Cab arrangement and electric excavator

Abstract

The application provides a machine cabin arrangement and an electric excavator, and relates to the technical field of excavators. The machine cabin arrangement comprises: a rotating platform, which has at least two adjacent installation areas along its width direction, and at least one installation area is used for installing a cab; a power assembly, which at least spans two installation areas and is arranged away from the cab; a power transmission assembly, which is arranged in the middle of at least one installation area; and a power driving assembly, which is arranged on an installation area adjacent to the cab, and the power transmission assembly and the power driving assembly are both arranged on the side of the power assembly facing the cab. According to the application, the power assembly, the power transmission assembly and the power driving assembly are all arranged in parallel on the rotating platform, so that the power assembly does not block and hinder the power transmission assembly and the power driving assembly along the direction of gravity due to the stacked arrangement, and when overhauling, the power transmission assembly and the power driving assembly can be overhauled without removing the power assembly, so that the overhauling is facilitated.

Description

Technical Field

[0001] This application relates to the field of electric excavator technology, and in particular to a cab layout structure and an electric excavator. Background Technology

[0002] An electric excavator is an excavator driven by electricity. Its core components include a power unit (such as a battery pack and hydraulic tank), a power drive unit (such as a motor and controller), and a power transmission unit (such as a swing motor and hydraulic main valve). To meet the endurance requirements of electric excavators, the power unit is relatively large, while the power drive unit and power transmission unit are relatively small.

[0003] In related technologies, the power unit is located at the rear of the excavator cab (e.g., the hydraulic oil tank and battery are arranged side by side on the rear side of the excavator slewing platform away from the excavator cab, and the battery pack is used as a counterweight), while the power drive unit and power transmission unit are located below the power unit (e.g., the motor and controller are located below the battery pack).

[0004] However, since the battery pack covers the motor and controller, it obstructs their view, making maintenance of the motor and controller inconvenient as the battery pack must be removed first. Utility Model Content

[0005] This application provides a nacelle layout structure and an electric excavator to solve the problem that the battery pack covers the motor and controller, thus obstructing the motor and controller, making maintenance of the motor and controller inconvenient as the battery pack must be removed first.

[0006] To achieve the above objectives, the technical solution of this application is as follows:

[0007] On one hand, this application provides a cabin layout structure, including: a slewing platform having at least two adjacent mounting areas along its width direction, at least one mounting area for mounting a cockpit; a power assembly spanning at least two mounting areas and disposed away from the cockpit; and a power transmission assembly disposed in the middle of at least one mounting area.

[0008] The power drive assembly is located in the mounting area adjacent to the cab, and both the power transmission assembly and the power drive assembly are located on the side of the power assembly facing the cab.

[0009] In one possible implementation, the cabin layout structure in this application embodiment includes a power assembly comprising a battery pack, a high-voltage distribution group, and a low-voltage distribution component. The battery pack spans at least two mounting areas, the high-voltage distribution group is positioned above the battery pack, and the low-voltage distribution component is positioned above the power drive assembly or the battery pack.

[0010] In one possible implementation, the cabin layout structure in this application embodiment includes a high-voltage distribution group comprising a high-voltage distribution box, a multi-in-one high-voltage controller, and a BMS box.

[0011] The power unit also includes a battery temperature management component, which includes a coolant reservoir and a heater. Both the coolant reservoir and the heater are located above the battery pack. The coolant reservoir is located between the multi-functional high-voltage controller and the BMS box, and the heater is located on one side of the BMS box.

[0012] In one possible implementation, the engine room layout structure in this application embodiment includes a power transmission component comprising a rotary motor and a hydraulic main valve, with the rotary motor located on the side of the hydraulic main valve facing the cockpit.

[0013] In one possible implementation, the cabin layout structure in this application embodiment includes a power drive assembly comprising a battery, a drive motor, a hydraulic controller, a power controller, a hydraulic main pump, and a hydraulic oil tank arranged sequentially along the length of the slewing platform.

[0014] In one possible implementation, the cabin layout structure in this application embodiment further includes a first heat sink and a second heat sink, which are arranged opposite to each other and respectively correspond to two installation areas. The power transmission component and the power drive component are both located at least partially between the first heat sink and the second heat sink.

[0015] In one possible implementation, the cabin layout structure in this application embodiment includes an oil radiator and a liquid storage tank, a heat exchanger, a water pump, and a compressor arranged sequentially along the length direction of the outer edge of the installation area.

[0016] The first heat dissipation component includes a water radiator, an oil radiator, and a water radiator arranged opposite each other on both sides of the rotating platform.

[0017] In one possible implementation, the cabin layout structure in this application embodiment further includes a counterweight that spans at least two mounting areas and is located on the side of the power unit away from the cockpit.

[0018] In one possible implementation, the cabin layout structure in this application embodiment further includes a charging port, which is disposed on the slewing platform and located below the cockpit along the direction of gravity.

[0019] This application also provides an excavator, including a body and a cabin arrangement structure of any of the above embodiments disposed on the body.

[0020] The present application provides a cab layout structure and an electric excavator. The cab layout structure includes: a slewing platform with at least two adjacent mounting areas along its width, at least one mounting area for mounting the cab; a power assembly spanning at least two mounting areas and positioned away from the cab; a power transmission assembly located in the middle of at least one mounting area; and a power drive assembly located in the mounting area adjacent to the cab, with both the power transmission assembly and the power drive assembly located on the side of the power assembly facing the cab. By dividing the slewing platform into at least two mounting areas, with the power assembly spanning at least two mounting areas and positioned away from the cab, and with the power transmission assembly and power drive assembly both located on the side of the power assembly facing the cab, the present application ensures that the power assembly, power transmission assembly, and power drive assembly are arranged parallel to each other on the slewing platform. This avoids the obstruction and hindrance of the power transmission assembly and power drive assembly along the direction of gravity caused by stacked arrangement. During maintenance, the power transmission assembly and power drive assembly can be maintained without removing the power assembly, thus facilitating maintenance of the power transmission assembly and power drive assembly. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0022] Figure 1 This is a structural schematic diagram of the cabin layout provided in the embodiments of this application;

[0023] Figure 2 for Figure 1 A structural schematic diagram of the mid-cabin layout from another perspective;

[0024] Figure 3 for Figure 1 A structural diagram of the installation area in the middle cabin layout.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100 - Rotary platform; 110 - Installation area;

[0027] 200 - Power assembly; 210 - Battery pack; 220 - High-voltage distribution group; 221 - High-voltage distribution box; 222 - Multi-function high-voltage controller; 223 - Coolant reservoir; 224 - BMS box; 225 - Heater; 230 - Low-voltage distribution component;

[0028] 300 - Power transmission assembly; 310 - Rotary motor; 320 - Hydraulic main valve;

[0029] 400 - Power drive assembly; 410 - Battery; 420 - Drive motor; 430 - Hydraulic controller; 440 - Power controller; 450 - Main hydraulic pump; 460 - Hydraulic oil tank;

[0030] 510 - First heat sink; 520 - Second heat sink; 521 - Liquid reservoir; 522 - Heat exchanger; 523 - Water pump; 524 - Compressor; 525 - Oil radiator;

[0031] 600 - Counterweight; 700 - Charging port.

[0032] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0033] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0034] It should be noted that in the description of the embodiments of this application, the terms "upper", "lower", "inner", "outer" and other terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description, and are not intended to indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this application.

[0035] Furthermore, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] Excavators, such as electric excavators, are excavators driven by electricity. Their core components include power components (such as battery packs and hydraulic tanks), power drive components (such as motors and controllers), and power transmission components (such as swing motors and hydraulic main valves). To meet the endurance requirements of electric excavators, the power components are relatively large, while the power drive components and power transmission components are relatively small.

[0038] In related technologies, the power unit is located at the rear of the excavator cab (e.g., the hydraulic oil tank and battery are arranged side by side on the rear side of the excavator slewing platform away from the excavator cab, and the battery pack is used as a counterweight), while the power drive unit and power transmission unit are located below the power unit (e.g., the motor and controller are located below the battery pack).

[0039] However, in existing technologies, the battery pack covers the motor and controller, obstructing their access and hindering maintenance. Maintenance of the motor and controller requires first removing the battery pack, making the process inconvenient. Understandably, the battery pack acts as a counterweight on top, with the motor and controller directly below, forming a "stacked" structure. This layout completely obscures the motor and controller, lacking independent maintenance space. Access to the lower components requires removing the upper layer, and disassembling the battery pack involves disconnecting electrical and mechanical connections, resulting in numerous and complex steps.

[0040] In view of the above, this application provides a cab layout structure and an electric excavator. The cab layout structure includes: a slewing platform having at least two adjacent mounting areas along its width, at least one mounting area for mounting a cab; a power assembly spanning at least two mounting areas and disposed away from the cab; a power transmission assembly disposed in the middle of at least one mounting area; and a power drive assembly located in the mounting area adjacent to the cab, with both the power transmission assembly and the power drive assembly located on the side of the power assembly facing the cab. This application divides the slewing platform into at least two installation areas, with the power assembly spanning at least both installation areas and positioned away from the cab. The power transmission and drive assemblies are both located on the side of the power assembly facing the cab. This arrangement ensures that the power assembly, power transmission, and drive assemblies are all arranged parallel to each other on the slewing platform, avoiding the obstruction and hindrance of the power transmission and drive assemblies by the power assembly along the direction of gravity due to stacked arrangement. During maintenance, the power transmission and drive assemblies can be inspected without removing the power assembly, thus facilitating the maintenance of the power transmission and drive assemblies.

[0041] The following is combined with Figures 1 to 3 The present application will be described in detail with reference to specific embodiments.

[0042] This application provides a cabin layout structure, including: a slewing platform 100, the slewing platform 100 having at least two adjacent mounting areas 110 along its width direction, at least one mounting area 110 for mounting a cockpit; a power assembly 200, the power assembly 200 spanning at least two mounting areas 110 and disposed away from the cockpit; a power transmission assembly 300, the power transmission assembly 300 disposed in the middle of at least one mounting area 110; and a power drive assembly 400, the power drive assembly 400 located on the mounting area 110 adjacent to the cockpit, both the power transmission assembly 300 and the power drive assembly 400 being located on the side of the power assembly 200 facing the cockpit.

[0043] Specifically, there are two installation areas 110. The driver's cab can be located in one installation area 110, such as the right-hand installation area 110 or the left-hand installation area 110. Alternatively, the driver's cab can span both installation areas 110, located in the middle of the two installation areas 110. For example, the slewing platform 100 is divided into two adjacent installation areas 110 along its width (left-right direction), such as a left-hand installation area (e.g., area A) and a right-hand installation area (e.g., area B). The driver's cab is located at the front end of the right-hand installation area or the front end of the left-hand installation area, spanning the middle of the two installation areas (areas A and B). The driver's cab is fixed at the junction of the two areas, making the driver's cab centrally located. It is understandable that the cab can be set on one side, such as in the left-side mounting area (e.g., area A) or the right-side mounting area (e.g., area B), to meet the needs of different operating habits (e.g., left-hand drive / right-hand drive) or specific working scenarios. The cab can be set in the center to balance the center of gravity of the slewing platform 100, making the slewing platform 100 more stable. It also makes it easier to provide the driver with a symmetrical and open field of vision, and to make the observation of the sides and rear of the cab more balanced.

[0044] The power unit 200 provides power to drive the slewing platform 100 to move or rotate. The power unit 200 spans at least two mounting areas 110, which helps to balance the overall center of gravity of the machine and provides sufficient power to the electric excavator, improving its range. For example, the battery pack 210 of the power unit 200 spans the rear of the left mounting area (Area A) and the rear of the right mounting area (Area B). The battery pack 210 can be arranged in a through-type layout, extending along the width of the slewing platform (100), with both ends close to the boundaries of Area A and Area B. Of course, a gap can be left between the two ends of the battery pack 210 and the boundaries of the mounting areas 110 to facilitate the installation of protective components to protect the battery pack 210.

[0045] The power drive assembly 400 includes a drive motor 420 and a controller. The drive motor 420 converts electrical energy into mechanical energy, such as converting electrical energy provided by the power assembly 200 into rotational mechanical energy to directly drive the hydraulic main pump 450. The controller can be a power controller 440, which can receive operating commands (such as operator commands) to adjust the speed or torque of the drive motor 420. The power transmission assembly 300, such as a swing motor 310 and a hydraulic main valve 320, distributes energy to drive the electric excavator to perform actions. For example, the swing motor 310 receives high-pressure oil output from the hydraulic main pump 450 to drive the swing platform 100 of the electric excavator to rotate, and the hydraulic main valve 320 distributes the flow of hydraulic oil according to operating commands, such as flowing to the boom system or the swing motor 310 of the electric excavator.

[0046] This application divides the slewing platform 100 into at least two installation areas 110, with the power assembly 200 spanning at least both installation areas 110 and positioned away from the cab. The power transmission assembly 300 and the power drive assembly 400 are both located on the side of the power assembly 200 facing the cab. This arrangement ensures that the power assembly 200, power transmission assembly 300, and power drive assembly 400 are all arranged in parallel on the slewing platform 100, avoiding the obstruction and hindrance of the power transmission assembly 300 and power drive assembly 400 by the power assembly 200 along the direction of gravity due to stacked arrangement. During maintenance, the power transmission assembly 300 and power drive assembly 400 can be maintained without removing the power assembly 200, thus facilitating the maintenance of the power transmission assembly 300 and power drive assembly 400.

[0047] The power assembly 200 includes a battery pack 210, a high-voltage distribution group 220, and a low-voltage distribution component 230. The battery pack 210 spans at least two mounting areas 110, ensuring that the rotary platform 100 is subjected to uniform force and balanced load, avoiding force concentration on the rotary platform 100 due to unilateral force. The high-voltage distribution group 220 is located above the battery pack 210, which helps to shorten the high-voltage transmission path, such as shortening the high-voltage wiring harness between the high-voltage distribution group 220 and the battery pack 210. The low-voltage distribution component 230 is located above the power drive assembly 300 or the battery pack 210, which helps to shorten the low-voltage and high-voltage transmission paths.

[0048] The low-voltage distribution unit 230 is a power module that provides low-voltage power. The low-voltage distribution unit 230 is arranged above the battery pack 210 or above the power drive assembly 300. If the low-voltage distribution unit 230 is located in front of and above the hydraulic oil tank 460 in the right area, the space above the hydraulic oil tank 460 can be utilized, and the hydraulic oil tank 460 can be used as a protective component to reduce interference between the high-voltage distribution group 220 and the low-voltage distribution unit 230. Alternatively, the low-voltage distribution unit 230 can be located on one side of the high-voltage distribution group 220 above the battery pack 210, which facilitates the integration of the low-voltage distribution unit 230 and the high-voltage distribution group 220, making the layout compact and reducing scattered wiring.

[0049] The battery pack 210 spans at least two mounting areas 110 and is located in the rear area of ​​the cabin. The battery pack 210 can use standardized square battery modules arranged sequentially along the width of the cabin, with both ends extending to the opposite boundaries of the turning platform 100. By spanning two mounting areas 110 and arranging them along the width of the cabin, the narrow space at the rear of the cabin can be fully utilized, avoiding the space waste caused by the traditional single-sided layout. This allows the limited cabin area to accommodate more standardized square battery modules, increasing the overall capacity of the battery pack 210. On the other hand, it ensures that the load of the battery pack 210 is evenly distributed on the turning platform 100, reducing the deformation of the turning platform 100 caused by unilateral forces. In addition, the use of standardized square battery modules is compatible with generalized production processes, reducing manufacturing costs. The modular arrangement of the standardized square battery modules along the width also facilitates later maintenance and replacement, improving assembly efficiency.

[0050] The high-voltage distribution group 220 is located above the battery pack 210, which facilitates the maintenance of the high-voltage distribution group 220.

[0051] The high-voltage distribution group 220 includes a high-voltage distribution box 221, a multi-functional high-voltage controller 222, and a BMS box 224. By centrally arranging the high-voltage distribution box 221, the multi-functional controller 222, and the BMS box 224, the high-voltage wiring harness is shortened, and the response efficiency is improved. The power assembly 200 also includes a battery temperature management component, which includes a coolant reservoir 223 and a heater 225. Both the coolant reservoir 223 and the heater 225 are located above the battery pack 210. The coolant reservoir 223 is located between the multi-functional high-voltage controller 222 and the BMS box 224, and can simultaneously dissipate heat from both the multi-functional high-voltage controller 222 and the BMS box 224, thereby improving heat dissipation efficiency. The heater 225 is located on one side of the BMS box 224, so that the control commands of the BMS box 224 can quickly control the heater 225. It is understandable that the battery pack 210, the coolant reservoir 223, and the heater 225 are all electrically connected to the BMS box 224. The BMS box 224 can detect the temperature data of the battery pack 210 and control the coolant reservoir 223 to cool down or the heater 225 to heat up, so as to regulate the temperature of the area of ​​the battery pack 210.

[0052] The high-voltage distribution box 221, the multi-functional high-voltage controller 222, and the BMS box 224 of the high-voltage distribution group 220 are all located above the battery pack 210. For example, the high-voltage distribution box 221, the multi-functional high-voltage controller 222, and the BMS box 224 can be placed directly on the battery pack 210. For example, the high-voltage distribution box 221, the multi-functional high-voltage controller 222, and the BMS box 224 are all fixed to the mounting bracket of the battery pack 210 housing by bolts or similar detachable fixing devices. This arrangement allows for the maintenance of high-voltage components, such as the high-voltage distribution group 220, without the need to additionally disassemble the battery pack 210, thus improving maintenance efficiency.

[0053] The battery temperature management component provides a suitable temperature for the power unit 200, facilitating temperature management. A coolant reservoir 223 can be installed in the gap between the multi-functional high-voltage controller 222 and the BMS box 224, and can be fixed by a bracket or directly mounted on the battery pack 210. The cooling pipes of the coolant reservoir 223 can also connect downwards along the side wall of the battery pack 210 to the first heat sink 510 on the right side, which can be a water radiator. A heater 225 is located on the right side of the BMS box 224, with its hot air outlet aligned with the heat dissipation duct of the battery pack 210. The centrally located coolant reservoir 223 meets the heat dissipation requirements of the multi-functional high-voltage controller 222 and the BMS box 224, preventing localized overheating.

[0054] It should be noted that the power transmission assembly 300 includes a rotary motor 310 and a hydraulic main valve 320. The rotary motor 310 is located on the side of the hydraulic main valve 320 facing the cab, which helps to reduce the bends and length of the hydraulic lines between the rotary motor 310 and the hydraulic main valve 320, thereby reducing pressure loss.

[0055] The slewing motor 310 is located on the front side of the central area of ​​the engine room, adjacent to the cockpit. The slewing motor 310 is located on one side of the hydraulic main valve 320. The slewing motor 310 and the hydraulic main valve 320 are arranged adjacent to each other. The slewing motor 310 and the hydraulic main valve 320 can be connected by hydraulic pipelines, which can shorten the length of the hydraulic oil circuit and improve the response speed of the slewing motor 310.

[0056] In some embodiments, the power drive assembly 400 includes a battery 410, a drive motor 420, a hydraulic controller 430, a power controller 440, a hydraulic main pump 450, and a hydraulic oil tank 460 arranged sequentially along the length of the rotary platform 100. This application shortens the power transmission path by arranging the battery 410 to the hydraulic oil tank 460 sequentially along the length of the rotary platform 100 (e.g., the drive motor 420 and the hydraulic main pump 450 are connected in a straight line along the length). Furthermore, these components can be disassembled individually for maintenance (e.g., replacing the battery 410 does not require moving other components), facilitating repairs.

[0057] The battery 410 is located at the front of the right side of the engine compartment, close to the right side of the driver's cab. The drive motor 420 is adjacent to the rear of the battery 410. The output shaft of the drive motor 420 is connected to the hydraulic main pump 450 via a coupling. The proximity of the battery 410 and the drive motor 420 shortens the power transmission distance and saves on cabling, resulting in a simpler and more aesthetically pleasing layout. The hydraulic controller 430 and the power controller 440 are respectively mounted on top of the drive motor 420 and the hydraulic main pump 450. They can be connected to the housings of the drive motor 420 and the hydraulic main pump 450, or they can be mounted on top of them using mounting brackets. This application firstly utilizes the idle space above the drive motor 420 and the hydraulic main pump 450 by installing the hydraulic controller 430 and the power controller 440 respectively on top of the drive motor 420 and the hydraulic main pump 450, thus saving the horizontal or vertical space of the rotary platform 100 and making the layout more compact. Secondly, the hydraulic controller 430 and the power controller 440 are close to the drive motor 420 and the hydraulic main pump 450, reducing signal transmission delay, thereby reducing control delay and improving response speed. Finally, they can be installed by connecting the housing or by mounting brackets to adapt to different installation requirements. For example, by using mounting brackets for disassembly and assembly, the hydraulic controller 430 and the power controller 440 do not need to be disassembled when inspecting the drive motor 420 or the hydraulic main pump 450.

[0058] The hydraulic main pump 450 is located directly behind the drive motor 420, saving longitudinal space in the engine compartment. The hydraulic main pump 450 is connected to the hydraulic oil tank 460. If the pump body inlet of the hydraulic main pump 450 is connected to the hydraulic oil tank 460 through a pipeline, the hydraulic pipeline is shortened and the response speed of the hydraulic circuit is improved.

[0059] The hydraulic oil tank 460 is located at the rear of the right-side area, close to the first heat sink 510, as if the hydraulic oil tank 460 were located on the side of the water radiator. The components of the power drive assembly 400 are arranged sequentially along the length of the rotary platform 100, i.e., in the front-to-back direction, forming a linear layout from the right front battery 410 to the right rear hydraulic oil tank 460. The hydraulic controller 430 and the power controller 440 are positioned high up, allowing parameter adjustments without disassembling the drive motor 420 below.

[0060] In some embodiments, the system further includes a first heat sink 510 and a second heat sink 520, which are arranged opposite to each other and correspond to two mounting areas 110 respectively. The power transmission assembly 300 and the power drive assembly 400 are both at least partially located between the first heat sink 510 and the second heat sink 520. The opposing arrangement of the first heat sink 510 and the second heat sink 520 provides space for the installation of either the power transmission assembly 300 or the power drive assembly 400, improving space utilization and allowing for concentrated component placement in the engine compartment. The opposing arrangement of the first heat sink 510 and the second heat sink 520 achieves separation and reduces thermal interference (e.g., the heat radiation directions of both the first heat sink 510 and the second heat sink 520 are outwards, i.e., away from the power drive assembly 400), providing a dual-sided heat dissipation channel for either the power transmission assembly 300 or the power drive assembly 400, thus improving heat dissipation efficiency. This application does not limit the heat dissipation method of the first heat sink 510 and the second heat sink 520. For example, the first heat sink 510 and the second heat sink 520 can be air-cooled (such as a fan) or liquid-cooled (such as an oil radiator or a water radiator).

[0061] The first heat sink 510 and the second heat sink 520 are arranged opposite each other, located at the opposite outer edges of two adjacent mounting areas 110, with sufficient space between them for accommodating the power transmission assembly 300 and the power drive assembly 400. For example, the water radiator of the first heat sink 510 is located on the right side of the rotary platform 100, and the oil radiator 525 of the second heat sink 520 is located on the left side of the rotary platform 100. The two are positioned on opposite sides of the rotary platform 100 and laterally aligned. The rotary motor 310 and hydraulic main valve 320 of the power transmission assembly 300 and the hydraulic oil tank 460 of the power drive assembly 400 are located between the two heat sinks. This split-type heat dissipation method, with the first heat sink 510 and the second heat sink 520 laterally distributed on both sides of the rotary platform 100, avoids the length requirements of the rotary platform 100 in the traditional tandem layout, making the engine room layout compact and reducing the space occupied.

[0062] The second heat dissipation component 520 includes an oil radiator 525 and a liquid storage tank 521, a heat exchanger 522, a water pump 523, and a compressor 524 arranged sequentially along the length of the outer edge of the mounting area 110. The first heat dissipation component 510 includes a water radiator. The oil radiator 525 and the water radiator are arranged opposite each other and located on both sides of the rotating platform 100. In this application, the oil radiator 525 and the water radiator are located on both sides of the rotating platform 100, which can make full use of the space outside the rotating platform 100, reduce the occupation of the internal space of the rotating platform 100, and make the component layout of the engine room more concentrated. In addition, the liquid storage tank 521 and the heat exchanger 522 can be arranged along the width direction of the rotating platform 100, making the layout more compact.

[0063] In some embodiments, a counterweight 600 is also included. The counterweight 600 spans at least two mounting areas 110 and is located on the side of the power assembly 200 away from the cab. The present application adds counterweight to the slewing platform 100 by using the counterweight 600, thereby optimizing the center of gravity distribution of the entire cabin. The lateral arrangement of the counterweight 600 can reduce the roll moment when turning, making the cabin stable when turning. Moreover, the counterweight 600 can also serve as a protective component to protect the power assembly 200.

[0064] The counterweight 600 extends laterally through the rear area of ​​the cabin, covering at least two mounting areas 110. Located on one side of the battery pack 210 of the power assembly 200, it serves as a counterweight and protects the battery pack 210. In the event of an external impact, such as a rear-end collision, the counterweight 600 can protect the battery pack 210. The counterweight 600 is a thin, filled counterweight block, and this application does not impose any limitations on it.

[0065] In some embodiments, a charging port 700 is also included, which is disposed on the rotary platform 100 and located below the cab along the direction of gravity.

[0066] The charging port 700 is fixed below the cab 25 of the slewing platform 100. The interface of the charging port 700 faces outward and is consistent with the opening direction of the cab door. The charging port 700 is embedded in the lower part of the cab, and the cab can play a role in preventing collisions with the charging port 700.

[0067] This application also provides an electric excavator, including a body and a cabin arrangement structure of any of the above embodiments disposed on the body.

[0068] This application does not limit the type of excavator. For example, the excavator can be an electric excavator or a hybrid excavator.

[0069] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0070] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A cabin layout structure, characterized in that, include: A slewing platform having at least two adjacent mounting areas along its width, at least one of the mounting areas being used to mount a driver's cab; A power unit that spans at least two of the mounting areas and is disposed away from the cab; A power transmission assembly, wherein the power transmission assembly is disposed in the middle of at least one of the mounting areas; A power drive assembly is located in an installation area adjacent to the cab, and both the power transmission assembly and the power drive assembly are located on the side of the power assembly facing the cab.

2. The cabin layout structure according to claim 1, characterized in that, The power assembly includes a battery pack, a high-voltage distribution group, and a low-voltage distribution component. The battery pack spans at least two of the mounting areas. The high-voltage distribution group is disposed above the battery pack, and the low-voltage distribution component is disposed above the power drive assembly or the battery pack.

3. The cabin layout structure according to claim 2, characterized in that, The high-voltage distribution group includes a high-voltage distribution box, a multi-in-one high-voltage controller, and a BMS box. The power unit also includes a battery temperature management component, which includes a coolant reservoir and a heater. Both the coolant reservoir and the heater are located above the battery pack. The coolant reservoir is located between the multi-in-one high-voltage controller and the BMS box, and the heater is located on one side of the BMS box.

4. The cabin layout structure according to any one of claims 1-3, characterized in that, The power transmission assembly includes a rotary motor and a hydraulic main valve, with the rotary motor located on the side of the hydraulic main valve facing the cab.

5. The cabin layout structure according to any one of claims 1-3, characterized in that, The power drive assembly includes a battery, a drive motor, a hydraulic controller, a power controller, a hydraulic main pump, and a hydraulic oil tank, arranged sequentially along the length of the rotary platform.

6. The cabin layout structure according to any one of claims 1-3, characterized in that, It also includes a first heat sink and a second heat sink, which are disposed opposite to each other and respectively correspond to the two mounting areas. The power transmission component and the power drive component are both located at least partially between the first heat sink and the second heat sink.

7. The cabin layout structure according to claim 6, characterized in that, The second heat dissipation component includes an oil radiator and a liquid storage tank, a heat exchanger, a water pump, and a compressor arranged sequentially along the length of the outer edge of the installation area; The first heat dissipation component includes a water radiator, and the oil radiator and the water radiator are arranged opposite each other and located on both sides of the rotating platform.

8. The cabin layout structure according to any one of claims 1-3, characterized in that, It also includes a counterweight that spans at least two of the mounting areas and is located on the side of the power unit away from the cab.

9. The cabin layout structure according to any one of claims 1-3, characterized in that, It also includes a charging port, which is disposed on the rotating platform and located below the cab along the direction of gravity.

10. An electric excavator, characterized in that, Includes the main body and the cabin arrangement structure according to any one of claims 1-9 disposed on the main body.

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