.
- the first frame 103 of the lower frame 101 is a frame disposed on the left side of the middle frame 102 of the lower frame 101, and the first battery 130, etc. is disposed.
- the second frame 104 of the lower frame 101 is a frame disposed on the right side of the middle frame 102 of the lower frame 101, and the engine 110, etc. is disposed.
- the engine 110 disposed on the second frame 104 of the lower frame 101 is for driving the generator 120 to generate electricity.
- the engine 110 is an example of a diesel engine.
- An engine may be used, but is not limited to this, and a gasoline engine, liquefied petroleum gas, or natural gas engine may also be used.
- the generator 120 generates electricity by driving the engine 110, and the electricity generated by the generator 120 is supplied to the inverter 121.
- the inverter 121 converts alternating current in the electricity generated by the generator 120 into direct current, and the electricity converted to direct current in the inverter 121 is supplied to the first battery 130 and/or through the first power distribution unit 140. Or it is supplied to the second battery 210.
- the first power distribution unit (PDU) 140 supplies electricity converted to alternating current in the inverter 121 to the first battery 130, or to the upper rotating body 200 through the slip ring 220. It can be supplied to the second power distribution unit (PDU, 240). In addition, the first power distribution unit (PDU) 140 may supply power from the first battery 130 and/or the second battery 210 to the traveling motor 160.
- the first power distribution unit (PDU, 140) may include a bus bar, fuse, relay, etc.
- a charging port 195 is provided at the rear of the undercarriage 100, and external power can be supplied from the outside through the charging port 195. , the supplied external power may be supplied to the first battery 130 and/or the second battery 210 through the first power distribution unit (PDU, 140).
- Electricity generated by the generator 120 may be stored in the first battery 130 through the first power distribution unit (PDU, 140), and external power supplied through the charging port 195 may be used to distribute the first power. It can be stored in the first battery 130 through the unit (PDU, 140).
- the first battery 130 is disposed on the first frame 103 of the undercarriage 100, and the first battery 130 may be, for example, a lithium-ion battery, but is not limited thereto.
- the present invention may include a BMS (Battery Management System) that can check the state of charge of the first battery 130.
- BMS Battery Management System
- BMS Battery Management System
- SOC State of Charge
- internal resistance that changes depending on temperature. Accordingly, when the remaining capacity of the first battery 130 is below a certain level, the engine 110 can be driven to generate electricity in the generator 120, and the first battery 130 can be charged with the generated electricity.
- the first battery 130 is disposed on the first frame 103 in the lower vehicle 100 in this embodiment.
- the first inverter 150 converts electricity supplied from the first battery 130 and/or the second battery 210 from direct current to alternating current. Electricity converted to alternating current in the first inverter 150 is supplied to the traveling motor 160.
- the travel motor 160 is used to drive the front and rear wheels 181 and 191 to drive the electric excavator 1000, and is driven by electricity supplied through the first inverter 150.
- a gearbox 170 is connected to the driving motor 160, and the driving force of the driving motor 160 is transmitted to the front axle 180 and the rear axle 180 and 190 through the gearbox 170, and the front axle 180 ) and are transmitted to the front wheels 181 and rear wheels 191 respectively disposed on both sides of the rear axle 190.
- the front and rear wheels 181 and 191 are driven by one driving motor 160, but each driving motor 160 is used to drive the front axle 180 and the rear axle 180 and 190. ) may be placed.
- the upper swing body 200 is disposed on the upper part of the lower traveling body 100 and rotatably coupled to the lower traveling body 100.
- the upper swing body 200 includes an upper frame 201 and a cabin 202. , counterweight 203, front work device 300, etc.
- a second battery 210, a slip ring 220, and a vehicle control unit (HCU/TCU, 230) are installed inside the upper frame 201 of the upper rotating body 200, as shown in FIGS. 2 and 4, a second battery 210, a slip ring 220, and a vehicle control unit (HCU/TCU, 230) are installed.
- second power distribution unit (240), converter (225), second inverter (245), swing motor (250), reducer (255), third inverter (260), work motor (270), pump drive (280) ), hydraulic pump 290, etc. are placed inside the upper frame
- the slip ring 220 is for supplying power between the lower traveling body 100 and the upper rotating body 200, from the first power distribution unit (PDU, 140) to the second power distribution unit (PDU, 240) or from the first power distribution unit (PDU, 140) to the second power distribution unit (PDU, 240). It serves to supply power from the 2 power distribution unit (PDU, 240) to the first power distribution unit (PDU, 140).
- the slip ring 220 may be disposed at a coupling portion of the lower traveling body 100 and the upper rotating body 200.
- a slip ring 220 may be disposed in the central portion of the upper swing body 200, and a swing motor 250 may be disposed in front of the slip ring 220 and rear of the boom 310. It can be.
- a work motor 270 and a hydraulic pump 290 may be disposed on the right rear of the upper swing body 200, and a hydraulic oil cooler 291 and a hydraulic oil cooler 291 on the right front of the upper swing body 200. ) may be disposed to cool the cooling fan 292.
- the second power distribution unit (PDU, 240) supplies power supplied from the first power distribution unit (PDU, 140) through the slip ring 220 to the second battery 210, or Power can be supplied to the first power distribution unit (PDU, 140) through the slip ring 220.
- the second power distribution unit (PDU, 240) supplies power from the first battery 130 and/or the second battery 210 to the second inverter 245 for the turning motor 250 and the work motor 270. ) can be supplied to the third inverter 260.
- the second power distribution unit (PDU, 240) may include a bus bar, fuse, relay, etc.
- the second power distribution unit 240 may be placed on top of the second battery 210 and between the second inverter 245 and the second battery 210.
- the electricity generated by the generator 120 can be stored in the second battery 210 through the first power distribution unit 140, the slip ring 220, and the second power distribution unit (PDU, 240).
- external power supplied through the charging port 195 is stored in the second battery 210 through the first power distribution unit 140, the slip ring 220, and the second power distribution unit (PDU, 240). It can be.
- the second battery 210 may be, for example, a lithium-ion battery, but is not limited thereto.
- the second battery 210 may be placed at the rear of the cabin 202, and as shown in Figure 4, the second battery 210 is placed to partially overlap the counterweight 203 when viewed from above (on a plane). It can be.
- a portion of the second battery 210 may be disposed below the counterweight 203, and a portion of the second battery 210 may be inserted into a concave portion (groove, etc.) on the front of the counterweight 203. may be placed.
- a BMS Battery Management System
- a BMS Battery Management System
- BMS Battery Management System
- SOC State of Charge
- internal resistance that changes depending on temperature. Accordingly, when the remaining capacity of the second battery 210 is below a certain level, the engine 110 can be driven to generate electricity in the generator 120, and the second battery 210 can be charged with the generated electricity.
- the electrical energy stored in the first battery 130 and the second battery 210 can be supplied to the second inverter 245 for driving the swing motor 250 through the second power distribution unit (PDU, 240). , can be supplied to the third inverter 260 to drive the work motor 270.
- PDU power distribution unit
- the converter 225 is for converting the voltage of direct current power supplied from the first battery 130 and/or the second battery 210, and the converter 225 is a DC-DC converter.
- the converter 225 controls the voltage value of the direct current electricity supplied from the first battery 130 and/or the second battery 210 so that it is smaller than a set value. For example, the converter 225 can lower the voltage of 600V to 12V.
- the converter 225 converts the voltage of direct current electricity supplied from the first battery 130 and/or the second battery 210 to the swing motor 250, the work motor 270, or the traveling motor 160. can be supplied.
- the second inverter 245 converts electricity supplied through the second power distribution unit (PDU, 240) from direct current to alternating current. Electricity converted to alternating current in the second inverter 245 is supplied to the swing motor 250.
- the second inverter 245 may be placed on top of the second battery 210 at the rear of the cabin 202, as shown in FIG. 4, and may be placed on top of the second power distribution unit 240.
- the swing motor 250 is used to rotate the upper swing body 200 on the lower traveling body 100.
- the swing motor 250 is driven by electricity supplied through the second inverter 245.
- a reducer 260 composed of a plurality of gears is connected to the swing motor 250, and the swing motor 160 rotates the upper swing body 200 through the reducer 260.
- the third inverter 260 converts electricity supplied through the second power distribution unit (PDU, 240) from direct current to alternating current. Electricity converted to alternating current in the third inverter 260 is supplied to the work motor 270.
- the work motor 270 is for driving the hydraulic pump 290 for supplying hydraulic oil to the front work device 300 including the boom 310, arm 320, and bucket 330, and the third inverter ( The work motor 270 is driven by electricity supplied through 260).
- a pump drive 280 including a gearbox is connected to the work motor 270, and the driving force of the work motor 270 is transmitted to the hydraulic pump 290 through the pump drive 280.
- the hydraulic pump 290 is driven by the work motor 270, and the hydraulic pump 290 operates each hydraulic actuator for operating the boom 310, arm 320, and bucket 330 through the control valve. Hydraulic oil is supplied to (not shown), thereby operating the boom 310, arm 320, and bucket 330 of the front work device 300.
- the vehicle control unit controls the overall operation of the excavator vehicle. For example, it controls the driving of the excavator vehicle according to the operation of the travel lever and controls the turning of the upper swing body according to the operation of the turning joystick. In addition, the operation of the boom 310, arm 320, and bucket 330 of the front work device 300 are controlled according to the operation of the front work device 300 operation joystick.
- the conventional excavator shown in Figure 1 has a structure in which the engine, etc. are disposed on the upper swing body 1, but in the present invention, as described above, parts such as the engine 110 and generator 120 are located on the lower traveling body 100. It is possible to reduce the number of parts arranged in the upper rotating body 200 and reduce the size of the upper rotating body 200. In the present invention, the number of parts placed in the upper rotating body 200 can be reduced, the energy consumed when rotating the upper rotating body 200 can be reduced by reducing the size of the upper rotating body 200, and the driver's viewing angle during work can be reduced. Safety can be strengthened by securing a wider range of areas.
- the engine 110 and the generator 120 are disposed on the undercarriage 100, but as a pure battery-electric excavator, the engine 110 and the generator 120 may not be disposed.
- the present invention has the configuration as described above, and when the electric excavator of the present invention is driven back and forth, power is transmitted from the first battery 130 and the second battery 210 to the traveling motor 160 through the first power distribution unit 140. is supplied, and the driving force of the traveling motor 160 is transmitted to the front and rear wheels 181 and 191 through the gearbox 170, allowing the electric excavator to travel.
- the upper swing body 200 turns, power is supplied from the first battery 130 and the second battery 210 to the swing motor 250 through the second power distribution unit 240, and the swing motor ( The upper rotating body 200 rotates due to the driving of 250).
- the traveling motor 160, the swing motor 250, the work motor 270, etc. are operated, the first battery 130 disposed on the lower traveling body 100 and the upper rotating body 200 are used in the present invention.
- the second batteries 210 are connected in parallel so that the same capacity can be used for the load of the electric power components.
- the generator 120 is driven by the engine 110 and the first battery 130 and the generator 120 are operated by the generator 120.
- the second battery 210 can be charged, and the first battery 130 and the second battery 210 can also be charged with external power through the charging port 195.
- the first battery 130 is placed on the lower traveling body 100, and the second battery 210 is placed on the upper rotating body 200, giving an example of a total of two batteries. Although shown, three or more batteries may be disposed.
- Figure 5 shows an example in which an additional battery is disposed on the lower vehicle 100.
- the additional battery 130a may be disposed in front of the middle frame 102 of the lower frame 101.
- an additional battery 130b may be placed in the second frame 104 in place of the engine 110, as shown.
- Figure 6 shows an example in which an additional battery is disposed on the upper rotating body 200, and an additional battery 210a is placed on one side of the second battery 210 in the upper frame 201 of the upper rotating body 200. ) may be installed.
- three additional batteries 130a, 130b, and 210a may be installed.
- Figure 7 is a diagram showing a power supply line between the first and second batteries 130 and 210 disposed on the lower traveling body 100 and the upper rotating body 200 in the present invention.
- each (+) in the first battery 130, the first power distribution unit 140, the slip ring 220, the second power distribution unit 240, and the second battery 210 The terminal is connected to the (+) terminal, and each (-) terminal is connected to the (-) terminal.
- the charging port 195 is connected to the first power distribution unit 140, the (+) terminal of the charging port 195 is connected to the (+) terminal of the first power distribution unit 140, and the charging port ( The (-) terminal of 195) is connected to the (-) terminal of the first power distribution unit 140.
- the charging port 195 is disposed behind the middle frame 102 of the lower frame 101 in the lower traveling body 100 to enable charging while the upper rotating body 200 is rotating and working.
- the (+) terminal of the first battery 130 is connected to the (+) terminal of the second battery 210, and the (-) terminal of the first battery 130 is connected to the (+) terminal of the second battery 210. It is connected to the (-) terminal of the battery so that the voltage levels of the two batteries can be made the same, and charging can be performed through the charging port 195 using a high-voltage charger.
- the first battery 130 and the second battery 210 are connected in parallel to each other using the first power distribution unit 140, the slip ring 220, and the second power distribution unit 240. Charged with the same current.
- the electrical energy stored in the first and second batteries 130 and 210 connected in parallel is used with the same capacity.
- the first and second batteries 130 and 210 supply 50Kw each to the electric power part.
- the first battery 130 is mounted on the lower traveling body 100 and the second battery 210 is mounted on the upper rotating body 200, thereby increasing battery capacity and enabling high-load work to be performed for a long time. and the structural stability of the excavator is increased.
- Figure 8 is a rear view of the electric excavator according to the present invention
- Figure 9 is a front view of the electric excavator according to the present invention.
- the upper swing body 200 includes a second battery 210, a second power distribution unit 240, a second inverter 245, a swing motor 250, a third inverter 260, and a work motor ( 270), an upper frame 201 on which a hydraulic pump 290, etc. are placed, a cabin 202, a front work device 300, a counterweight 203, etc.
- the cabin 202 is a driving compartment of the excavator vehicle, and in this embodiment, it is disposed in a position biased to the left from the center of the upper swing body 200 in the plan view.
- a travel lever (not shown) that controls the forward and backward movement of the lower traveling body 100 and a joystick that operates the upper rotating body 200 are provided, and this joystick is generally located on the left side of the driver's seat. It consists of a joystick for turning the upper swing body 200 left and right, and a joystick provided on the right side of the driver's seat for operating the front work device 300.
- the upper frame 201 located on the left or right side of the cabin 202 in the upper swing body 200 (in this embodiment, the right side of the cabin 202 in the top or rear view) is adjacent to the cabin 202 on its upper part. It has a first upper surface portion 201a and a second upper surface portion 201b disposed on the other side opposite to one side of the first upper surface portion adjacent to the cabin.
- the second upper surface portion 201b is disposed on the right side of the first upper surface portion 201a in this embodiment, and is connected to the right end of the first upper surface portion 201a and lower than the first upper surface portion 201a in a stepped manner. It can be placed in a location. This may be because power components such as the bulky second battery 210 are placed on the first upper surface 201a or the counterweight 203. As shown in Figure 4, in this embodiment, a second battery 210, a second power control unit 240, a second inverter 245, and a converter ( 225), a swing motor 250, a slip ring 220, a third inverter 260, etc. may be disposed, and a work motor 270, a hydraulic pump 290, A hydraulic oil cooler 291, etc. may be placed.
- the second upper surface portion 201b may be formed as an inclined surface as shown in FIGS. 8 and 9 instead of being connected to the first upper surface portion 201a in a stepwise manner.
- the second upper surface portion 201b may have an inclined surface portion inclined downward in a direction away from the cabin 202.
- the starting point (A) of the second upper surface part (201b) connected to the first upper surface part (201a) in the upper rotating body (200) is about 0 m to several meters (cabin ( 201) is located between the distance (D) to the starting point (A) of the second upper surface portion (201b), and the second upper surface portion (201b) is inclined downward in a direction away from the cabin 201 to form a part of the upper frame 201. It may extend to the top edge of the side.
- the angle ⁇ formed by the second upper surface portion 201b with the horizontal line is greater than 0 degrees and less than 90 degrees.
- the downward angle ⁇ of the second upper surface portion 201b may be 20 degrees or more and 70 degrees or less, and may be 30 degrees or more and 60 degrees or less.
- the downward inclination angle ⁇ of the second upper surface portion 201b in the upper pivot 200 may be the same as the downward angle ⁇ of the inclined surface portion 204b of the counterweight 203, which will be described later.
- the downward inclination angle ⁇ of the second upper surface portion 201b in the upper pivot 200 may be greater than the downward angle ⁇ of the inclined surface portion 204b of the counterweight 203.
- the second upper surface portion 201b may be located on the same plane as the inclined surface portion 204b of the counterweight 203. That is, in the upper rotating body 200, the second upper surface portion 201b may be located on a plane extending laterally from the inclined surface portion 204b of the counterweight 203. Therefore, as shown in FIG. 8, the second upper surface portion 201b of the upper rotating body 200 may partially overlap with the inclined surface portion 204b of the counterweight 203 when viewed from the rear. Additionally, as another example, the second upper surface portion 201b of the upper rotating body 200 may be located below the inclined surface portion 204b of the counterweight 204 in the rear view.
- the upper frame 201 located on the right side of the cabin 202 has a downwardly inclined second upper surface portion 201b so that the driver can operate the excavator vehicle within the cabin 202 as shown in FIGS. 8 and 9. Safety can be ensured because dangerous objects or pedestrians located on the right can be seen directly through the field of view.
- the counterweight (203) is a balancing load body disposed at the rear of the upper swing body (200) to balance the weight, and is used by using the front work device (300) disposed in front of the upper swing body (200) of the excavator. It serves to prevent the excavator vehicle from tilting or tipping over due to excessive load applied to the front work device 300 during work.
- the counterweight 203 includes a top portion 204 and a rear portion 206 that are exposed to the outside.
- the second battery 210 may be disposed to partially overlap the counterweight 203 when viewed from above (on a plane) as shown in Figure 4, and a portion of the second battery 210 may be disposed on the counterweight 203. ) can also be installed.
- the upper surface portion 204 of the counterweight 203 includes a flat portion 204a located at the rear of the cabin 201 and an inclined surface portion 204b inclined downward from one end of the flat portion 204a in a direction away from the cabin 202. ) has.
- the starting point (B) of the inclined surface portion 204b connected to the flat portion 204a in the counterweight 203 is approximately 0 m to several meters from the right end of the cabin 202 when viewed from the rear (the inclined surface portion in the cabin 201 It is located between the distance (L) to the starting point (B) of (204b), and the inclined surface portion (204b) is inclined downward in a direction away from the cabin 201 and extends to the upper edge of the right side of the upper frame (201).
- the angle ⁇ formed by the inclined surface portion 204b of the counterweight 203 with the horizontal line (a line extending horizontally from the first point of the cabin 201) is greater than 0 degrees and less than 90 degrees.
- the downward angle ⁇ of the inclined surface portion 204b may be 20 degrees or more and 70 degrees or less, or 30 degrees or more and 60 degrees or less.
- the counterweight 203 has an inclined surface part 204b, so that visibility up to the right rear wheel 191 is ensured, so that the right side view is maintained when the excavator is reversing and driving on the road.
- the securing angle is widened, further ensuring safety.
- the rear portion 206 of the counterweight 203 is disposed on the rear of the upper surface portion 204, and has a rounded arc shape in a plan view, as shown in FIG. 4.
- the rear portion 206 of the counterweight 203 is formed to have a width smaller than the entire width of the upper swing body 200 of the electric excavator. Accordingly, the width of the counterweight 203 is also formed to be smaller than the width of the upper pivot body 200.
- the present invention provides an electric excavator that has an efficient arrangement structure and is driven by electrical energy.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Operation Control Of Excavators (AREA)
Abstract
Description
Claims (14)
- 하부 주행체와, 상기 하부 주행체에 선회가능하게 결합되는 상부 선회체를 포함하여 이루어지는 전동식 굴착기에 있어서,상기 하부 주행체에 배치되는 엔진;상기 하부 주행체에 배치되고 상기 엔진에 의해 전기를 생성하는 발전기;상기 하부 주행체에 배치되고 상기 발전기에 의해 충전되는 제1 배터리;상기 하부 주행체에 배치되고, 상기 제1 배터리로부터 전원이 공급되어 상기 하부 주행체를 이동시키기 위한 주행모터;상기 상부 선회체에 배치되고 상기 상부 선회체를 회전시키기 위한 선회모터; 및상기 상부 선회체에 배치되고 붐과 아암을 포함하는 프론트 작업장치를 작동시키기 위한 작업모터;를 포함하는 전동식 굴착기.
- 제1항에 있어서,상기 선회모터 또는 상기 작업모터는 상기 제1 배터리로부터 전원이 공급되는 것을 특징으로 하는 전동식 굴착기.
- 제1항에 있어서,상기 하부 주행체에 배치되고, 상기 제1 배터리와 상기 주행모터 간 전력공급을 위한 제1 전력분배유닛을 더 포함하는 전동식 굴착기.
- 제1항에 있어서,상기 하부 주행체의 전방에 배치되는 전방 차축:상기 전방 차축의 양측에 배치되는 전륜;상기 하부 주행체의 후방에 배치되는 후방 차축: 및상기 후방 차축의 양측에 배치되는 후륜;를 더 포함하여 상기 주행모터의 구동력에 의해 상기 전륜 및 후륜이 회전하는 전동식 굴착기.
- 제1항에 있어서,상기 상부 선회체에 배치되는 제2 배터리;를 더 포함하는 전동식 굴착기.
- 제1항에 있어서,상기 상부 선회체에 배치되고, 상기 제1 배터리로부터 전력을 상기 선회모터 및 상기 작업모터로 공급하기 위한 제2 전력분배유닛을 더 포함하는 전동식 굴착기.
- 제6항에 있어서,상기 제1 전력분배유닛과 상기 제2 전력분배유닛 사이에 배치되어 상기 제1 전력분배유닛과 상기 제2 전력분배유닛 간 전력공급을 위한 슬립링을 더 포함하는 전동식 굴착기.
- 제1항에 있어서,상기 상부 선회체에 배치되고 상기 작업모터에 의해 구동되는 유압펌프를 더 포함하는 전동식 굴착기.
- 제1항에 있어서,외부전원으로부터 상기 제1 배터리를 충전하기 위한 충전포트를 더 포함하는 전동식 굴착기.
- 제9항에 있어서,상기 상부 선회체에 배치되는 제2 배터리;를 더 포함하고,상기 충전포트에 의해 외부전원으로부터 상기 제1 배터리 및 상기 제2 배터리를 충전하는 전동식 굴착기.
- 제9항에 있어서,상기 충전포트는 상기 하부 주행체에 배치되는 전동식 굴착기.
- 제1항에 있어서,상기 상부 선회체 상에 캐빈과 반대쪽 타측면에 배치되어 상기 캐빈과 멀어지는 방향으로 경사진 경사면부를 더 포함하는 전동식 굴착기.
- 제12항에 있어서,상기 상부 선회체 후방에 배치되어 상기 캐빈과 멀어지는 방향으로 경사진 경사면부를 포함하는 카운터웨이트를 더 포함하는 전동식 굴착기.
- 제1항에 있어서,상기 하부 주행체는 하부 프레임을 더 포함하고,상기 하부 프레임의 일측에는 상기 제1 배터리가 배치되고,상기 하부 프레임에서 상기 제1 배터리의 반대쪽 타측에는 상기 엔진이 배치되는 전동식 굴착기.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23880096.5A EP4592458A4 (en) | 2022-10-17 | 2023-10-10 | ELECTRIC EXCAVATOR |
| KR1020257011239A KR20250061755A (ko) | 2022-10-17 | 2023-10-10 | 전동식 굴착기 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20220133493 | 2022-10-17 | ||
| KR10-2022-0133493 | 2022-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024085517A1 true WO2024085517A1 (ko) | 2024-04-25 |
Family
ID=90737898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2023/015501 Ceased WO2024085517A1 (ko) | 2022-10-17 | 2023-10-10 | 전동식 굴착기 |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4592458A4 (ko) |
| KR (1) | KR20250061755A (ko) |
| WO (1) | WO2024085517A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20240410132A1 (en) * | 2023-06-07 | 2024-12-12 | Yanmar Holdings Co., Ltd. | Electric Work Machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07166578A (ja) * | 1993-12-17 | 1995-06-27 | Hitachi Constr Mach Co Ltd | 建設機械 |
| JP2001012404A (ja) * | 1999-06-28 | 2001-01-16 | Kobe Steel Ltd | ハイブリッド建設機械 |
| JP2004098728A (ja) * | 2002-09-05 | 2004-04-02 | Hitachi Constr Mach Co Ltd | 作業車両 |
| JP2005289181A (ja) * | 2004-03-31 | 2005-10-20 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | バッテリ駆動式ショベルのバッテリ取付構造、及び該バッテリ駆動式ショベルに用いるバッテリユニット |
| KR20160052390A (ko) * | 2014-10-29 | 2016-05-12 | 제이씨 뱀포드 엑스카베이터즈 리미티드 | 작업용 기계 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3877901B2 (ja) * | 1999-03-31 | 2007-02-07 | コベルコ建機株式会社 | ショベル |
| DK178988B1 (en) * | 2015-12-15 | 2017-07-31 | Staal Ind Ivs | Selvkørende universalkøretøj |
| JP7063796B2 (ja) * | 2018-12-19 | 2022-05-09 | ヤンマーパワーテクノロジー株式会社 | 電動式建設機械 |
| JP7265504B2 (ja) * | 2020-06-10 | 2023-04-26 | 株式会社クボタ | 作業機 |
-
2023
- 2023-10-10 KR KR1020257011239A patent/KR20250061755A/ko active Pending
- 2023-10-10 EP EP23880096.5A patent/EP4592458A4/en active Pending
- 2023-10-10 WO PCT/KR2023/015501 patent/WO2024085517A1/ko not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07166578A (ja) * | 1993-12-17 | 1995-06-27 | Hitachi Constr Mach Co Ltd | 建設機械 |
| JP2001012404A (ja) * | 1999-06-28 | 2001-01-16 | Kobe Steel Ltd | ハイブリッド建設機械 |
| JP2004098728A (ja) * | 2002-09-05 | 2004-04-02 | Hitachi Constr Mach Co Ltd | 作業車両 |
| JP2005289181A (ja) * | 2004-03-31 | 2005-10-20 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | バッテリ駆動式ショベルのバッテリ取付構造、及び該バッテリ駆動式ショベルに用いるバッテリユニット |
| KR20160052390A (ko) * | 2014-10-29 | 2016-05-12 | 제이씨 뱀포드 엑스카베이터즈 리미티드 | 작업용 기계 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4592458A4 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20240410132A1 (en) * | 2023-06-07 | 2024-12-12 | Yanmar Holdings Co., Ltd. | Electric Work Machine |
| US12473713B2 (en) * | 2023-06-07 | 2025-11-18 | Yanmar Holdings Co., Ltd. | Electric work machine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4592458A4 (en) | 2026-01-21 |
| EP4592458A1 (en) | 2025-07-30 |
| KR20250061755A (ko) | 2025-05-08 |
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