WO2023112793A1 - 電動作業車 - Google Patents
電動作業車 Download PDFInfo
- Publication number
- WO2023112793A1 WO2023112793A1 PCT/JP2022/045087 JP2022045087W WO2023112793A1 WO 2023112793 A1 WO2023112793 A1 WO 2023112793A1 JP 2022045087 W JP2022045087 W JP 2022045087W WO 2023112793 A1 WO2023112793 A1 WO 2023112793A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery
- cover member
- working vehicle
- connecting portion
- electric working
- 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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- 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
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
-
- 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
-
- 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
-
- 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
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
- B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
-
- 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
-
- 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
- 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
- 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
- B60L53/18—Cables specially adapted for charging electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/0207—Wire harnesses
- B60R16/0215—Protecting, fastening and routing means therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0239—Electronic boxes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D49/00—Tractors
-
- 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
- B60L2200/00—Type of vehicles
- B60L2200/40—Working vehicles
Definitions
- the present invention relates to an electric work vehicle including a battery and a motor driven by electric power supplied from the battery.
- Patent Document 1 As an electric work vehicle as described above, for example, the one described in Patent Document 1 is already known.
- This electric working vehicle (“tractor” in Patent Document 1) can travel by traveling devices (“front wheels” and “rear wheels” in Patent Document 1) driven by a motor.
- the battery is provided with an input portion for inputting electric power to the battery, and a connection portion to which a charger can be connected, and the connection portion and the input portion are electrically connected. and electrical wiring that connects to. With this configuration, the battery can be charged using the charger.
- the length of the electrical wiring becomes relatively long.
- the input section is provided on one side of the battery and the connection section is provided near the other side of the battery, the length of the electrical wiring tends to be relatively long.
- An object of the present invention is to provide an electric working vehicle in which the length of the electrical wiring that electrically connects the connecting portion and the input portion can be relatively easily shortened.
- connection to which the charger can be connected tends to be relatively weak. Therefore, it is necessary to prevent the connecting portion from interfering with other objects except during charging work using the charger.
- An object of the present invention is to provide an electric working vehicle whose battery can be charged using a charger and whose manufacturing cost can be easily suppressed.
- the present invention is characterized by a battery, a motor driven by electric power supplied from the battery, a traveling device driven by the motor, and a traveling device provided on the side of the battery and receiving electric power to the battery. a connecting portion to which a charger can be connected; and electrical wiring that electrically connects the connecting portion and the input portion, wherein the connecting portion is provided with the input portion of the battery. It is provided at a position adjacent to the portion on the opposite side.
- connection section the distance between the connection section and the input section is shorter than in a configuration in which the connection section is arranged in the vicinity of the portion of the battery opposite to the side on which the input section is provided.
- the electrical wiring is arranged in a state that it does not overlap with the battery in plan view.
- the connecting portion is arranged in a state facing the lateral side of the fuselage on the lateral side of the fuselage.
- the operator can easily connect the charger to the connection part from the lateral side of the aircraft. As a result, it is possible to realize an electric working vehicle that facilitates charging of the battery.
- connection portion has a connection terminal portion to which a charger can be connected, and an openable/closable lid portion that covers the connection terminal portion.
- connection terminal section when the battery is not being charged, the connection terminal section is protected by the lid section by closing the lid section. As a result, it is possible to realize an electric working vehicle that can protect the connection terminal portion when the battery is not being charged.
- the lid is configured to be opened by swinging toward the battery.
- connection terminal portion when the lid is opened, the periphery of the connection terminal portion tends to be opened widely compared to the case where the lid is opened by swinging away from the battery. . This facilitates easy connection of the charger to the connection terminal portion.
- a cover member covering the battery is provided, the cover member is configured to be openable and closable by swinging around a horizontal axis, and the lid portion swings toward the horizontal axis. It is preferably configured to be opened by movement.
- the periphery of the connection terminal section is opened wider than in the case where the lid is opened by swinging away from the horizontal axis. easy to be This facilitates easy connection of the charger to the connection terminal portion.
- the input portion is provided on the side portion of the battery on the first direction side, and the connection portion is arranged in a state of being directed to the side opposite to the second direction side in a plan view.
- the electric wiring is arranged so as to fit in a region on the first direction side of the battery and on the second direction side of the connection portion.
- the electrical wiring when the worker stands facing the connection portion, the electrical wiring does not protrude forward from the connection portion as seen from the worker. Also, the electrical wiring is housed on the first direction side of the battery. Therefore, the operator's arm or the like is less likely to come into contact with the electrical wiring. As a result, the operator can easily perform the charging operation without worry.
- a radiator is provided, and the battery is arranged on the third direction side opposite to the first direction side with respect to the radiator, and in a plan view, the radiator in the region It is preferable that the electric wiring is arranged so as to be accommodated in the portion on the third direction side.
- the electric wiring is located on the third direction side of the radiator. Therefore, the operator's arm or the like is less likely to come into contact with the electrical wiring. As a result, the operator can easily perform the charging operation without worry.
- the electrical wiring is arranged so as to be accommodated below the upper end of the connecting portion.
- the electrical wiring is housed below the upper end of the connecting portion. Therefore, the operator's arm or the like is less likely to come into contact with the electrical wiring. As a result, the operator can easily perform the charging operation without worry.
- a solution for the problem [2] is as follows.
- a feature of the present invention is that a battery, a motor driven by electric power supplied from the battery, a traveling device driven by the motor, a cover member covering the battery, and a charger can be connected, and a connecting portion electrically connected to the battery, wherein the connecting portion is covered with the cover member.
- the connecting portion is protected by the cover member that covers the battery. Therefore, the connection portion is protected without providing a dedicated protective member for protecting the connection portion. This makes it easy to suppress an increase in manufacturing costs.
- an operating section on which an operator can get on is provided, the cover member is arranged in front of the operating section, and the battery is disposed at the left end and the right end of the space surrounded by the cover member. It is preferable that the connecting portion is arranged in front or behind the battery.
- the battery is provided so as to extend over the left end and the right end of the space surrounded by the cover member. Therefore, it is easy to mount a battery of relatively large size.
- the cover member is configured to be openable and closable by swinging around a swing axis extending in the lateral direction of the machine body, and the swing axis is positioned at the rear portion of the cover member.
- the connecting portion is arranged in front of the battery, and the connecting portion is exposed when the cover member is in the open state.
- the connecting portion can be accessed only by the operator swinging the cover member to open it. Therefore, the charging work using the charger and the maintenance work of the connecting portion can be easily performed.
- an operating section on which an operator can board is provided, the cover member is arranged in front of the operating section, a headlight is provided on the cover member, and the connection section It is preferably arranged below the upper edge of the headlight.
- connection part is located above the upper end of the headlight, the position of the connection part will be relatively high, so it is assumed that it will be difficult to connect the charger to the connection part.
- the connecting portion is arranged below the upper end of the headlight. Therefore, it is easy to avoid a situation in which it is difficult to connect the charger to the connection portion.
- a support member extending from the battery is provided, and the connecting portion is supported by the support member.
- batteries in electric working vehicles have relatively high strength.
- the connecting portion is supported by the relatively strong battery via the supporting member. This facilitates stably supporting the connecting portion.
- a radiator and a radiator frame that supports the radiator are provided, and the support member is connected to the radiator frame.
- the connecting portion is supported by the battery and the radiator frame via the supporting member. This facilitates stably supporting the connecting portion.
- connection portion an electric wiring that electrically connects the connection portion and the battery
- the support member has an eave-shaped portion positioned above the electric wiring
- the eave-like portion of the support member covers the electrical wiring from above. Thereby, a configuration in which the electric wiring is protected by the support member can be realized.
- the cover member is configured to be openable and closable by swinging around a swing axis extending in the left-right direction of the machine body, and includes a support arm covered with the cover member. is capable of swinging up and down about the base end of the support arm, and in a state in which the support arm is raised, the free end of the support arm is brought into contact with the cover member from below. It is preferable that the cover member can be supported in an open state, and the base end portion of the support arm is supported by the support member.
- the base end of the support arm is supported by the relatively strong battery via the support member. This facilitates stably supporting the support arm.
- FIG. 3 is a partially broken plan view showing the configuration of a connecting portion and the like; It is a left view which shows the structure, such as a connection part. It is a left view which shows the structure, such as a support member. It is a top view which shows the structure, such as a support member. It is a front view which shows the structure, such as a support member. It is a front view which shows the structure, such as a support member.
- a tractor A (corresponding to an "electric working vehicle” according to the present invention) includes left and right front wheels 10 (corresponding to a “traveling device” according to the present invention), left and right rear wheels 11 (corresponding to a “travel device” according to the present invention). (corresponding to a “running device”) and a cover member 12 .
- the tractor A is equipped with a body frame 2 and a driving section 3.
- the body frame 2 is supported by left and right front wheels 10 and left and right rear wheels 11 .
- the cover member 12 is arranged in the front part of the fuselage.
- the operating section 3 is provided behind the cover member 12 .
- the cover member 12 is arranged in front of the driving section 3 .
- the driving section 3 has a protective frame 30, a driver's seat 31, and a steering wheel 32.
- An operator can sit on the driver's seat 31 . This allows the operator to get on the driving section 3 .
- the steering wheel 32 By operating the steering wheel 32, the left and right front wheels 10 are steered. The operator can perform various driving operations in the driving section 3 .
- the tractor A is equipped with a driving unit 3 on which an operator can board.
- the tractor A also includes a battery 4 for running (corresponding to the "battery” according to the present invention), a motor M, a transmission device T, and a front transmission mechanism FT.
- the cover member 12 is configured to be swingable around an opening/closing axis Q (see FIGS. 2 and 4) (corresponding to the "horizontal axis” and “swing axis” according to the present invention) along the left-right direction of the machine body. ing. Thereby, the cover member 12 is configured to be openable and closable.
- the cover member 12 is configured to be openable and closable by swinging around the opening/closing axis Q. More specifically, the cover member 12 is configured to be openable and closable by swinging about an openable and closable axis Q extending in the lateral direction of the machine body.
- the opening/closing axis Q is positioned at the rear portion of the cover member 12 .
- the driving battery 4 is covered with the cover member 12 when the cover member 12 is in the closed state. That is, the tractor A includes a cover member 12 that covers the running battery 4 . As shown in FIG. 3 , the running battery 4 is provided so as to extend over the left end and the right end of the space surrounded by the cover member 12 . The running battery 4 then supplies power to the motor M. As shown in FIG.
- the motor M is arranged below the running battery 4 .
- the motor M is driven by electric power supplied from the running battery 4 .
- the driving force of the motor M is transmitted to the transmission device T. As shown in FIG.
- the transmission device T is arranged behind the driving battery 4 and behind the motor M. Further, the front transmission mechanism FT extends forward from the transmission device T. As shown in FIG. Then, the transmission device T changes the speed of the driving force received from the motor M and transmits it to the left and right rear wheels 11 . The driving force is also transmitted from the transmission device T to the left and right front wheels 10 via the front transmission mechanism FT. As a result, the left and right front wheels 10 and the left and right rear wheels 11 are driven.
- the tractor A includes a driving battery 4 and a motor M driven by electric power supplied from the driving battery 4 .
- the tractor A also has left and right front wheels 10 and left and right rear wheels 11 driven by a motor M. As shown in FIG.
- a link mechanism LN is provided at the rear of the tractor A.
- a working device such as a tiller can be connected to the link mechanism LN.
- the transmission device T is configured to be able to transmit part of the driving force received from the motor M to the working device. The work device is thereby driven.
- the tractor A can perform work with the work device while traveling on the left and right front wheels 10 and the left and right rear wheels 11 .
- a headlight 34 is provided on the cover member 12 .
- the headlight 34 is provided on the upper front portion of the cover member 12 .
- left and right side covers 35 are provided on the front part of the tractor A body.
- the side cover 35 has a grill 35a through which air can pass.
- a lower portion of the left rear portion and a lower portion of the right rear portion of the cover member 12 are notched along the outline of the side cover 35 .
- the tractor A has support arms 46 .
- the support arm 46 is covered with the cover member 12 when the cover member 12 is in the closed state.
- the tractor A has a support arm 46 covered with the cover member 12 .
- the cover member 12 has an arm linking portion 12b.
- the support arm 46 is configured to be vertically swingable around a base end portion 46a. Then, while the cover member 12 is kept open, the support arm 46 is raised, and the free end portion 46b is linked to the arm linking portion 12b so that the free end portion 46b is attached to the cover member 12 from below. It will be in contact. As a result, the support arm 46 is in a state of supporting the cover member 12 in the open state.
- the support arm 46 can swing up and down around the base end 46a of the support arm 46, and the free end 46b of the support arm 46 is attached to the cover member 12 when the support arm 46 is raised.
- the cover member 12 can be supported in the open state by contacting from below.
- the tractor A has a radiator 15. As shown in FIG.
- the tractor A also includes a reserve tank 5, an inverter 14, a cooling fan 17, an auxiliary battery 18, a voltage converter 19, and an oil cooler CL.
- the cover member 12 When the cover member 12 is closed, the reserve tank 5 , the radiator 15 , the auxiliary battery 18 , the voltage converter 19 and the oil cooler CL are covered with the cover member 12 .
- the inverter 14 is arranged below the running battery 4 . Inverter 14 converts the DC power from running battery 4 into AC power and supplies it to motor M. As shown in FIG.
- the reserve tank 5 can store cooling water.
- a radiator 15 and a water pump are included in the cooling water path in the tractor A.
- the cooling water is circulated through the cooling water path by pumping the cooling water with the water pump.
- the cooling water is cooled by passing through the radiator 15 .
- the cooling fan 17 is arranged behind the radiator 15 .
- the cooling fan 17 sends cooling air to the rear side.
- outside air is introduced into the inside of the cover member 12 through the outside air introduction portion 12 a provided in the front portion of the cover member 12 and passes through the radiator 15 .
- radiator 15 is cooled.
- the auxiliary machine battery 18 supplies power to various auxiliary machines. Electric power is also sent from the running battery 4 to the voltage converter 19 . Voltage converter 19 steps down the electric power from running battery 4 and supplies it to auxiliary equipment battery 18 .
- the hydraulic oil in the tractor A is cooled by passing through the oil cooler CL.
- the running battery 4 and the inverter 14 are supported by the body frame 2 .
- the inverter support portion 42 is supported by the body frame 2 .
- the inverter support portion 42 is a plate-like member that has a horizontal posture.
- the inverter 14 is placed on the inverter support portion 42 .
- the first support portion 43a and the second support portion 43b are supported by the inverter support portion 42.
- a third support portion 43 c is supported by the body frame 2 .
- the battery support part 44 is provided in the state supported by the 1st support part 43a, the 2nd support part 43b, and the 3rd support part 43c.
- the battery support portion 44 is a plate-like member that is horizontally positioned. Further, the battery support portion 44 is provided so as to extend over the left and right ends of the driving battery 4 .
- the running battery 4 is mounted on the battery support portion 44 .
- the reserve tank 5 , radiator 15 , cooling fan 17 , auxiliary battery 18 , voltage converter 19 and oil cooler CL are also supported by the body frame 2 .
- the radiator 15 is arranged on the front side (corresponding to the "first direction side” according to the present invention) of the running battery 4.
- the running battery 4 is arranged on the rear side (corresponding to the “third direction side” according to the present invention) opposite to the front side with respect to the radiator 15 .
- the radiator 15 is supported by a radiator frame 57 as shown in FIGS.
- the radiator frame 57 is configured in a portal shape that covers the left and right side portions and the upper side portion of the radiator 15 .
- the tractor A has a radiator frame 57 that supports the radiator 15.
- the tractor A includes an input harness 51 (corresponding to "electric wiring” according to the present invention) and a connecting portion 52. As shown in FIG.
- an input section 50 is provided on the front side of the running battery 4 .
- the connection portion 52 is provided at a position adjacent to the front side portion of the running battery 4 . That is, the connecting portion 52 is provided at a position adjacent to the portion of the driving battery 4 on the side where the input portion 50 is provided.
- the connecting portion 52 is provided in front of the driving battery 4 at a position adjacent to the left end of the front end portion of the driving battery 4 .
- the connecting portion 52 is arranged in front of the running battery 4 .
- the connecting portion 52 may be arranged behind the running battery 4 . That is, the connecting portion 52 is arranged in front or behind the running battery 4 .
- the input harness 51 electrically connects the connection portion 52 and the input portion 50 . That is, the tractor A includes an input harness 51 that electrically connects the connection portion 52 and the input portion 50 .
- connection portion 52 is electrically connected to the running battery 4 via the input harness 51 and the input portion 50 . That is, the tractor A includes an input harness 51 that electrically connects the connecting portion 52 and the running battery 4 .
- connection part 52 is arranged in the lateral side of the fuselage in a state of being directed to the lateral side of the fuselage. More specifically, the connecting portion 52 is arranged on the left side of the fuselage so as to face the left side of the fuselage. More precisely, the connecting portion 52 is directed toward the upper left side of the fuselage.
- the connecting portion 52 is arranged facing leftward in a plan view.
- the connecting portion 52 is arranged in a state of being directed to the side opposite to the right side (corresponding to the “second direction side” according to the present invention) in plan view.
- FIG. 2 shows the first upper end position P1.
- the first upper end position P1 is the position of the upper end of the headlight 34 when the cover member 12 is in the closed state.
- the connecting portion 52 is arranged below the first upper end position P1. That is, the connecting portion 52 is arranged below the upper end of the headlight 34 .
- the connecting portion 52 has a connecting terminal portion 52c.
- a charger (not shown) provided in a charging facility or the like can be connected to the connection terminal portion 52c.
- the standard of the charger and connection unit 52 is not particularly limited, but may be, for example, CHAdeMO.
- Electric power is supplied to the running battery 4 via the input harness 51 and the input section 50 by connecting the charger to the connection terminal section 52c. As a result, the running battery 4 is charged.
- the tractor A includes the input section 50 which is provided on the side of the driving battery 4 and receives electric power to the driving battery 4 .
- the tractor A also has a connecting portion 52 to which a charger can be connected. More specifically, the tractor A includes a connecting portion 52 to which a charger can be connected and which is electrically connected to the driving battery 4 .
- the connecting portion 52 is covered with the cover member 12 when the cover member 12 is in the closed state.
- the connecting portion 52 does not overlap the cover member 12 in side view. That is, when the cover member 12 is open, the connecting portion 52 is exposed.
- the connecting portion 52 has a housing 52a and a lid portion 52b.
- the connection terminal portion 52c is accommodated by the housing 52a and the lid portion 52b.
- the lid portion 52b covers the connection terminal portion 52c from the left side of the machine body. As shown in FIGS. 5, 6 and 8, the lid portion 52b can be opened and closed.
- connection portion 52 has a connection terminal portion 52c to which a charger can be connected, and an openable/closable cover portion 52b that covers the connection terminal portion 52c.
- the lid portion 52b in the closed state is indicated by solid lines. Also, the lid portion 52b in the open state is indicated by a phantom line.
- the lid portion 52b is configured to be opened by swinging rearward about the rear end portion of the lid portion 52b. That is, the lid portion 52b is configured to be opened by swinging toward the driving battery 4 side. In other words, the lid portion 52b is configured to be opened by swinging toward the opening/closing axis Q side.
- an output section 53 is provided on the front side of the running battery 4 .
- the output section 53 is arranged adjacent to the left side of the input section 50 .
- the output section 53 is electrically connected to the inverter 14 via an output harness 54 .
- Electric power from the running battery 4 is supplied to the inverter 14 via the output section 53 and the output harness 54 .
- the input harness 51 and the output harness 54 are arranged on the front side of the running battery 4 and on the right side of the connection portion 52 . Accordingly, as shown in FIGS. 3 and 6, the input harness 51 and the output harness 54 are arranged so as not to overlap the running battery 4 in a plan view.
- the input harness 51 is arranged so as not to overlap the running battery 4 in plan view.
- the input harness 51 and the output harness 54 are arranged so as to fit within the arrangement area AR (corresponding to the "area” according to the present invention) in plan view.
- the arrangement area AR is an area on the front side of the running battery 4 and on the right side of the connecting portion 52 .
- the input harness 51 is arranged so as to fit in the arrangement area AR on the front side of the running battery 4 and on the right side of the connecting portion 52 in plan view. In other words, the input harness 51 is arranged so as not to protrude from the arrangement area AR in plan view.
- FIG. 3 also shows the rear end position RE.
- the rear end position RE is the rear end position of the radiator 15 .
- the input harness 51 and the output harness 54 are arranged so as to be accommodated behind the rear end position RE in plan view.
- the connecting portion 52 is arranged on the rear side of the rear end position RE in plan view.
- the input harness 51 is arranged so as to be accommodated in a portion behind the radiator 15 in the arrangement area AR.
- the input harness 51 is arranged so as not to protrude from the portion behind the radiator 15 in the arrangement area AR in plan view.
- FIG. 7 also shows the second upper end position P2.
- the second upper end position P2 is the upper end position of the connecting portion 52 .
- the input harness 51 and the output harness 54 are arranged so as to be accommodated below the second upper end position P2.
- the input harness 51 is arranged so as to fit below the upper end of the connection portion 52 .
- the input harness 51 is arranged so as not to protrude above the upper end of the connection portion 52 .
- the tractor A includes a support member 70 extending from the driving battery 4. As shown in FIGS. The connection portion 52 is supported by the support member 70 . Below, the support member 70 will be described in detail.
- the support member 70 has a first stay 71 , a second stay 72 , a third stay 73 , a fourth stay 74 and a fifth stay 75 .
- the first stay 71 extends forward from the running battery 4 .
- a rear end portion of the first stay 71 is connected to a front end portion of the left side portion of the driving battery 4 .
- a front end portion of the first stay 71 is connected to the left portion of the radiator frame 57 .
- the support member 70 is connected to the radiator frame 57.
- the second stay 72 extends upward from the intermediate portion of the first stay 71 .
- the upper end of the second stay 72 is connected to the fifth stay 75 .
- the third stay 73 extends forward and downward from the running battery 4 .
- a rear end portion of the third stay 73 is connected to an upper left front portion of the driving battery 4 .
- a front end portion of the third stay 73 is connected to a fifth stay 75 .
- One end of the fourth stay 74 is connected to the top of the radiator frame 57 .
- the other end of the fourth stay 74 is connected to the fifth stay 75 .
- the fifth stay 75 is supported by the second stay 72, the third stay 73, and the fourth stay 74.
- the fifth stay 75 supports the connecting portion 52 .
- the fifth stay 75 has a canopy portion 75a.
- the eaves portion 75 a is an eaves-shaped portion of the fifth stay 75 and is positioned above the left end portion of the input harness 51 .
- the support member 70 has an eave-like portion located above the input harness 51 .
- the support member 70 has a sixth stay 76 .
- the sixth stay 76 extends upward and to the left from the fifth stay 75 .
- the base end portion 46a of the support arm 46 is connected to the extended end portion of the sixth stay 76 in a relatively rotatable state. Thereby, the base end portion 46 a of the support arm 46 is supported by the support member 70 .
- connection portion 52 and the base end portion 46a of the support arm 46 are arranged at the front left portion of the tractor A body. Therefore, after opening the cover member 12, the support arm 46 is operated so that the cover member 12 is supported by the support arm 46, the lid portion 52b is opened, and the charger is connected to the connection terminal portion 52c. The worker can easily perform the work up to the point without significantly moving the standing position.
- the holding portion 47 is supported by the eaves portion 75a.
- the holding portion 47 holds the support arm 46 in a horizontal posture by sandwiching the support arm 46 .
- the operator can remove the support arm 46 from the holding portion 47 and raise the support arm 46 .
- connection portion 52 is arranged in the vicinity of the portion of the running battery 4 opposite to the side on which the input portion 50 is provided in the front-rear direction of the vehicle body.
- the distance between the unit 52 and the input unit 50 tends to be short. Therefore, it is easy to make the length of the input harness 51 relatively short.
- connection portion 52 is protected by the cover member 12 that covers the running battery 4 . Therefore, the connection portion 52 is protected without providing a dedicated protective member for protecting the connection portion 52 . This makes it easy to suppress an increase in manufacturing costs.
- the tractor A may be equipped with an engine and configured in a hybrid system.
- the input harness 51 and the output harness 54 may overlap the running battery 4 in plan view.
- the connecting part 52 may be arranged at a position other than the lateral side of the aircraft.
- the connecting portion 52 may be arranged at the center in the left-right direction of the aircraft body.
- the orientation of the connecting portion 52 can be changed as appropriate.
- the connecting portion 52 may not have the lid portion 52b.
- the opening and closing mechanism of the lid portion 52b may be any mechanism.
- the lid portion 52b may be configured to be opened and closed by sliding, or may be configured to be detachable.
- the lid portion 52b may be configured to be opened by swinging away from the driving battery 4 .
- the lid portion 52b may be configured to be opened by swinging away from the opening/closing axis Q.
- the input harness 51 and the output harness 54 may be arranged so as to protrude from the arrangement area AR in plan view.
- the running battery 4 may be arranged on the front side, or may be arranged on the left or right side of the radiator 15 .
- the input harness 51 and the output harness 54 may be arranged so as to protrude above the upper end of the connection portion 52 .
- the connecting portion 52 may be arranged on the left or right side of the running battery 4 .
- the cover member 12 may be opened and closed by sliding back and forth or up and down.
- the connecting portion 52 may be arranged above the upper end of the headlight 34 .
- the support member 70 may not be provided.
- the support member 70 does not have to be connected to the radiator frame 57 .
- the support member 70 may not have the eaves portion 75a.
- the base end portion 46 a of the support arm 46 does not have to be supported by the support member 70 .
- first direction side is the front side
- present invention is not limited to this, and the "first direction side” may be the rear side, the left side, or the right side.
- the “third direction side” may be the front side, the right side, or the left side.
- the opening/closing axis Q does not have to be along the left-right direction of the fuselage.
- the opening/closing axis Q may extend along the longitudinal direction of the machine body.
- the connecting portion 52 does not have to be provided at a position adjacent to the portion of the driving battery 4 on which the input portion 50 is provided.
- the connecting portion 52 may be arranged behind the running battery 4 .
- the present invention can be used not only for tractors, but also for various electric work vehicles such as combine harvesters, rice transplanters, and construction work machines.
- driving unit 4 driving battery (battery) 10 front wheel (running device) 11 Rear wheel (running device) REFERENCE SIGNS LIST 12 cover member 15 radiator 34 headlight 46 support arm 46a base end 46b free end 50 input portion 51 input harness (electric wiring) 52 Connection Portion 52b Lid Portion 52c Connection Terminal Portion 57 Radiator Frame 70 Support Member A Tractor (Electric Working Vehicle) AR placement area (area) M Motor Q Opening/closing shaft center (horizontal shaft center, rocking shaft center)
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Abstract
Description
本発明の特徴は、バッテリと、前記バッテリから供給される電力により駆動するモータと、前記モータにより駆動される走行装置と、前記バッテリの側部に設けられると共に、前記バッテリへの電力が入力される入力部と、充電器を接続可能な接続部と、前記接続部と前記入力部とを電気的に繋ぐ電気配線と、を備え、前記接続部は、前記バッテリのうち前記入力部が設けられた側の部分と隣り合う位置に設けられていることにある。
本発明の特徴は、バッテリと、前記バッテリから供給される電力により駆動するモータと、前記モータにより駆動される走行装置と、前記バッテリを覆うカバー部材と、充電器を接続可能であると共に、前記バッテリと電気的に繋がれた接続部と、を備え、前記接続部は、前記カバー部材に覆われていることにある。
図1に示すように、トラクタA(本発明に係る「電動作業車」に相当)は、左右の前車輪10(本発明に係る「走行装置」に相当)、左右の後車輪11(本発明に係る「走行装置」に相当)、カバー部材12を備えている。
図2及び図3に示すように、トラクタAは、ラジエータ15を備えている。また、トラクタAは、リザーブタンク5、インバータ14、冷却ファン17、補機用バッテリ18、電圧コンバータ19、オイルクーラCLを備えている。カバー部材12が閉状態であるとき、リザーブタンク5、ラジエータ15、補機用バッテリ18、電圧コンバータ19、オイルクーラCLは、カバー部材12に覆われている。
図3から図7に示すように、トラクタAは、入力ハーネス51(本発明に係る「電気配線」に相当)、接続部52を備えている。
図3及び図7に示すように、入力ハーネス51及び出力ハーネス54は、走行用バッテリ4よりも前側に配置されており、且つ、接続部52よりも右側に配置されている。これにより、図3及び図6に示すように、入力ハーネス51及び出力ハーネス54は、平面視で走行用バッテリ4と重複しない状態で配置されている。
図5及び図6に示すように、トラクタAは、走行用バッテリ4から延出された支持部材70を備えている。接続部52は、支持部材70に支持されている。以下では、支持部材70について詳述する。
(1)トラクタAは、エンジンを備え、ハイブリッド式に構成されていても良い。
4 走行用バッテリ(バッテリ)
10 前車輪(走行装置)
11 後車輪(走行装置)
12 カバー部材
15 ラジエータ
34 ヘッドライト
46 支持アーム
46a 基端部
46b 遊端部
50 入力部
51 入力ハーネス(電気配線)
52 接続部
52b 蓋部
52c 接続端子部
57 ラジエータフレーム
70 支持部材
A トラクタ(電動作業車)
AR 配置領域(領域)
M モータ
Q 開閉軸芯(水平軸芯、揺動軸芯)
Claims (17)
- バッテリと、
前記バッテリから供給される電力により駆動するモータと、
前記モータにより駆動される走行装置と、
前記バッテリの側部に設けられると共に、前記バッテリへの電力が入力される入力部と、
充電器を接続可能な接続部と、
前記接続部と前記入力部とを電気的に繋ぐ電気配線と、を備え、
前記接続部は、前記バッテリのうち前記入力部が設けられた側の部分と隣り合う位置に設けられている電動作業車。 - 前記電気配線は、平面視で前記バッテリと重複しない状態で配置されている請求項1に記載の電動作業車。
- 前記接続部は、機体横側部において、機体横側方に向けられた状態で配置されている請求項1または2に記載の電動作業車。
- 前記接続部は、充電器を接続可能な接続端子部と、前記接続端子部を覆う開閉可能な蓋部と、を有している請求項1から3の何れか一項に記載の電動作業車。
- 前記蓋部は、前記バッテリ側へ揺動することによって開くように構成されている請求項4に記載の電動作業車。
- 前記バッテリを覆うカバー部材を備え、
前記カバー部材は、水平軸芯周りに揺動することによって開閉可能に構成されており、
前記蓋部は、前記水平軸芯側へ揺動することによって開くように構成されている請求項4または5に記載の電動作業車。 - 前記バッテリの第1方向側の側部に前記入力部が設けられており、
前記接続部は、平面視で第2方向側とは反対側に向けられた状態で配置されており、
平面視において、前記バッテリよりも前記第1方向側且つ前記接続部よりも前記第2方向側の領域に収まるように、前記電気配線が配置されている請求項1から6の何れか一項に記載の電動作業車。 - ラジエータを備え、
前記バッテリは、前記ラジエータに対して、前記第1方向側の反対側である第3方向側に配置されており、
平面視において、前記領域のうち前記ラジエータよりも前記第3方向側の部分に収まるように、前記電気配線が配置されている請求項7に記載の電動作業車。 - 前記接続部の上端よりも下側に収まるように、前記電気配線が配置されている請求項1から8の何れか一項に記載の電動作業車。
- バッテリと、
前記バッテリから供給される電力により駆動するモータと、
前記モータにより駆動される走行装置と、
前記バッテリを覆うカバー部材と、
充電器を接続可能であると共に、前記バッテリと電気的に繋がれた接続部と、を備え、
前記接続部は、前記カバー部材に覆われている電動作業車。 - オペレータが搭乗可能な運転部を備え、
前記カバー部材は、前記運転部の前方に配置されており、
前記バッテリは、前記カバー部材により囲まれた空間の左端部と右端部とに亘る状態で設けられており、
前記接続部は、前記バッテリの前方または後方に配置されている請求項10に記載の電動作業車。 - 前記カバー部材は、機体左右方向に沿う揺動軸芯周りに揺動することによって開閉可能に構成されており、
前記揺動軸芯は、前記カバー部材の後部に位置しており、
前記接続部は、前記バッテリの前方に配置されており、
前記カバー部材が開状態であるとき、前記接続部は露出している請求項10または11に記載の電動作業車。 - オペレータが搭乗可能な運転部を備え、
前記カバー部材は、前記運転部の前方に配置されており、
前記カバー部材にヘッドライトが設けられており、
前記接続部は、前記ヘッドライトの上端よりも下側に配置されている請求項10から12の何れか一項に記載の電動作業車。 - 前記バッテリから延出された支持部材を備え、
前記接続部は、前記支持部材に支持されている請求項10から13の何れか一項に記載の電動作業車。 - ラジエータと、
前記ラジエータを支持するラジエータフレームと、を備え、
前記支持部材は、前記ラジエータフレームに連結されている請求項14に記載の電動作業車。 - 前記接続部と前記バッテリとを電気的に繋ぐ電気配線を備え、
前記支持部材は、前記電気配線の上方に位置する庇状の部分を有している請求項14または15に記載の電動作業車。 - 前記カバー部材は、機体左右方向に沿う揺動軸芯周りに揺動することによって開閉可能に構成されており、
前記カバー部材に覆われた支持アームを備え、
前記支持アームは、前記支持アームの基端部を中心に上下揺動可能であり、且つ、前記支持アームが立ち上がった状態で前記支持アームの遊端部を前記カバー部材に下側から接当させることにより前記カバー部材を開状態で支持可能に構成されており、
前記支持アームの基端部は、前記支持部材に支持されている請求項14から16の何れか一項に記載の電動作業車。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22907320.0A EP4450310A4 (en) | 2021-12-14 | 2022-12-07 | ELECTRIC WORK VEHICLE |
| US18/734,523 US20240317079A1 (en) | 2021-12-14 | 2024-06-05 | Electric work vehicle |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021-202899 | 2021-12-14 | ||
| JP2021202899A JP7546543B2 (ja) | 2021-12-14 | 2021-12-14 | 電動作業車 |
| JP2021-202898 | 2021-12-14 | ||
| JP2021202898A JP7555326B2 (ja) | 2021-12-14 | 2021-12-14 | 電動作業車 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US18/734,523 Continuation US20240317079A1 (en) | 2021-12-14 | 2024-06-05 | Electric work vehicle |
Publications (1)
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| WO2023112793A1 true WO2023112793A1 (ja) | 2023-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2022/045087 Ceased WO2023112793A1 (ja) | 2021-12-14 | 2022-12-07 | 電動作業車 |
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| Country | Link |
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| US (1) | US20240317079A1 (ja) |
| EP (1) | EP4450310A4 (ja) |
| WO (1) | WO2023112793A1 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4538103A1 (en) * | 2023-10-13 | 2025-04-16 | Kubota Corporation | Charging ports and circuit for electric vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020059163A1 (ja) * | 2018-09-20 | 2020-03-26 | 株式会社小松製作所 | 作業車両及び車両充電システム |
| JP2021000953A (ja) | 2019-06-24 | 2021-01-07 | 株式会社クボタ | 電動作業車 |
| WO2021193300A1 (ja) * | 2020-03-26 | 2021-09-30 | 株式会社日立建機ティエラ | 電動式建設機械 |
| JP2021177690A (ja) * | 2020-05-08 | 2021-11-11 | 住電機器システム株式会社 | コネクタ付きケーブル、及び充放電システム |
-
2022
- 2022-12-07 WO PCT/JP2022/045087 patent/WO2023112793A1/ja not_active Ceased
- 2022-12-07 EP EP22907320.0A patent/EP4450310A4/en active Pending
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- 2024-06-05 US US18/734,523 patent/US20240317079A1/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020059163A1 (ja) * | 2018-09-20 | 2020-03-26 | 株式会社小松製作所 | 作業車両及び車両充電システム |
| JP2021000953A (ja) | 2019-06-24 | 2021-01-07 | 株式会社クボタ | 電動作業車 |
| WO2021193300A1 (ja) * | 2020-03-26 | 2021-09-30 | 株式会社日立建機ティエラ | 電動式建設機械 |
| JP2021177690A (ja) * | 2020-05-08 | 2021-11-11 | 住電機器システム株式会社 | コネクタ付きケーブル、及び充放電システム |
Non-Patent Citations (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4538103A1 (en) * | 2023-10-13 | 2025-04-16 | Kubota Corporation | Charging ports and circuit for electric vehicle |
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| US20240317079A1 (en) | 2024-09-26 |
| EP4450310A4 (en) | 2026-01-14 |
| EP4450310A1 (en) | 2024-10-23 |
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