Battery electric dump truck

Abstract

To provide a battery electric dump truck.SOLUTION: The battery-electric dump truck comprising a loading platform pivotally mounted on the frame, at least one cooling circuit, and a power supply unit including at least a battery unit 33 and a temperature regulation unit coupled to each other to form the power supply unit, the power supply unit supplying electric energy to at least one electric propulsion motor of the battery-electric dump truck; The climate control unit comprises at least a first part of at least one cooling circuit comprising a valve and a connector for closing and separating the first part of the cooling circuit of the power supply unit from a second part of the cooling circuit, wherein the valve and the connector are configured such that the power supply unit can be removed from the battery-powered electric dump truck while the first part of the cooling circuit and / or the second part of the cooling circuit remains at least partially filled with cooling liquid.SELECTED DRAWING: Figure 2B

Description

[Technical Field]

[0001] The present invention relates to battery-electric dump trucks and methods associated with battery-electric dump trucks. [Background technology]

[0002] Dump trucks are typically powered by an internal combustion engine, such as a diesel engine. In most applications, the diesel engine drives a generator, which in turn drives an electric traction motor to drive the dump truck. An example of such a diesel-electric dump truck is described in Liebherr Mining Equipment Newport News Co.'s brochure, "T 284 - Liebherr Mining Truck, LME-11481630-enGB08-2022."

[0003] In order to reduce the environmental impact of dump trucks, attempts have been made to power them using batteries. Battery-electric dump trucks and battery-electric trucks are known, for example, from documents CN218505646 U, WO2022036364 A1, US11220167 B2 and US11541739 B2. Documents US 2023 / 0339308 A1 and WO 2023074203 A1 show dump trucks equipped with hybrid hydrogen fuel cell / battery-based power plants. Summary of the Invention

[0004] SUMMARY OF THE INVENTION It is an object of the present invention to provide an improved battery electric dump truck and related methods.

[0005] In a first aspect, the present disclosure provides a method for manufacturing a semiconductor device comprising: 1. A battery electric dump truck, comprising: The frame and a loading platform pivotably mounted on the frame; A power supply unit including a battery, the power supply unit supplies electrical energy to at least one electric traction motor of the battery electric dump truck; A power supply unit; Equipped with The frame includes two side beams extending in a longitudinal direction of the battery electric dump truck and an upper bridge member connecting the two side beams in a width direction of the battery electric dump truck; The upper bridge member includes side pillars extending upward from the side beams and an upper cross beam connecting the side pillars. It features a battery-electric dump truck. According to a first aspect, the power supply unit extends longitudinally of the battery-electric dump truck between the side beams and below the upper cross beam. In particular, the power supply unit may be disposed in the space between the side beams as an integral structure passing under the cross beam, which preferably supports the deck.

[0006] In a second aspect, the present disclosure provides a method for manufacturing a semiconductor device comprising: 1. A battery electric dump truck, comprising: The frame and a loading platform pivotably mounted on the frame; A power supply unit including a battery, the power supply unit supplies electrical energy to at least one electric traction motor of the battery electric dump truck; A power supply unit; Equipped with The frame includes two side beams extending in a longitudinal direction of the battery electric dump truck; the power supply unit extends between the side beams and is mounted on a cantilever mount that projects from an inner sidewall of the side beam; It features a battery-electric dump truck.

[0007] In a third aspect, the present disclosure provides a method for manufacturing a semiconductor device comprising: 1. A battery electric dump truck, comprising: The frame and a loading platform pivotably mounted on the frame; a battery unit, a temperature control unit, and / or a power distribution cabinet coupled together to form a power supply unit; Equipped with the power supply unit supplies electrical energy to at least one electric traction motor of the battery electric dump truck; The power supply unit is attached to the frame as an integrated unit. It features a battery-electric dump truck. In particular, the power supply unit is mounted on the frame as an integrated structure comprising the power supply unit, the temperature control unit and the power distribution cabinet.

[0008] In a fourth aspect, the present disclosure provides a method for manufacturing a semiconductor device comprising: A battery electric dump truck, The frame and a loading platform pivotably mounted on the frame; A power supply unit including a battery, the power supply unit supplies electrical energy to at least one electric traction motor of the battery electric dump truck; A power supply unit; a charging interface unit provided separately from the power supply unit and connected to the power supply unit by electrical wiring; A battery electric dump truck is provided. In particular, the charging interface may provide a connection point for the power supply unit to a remote, modular and / or side beam mounted power system to supply energy to the power supply unit's battery.

[0009] In a fifth aspect, the present disclosure provides a method for manufacturing a semiconductor device comprising: 1. A battery electric dump truck, comprising: The frame and a loading platform pivotably mounted on the frame; A power supply unit including a battery, the power supply unit supplies electrical energy to at least one electric traction motor of the battery electric dump truck; A power supply unit; Equipped with the temperature adjustment unit comprises at least a first portion of a coolant circuit; the cooling circuit includes a valve and a connector that isolates and separates the first portion of the coolant circuit in the power supply unit from a second portion of the coolant circuit located in the battery electric dump truck; the valves and connectors are configured to allow the power supply unit to be removed from the battery electric dump truck while the first portion of the coolant circuit and / or the second portion of the cooling circuit remain at least partially filled with coolant. It features a battery-electric dump truck. Thus, the valve allows the power system to be removed while full of liquid, providing a quick change-out time.

[0010] In a sixth aspect, the present disclosure provides a method for manufacturing a semiconductor device, comprising: 1. A method for installing a power supply unit in a battery electric dump truck, comprising: The battery electric dump truck includes a frame and a bed pivotably mounted on the frame, The frame includes two side beams extending in a longitudinal direction of the battery electric dump truck and an upper bridge member connecting the two side beams in a width direction of the battery electric dump truck; The upper bridge member includes a side pillar extending upward from the side beam and an upper cross beam connecting the side pillars, the power supply unit includes a battery and supplies electrical energy to at least one electric traction motor of the battery electric dump truck; The method comprises: inserting the power supply unit from a front side of the battery electric dump truck into an installation space between the side beams and below the upper cross beam along a longitudinal direction of the battery electric dump truck; The method includes:

[0011] In a seventh aspect, the present disclosure provides a method for manufacturing a semiconductor device comprising: 1. A method for removing a power unit from a battery electric dump truck, comprising: The battery electric dump truck includes a frame and a bed pivotably mounted on the frame, the power supply unit includes at least a battery unit and a temperature control unit coupled to each other to form the power supply unit; the power supply unit supplies electrical energy to at least one electric traction motor of the battery electric dump truck; the temperature adjustment unit comprises at least a first portion of a coolant circuit; The method comprises: isolating and isolating the first portion of the coolant circuit of the power supply unit from a second portion of the coolant circuit located in the battery electric dump truck; and removing the power unit from the battery-electric dump truck while maintaining the first portion of the coolant circuit and / or the second portion of the cooling circuit at least partially filled with coolant. The method includes:

[0012] The battery-electric dump truck of the present disclosure may be used particularly at mining sites, particularly for surface mining operations.

[0013] The battery electric dump truck of the present disclosure may have a maximum payload capacity of 50 metric tons or more, particularly 100 metric tons or more, particularly 200 metric tons or more, particularly 300 metric tons or more.

[0014] The battery-electric dump truck of the present disclosure may have an unladen weight of 50 metric tons or more, particularly 100 metric tons or more, and particularly 200 metric tons or more.

[0015] Embodiments of the present disclosure will now be described with reference to the following drawings: [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is a perspective view of an embodiment of a battery electric dump truck. [Figure 2A] 2A is a perspective view of a frame of the battery electric dump truck embodiment of FIG. 1. FIG. [Figure 2B] 2B is a perspective view of the frame of the battery electric dump truck embodiment of FIG. 1 with a power supply unit and an additional battery unit mounted to the frame. [Figure 3] FIG. 3 is an enlarged perspective view of the power supply unit and additional battery unit shown in FIG. 2B. [Figure 4] FIG. 4 is a perspective view of the power supply unit and additional battery unit with the fire extinguishing system and charging interface unit. [Figure 5] FIG. 5 is an embodiment of the charging interface unit shown in FIG. [Figure 6] FIG. 6 is a perspective view of the power supply unit and additional battery unit with a cooling circuit. DETAILED DESCRIPTION OF THE INVENTION

[0017] In a typical aspect, a battery-electric dump truck embodiment of the present disclosure includes a frame 10, a bed 20 pivotally mounted to the frame 10, and a power supply unit 30 including a battery that provides electrical energy to at least one electric traction motor 4 of the battery-electric dump truck.

[0018] Details of the battery-electric dump truck and frame embodiment shown in Figures 1 and 2A are described below, but aspects of the disclosure described below may be implemented in other embodiments of the battery-electric dump truck or frame.

[0019] In an embodiment, the frame or chassis 10 is a steel structure formed by welding together steel elements, some of which may be cast elements and others may be steel plate. The beams of the frame may have a box, T- or H-shaped cross section.

[0020] In this embodiment, the power supply unit 30 does not include an internal combustion engine, so the dump truck is a fully electric dump truck. Furthermore, the battery of the dump truck may be the only on-board power source of the dump truck. However, the dump truck may additionally include a trolley system to supply electrical energy via a power line and the trolley system.

[0021] In an embodiment, the power supply unit 30 comprises a battery unit 33 for supplying power to an electric traction motor of the dump truck. The power supply unit may further comprise a power distribution cabinet 31 and / or a temperature control unit 32.

[0022] In an embodiment, the battery electric dump truck shown in Figure 1 comprises front wheels 2 and rear wheels 3, at least the rear wheels being driven by a traction motor 4. The front wheels 2 are steered by a steering system.

[0023] At a level above the front wheels 2, the battery electric dump truck comprises a deck 5 supporting a driver's cab 8 and / or a control panel 9. Further functional units can be mounted on the deck 5.

[0024] In manual mode, the battery electric dump truck is controlled by the driver from the cab 8 using manual control elements such as a steering wheel, accelerator pedal and / or brake pedal to control the propulsion and steering systems of the battery electric dump truck, thereby controlling the speed and direction of the battery electric dump truck.

[0025] The battery-electric dump truck may have an autonomous mode, in which a controller of the battery-electric dump truck autonomously controls the propulsion and steering systems of the battery-electric dump truck, thereby controlling the speed and direction of the battery-electric dump truck. For example, the controller may be configured to autonomously control the battery-electric dump truck along a mission from a loading location to an unloading location, or vice versa. The controller may further be configured to autonomously control the battery-electric dump truck to navigate to a charging station and autonomously perform charging operations in conjunction with the charging station. In the autonomous mode, the controller of the battery-electric dump truck can receive a mission to be performed by the battery-electric dump truck by communicating with a central mission controller.

[0026] The controller may include a microprocessor and a computer program stored in non-transitory memory, the computer program comprising code that, when executed on the microprocessor, provides the functionality described above and below. The controller may be connected to input devices located in the cab of the dump truck and may control actuators of the dump truck, such as steering actuators and electric traction motor 4, for controlling steering and propulsion.

[0027] At the front of the battery electric dump truck there is provided a radiator unit 40. Furthermore, in front of the radiator unit 40 a stair element 80 leads down to the deck 5.

[0028] As part of several aspects of the present disclosure described in more detail below, in an embodiment, the battery-electric dump truck includes a power supply unit 30 and an additional battery unit 35 positioned between the front wheels 2 and rear wheels 3 of the frame 10.

[0029] A frame of a battery-electric dump truck is shown in Figure 2A. As part of several aspects of the present disclosure described in more detail below, the frame of the battery-electric dump truck includes two side beams 11 that extend longitudinally of the battery-electric dump truck. In an embodiment, the side beams extend from the front end to the rear end of the dump truck, and the bed is pivotally mounted on pivot mounts 12 located at the rear ends of the side beams.

[0030] As seen in FIG. 2B, as part of several aspects of the present disclosure described in more detail below, power supply unit 30 is positioned between side beams 11 of the frame.

[0031] As part of several aspects of the present disclosure described in more detail below, the frame 10 of the battery-electric dump truck includes an upper bridge member connecting two side beams 11 across its width, the upper bridge member including side pillars 15 extending upward from the side beams 11 and an upper cross beam 16 connecting the side pillars.

[0032] Furthermore, in the embodiment, at the same longitudinal position of the frame, the side beams are connected by lower bridge members formed by lower extensions of the side pillars connected by lower cross beams 17. Thus, the upper and lower bridge members together form a frame structure that extends in the vertical and width directions of the battery electric dump truck.

[0033] The deck and cab are mounted on the upper cross beam 16 of the upper bridge member.

[0034] Furthermore, connection points 14 for the suspension system of the front wheels 2 are provided on the pillars 15. The suspension system of the rear wheels is attached to connection points 13, 13' provided on the side beams 11.

[0035] In this embodiment, the side beams 11 are connected in the width direction by at least a first rear cross member 19 and a second rear cross member 19'.

[0036] In this embodiment, the side beams 11 have a substantially triangular shape in a side view extending between the front end, the first rear cross member 19, and the second rear cross member 19'. The long side of the triangular shape faces upward, the first short side faces downward, and the second short side faces rearward. Thus, the long side faces upward in the fore-and-aft direction.

[0037] In this embodiment, the first rear cross member 19 is located at the rear corner adjacent to the pivot mount 12 of the cargo bed, and the second rear cross member 19' is located at the lower corner of the triangular shape and has pins at its side ends that support the lower ends of dump hoist cylinders for accommodating the cargo bed 20.

[0038] In this embodiment, the front ends of the side beams 11 are connected by a front cross member 18 .

[0039] Described below are aspects of the present disclosure that may be implemented in an embodiment with the battery-electric dump truck shown in FIG. 1 and the frame shown in FIG. 2A, or other embodiments of the battery-electric dump truck.

[0040] 2B , in a first aspect of the present disclosure, a frame 10 includes two side beams 11 extending in the longitudinal direction of the battery electric dump truck and an upper bridge member connecting the two side beams 11 in the width direction, the upper bridge member includes side pillars 15 extending upward from the side beams 11 and an upper cross beam 16 connecting the side pillars 15, and the power supply unit 30 extends in the longitudinal direction of the battery electric dump truck between the side beams 11 and below the upper cross beam 16. This configuration allows for a simple, stable, and compact structure.

[0041] In an embodiment, the frame 10 further comprises a lower bridge member connecting the two side beams 11 in the width direction and comprising a lower cross beam 17, the upper bridge member and the lower bridge member forming a frame structure, and the power supply unit 30 extends in the longitudinal direction of the battery electric dump truck through the frame structure above the lower cross member 17 and below the upper cross member 16.

[0042] In an embodiment, the power supply unit 30 comprises a front portion and a rear portion, the rear portion having a first upper surface extending below the level of the upper cross beam 16, and the front portion having a second upper surface extending in front of and / or at a level above the upper cross beam 16. This allows the power supply unit to have a large volume but still be able to extend below the cross beam 16.

[0043] In this embodiment, a step portion exists between the first upper surface and the second upper surface, and this step portion extends in the up-down direction in front of the upper cross member 16.

[0044] In an embodiment, the battery unit 33 forms the rear section and extends below the upper cross beam 16. The temperature adjustment unit 32 forms at least a part of the front section, in particular at least an upper part of the front section, and is arranged in front of the cross beam 16. In particular, the temperature adjustment unit 32 is arranged above the battery unit 33, and therefore has an upper surface that extends above the upper surface of the battery unit 33. The rear surface of the temperature adjustment unit forms a stepped portion. Below the temperature adjustment unit and in front of the battery unit, a power distribution cabinet 31 is arranged.

[0045] 2A and 2B, in a second aspect of the present disclosure, a frame 10 includes two side beams 11 extending in the longitudinal direction of the battery-electric dump truck, and a power supply unit 30 mounted on a cantilever mount 50 extending between the side beams 11 and protruding from the inner sidewall of the side beams 11. This allows the power supply unit to be mounted to the frame by a simple and stable structure, which allows for shortened mounting and dismounting times.

[0046] 3, in this embodiment, the power supply unit 30 includes side brackets 75, 76 arranged in the width direction thereof, and the side brackets 75, 76 are connected to the cantilever mount 50. In particular, the side brackets 75, 76 may be connected to the cantilever mount 50 by bolts and rubber bearings.

[0047] In an embodiment, the side brackets 75, 76 have a first plate-like element connected to the side of the power supply unit and a second plate-like element extending vertically in the horizontal direction therefrom for connection to the cantilever mount 50. In an embodiment, the cantilever mount 50 has a bearing surface extending horizontally from the inner sidewall of the side beam 11 on which the second plate-like element of the side brackets 75, 76 is mounted.

[0048] In an embodiment, the power supply units 30 are mounted on front and rear cantilever mounts 50 that are spaced apart along the length of the battery-electric dump truck. In an embodiment, the front and rear cantilever mounts have different structures, although they may be identical in structure. Side brackets 75, 76 attached to the front and rear cantilever mounts have different structures, although they may be identical in structure.

[0049] As described above, in the embodiment, the frame 10 includes an upper bridge member connecting two side beams in the width direction, the upper bridge member including side pillars 15 extending upward from the side beams 11 and an upper cross beam 16 connecting the side pillars, the front cantilever mount 50 being positioned in front of the bridge member, and the rear cantilever mount 50 being positioned behind the bridge member.

[0050] In this embodiment, the side brackets 75, 76 are provided on the battery unit 33, so that the temperature control unit 32 and the power distribution cabinet 31 are mounted to the frame only via the battery unit 33.

[0051] In an embodiment, the power supply unit is mounted to the frame 10 only via the side brackets 75, 76 and cantilever mounts.

[0052] In an embodiment, as described above, the front ends of the side beams are connected by the front cross member 18. In an embodiment, as shown in FIG. 2B, the power unit 30 is positioned at a height above the front cross member 18. Furthermore, a front portion of the power unit may be positioned above the front cross member 18.

[0053] 2B and 3, in a third aspect of the present disclosure, a battery-electric dump truck includes a battery unit 33, a temperature-regulating unit 32, and / or a power distribution cabinet 31 coupled together to form a power supply unit 30, which supplies electrical energy to at least one electric traction motor of the battery-electric dump truck, and which is mounted to the frame 10 as an integrated structural unit. Providing the power supply unit as an integrated structural unit allows for easy and time-efficient installation and removal of the battery unit 33, the temperature-regulating unit 32, and / or the power distribution cabinet 31 as a single unit.

[0054] In the embodiment, the frame 10 comprises two side beams 11 extending along the length of the battery electric dump truck, with the power unit 30 extending in the space between the side beams.

[0055] In an embodiment, as shown in FIGS. 2B and 3, the power distribution cabinet 31 is located in front of the power supply unit.

[0056] In an embodiment, the power distribution cabinet 31 is accessible from the front of the battery electric dump truck, as can be seen from Figure 1. In particular, a front casing element of the power distribution cabinet 31 may form part of the front face of the battery electric dump truck.

[0057] Additionally, the power distribution cabinet 31 includes a high voltage disconnect switch that is operable from the front of the battery electric dump truck.

[0058] In the embodiment, as described above, the frame 10 includes two side beams 11 extending in the longitudinal direction of the battery electric dump truck and an upper bridge member connecting the two side beams in the width direction, and the upper bridge member includes side pillars 15 extending upward from the side beams and an upper cross beam 16 connecting the side pillars.

[0059] In the embodiment, as described above, the power supply unit extends longitudinally of the battery-electric dump truck between the side beams and below the upper cross member 16. Furthermore, the temperature control unit 32 is located in front of the cross beam 16 at the height of the cross beam. Furthermore, the power supply unit 33 extends rearward below the cross beam 16.

[0060] In the embodiment, only the power supply unit 33 is directly mounted on the frame, and the temperature adjustment unit 32 and the power distribution cabinet 31 are only mounted on the frame via the power supply unit 33 .

[0061] In the embodiment, the power supply unit 33 is disposed behind the power distribution cabinet 31. The temperature control unit 32 is disposed above the power distribution cabinet 31 and the power supply unit 33. The temperature control unit 32 extends from the front of the power supply unit 30 to a position between the front and rear of the battery unit 33 in the longitudinal direction of the battery electric dump truck.

[0062] The first, second, and third aspects of the present disclosure may be implemented independently of one another by the battery-electric dump truck and / or frame embodiments described above, or any other battery-electric dump truck.

[0063] The first, second, and third aspects of the present disclosure can be realized in any possible combination of the described aspects. In an embodiment, all aspects are provided in combination. However, a combination of only two aspects is equally included in the present disclosure.

[0064] In a possible embodiment of any one or any possible combination of the first, second, and third aspects of the present disclosure, the power supply unit 30 is insertable into the frame 10 from the front of the battery electric dump truck.

[0065] In particular, when installing the power supply unit, the power supply unit may be inserted into the frame from the front as an integrated unit and / or may be connected to the frame via bracket 75 and / or cantilever mount 50.

[0066] In an embodiment, the power unit is insertable into and / or removable from the front between the deck 5 and the front cross member 18 .

[0067] The following aspects of the present disclosure may be implemented independently of the first, second, and third aspects of the present disclosure, or in combination with them, or in any possible combination.

[0068] In accordance with a fourth aspect of the present disclosure, as shown in Figures 1, 4, and 5, a charging interface unit 90 is provided separate from the power supply unit 30 and is connected to the power supply unit by electrical wiring 95. This improves access to the charging interface unit 90 because the charging interface unit can be placed on the battery electric dump truck in a location that is more easily accessed for charging, independent of the power supply unit.

[0069] In particular, the charging interface unit 90 may be located on the battery electric dump truck so that it may be easily accessed by an autonomous charging station when operating in an autonomous mode.

[0070] In an embodiment, as seen in FIG. 1, charging interface unit 90 is mounted to frame 10 .

[0071] In an embodiment, the charging interface unit 90 is mounted to the front end of a battery-electric dump truck, which may reduce the length of the electrical wiring 95.

[0072] In this embodiment, the charging interface unit 90 faces outward in the width direction and is therefore accessible from the side of the battery electric dump truck. Therefore, if a charging connection is made at the front, the battery electric dump truck does not need to back out of the charging station after charging, and can simply pass by the charging station and depart after charging.

[0073] In the embodiment, the charging interface unit 90 is mounted to the outer side wall of the front end of one of the side beams 11 .

[0074] 5, the charging interface unit 90 includes a hinged door 92 with an automated actuator 93. Thus, in an autonomous mode, the dump truck controller can autonomously open the hinged door for charging.

[0075] In an embodiment, the charge interface unit 90 includes at least one charge port 91 that is cooled by the charge interface unit's closed-loop, self-contained cooling circuit, which may be, inter alia, a dielectric cooling circuit.

[0076] In an embodiment, the dielectric cooling circuit of the charge interface unit is connected to the refrigerant circuit of the temperature regulation unit 32 of the power supply unit by a refrigerant line 94 and / or a heat exchanger.

[0077] 6 , according to a fifth aspect of the present disclosure, a battery-electric dump truck includes at least one coolant circuit 100, 105, and a power supply unit including at least one battery unit 33 and a temperature control unit 32 coupled together to form a power supply unit 30, the power supply unit providing electrical energy to at least one electric traction motor of the battery-electric dump truck, the temperature control unit 32 including at least one first portion of the at least one coolant circuit 100, 105. According to the fifth aspect, the cooling circuit 100, 105 includes valves and connectors 101, 102 for isolating and separating the first portion of the coolant circuit of the power supply unit from a second portion of the coolant circuit located on the battery-electric dump truck, the valves and connectors being configured such that the power supply unit can be removed from the battery-electric dump truck while the first portion of the coolant circuit 100, 105 and / or the second portion of the cooling circuit 100, 105 remain at least partially filled with coolant. Therefore, the first and / or second portions of the cooling circuit do not need to be completely drained of coolant in order to remove the power supply unit, which reduces removal time and simplifies removal.

[0078] In a first variant of embodiment, a cooling circuit 105 connects the temperature regulation unit 32 to a radiator unit 40 arranged on a battery-electric dump truck.

[0079] In this variation, the valves and connectors may be configured to allow the power unit 30 to be removed from the battery-electric dump truck while the radiator unit 40, and therefore the second portion of the cooling circuit 105, remains filled with coolant. In contrast, the first portion of the cooling circuit 105 within the temperature regulation unit 32 has a smaller volume than the first portion of the circuit and is drained of coolant.

[0080] In a second variant of the embodiment, the cooling circuit 100 connects the temperature adjustment unit 32 to an additional battery unit 35 arranged in the battery-electric dump truck. In particular, as described above, the additional battery unit 35 may be arranged separately from the power supply unit 30 in a position between the front and rear wheels of the frame. The temperature adjustment unit 32 may also control the temperature of the additional battery unit 35 via the cooling circuit 100.

[0081] In a second variant, the valves and connectors 101, 102 are configured so that the power supply unit 30 can be removed from the battery-electric dump truck while the temperature regulation unit 32 and / or the additional battery unit 35 remain filled with coolant.

[0082] In particular, there are valves and connectors 101 located in the portion of the cooling circuit that connects the cooling lines located in the power supply unit 30 to the cooling lines located in the battery electric dump truck. They may be configured such that when the power supply unit 30 is removed, the portions of the cooling lines located in the power supply unit 30 and the temperature regulation unit 32 remain filled with coolant.

[0083] Furthermore, valves and connectors 102 are disposed in the portion of the cooling circuit that connects the cooling lines disposed in the additional battery unit 35 to the cooling lines disposed in the battery-electric dump truck. They may be configured such that the portion of the cooling lines disposed in the additional battery unit 35 can be isolated from the remaining cooling lines. Thus, upon removal of the power supply unit 30, the portion of the cooling lines disposed in the additional battery unit 35 remains filled with coolant. Furthermore, upon removal of the additional battery unit 35, the portion of the cooling lines disposed in the additional battery unit 35 remains filled with coolant as well. Thus, only the portion of the cooling lines extending between the power supply unit and the additional battery unit of the battery-electric dump truck need be drained of coolant.

[0084] The temperature regulation unit may provide liquid cooling for the power supply unit and additional battery unit via cooling circuit 100. An integrated pump may circulate the coolant in the cooling circuit. The temperature regulation unit may include a condenser disposed within cooling circuit 100, which in turn is liquid cooled by radiator unit 40 via cooling circuit 105.

[0085] As shown in FIG. 4 , in an embodiment according to any one of the preceding aspects and any combination of these aspects, the battery-electric dump truck further includes a battery fire extinguishing system. The battery fire extinguishing system includes a fire extinguishing agent storage tank 110 disposed on the battery-electric dump truck, which is connected to the power supply unit 30 and the additional battery unit 35 by an extinguishing agent line 111. The battery fire extinguishing system may be configured to flood at least a portion of the battery unit 33 and / or the additional battery unit 35 in the event of a fire. A valve is disposed in the extinguishing agent line to control the flow of the extinguishing agent. The extinguishing agent may be a liquid.

[0086] In the following, methods according to the present disclosure will be described. These methods are independent of the above-mentioned aspects. However, in embodiments of the present disclosure, the methods may be applied to the dump truck according to the above-mentioned first, second, third, fourth, and / or fifth aspects.

[0087] According to a sixth aspect of the present disclosure, there is provided a method for installing a power supply unit 30 on a battery-electric dump truck, the battery-electric dump truck including a frame and a bed pivotally mounted on the frame, the frame including two side beams extending in the longitudinal direction of the battery-electric dump truck and an upper bridge member connecting the two side beams in the width direction, the upper bridge member including side pillars extending upward from the side beams and an upper cross beam connecting the side pillars, and the power supply unit including a battery and supplies electric energy to at least one electric traction motor of the battery-electric dump truck. According to the sixth aspect, the method includes a step of inserting the power supply unit from a front of the battery-electric dump truck along the longitudinal direction of the battery-electric dump truck into an installation space provided between the side beams and below the upper cross beam. This enables simple and efficient installation of the power supply unit.

[0088] The method according to the sixth aspect may be used in particular with a battery electric dump truck according to the first aspect described above.

[0089] In an embodiment, after insertion of the power supply unit, the power supply unit may be connected to a cantilever mount disposed on an inner sidewall of the side beam of the frame. Thus, the method according to the sixth aspect may be particularly used with the battery electric dump truck according to the second aspect described above.

[0090] In an embodiment, to remove the power unit 30, the power unit is disconnected from the cantilever mount and / or removed towards the front of the battery electric dump truck.

[0091] In this embodiment, the power supply unit is inserted from the front by moving it into the installation space between the side beams 11 between the deck 5 and the front cross member 18, and / or the power supply unit is removed from the front by moving it out of the installation space between the side beams 11. Therefore, neither the deck 5 nor the front cross member 18 needs to be removed to install or remove the power supply unit.

[0092] Such installation and / or removal may be performed as already described above for various aspects of the battery-electric dump truck of the present disclosure.

[0093] According to a seventh aspect of the present disclosure, there is provided a method for removing a power supply unit 30 from a battery-electric dump truck, the battery-electric dump truck including a frame and a bed pivotally mounted to the frame, the power supply unit including at least a battery unit 33 and a temperature control unit 32 coupled to each other to form the power supply unit 30, the power supply unit 30 providing electrical energy to at least one electric traction motor of the battery-electric dump truck, and the temperature control unit 32 including at least a first portion of a coolant circuit 100, 105. According to the seventh aspect, the method includes isolating and isolating the first portion of the coolant circuit 100, 105 of the power supply unit from a second portion of the coolant circuit disposed in the battery-electric dump truck, and removing the power supply unit 30 from the battery-electric dump truck while maintaining the first portion of the coolant circuit 100, 105 and / or the second portion of the coolant circuit at least partially filled with coolant.

[0094] The method according to the seventh aspect may in particular be carried out as described above with respect to the fifth aspect. Furthermore, it may be carried out in a battery electric dump truck according to the fifth aspect.

[0095] In one embodiment, the method includes installing a new power supply unit 30 by inserting the new power supply unit and connecting a first portion of a coolant circuit of the new power supply unit with a second portion of a cooling circuit disposed in the battery-electric dump truck, wherein the first portion of the coolant circuit and / or the second portion of the cooling circuit are filled with coolant prior to the step of connecting the first portion and the second portion.

[0096] In particular, the second part of the cooling circuit, located in the battery-electric dump truck, may still be filled with refrigerant.

[0097] Furthermore, the first portion of the cooling circuit located in the power supply unit may be pre-filled before the power supply unit is installed.

Claims

1. 1. A battery electric dump truck, comprising: The frame and a loading platform pivotably mounted on the frame; at least one cooling circuit; A power supply unit including at least a battery unit and a temperature control unit coupled together to form a power supply unit, the power supply unit supplies electrical energy to at least one electric traction motor of the battery electric dump truck. A power supply unit; Equipped with the temperature adjustment unit comprises at least a first portion of the at least one cooling circuit; the cooling circuit includes a valve and a connector that isolates and separates the first portion of the cooling circuit in the power supply unit from a second portion of the cooling circuit located in the battery electric dump truck; the valve and connector are configured to allow the power supply unit to be removed from the battery electric dump truck while the first portion of the cooling circuit and / or the second portion of the cooling circuit remain at least partially filled with coolant. Battery electric dump truck.

2. the cooling circuit connects the temperature adjustment unit to a radiator unit disposed on the battery electric dump truck.

10. The battery electric dump truck of claim 1.

3. the valve and connector are configured so that the power supply unit can be removed from the battery electric dump truck while the radiator unit remains filled with coolant.

3. The battery electric dump truck of claim 2.

4. the cooling circuit connects the temperature adjustment unit to an additional battery unit disposed on the battery electric dump truck.

10. The battery electric dump truck of claim 1.

5. the valves and connectors are configured so that the power supply unit can be removed from the battery electric dump truck while the temperature control unit and / or the additional battery unit remain filled with coolant.

5. The battery electric dump truck of claim 4.

6. the power supply unit comprises the battery unit, the temperature control unit, and a power distribution cabinet coupled together to form the power supply unit; The power supply unit is mounted on the frame as an integrated structural unit.

10. The battery electric dump truck of claim 1.

7. the power distribution cabinet is disposed in front of the power supply unit; the power distribution cabinet is accessible from the front of the battery electric dump truck and / or includes a high voltage cut-off switch operable from the front of the battery electric dump truck; 7. The battery electric dump truck of claim 6.

8. the frame includes two side beams extending in a longitudinal direction of the battery electric dump truck; The power supply unit extends between the side beams.

10. The battery electric dump truck of claim 1.

9. The frame includes an upper bridge member connecting the two side beams in the width direction, The upper bridge member includes a side pillar extending upward from the side beam and an upper cross beam connecting the side pillars, the power supply unit extends in the longitudinal direction of the battery electric dump truck and below the upper cross beam; 9. The battery electric dump truck of claim 8.

10. 1. A method for removing a power unit from a battery electric dump truck, comprising: The battery electric dump truck includes a frame and a bed pivotably mounted on the frame, the power supply unit includes at least a battery unit and a temperature control unit coupled to each other to form the power supply unit; the power supply unit supplies electrical energy to at least one electric traction motor of the battery electric dump truck; the temperature adjustment unit comprises at least a first portion of a cooling circuit; The method comprises: isolating and isolating the first portion of the cooling circuit of the power supply unit from a second portion of the cooling circuit located in the battery electric dump truck; removing the power unit from the battery electric dump truck while maintaining the first portion of the cooling circuit and / or the second portion of the cooling circuit at least partially filled with coolant; A method comprising:

11. a method of installing a new power supply unit by inserting the new power supply unit and connecting a first portion of the cooling circuit of the new power supply unit with a second portion of the cooling circuit located on the battery-electric dump truck; the first portion of the cooling circuit and / or the second portion of the cooling circuit are filled with a cooling liquid prior to the step of connecting the first portion and the second portion. The method of claim 10.

12. for removing the power supply unit from the battery electric dump truck of claim 1 ; The method of claim 10.

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