Outdoor work vehicle

Abstract

The utility model relates to an outdoor operation vehicle which comprises a walking assembly configured to support the outdoor operation vehicle to walk; the power output assembly is configured to execute outdoor operation; the power supply system is at least configured to supply power to the outdoor operation vehicle, the power supply system comprises a battery bin, a battery pack assembled in the battery bin and a power supply management device arranged outside the battery bin, and the power supply management device is at least used for controlling charging or discharging of the battery pack; the power management device comprises a shell main body, and a plurality of accommodating cavities which are isolated from one another are formed in the shell main body. According to the outdoor operation vehicle, the first containing cavity used for containing the circuit board and the second containing cavity used for being connected with the circuit board are arranged in a separated mode, and therefore the circuit board and electrical elements on the circuit board can be well protected.

Description

[TECHNICAL FIELD]

[0001] The present application relates to the technical field of work equipment, in particular to an outdoor work vehicle. [BACKGROUND]

[0002] With the development of battery technology, outdoor work vehicles are gradually replaced by engine drive by electric drive. The battery pack usually contains one or more battery cores, which can be used as a power source for outdoor work vehicles, or as a power supply for portable power tools. As a power management device for managing the charging and discharging of the battery pack, it is an essential device for electrically driven outdoor work vehicles.

[0003] The power management device includes a housing and a circuit board mounted in the housing, and a plurality of terminals are provided on the circuit board for wire harness connection with the outside. When the power management device needs to be removed from the vehicle, the housing also needs to be opened, and the wire harness connection needs to be removed. In this way, when the housing is opened, the circuit board will be exposed to the external environment, which is easy to cause pollution. Moreover, during the process of opening and closing the housing and disassembling the wire harness, the circuit board is easily damaged by knocking, resulting in failure of the power management device.

[0004] Moreover, the connection part of the circuit board and the wire harness introduced from the outside is located in one space. When the wire harness is introduced from a high position to a lower position power management device, the wire harness is easy to introduce liquid on it into the housing, causing pollution or short circuit of the circuit board, affecting the service life, and even causing damage.

[0005] In view of this, it is necessary to provide an improved outdoor work vehicle to overcome the defects of the prior art. [INVENTION CONTENTS]

[0006] In view of the deficiencies of the prior art, one of the purposes of the present application is to provide an outdoor work vehicle which can effectively protect the circuit board.

[0007] The technical solution adopted by the present application to solve the problems of the prior art is: an outdoor work vehicle, comprising: a walking assembly configured to support the outdoor work vehicle to walk; a power output assembly configured to perform outdoor work; a power supply system configured to at least power the outdoor work vehicle, the power supply system comprising a battery compartment, a battery pack assembled in the battery compartment, and a power management device provided outside the battery compartment, the power management device being used at least for controlling charging or discharging of the battery pack; the power management device comprises a housing main body, and the housing main body forms a plurality of accommodation cavities which are isolated from each other.

[0008] In some embodiments, the plurality of accommodating cavities comprises a first accommodating cavity and a second accommodating cavity which are isolated from each other, the first accommodating cavity is configured to accommodate at least one circuit board, the circuit board is provided with a connecting portion for external connection, the shell body is provided with a communication portion which communicates the first accommodating cavity and the second accommodating cavity, the connecting portion extends to the second accommodating cavity through the communication portion, and the second accommodating cavity is configured as a wiring area for electrical connection and / or signal connection between the circuit board assembly extending into the second accommodating cavity and external devices.

[0009] In some embodiments, the first accommodating cavity is configured to accommodate a first circuit board and a second circuit board, the first circuit board is configured to provide electrical energy for the walking assembly and / or the power output assembly, and the second circuit board is configured to be capable of transmitting communication signals, the first circuit board comprises a first connecting portion, the second circuit board comprises a second connecting portion, the communication portion comprises a first through hole and a second through hole, and the wiring area comprises a first wiring area and a second wiring area; the first connecting portion is capable of extending to the first wiring area from the first accommodating cavity through the first through hole, and the second connecting portion is capable of extending to the second wiring area from the first accommodating cavity through the second through hole.

[0010] In some embodiments, the height of the first wiring area and the second wiring area is different on the outdoor work vehicle.

[0011] In some embodiments, the first accommodating cavity is formed with a first stepped surface and a second stepped surface which have different heights, the first connecting portion is arranged corresponding to the first stepped surface, and the second connecting portion is arranged corresponding to the second stepped surface.

[0012] In some embodiments, one end of the first through hole is located at the first wiring area, and the other end is located at the first stepped surface; one end of the second through hole is located at the second wiring area, and the other end is located at the second stepped surface.

[0013] In some embodiments, the shell body is formed with a first accommodating cavity and a second accommodating cavity which are isolated from each other, the second accommodating cavity is provided with two, and the first accommodating cavity is provided with one, one of the two second accommodating cavities is arranged on one side of the first accommodating cavity, and the other is arranged on the other side of the first accommodating cavity.

[0014] In some embodiments, a first cover plate is arranged at the opening of the first accommodating cavity, and a second cover plate is arranged at the opening of the second accommodating cavity.

[0015] In some embodiments, a first sealing member is arranged between the first cover plate and the shell body.

[0016] In some embodiments, a second seal is arranged between the second cover plate and the housing body.

[0017] Compared with the prior art, the application has the following beneficial effects:

[0018] In the application, the first accommodating cavity for accommodating the circuit board and the second accommodating cavity for wiring with the circuit board are arranged separately, so that the worker only performs relevant wiring or disconnection operation in the second accommodating cavity when wiring, without touching the circuit board, thereby the circuit board and the electrical elements on the circuit board can be well protected. Moreover, when connecting or disconnecting the wiring harness, the operator directly performs quick plug-in or plug-out operation on the connecting part extending into the second accommodating cavity, thereby improving the efficiency of assembly on the production line.

[0019] In the application, the power management device is arranged at the bottom of the battery compartment, and the mounting surface of the circuit board is arranged in a direction different from the opening direction of the battery compartment, so that when wiring or disconnection or maintenance of the circuit board in the power management device is performed on the whole vehicle of the outdoor working vehicle, the battery compartment is released from the frame, and the battery compartment is turned over to drive the power management device to be turned over synchronously, so that the power management device can be turned over from the bottom of the battery compartment to an angle and a position convenient for the worker to touch, thereby facilitating wiring or disconnection or disassembly of the housing for maintenance of the circuit board.

[0020] In the application, the housing body is formed with two first step surfaces and a second step surface of different heights in the first accommodating cavity, the first connecting part on the first circuit board passes through the first step surface and enters the second accommodating cavity, and the second connecting part on the second circuit board passes through the second step surface and enters the second accommodating cavity, so that the terminals on the two circuit boards in one cavity are led out to another cavity through step surfaces of different heights, so that when wiring is performed on the two circuit boards respectively, the wiring harness on the first circuit board does not interfere with the wiring harness on the second circuit board, the wiring harness connection is regular and not messy, and the wiring harness on a single circuit board is not too crowded. Especially, the situation of wiring between the wiring harnesses on the circuit board with overcurrent is reduced, the occurrence of short circuit is reduced, and the occurrence of safety hazards is reduced.

[0021] Moreover, the first circuit board is configured to provide electrical energy for the walking assembly or the power output assembly, and the second circuit board is configured to be a second circuit board capable of transmitting communication signals, so that the influence of the magnetic field generated when the first circuit board has overcurrent on the transmission of communication signals on the second circuit board is reduced.

[0022] In the present application, the layered arrangement of the first circuit board and the second circuit board also enables more interfaces for external wiring to be installed on the first circuit board and the second circuit board in a limited space, so that some functional modules can be added on the first circuit board and the second circuit board according to requirements, and information interaction or power transmission is realized through the added interfaces, thereby enriching the functionality of the power management device.

[0023] In the present application, the first accommodating cavity accommodating the circuit board and the second accommodating cavity accommodating the wiring can avoid water droplets or other liquids from entering the first accommodating cavity from the second accommodating cavity along the connected wiring harness, especially in outdoor operation. [SUMMARY]

[0024] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings:

[0025] Figure 1 is a whole vehicle perspective view of an outdoor operation vehicle in some embodiments of the present application;

[0026] Figure 2 is a position relationship diagram of a battery compartment and a power management device of an outdoor operation vehicle in some embodiments of the present application from one angle;

[0027] Figure 3 is a position relationship diagram of a battery compartment and a power management device of an outdoor operation vehicle in some embodiments of the present application from another angle;

[0028] Figure 4 is a perspective structural schematic diagram of a power management device of an outdoor operation vehicle in some embodiments of the present application from one angle;

[0029] Figure 5 is a perspective structural schematic diagram of a power management device of an outdoor operation vehicle in some embodiments of the present application from another angle;

[0030] Figure 6 is an exploded view of part of a power management device of an outdoor operation vehicle in some embodiments of the present application;

[0031] Figure 7 is a structural schematic diagram of a battery compartment and a first circuit board and a second circuit board connected respectively in an outdoor operation vehicle in some embodiments of the present application;

[0032] Figure 8 is a structural schematic diagram of a shell main body of an outdoor operation vehicle in some embodiments of the present application from one angle;

[0033] Figure 9 is a structural schematic diagram of a shell main body of an outdoor operation vehicle in some embodiments of the present application from another angle;

[0034] Figure 10is a structural schematic diagram of a first circuit board in some embodiments of the present application;

[0035] Figure 11 is a structural schematic diagram of a second circuit board in some embodiments of the present application;

[0036] Figure 12 is a top view structural schematic diagram of the first circuit board and the second circuit board in the stacking direction in some embodiments of the present application;

[0037] Figure 13 is a position schematic diagram of the first circuit board, the second circuit board and the first cover plate of the outdoor working vehicle in some embodiments of the present application;

[0038] Figure 14 is a logic block diagram of the power management device and the battery compartment, the battery pack, the controller, the power output assembly and the walking assembly of the outdoor working vehicle in some embodiments of the present application.

[0039] Meaning of reference signs in the drawings:

[0040] 1, frame; 2, power supply system; 21, battery compartment; 211, first side plate; 2111, first cooling fan; 2112, charging connector; 212, second side plate; 2112, second cooling fan; 213, external terminal; 214, reversing radar; 215, radar controller; 216, tail light;

[0041] 22, battery pack;

[0042] 23, power management device; 230, housing; 2301, first interface group; 23011, first battery pack connection interface; 23012, charging interface; 23013, first fan interface; 23014, expansion interface;

[0043] 2302, second interface group; 23021, second battery pack connection interface; 23022, power transmission interface; 23023, signal transmission interface; 23024, second fan interface;

[0044] 231, housing body; 232, first receiving cavity; 2321, first step surface; 23211, first through hole; 2322, second step surface; 23221, second through hole;

[0045] 233, second receiving cavity; 2331, first wiring area; 2332, second wiring area;

[0046] 234, first cover plate; 2341, sealing receiving groove; 2342, sealing strip; 235, second cover plate;

[0047] 24, first circuit board; 241, first mounting surface; 242, first connecting portion;

[0048] 2421, first terminal group; 24211, first battery pack power connection terminal; 24212, charging terminal; 242121, charging positive terminal; 242122, charging negative terminal;

[0049] 2422, second terminal group; 24221, second battery pack power connection terminal; 24222, power output terminal; 242221, output positive terminal; 242222, output negative terminal; 243, switch array; 2431, mos switch; 244, capacitor array; 2441, capacitor; 245, electrically conductive body; 2451, electrically conductive column;

[0050] 25, second circuit board; 251, second mounting surface; 252, second connection portion;

[0051] 2521, third terminal group; 25211, first battery pack signal terminal; 25212, first fan terminal; 25213, charge and discharge signal terminal;

[0052] 2522, fourth terminal group; 25221, second battery pack signal terminal; 25222, second fan terminal; 25223, signal transmission terminal;

[0053] 253, radar terminal; 254, radar step-down module; 255, tail light terminal; 2551, tail light step-down module; 256, switch terminal; 2561, fan step-down module; 257, processor; 258, hall ring; 259, overlapping area;

[0054] 26, bracket; 27, air flow passage; 28, monitoring switch; 3, operation assembly; 31, left operation lever; 32, right operation lever; 4, seat; 5, power output assembly; 6, walking assembly; 61, front walking wheel; 62, rear walking wheel. [DETAILED DESCRIPTION]

[0055] To make the objectives, technical solutions, and superiorities of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below in connection with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts should fall into the scope of the present application.

[0056] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood in a broad sense, for example, it can be fixed connection or detachable connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through intermediate medium; it can be internal connection of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0057] Please refer to Figure 1 The outdoor working vehicle shown is an embodiment of the present application, comprising a frame 1, an operating assembly 3, a seat 4, a power output assembly 5, a walking assembly 6 and a power supply system 2.

[0058] The frame 1 is arranged in a linear direction, and the operating assembly 3, the seat 4, the power output assembly 5, the walking assembly 6 and the power supply system 2 are arranged at different positions on the frame 1.

[0059] The operating assembly 3 comprises a left operating lever 31 arranged on the left side of the outdoor working vehicle and a right operating lever 32 arranged on the right side, and the operator controls the outdoor working vehicle to move forward, backward or turn by operating the left operating lever 31 and the right operating lever 32. The operating assembly 3 can also be a steering wheel capable of controlling the outdoor working vehicle.

[0060] In some embodiments, control buttons for adjusting the running speed of the power output assembly 5 and the walking assembly 6 are arranged on the operating assembly 3, so as to facilitate the operator to quickly and accurately control the running of the outdoor working vehicle. Further, buttons for adjusting the brightness of the vehicle lights of the outdoor working vehicle, buttons for adjusting the rotating speed of the cutter, etc. can also be arranged on the operating assembly 3.

[0061] In some embodiments, a vehicle-mounted air blower can also be arranged at the front end of the frame 1, which is used to blow fallen leaves on the lawn, so as to reduce the disturbance to the operation of the outdoor working vehicle. Further, buttons for controlling the steering and blowing amount of the vehicle-mounted air blower are arranged on the operating assembly 3, so that the operator can control the vehicle-mounted air blower on the vehicle during driving operation, without getting off the vehicle.

[0062] The seat 4 is arranged on the frame 1, and the left operating lever 31 and the right operating lever 32 are arranged close to the seat 4 and respectively located on the left and right sides of the seat 4, so that the operator sitting on the seat 4 can control the left operating lever 31 and the right operating lever 32 to control the running of the outdoor working vehicle.

[0063] The power output assembly 5 is a workpiece for realizing the function of the tool. In an embodiment, the outdoor working vehicle is a riding mower, and the power output assembly 5 is a cutting assembly arranged below the frame 1, which is used to output power to realize the mowing function of the riding mower.

[0064] In some embodiments, the cutting assembly comprises a cutter head, a grass cutting element and a cutting motor. The cutting motor is controlled by the control buttons on the operation assembly 3, and the grass cutting element is used to cut grass and other vegetation when rotating at high speed. For example, the grass cutting element is a blade for cutting vegetation on the lawn. The cutter head is formed with a grass cutting space for accommodating the grass cutting element, and the grass cutting element is at least partially located in the grass cutting space.

[0065] The power output assembly 5 can also be detached from the outdoor working vehicle. It can be understood that the power output assembly 5 can be replaced by other assemblies to meet the use requirements of different garden operations. Therefore, the outdoor garden mower can not only cut vegetation, but also replace the cutting assembly with snow shoveling, snow sweeping, snow blowing, flushing and other functional components. Those skilled in the art can adaptively replace various functional components without creative labor, which should all be included in the protection scope of the present embodiment.

[0066] When the cutting assembly is replaced by snow shoveling, snow sweeping or snow blowing functional components, the power supply system 2 of the outdoor working vehicle of the present application can also power the above-mentioned snow shoveling, snow sweeping, snow blowing and other functional components.

[0067] The walking assembly 6 comprises walking wheels arranged on the vehicle frame 1 and walking motors for driving the walking wheels. The walking wheels are arranged on both sides of the vehicle frame 1, so that the center of gravity of the outdoor working vehicle is kept within the vehicle frame 1, so as to reduce the probability of rollover of the outdoor working vehicle when walking.

[0068] In an embodiment, the number of walking wheels is set to 4, including 2 front walking wheels 61 and 2 rear walking wheels 62. The front walking wheels 61 can be universal wheels, and the walking motors are drivingly connected with the rear walking wheels 62 to drive the rear walking wheels 62 to rotate. The two rear walking wheels 62 are matched with the walking motors, and the rotation speeds of the two walking motors can be the same or different. When the operator drives the outdoor working vehicle straight, the rotation speeds of the two walking motors are substantially the same. When the operator drives the outdoor working vehicle to turn, the rotation speeds of the two walking motors are different, and the outdoor working vehicle turns to the side with lower rotation speed of the walking motor. The diameter of the front walking wheel 61 is smaller than that of the rear walking wheel 62.

[0069] The power supply system 2 is arranged at the rear of the vehicle frame 1, and includes a plurality of battery packs 22, a power management device 23 (power management module) configured to uniformly control the charging and discharging processes of the plurality of battery packs 22, and a battery compartment 21 for mounting the plurality of battery packs 22. The plurality of battery packs 22 are electrically connected to external terminals 213 of the battery compartment 21 through terminals thereon to supply power to the outdoor working vehicle. The plurality of battery packs 22 include first-type battery packs 22 and second-type battery packs 22. Further, the battery compartment 21 can be configured to accommodate the first-type battery packs 22 and the second-type battery packs 22 with different capacities or sizes to increase the adaptability of the outdoor working vehicle to different types of battery packs 22. At least one of the battery packs 22 can be detached from the outdoor working vehicle to supply power to other handheld power tools or energy storage devices, thereby increasing the versatility of the battery packs 22. In some embodiments, the first-type battery packs include ternary lithium battery packs, and the second-type battery packs include iron phosphate lithium battery packs.

[0070] Compared with conventional energy sources using fossil fuels, the outdoor working vehicle of the present application is more environmentally friendly and more in line with long-term development planning.

[0071] Please refer to Figure 2 , Figure 3 , Figure 6 , Figure 8 and Figure 9 In some embodiments, the power supply system 2 includes the battery compartment 21, the battery packs 22, and the power management module. The battery packs 22 are assembled in the battery compartment 21. The power management module is arranged outside the battery compartment 21. The power management module includes a housing body 231 including a first accommodating cavity 232 and a second accommodating cavity 233 separated from each other. The first accommodating cavity 232 is configured to accommodate at least one circuit board. The circuit board is provided with a connection portion for connecting with external devices. The connection portion extends to the second accommodating cavity 233. The second accommodating cavity 233 is configured as a wiring area for electrically and / or signal connecting the connection portion in the second accommodating cavity 233 with external devices.

[0072] By separating the first accommodating cavity 232 for accommodating the circuit board and the second accommodating cavity 233 for wiring with the circuit board, the worker only needs to perform relevant wiring or unwiring operations in the second accommodating cavity 233 when wiring, without touching the circuit board, thereby protecting the circuit board and electrical elements thereon.

[0073] As Figures 6-11As shown in the drawings, in some embodiments, two circuit boards are arranged in the first accommodating cavity 232, one of which is a first circuit board 24 configured to supply power to the walking assembly 6 and / or the power output assembly 5, and the other is a second circuit board 25 configured to output communication information, the connecting portion on the first circuit board 24 is configured as a first connecting portion 242, and the connecting portion on the second circuit board 25 is configured as a second connecting portion 252; the first connecting portion 242 can extend from the first accommodating cavity 232 to the second accommodating cavity 233; the second connecting portion 252 can extend from the first accommodating cavity 232 to the second accommodating cavity 233. In this way, the first circuit board 24 and the second circuit board 25 are arranged in the first accommodating cavity 232, the first connecting portion 242 of the first circuit board 24 and the second connecting portion 252 of the second circuit board 25 extend to the second accommodating cavity 233, so that the first circuit board 24 and the second circuit board 25 can be electrically connected and / or signal connected with external devices through the respective connecting portions, while reducing the physical contact between the first circuit board 24 and the second circuit board 25 and the external devices, avoiding being bumped.

[0074] As shown in the drawings, Figure 8 and Figure 9 As shown in the drawings, in some embodiments, the shell body 231 is formed with a first step surface 2321 and a second step surface 2322 in the first accommodating cavity 232, the first step surface 2321 is provided with a first through hole 23211, and the second step surface 2322 is provided with a second through hole 23221. The first connecting portion 242 can extend from the first accommodating cavity 232 to the second accommodating cavity 233 through the first through hole 23211, and the second connecting portion 252 can extend from the first accommodating cavity 232 to the second accommodating cavity 233 through the second through hole 23221. The first through hole 23211 and the second through hole 23221 both communicate the first accommodating cavity 232 and the second accommodating cavity 233, the first connecting portion 242 passes through the first through hole 23211 and is partially located in the second accommodating cavity 233, and the second connecting portion 252 passes through the second through hole 23221 and is partially located in the second accommodating cavity 233, so that the first connecting portion 242 and the second connecting portion 252 extend to the second accommodating cavity 233 through different first step surfaces 2321 and second step surfaces 2322 respectively, which helps to make the wiring of the first connecting portion 242 and the second connecting portion 252 independent of each other, so that the wire harness connection is regular.

[0075] In some embodiments, the first through hole 23211 and the second through hole 23221 are located above the second accommodating cavity 233. So that the liquid or water droplets in the second accommodating cavity 233 cannot flow into the first accommodating cavity 232, which can avoid contaminating the first circuit board, the second circuit board or other components in the first accommodating cavity 232.

[0076] As shown in the drawings, Figure 9As shown, in some embodiments, one end of the first through hole 23211 is located in the first connection area 2331 and the other end is located in the first step surface 2321. One end of the second through hole 23221 is located in the second connection area 2332 and the other end is located in the second step surface 2322.

[0077] like Figures 8-11 As shown, in some embodiments, the first stepped surface 2321 and the second stepped surface 2322 have different heights, and the first circuit board 24 and the second circuit board 25 are arranged in layers, one above the other. Specifically, the first stepped surface 2321 is higher than the second stepped surface 2322, and the height of the first circuit board 24 is similar to and slightly higher than the first stepped surface 2321, while the height of the second circuit board 25 is similar to and slightly higher than the second stepped surface 2322. The portion of the first circuit board 24 with the first connecting portion 242 is arranged corresponding to the first stepped surface 2321, and the portion of the second circuit board 25 with the second connecting portion 252 is arranged corresponding to the second stepped surface 2322. By independently arranging the first and second circuit boards 24 and 25 in layers, and arranging the first and second stepped surfaces 2321, 2322 to match their respective heights, the overall structure of the power management device 23 is compact, and the first and second connecting portions 242, 252 are designed in layers without interfering with each other.

[0078] like Figure 9 As shown, in some embodiments, the second accommodating cavity 233 includes at least a wiring area, which includes a first wiring area 2331 and a second wiring area 2332 of different heights. The first connector 242 can enter the first wiring area 2331 via the first step surface 2321 through the first through-hole 23211, and the second connector 252 can enter the second wiring area 2332 via the second step surface 2322 through the second through-hole 23221. The wiring area is divided into first and second wiring areas 2331 and 2332 of different heights. The first connector 242 is connected to an external device in the first wiring area 2331, and the second connector 252 is connected to an external device in the second wiring area 2332. In this way, the wiring harnesses connected to the first and second connectors 242 and 252 are arranged in layers within the second accommodating cavity 233, reducing interference between the first and second circuit boards 24 and 25 when connecting to external wiring harnesses.

[0079] like Figure 8 and Figure 9 As shown, in some embodiments, on an outdoor work vehicle, the height of the first circuit board 24 is higher than the height of the second circuit board 25 , and the height of the first wiring area 2331 is higher than the height of the second wiring area 2332 .

[0080] like Figures 8-11 As shown, in some embodiments, two second accommodating cavities 233 are provided, and the two second accommodating cavities 233 are respectively provided on both sides of the first accommodating cavity 232. Specifically, a first wiring area 2331 of each second accommodating cavity 233 is provided on each side of the first accommodating cavity 232, for a total of two first wiring areas 2331. Correspondingly, two first step surfaces 2321 are provided in the first accommodating cavity 232, each first step surface 2321 corresponding to a first wiring area 2331, and each first step surface 2321 is provided with a first through hole 23211 to connect to the first wiring area 2331. A second wiring area 2332 of each second accommodating cavity 233 is provided on each side of the first accommodating cavity 232, for a total of two second wiring areas 2332. Correspondingly, two second stepped surfaces 2322 are provided within the first accommodating cavity 232. Each second stepped surface 2322 corresponds to a second wiring area 2332, and each second stepped surface 2322 is provided with a second through-hole 23221 for connecting to the second wiring area 2332. The first circuit board 24 can be electrically connected and / or connected to external devices through the two first wiring areas 2331, and the second circuit board 25 can be electrically connected and / or connected to external devices through the two second wiring areas 2332.

[0081] like Figures 4-6 and Figure 10 and Figure 11 In some embodiments, a first cover plate 234 is provided at the opening of the first accommodating cavity 232, and a second cover plate 235 is provided at the opening of the second accommodating cavity 233. After the circuit board is installed in the first accommodating cavity 232, the first cover plate 234 can be used to seal the circuit board within the first accommodating cavity 232 to protect the first circuit board 24 and the second circuit board 25.

[0082] like Figure 4 and Figure 5 As shown, after an external device is connected to the first connection portion 242 and the second connection portion 252 via a wiring harness, the second cover 235 is used to store the first connection portion 242, the second connection portion 252, and a portion of the wiring harness located in the second accommodating cavity 233 within the second accommodating cavity 233. A first notch is provided on the housing body 231, and a second notch is provided on the second cover 235. When the second cover 235 is closed over the housing body 231, the first and second notches form a connection interface for the wiring harness to pass through.

[0083] like Figure 6As shown, in some embodiments, a first seal is arranged between the first cover plate 234 and the shell body 231, which can be a sealing strip 2342 or other sealing device. Specifically, the first cover plate 234 is provided with a sealing accommodation groove 2341 around the periphery, and the sealing strip 2342 is arranged in the sealing accommodation groove 2341 and partially exposed to the sealing accommodation groove 2341. When the first cover plate 234 is closed with the shell body 231, the shell body 231 presses the sealing strip 2342, and the sealing strip 2342 is locked and sealed with the shell body 231 by screws.

[0084] In some embodiments, a second seal is arranged between the second cover plate 235 and the shell body 231, which can be a sealing strip 2342 or other sealing device. Further, the second accommodation cavity 233 is provided with two, and correspondingly, the second cover plate 235 is provided with two, and the sealing strip 2342 arranged between the second cover plate 235 and the shell body 231 is also provided with two.

[0085] In some embodiments, the first accommodation cavity 232 can be provided with two, three or more, and the second accommodation cavity 233 can also be provided with one, three or more.

[0086] Please refer to 2、 Figure 3 、 Figures 7-9 In some embodiments, the power supply system 2 includes a battery compartment 21, a battery pack 22 and a power management device 23. The battery compartment 21 has an opening; the battery pack 22 is configured to be detachably assembled in the battery compartment 21 along the opening; and the power management device 23 includes a shell body 231, the shell body 231 includes a first accommodation cavity 232 and a second accommodation cavity 233 separated from each other, the first accommodation cavity 232 is configured to accommodate at least one circuit board, the circuit board is provided with a connecting portion for connecting with an external device, the connecting portion extends to the second accommodation cavity 233, and the second accommodation cavity 233 is at least configured as a wiring area for electrical connection and / or signal connection between the connecting portion in the second accommodation cavity 233 and the external device; the connecting portion is arranged on the mounting surface of the circuit board, and the mounting surface has a different orientation from the opening direction of the battery compartment 21.

[0087] In some embodiments, the opening direction of the battery compartment 21 is upward, and the mounting surface of the circuit board is downward, so that when wiring or unwiring or maintenance of the circuit board in the power management device 23 is performed on the whole vehicle of the outdoor working vehicle, the battery compartment 21 is released from the vehicle frame 1, and the battery compartment 21 is flipped to drive the power management device 23 to flip synchronously, so that the power management device 23 can be flipped from the bottom of the battery compartment 21 to an angle and a position which are convenient for the worker to access, and then the wiring or unwiring of the connecting portion or the disassembly of the shell body 230 for the maintenance of the circuit board is facilitated.

[0088] In some embodiments, the extension direction of the connecting portion is different from the opening direction of the battery compartment 21. Furthermore, the extension portion is arranged on the mounting surface of the circuit board and extends away from the mounting surface. The opening direction of the battery compartment 21 is upward, the mounting surface of the circuit board is downward, and the extension direction of the connecting portion is also downward.

[0089] Furthermore, the installation position of the power management device 23 can be set at the bottom of the battery compartment 21, or can be set at the side or top surface of the battery compartment 21. The specific installation position can be selected according to actual usage requirements.

[0090] The mounting surface of the circuit board can also be aligned with the opening direction of the battery compartment 21. In some embodiments, when the battery compartment 21 opens upward, the mounting surface of the circuit board is also upward. In some embodiments, when the battery compartment 21 opens horizontally, the mounting surface of the circuit board is also horizontally arranged.

[0091] Please also refer to 2. Figure 3 、 Figures 7-9 In some embodiments, on outdoor work vehicles, the battery compartment 21 opens upward, while the second accommodating cavity 233 opens in the opposite direction, that is, downward. In conjunction with the above embodiment, since the mounting surface of the circuit board faces downward, the connection portion of the mounting surface is also downwardly positioned, and since the connection portion of the circuit board is located within the second accommodating cavity 233, the opening of the second accommodating cavity 233 is set downward. During maintenance, when the battery compartment 21 is flipped, the battery management device is also flipped along with it, presenting the second accommodating cavity 233 to the operator in an easily accessible position and angle for disassembly of the wiring harness or the housing 230 of the power management device 23.

[0092] Please also refer to 2. Figure 3 、 Figures 7-9 In some embodiments, the power management device 23 is fixedly connected to the bottom of the battery compartment 21 and can move with the battery compartment 21. When the battery compartment 21 is moved, the power management device 23 can also be moved. Furthermore, in the case where the battery compartment 21 opens upward and the second accommodating cavity 233 of the power management device 23 is downward, when the battery compartment 21 is moved and the opening of the battery compartment 21 is set horizontally or downward, the opening of the second accommodating cavity 233 of the power management device 23 will be set horizontally or upward accordingly. This will facilitate operation within the second accommodating cavity 233 to connect the first and second terminals to external devices through wiring harnesses.

[0093] In some embodiments, the opening direction of the second accommodating cavity 233 of the power management device 23 can also be horizontally arranged, upwardly arranged, or inclinedly arranged upwardly or inclinedly arranged downwardly, or horizontally arranged, when the battery compartment 21 is arranged upwardly.

[0094] In some embodiments, the opening direction of the first accommodating cavity 232 is different from the opening direction of the battery compartment 21, i.e., the opening direction of the first accommodating cavity 232 is also downwardly arranged. In some embodiments, the opening direction of the first accommodating cavity 232 is the same as the opening direction of the battery compartment 21. Of course, the opening direction of the first accommodating cavity 232 can also be upwardly arranged, horizontally arranged, or downwardly arranged according to actual requirements.

[0095] In some embodiments, the opening direction of the battery compartment 21 is upwardly arranged, the opening direction of the first accommodating cavity 232 is upwardly arranged, and the opening direction of the second accommodating cavity 233 is downwardly arranged.

[0096] In some embodiments, the power management device 23 is arranged on the outdoor working vehicle, and the surface of the outdoor working vehicle connected with the power management device 23 is the connection surface, and the opening direction of the second accommodating cavity 233 is arranged to be opposite to the connection surface. Further, the power management device 23 can also be arranged on the vehicle frame 1 or the seat 4 or other feasible positions, and the surface of the outdoor working vehicle connected with the power management device 23 is the connection surface, and the opening direction of the second accommodating cavity 233 is arranged to be opposite to the connection surface, so as to avoid the interference of the connection surface to the disassembly of the shell 230 of the power management device 23 or the disassembly of the wire harness in the second accommodating cavity 233.

[0097] Please refer to FIG. 2, Figure 3 , Figures 6-10 and Figure 12In some embodiments, the power supply system 2 comprises a battery compartment 21, a battery pack 22 and a power management device 23. The battery pack 22 is assembled in the battery compartment 21. The power management device 23 is configured to at least control the charging and discharging of the battery pack 22. The power management device 23 comprises a housing body 231, which is configured as a first accommodating cavity 232 and a second accommodating cavity 233 separated from each other, the first accommodating cavity 232 is configured to accommodate a first circuit board 24 and a second circuit board 25, the first circuit board 24 is used to provide electrical energy for the walking assembly 6 and / or the power output assembly 5, and the second circuit board 25 is configured to be able to transmit communication signals. The first circuit board 24 is provided with a first connecting part 242, and the second circuit board 25 is provided with a second connecting part 252, both the first connecting part 242 and the second connecting part 252 can extend from the first accommodating cavity 232 to the second accommodating cavity 233, and the first connecting part 242 and the second connecting part 252 can be electrically connected and / or signal connected with external devices respectively.

[0098] Among them, the housing body 231 forms a first step surface 2321 and a second step surface 2322 with different heights in the first accommodating cavity 232, the first step surface 2321 is provided with a first through hole 23211 which communicates the first accommodating cavity 232 and the second accommodating cavity 233, and the second step surface 2322 is provided with a second through hole 23221 which communicates the first accommodating cavity 232 and the second accommodating cavity 233; the first connecting part 242 can enter the second accommodating cavity 233 through the first through hole 23211, and the second connecting part 252 can enter the second accommodating cavity 233 through the second through hole 23221. In this way, the terminals on the two circuit boards in one chamber are led out to another chamber through step surfaces with different heights, so that when wiring with the two circuit boards respectively, the wire harness on the first circuit board 24 will not interfere with the wire harness on the second circuit board 25, so that the wire harness connection is regular and not messy, and when arranging the wire harness on a single circuit board, it will not be too crowded. Especially the situation of wiring between the wire harnesses on the circuit board with overcurrent is reduced, the occurrence of short circuit is reduced, and the occurrence of safety hidden trouble is reduced.

[0099] Moreover, the first circuit board is configured to provide electrical energy for the walking assembly or the power output assembly, and the second circuit board is configured to be able to transmit communication signals, which reduces the influence of the magnetic field generated by the first circuit board with overcurrent on the transmission of communication signals on the second circuit board.

[0100] Further, the height of the first step surface 2321 is higher than the height of the second step surface 2322, and the height of the first circuit board 24 is close to the height of the first step surface 2321 and slightly higher than the first step surface 2321, and the height of the second circuit board 25 is close to the height of the second step surface 2322 and slightly higher than the second step surface 2322. The part of the first circuit board 24 with the plurality of first terminals is arranged corresponding to the first step surface 2321, and the part of the second circuit board 25 with the plurality of second terminals is arranged corresponding to the second step surface 2322. The first circuit board 24 and the second circuit board 25 are arranged in layers independently, and the first step surface 2321 and the second step surface 2322 corresponding to the height of the first circuit board 24 and the second circuit board 25 are arranged according to the height of the first circuit board 24 and the second circuit board 25, so that the structure layout of the entire power management device 23 can be more compact, and the length of the first terminals and the second terminals can be reduced.

[0101] As shown in Figure 9 some embodiments, the wiring area of the second accommodating cavity 233 includes a first wiring area 2331 and a second wiring area 2332, and the height of the first wiring area 2331 is higher than the height of the second wiring area 2332. The two wiring areas are divided into different heights, which facilitates the connection of the wiring harness and reduces the occurrence of short circuit caused by the wiring harness.

[0102] Please also refer to Figure 2 , Figure 3 , Figure 6 and Figure 12 , in some embodiments, the power supply system 2 of the outdoor working vehicle further includes a battery compartment 21, a battery pack 22 and a power management device 23. The battery pack 22 is assembled in the battery compartment 21. The power management device 23 includes a housing 230 and a circuit board assembly in the housing 230, and the circuit board assembly includes at least two circuit boards arranged in layers, and each of the two circuit boards arranged in layers is provided with a connecting part. In the stacking direction, the projection area of the two circuit boards has an overlapping area 259, and the connecting part on at least one of the circuit boards is at least partially located outside the overlapping area 259. Since the two circuit boards are arranged in layers, the connecting part of the circuit board is at least partially located outside the overlapping area 259 of the two circuit boards, which helps to reduce the interference of the circuit board caused by the space limitation of the circuit board when the external wiring harness is connected to the circuit board, and improves the wiring efficiency.

[0103] In some embodiments, in the stacking direction, the projection area of one of the two circuit boards is larger than the projection area of the other circuit board, and the connecting part on the larger circuit board is located outside the overlapping area 259.

[0104] Please also refer to Figure 1 , Figure 2 ,Figure 3 、 Figure 6 and Figures 10-12 In some embodiments, one of the two circuit boards is a first circuit board 24 configured to supply power to the walking assembly 6 and / or the power output assembly 5, and the other is a second circuit board 25 configured to output communication information. The connection portion on the first circuit board 24 is a first connection portion 242 configured to connect to external devices, and the connection portion on the second circuit board 25 is a second connection portion 252 configured to connect to external devices. In the stacking direction, the orthographic projection of the first circuit board 24 and the orthographic projection of the second circuit board 25 have an overlapping area 259, and the first connection portion 242 on the first circuit board 24 is at least partially located outside the overlapping area 259.

[0105] As Figure 12 In some embodiments, in the stacking direction, the orthographic projection area of the first circuit board 24 is larger than the orthographic projection area of the second circuit board 25, and the first connection portion 242 on the first circuit board 24 is at least partially located outside the overlapping area 259, or the first connection portion 242 on the first circuit board 24 can be entirely located outside the overlapping area 259.

[0106] Please also refer to Figures 10-12 In some embodiments, one of the two circuit boards is a first circuit board 24 configured to supply power to the walking assembly 6 and / or the power output assembly 5, and the other is a second circuit board 25 configured to output communication information. The first circuit board 24 is provided with a first mounting surface 241 for mounting the first connection portion 242, and the second circuit board 25 is provided with a second mounting surface 251 for mounting the second connection portion 252, and the first mounting surface 241 and the second mounting surface 251 have the same orientation. When the first circuit board 24 and the second circuit board 25 are stacked and installed, and the first mounting surface 241 and the second mounting surface 251 have the same orientation, the first mounting surface 241 will face the non-mounting surface of the second circuit board 25, which will cause the first connection portion 242 on the first mounting surface 241 to be disturbed by the second circuit board 25 when connected to external devices. Therefore, the first connection portion 242 on the first mounting surface 241 is arranged outside the overlapping area 259, and the first connection portion 242 can reduce the disturbance of the second circuit board 25 when connected.

[0107] Please also refer to Figures 10-12In some embodiments, the first connecting portion 242 is provided on the first mounting surface 241 of the first circuit board 24, and the first connecting portion 242 includes a first terminal group 2421 and a second terminal group 2422 located in different regions. In the stacking direction, the orthographic projection of the first circuit board 24 and the orthographic projection of the second circuit board 25 have an overlapping region 259, and the first terminal group 2421 and the second terminal group 2422 are located on both sides of the overlapping region 259. Especially in the case where the first mounting surface 241 and the second mounting surface 251 face the same direction, the above arrangement enables the first terminal group 2421 and the second terminal group 2422 on the first circuit board 24 to avoid interference from the second circuit board 25 and connect with external devices, respectively.

[0108] Please also refer to Figure 2 , Figure 3 , Figures 10-12 Furthermore, in combination with the foregoing embodiments, the battery compartment 21 includes a first side plate 211 and a second side plate 212 arranged opposite to each other, and the first side plate 211 and the second side plate 212 are both provided with external terminals 213; the battery pack 22 is located between the first side plate 211 and the second side plate 212, and the terminal at one end of the battery pack 22 is connected with the external terminal 213 on the first side plate 211, and the terminal at the other end of the battery pack 22 is connected with the external terminal 213. In some embodiments, part of the terminals in the first terminal group 2421 of the second circuit board 25 will be connected with the external terminals 213 on the first side plate 211, and part of the terminals in the second terminal group 2422 of the second circuit board 25 will be connected with the external terminals 213 on the second side plate 212.

[0109] As shown in Figure 7 , in some embodiments, in the horizontal direction, the first terminal group 2421 is arranged close to the first side plate 211, and the second terminal group 2422 is arranged close to the second side plate 212.

[0110] As shown in Figure 7 and Figure 12 , in some embodiments, the first terminal group 2421 and the second terminal group 2422 on the first circuit board 24 are located on both sides of the second circuit board 25 and arranged in front of and behind each other in the advancing direction of the outdoor working vehicle. The third terminal group 2521 and the fourth terminal group 2522 on the second circuit board 25 are arranged in front of and behind each other in the advancing direction of the outdoor working vehicle.

[0111] As shown in Figure 10As shown, in some embodiments, the first connecting portion 242 is arranged on the first mounting surface 241 of the first circuit board 24, the first connecting portion 242 includes a first terminal group 2421 and a second terminal group 2422 located in different regions, and the first terminal group 2421 and the second terminal group 2422 are located on the same side of the overlapping region 259. Further, the battery compartment 21 includes a first side plate 211 and a second side plate 212 arranged oppositely, and the battery pack 22 is located between the first side plate 211 and the second side plate 212. In the horizontal row direction, the first terminal group 2421 and the second terminal group 2422 can be arranged close to the first side plate 211, or can be arranged close to the second side plate 212.

[0112] In some embodiments, the battery compartment 21 includes a first side plate 211 and a second side plate 212 arranged oppositely, and the battery pack 22 is located between the first side plate 211 and the second side plate 212. In the horizontal row direction, the third terminal group 2521 and the fourth terminal group 2522 on the second circuit board 25 can be arranged close to the first side plate 211, or can be arranged close to the second side plate 212.

[0113] In some embodiments, the power supply system 2 of the outdoor working vehicle of the present application includes a battery pack 22, a battery compartment 21, and a power management device 23. In order to reduce the situation that the large-capacity battery pack 22 causes the output terminal to overheat during the charging and discharging process due to the arrangement of a single output terminal, two output terminals are arranged on the battery pack 22, and each end of the battery pack 22 is arranged with an output terminal. Each output terminal is configured as a terminal for outputting electric energy or charging the battery pack 22.

[0114] As shown in Figure 2 , Figure 3 and Figure 7 , and in order to cooperate with the electrical conduction of the two terminals of the battery pack 22, the battery compartment 21 of the present application includes a first side plate 211 and a second side plate 212 arranged oppositely, and the first side plate 211 and the second side plate 212 are both arranged with an external terminal 213. The battery pack 22 is located between the first side plate 211 and the second side plate 212, the terminal at one end of the battery pack 22 is connected with the external terminal 213 on the first side plate 211, and the terminal at the other end of the battery pack 22 is connected with the external terminal 213. The power management device 23 includes a housing 230 and at least one circuit board located in the housing 230, and the circuit board is arranged with a connecting portion; in the horizontal direction, part of the connecting portion is arranged close to the first side plate 211, and the other part is arranged close to the second side plate 212. It is convenient for part of the connecting portion of the power management device 23 to be electrically connected to the respective external terminals 213 in proximity, thereby facilitating the control of the power management device 23 on the charging and discharging of the battery pack 22.

[0115] Please also refer to Figure 1 , Figure 6 , Figure 7 ,Figure 10 、 Figure 11 and Figure 12 In some embodiments, two circuit boards are arranged in the housing 230, one of which is at least a first circuit board 24 configured to supply power to the walking assembly 6 and / or the power output assembly 5, and the other is at least a second circuit board 25 configured to output communication information. The connection part is configured as a first connection part 242 on the first circuit board 24, which includes a first terminal group 2421 arranged near the first side plate 211 and a second terminal group 2422 arranged near the second side plate 212 in the horizontal direction. The connection part is configured as a second connection part 252 on the second circuit board 25, which includes a third terminal group 2521 arranged near the first side plate 211 and a fourth terminal group 2522 arranged near the second side plate 212 in the horizontal direction. The first connection part 242 is divided into the first terminal group 2421 arranged near the first side plate 211 and the second terminal group 2422 arranged near the second side plate 212, so that the first circuit board 24 connects part of the terminals in the first terminal group 2421 to the external terminals 213 on the first side plate 211 through the wire harness in proximity, and connects part of the terminals in the second terminal group 2422 to the external terminals 213 on the second side plate 212 through the wire harness in proximity. At the same time, the second circuit board 25 connects part of the terminals in the third terminal group 2521 to the external terminals 213 on the first side plate 211 through the wire harness in proximity, and connects part of the terminals in the fourth terminal group 2522 to the external terminals 213 on the second side plate 212 through the wire harness in proximity. While saving wire harnesses, the wire harness layout is more reasonable.

[0116] It should be understood that in some embodiments, the first circuit board 24 of the present application is configured to receive external power to charge the battery pack 22, or receive the power of the battery pack 22 and supply power to one of the power output assembly 5 and the walking assembly 6 or simultaneously supply power to the power output assembly 5 and the walking assembly 6. While the second circuit board 25 is configured to mainly receive and send some information to control the first circuit board 24 to receive external power to charge the battery pack 22 or control the battery pack 22 to discharge externally.

[0117] Please also refer to Figures 2-5 、 Figure 7 and Figure 12In some embodiments, a first interface group 2301 connecting the inside and outside of the shell 230 is arranged on the shell 230 close to the first side plate 211 in the horizontal direction, and a second interface group 2302 connecting the inside and outside of the shell 230 is arranged on the shell 230 close to the second side plate 212. The first terminal group 2421 and the third terminal group 2521 are connected with external devices through the first interface group 2301, and the second terminal group 2422 and the fourth terminal group 2522 are connected with external devices through the second interface group 2302.

[0118] Please refer to Figures 2-4 、 Figures 10-12 In some embodiments, the first interface group 2301 includes a first battery pack connection interface 23011. Part of the terminals in the first terminal group 2421 are configured as first battery pack power terminals 24211, and the external terminals 213 on the first side plate 211 connected with the battery pack 22 are electrically connected with the first battery pack power terminals 24211 through the first battery pack connection interface 23011. Part of the terminals in the third terminal group 2521 are configured as first battery pack signal terminals 25211, and the external terminals 213 on the first side plate 211 connected with the battery pack 22 are electrically and signal connected with the first battery pack signal terminals 25211 through the first battery pack connection interface 23011. The external terminals 213 arranged close to the first side plate 211 on the battery pack 22 are electrically connected with the first circuit board 24, and signal connected with the second circuit board 25.

[0119] Please refer to Figures 2-4 、 Figures 10-12 In some embodiments, the second interface group 2302 includes a second battery pack connection interface 23021, and part of the terminals of the second terminal group 2422 are configured as second battery pack power terminals 24221, and the external terminals 213 on the second side plate 212 connected with the battery pack 22 are electrically connected with the second battery pack power terminals 24221 through the second battery pack connection interface 23021. Part of the fourth terminal group 2522 is configured as second battery pack signal terminals 25221, and the external terminals 213 on the second side plate 212 connected with the battery pack 22 are electrically and signal connected with the second battery pack signal terminals 25221 through the second battery pack connection interface 23021. The external terminals 213 arranged close to the second side plate 212 on the battery pack 22 are electrically connected with the first circuit board 24, and signal connected with the second circuit board 25.

[0120] As Figure 10 - to Figure 12In some embodiments, the first electrical element is configured on the first circuit board 24, and is located between the first terminal group 2421 and the second terminal group 2422. The first electrical element includes a switch array 243, which can be an array of a plurality of mos switches 2431, and a capacitor array 244, which can be an array of a plurality of capacitors 2441. The second electrical element is configured on the second circuit board 25, and is located between the third terminal group 2521 and the fourth terminal group 2522. The second electrical element includes a processor 257 and other processing modules.

[0121] Please also refer to Figures 1-4 、 Figures 10-12 In some embodiments, the first side plate 211 is further provided with a charging connector 2112 for connecting with an external charging gun. The first interface group 2301 includes a charging interface 23012. Part of the terminals in the first terminal group 2421 are configured as charging terminals 24212 capable of being connected with the charging connector 2112. The charging connector 2112 can be connected with the charging terminals 24212 through the charging interface 23012 by a wire harness. The charging terminals 24212 are respectively electrically connected with the first battery pack electrical terminal 24211 and the second battery pack electrical terminal 24221 on the first circuit board 24. The third terminal group 2521 includes a charge-discharge signal terminal 25213 capable of being connected with the charging connector 2112. The charging connector 2112 can be connected with the charge-discharge signal terminal 25213 through the charging interface 23012 by a wire harness. The charging gun supplies power to the outdoor working vehicle through the charging connector 2112. The charging connector 2112 is connected with the charging terminals 24212. The charging terminals 24212 are respectively electrically connected with the first battery pack electrical terminal 24211 and the second battery pack electrical terminal 24221 through the first circuit board 24, so as to supply power to the battery pack 22 and transmit the charging information of the battery pack 22 by the charge-discharge signal terminal 25213.

[0122] Please also refer to Figures 2-4 、 Figures 10-14In some embodiments, the outdoor working vehicle further comprises a controller for controlling the operation of the traveling assembly 6 and the power output assembly 5. The second interface set 2302 comprises an electric energy transmission interface 23022. The second terminal set 2422 comprises electric energy output terminals 24222 capable of outputting electric energy, and the electric energy output terminals 24222 are capable of being connected to the controller through a wire harness passing through the electric energy transmission interface 23022. The second interface set 2302 further comprises a signal transmission interface 23023, and the fourth terminal set 2522 is configured as signal transmission terminals 25223 capable of being connected to the controller in signal, and the signal transmission terminals 25223 are capable of being connected to the controller in electrical signal through a wire harness passing through the signal transmission interface 23023. The battery pack 22 transmits electric energy to the power output assembly 5 and / or the traveling assembly 6 on the outdoor working vehicle through the electric energy output terminals 24222 on the first circuit board 24, and monitors the electric energy transmission of the electric energy output terminals 24222 in real time through the signal transmission terminals 25223, so that the second circuit board 25 controls the battery pack 22 to supply power to the traveling assembly 6 and / or the power output assembly 5.

[0123] Please refer to Figures 2-4 、 Figures 10-14 In some embodiments, the charging terminals 24212 comprise a charging positive terminal 242121 and a charging negative terminal 242122, the electric energy output terminals 24222 comprise an output positive terminal 242221 and an output negative terminal 242222, and a conductive body 245 is connected between the charging negative terminal 242122 and the output negative terminal 242222. The second circuit board 25 is provided with a current sensor for detecting electric current, and further, the current sensor comprises a Hall ring 258 provided with an inner hole, and the conductive body 245 at least partially extends into the inner hole of the Hall ring 258. Specifically, the conductive body 245 is further provided with a conductive column 2451 extending into the inner hole of the Hall ring 258. The Hall ring 258 can monitor the size of the electric current flowing through the conductive body 245, so as to transmit the size of the electric current to the second circuit board 25 and the controller, so as to interact with the battery pack 22 according to the size of the electric current monitored by the Hall ring 258.

[0124] Please refer to Figures 2-4 、 Figures 10-14In some embodiments, the first side plate 211 is provided with a first heat dissipation fan 2111 capable of dissipating heat for the battery pack 22, and the second side plate 212 is provided with a second heat dissipation fan 2112 capable of dissipating heat for the battery pack 22. Some interfaces in the first interface group 2301 further include a first fan interface 23013 configured to be connected with the first heat dissipation fan 2111, and the third terminal group 2521 includes a first fan terminal 25212 configured to be electrically connected with the first heat dissipation fan 2111. The second interface group 2302 further includes a second fan interface 23024 configured to be connected with the second heat dissipation fan 2112, and the fourth terminal group 2522 includes a second fan terminal 25222 configured to be electrically connected with the second heat dissipation fan 2112. In some embodiments, a plurality of first heat dissipation fans 2111 are provided on the first side plate 211, and a plurality of second heat dissipation fans 2112 are provided on the first side plate 211.

[0125] Please also refer to Figures 2-4 、 Figures 10-14 In the present application, the first heat dissipation fan 2111 and the second heat dissipation fan 2112 are controlled by the second circuit board 25 to dissipate heat for the battery pack 22. Specifically, the second circuit board 25 can control the rotation speed and forward / reverse rotation of the first heat dissipation fan 2111 and the second heat dissipation fan 2112, so as to execute corresponding instructions according to the required heat dissipation condition of the battery pack 22. For example, when the heat generated by the battery pack 22 is not high, only part of the plurality of first heat dissipation fans 2111 and the plurality of second heat dissipation fans 2112 are used to dissipate heat for the battery pack 22; when the heat generated by the battery pack 22 is relatively high, all the plurality of first heat dissipation fans 2111 and the plurality of second heat dissipation fans 2112 are started to dissipate heat for the battery pack 22.

[0126] Further, the plurality of first heat dissipation fans 2111 and the plurality of second heat dissipation fans 2112 in the present application can simultaneously blow air to the battery pack 22, or simultaneously exhaust air to the outside to extract the heat in the battery pack 22 to cool the battery pack 22, or part of the plurality of first heat dissipation fans 2111 and the plurality of second heat dissipation fans 2112 rotate forward and part of them rotate reversely.

[0127] In some embodiments, the second circuit board 25 is further provided with a fan voltage reduction module 2561, the second circuit board 25 is electrically connected with the first circuit board 24, obtains the electric energy of the battery pack 22 through the first circuit board 24, and converts the high voltage of the battery pack 22 into low voltage required for the operation of the first heat dissipation fan 2111 and the second heat dissipation fan 2112 through the fan voltage reduction module 2561.

[0128] It should be understood that the first circuit board 24 in the present application can not only provide power for the power output assembly 5 and / or the walking assembly 6, but also provide power for the second circuit board 25. The second circuit board 25 can output communication information to the first circuit board 24 to control the external power supply operation of the first circuit board 24.

[0129] Please also refer to Figures 2-4 、 Figures 10-14 In some embodiments, the battery compartment 21 is connected with a reversing radar 214 and a radar controller 215 electrically connected with the reversing radar 214, the shell 230 is further provided with an expansion interface 23014, the second circuit board 25 is further provided with a radar terminal 253, the radar terminal 253 can be connected with the radar controller 215 through the expansion interface 23014 and a wire harness, and the radar controller 215 is connected with the radar through the wire harness. The second circuit board 25 is further provided with a radar voltage reduction module 254, the second circuit board 25 is electrically connected with the first circuit board 24, obtains the power of the battery pack 22 through the first circuit board 24, converts the high voltage of the battery pack 22 into low voltage required for the operation of the radar controller 215 and the radar through the radar voltage reduction module 254, the radar controller 215 obtains the information transmitted by the radar, processes the information and transmits the information to the first circuit board 24. Specifically, the reversing radar 214 is used for obstacle detection during vehicle driving or reversing to avoid collision. The reversing radar is electrically connected and communicatively connected with the second circuit board, and the second circuit board is further configured to give a warning prompt when it is determined that there is an obstacle within a certain distance range according to the detection result of the reversing radar.

[0130] Please also refer to Figures 2-4 、 Figures 10-14 In some embodiments, the battery compartment 21 is connected with a reversing radar 214 and a radar controller 215 electrically connected with the reversing radar 214, the shell 230 is further provided with an expansion interface 23014, the second circuit board 25 is further provided with a radar terminal 253, the radar terminal 253 can be connected with the radar controller 215 through the expansion interface 23014 and a wire harness, and the radar controller 215 is connected with the radar through the wire harness. The second circuit board 25 is further provided with a radar voltage reduction module 254, the second circuit board 25 is electrically connected with the first circuit board 24, obtains the power of the battery pack 22 through the first circuit board 24, converts the high voltage of the battery pack 22 into low voltage required for the operation of the radar controller 215 and the radar through the radar voltage reduction module 254, the radar controller 215 obtains the information transmitted by the radar, processes the information and transmits the information to the first circuit board 24. Specifically, the reversing radar 214 is used for obstacle detection during vehicle driving or reversing to avoid collision. The reversing radar is electrically connected and communicatively connected with the second circuit board, and the second circuit board is further configured to give a warning prompt when it is determined that there is an obstacle within a certain distance range according to the detection result of the reversing radar.

[0131] Please also refer to Figures 1-4 、 Figures 10-14In some embodiments, the opening of the battery compartment 21 is provided with a compartment cover, and the compartment cover is provided with a monitoring switch 28 capable of monitoring the opening and closing state of the compartment cover. The shell 230 is provided with an expansion interface 23014. The circuit board is at least a second circuit board 25 capable of outputting communication information, and the second circuit board 25 is provided with a switch terminal 256. The monitoring switch 28 can be connected to the switch terminal 256 through the wire harness passing through the expansion interface 23014. When the outdoor working vehicle is charging, since the charging mode is mostly high-voltage charging, when the operator opens the compartment cover, the monitoring switch 28 on the compartment cover monitors that the compartment cover is in the open state, and transmits the information that the compartment cover is in the open state to the second circuit board 25 in the power management device 23. The second circuit board 25 will control the current and voltage of the charging to prevent harm to the operator.

[0132] The layered arrangement of the first circuit board 24 and the second circuit board 25 in the present application also makes it possible to install more interfaces for external wiring on the first circuit board 24 and the second circuit board 25 in a limited space, so that some functional modules can be added on the first circuit board 24 and the second circuit board 25 according to the needs, and the information interaction or power transmission to the outside can be realized through the increased interfaces, thereby enriching the functionality of the power management device 23. As described above, the tail light step-down module, the radar step-down module, the cooling fan step-down module, etc. are arranged on the second circuit board 25.

[0133] In some embodiments, in the horizontal direction, the power management device 23 is arranged between the first side plate 211 and the second side plate 212, so that the power management device 23 can be more evenly electrically connected and signal connected with the external terminals 213, the first cooling fan 2111, and the second cooling fan 2112 on the first side plate 211 and the second side plate 212 in the horizontal direction.

[0134] Please also refer to Figures 2-4 , Figures 10-14In some embodiments, the power supply system 2 of the outdoor working vehicle of the present application is at least configured to supply power to the outdoor working vehicle, the power supply system 2 comprises a battery compartment 21, a battery pack 22 and a power management device 23, the battery pack 22 is assembled in the battery compartment 21, the battery pack 22 can discharge to the outdoor working vehicle and can obtain external electric energy to charge itself; the power management device 23 is at least configured to control the charging and discharging of the battery pack 22, the power management device 23 comprises a shell 230 and at least one circuit board in the shell 230, the circuit board is provided with a charging terminal 24212 and an electric energy output terminal 24222 which are independently arranged. The charging terminal 24212 is configured to obtain the electric energy transmitted by the charging connector 2112 and charge the battery pack 22, and the electric energy output terminal 24222 is configured to receive the power supply of the battery pack 22 and discharge to the controller. The present application independently arranges the terminals for obtaining external electric energy and the terminals for external output on the circuit board, so that the wire harness layout is dispersed, and a large number of wire harnesses are not concentrated, and the external lead is not convenient.

[0135] Please also refer to Figures 10-12 、 Figure 13 In some embodiments, two circuit boards are arranged in the shell 230, one of which is configured as a first circuit board 24, and the other is configured as a second circuit board 25. The first circuit board 24 is at least configured to mount the charging terminal 24212 and the electric energy output terminal 24222. The second circuit board 25 is at least configured to control the operation of the first circuit board 24, and the first circuit board 24 has a charging state and a discharging state. In the charging state, the second circuit board 25 can control the first circuit board 24 to supply power to the battery pack 22 through the charging terminal 24212. In the discharging state, the second circuit board 25 can control the first circuit board 24 to supply power to the controller through the electric energy output terminal 24222. The first circuit board 24 is controlled by the second circuit board 25, and the second circuit board 25 charges the battery pack 22 through the charging terminal 24212 on the first circuit board 24, and the second circuit board 25 supplies power to the controller through the electric energy output terminal 24222 on the first circuit board 24.

[0136] As shown in Figures 10-14 In some embodiments, the first circuit board 24 and the second circuit board 25 are arranged in a stacked manner, and in the stacking direction, the projection surface of the first circuit board 24 and the projection surface of the second circuit board 25 have an overlapping area 259, and the charging terminal 24212 and the electric energy output terminal 24222 are located outside the overlapping area 259. Arranging the charging terminal 24212 and the electric energy output terminal 24222 outside the above-mentioned overlapping area 259 can reduce the interference of the second circuit board 25 when connecting the wire harness of the charging terminal 24212 and the electric energy output terminal 24222. Moreover, when connecting the wire harness, the operator directly performs quick plug-in and plug-out operation on the connecting part extending into the second accommodating cavity, thereby improving the efficiency of assembly on the production line.

[0137] like Figures 10-14 As shown, in some embodiments, the first circuit board 24 and the second circuit board 25 are stacked, and the conductor 245 is arranged across the second circuit board 25. When the first circuit board 24 and the second circuit board 25 are arranged relatively compactly, the conductor 245 is arranged across the second circuit board 25 to save space.

[0138] like Figures 1-3 In some embodiments, a switch array 243 and a capacitor array 244 are electrically connected to each other on the circuit board. The switch array 243 is configured to control the on / off of the current flowing through it, and the capacitor array 244 is configured to store the charge flowing through it. The capacitor array 244 is electrically connected to the charging terminal 24212 and the power output terminal 24222, respectively. In the charging state, the electric energy transmitted by the charging connector 2112 can charge the battery pack 22 in sequence through the charging terminal 24212, the capacitor array 244, and the switch array 243. In the discharging state, the electric energy of the battery pack 22 can be discharged to the controller in sequence through the switch array 243, the capacitor array 244, and the power output terminal 24222. Specifically, the circuit board is the first circuit board 24.

[0139] like Figure 8 In some embodiments, the circuit board is further provided with battery pack power terminals connected to the battery pack 22. The battery pack power terminals are configured on the circuit board to be electrically connected to the switch array 243. The battery pack 22 receives electrical energy from the switch array 243 via the battery pack power terminals or outputs electrical energy to the switch array 243 via the battery pack power terminals. In the discharge state, the battery pack 22 transmits electrical energy via the battery pack 22 power terminals to the capacitor array 244 via the switch array 243. The capacitor array 244 then transmits the electrical energy to the travel component 6 and / or the power output component 5. The capacitor array 244 can also transmit electrical energy to other electrical devices on the outdoor work vehicle or to the second circuit board 25 for power supply. In the charging state, external electrical energy is supplied to the capacitor array 244 via the charging connector 2112. The capacitor array 244 transmits the electrical energy via the switch array 243 and then to the battery pack 22 power terminals to charge the battery pack 22. The battery pack electrical terminals in this embodiment are the first battery pack electrical terminals 24211 and the second battery pack electrical terminals 24221 described above.

[0140] Please also see Figures 10-12In some embodiments, the outdoor working vehicle of the present application comprises a battery compartment 21, a battery pack 22 and a power management device 23. The battery compartment 21 has an opening. The battery pack 22 is configured to be assembled in the battery compartment 21 along the opening, and the battery pack 22 can power the outdoor working vehicle. The power management device 23 is configured to at least control the charging and discharging of the battery pack 22, and an air flow channel 27 is formed between the power management device 23 and the battery compartment 21. The power management device 23 comprises a housing 230 having a cavity and at least one circuit board located in the cavity, and the part of the housing 230 in contact with the air flow channel 27 is a heat dissipation part, and the circuit board is at least partially arranged in contact with the heat dissipation part. In this way, the heat generated by the power management device 23 during operation can be exchanged with external air to achieve the purpose of dissipating heat from the power management device 23.

[0141] Referring to Figure 7 In some embodiments, the cavity of the housing 230 can be the first accommodating cavity 232 in the foregoing embodiments.

[0142] As Figures 10-12 In some embodiments, two circuit boards are arranged in the cavity, one of which is at least a first circuit board 24 capable of delivering high-power current, and the other is at least a second circuit board 25 capable of outputting communication information, and the first circuit board 24 is arranged in contact with the heat dissipation part. The first circuit board 24 capable of delivering high-power current in the present application is equivalent to the first circuit board 24 capable of powering the walking assembly 6 and / or the power output assembly 5 in the foregoing embodiments. As described above, the first circuit board 24 is provided with a mos switch 2431 and a capacitor 2441, so it will generate more heat. Arranging the first circuit board 24 close to the first housing 230 is beneficial to heat dissipation of the circuit board.

[0143] As Figure 2 and Figure 3 In some embodiments, on the outdoor working vehicle, the circuit board assembly comprises a first circuit board 24 and a second circuit board 25 arranged in layers one above the other, and the first circuit board 24 is arranged in contact with the heat dissipation part. Specifically, the first circuit board 24 is capable of delivering high-power current, and the second circuit board 25 is capable of delivering control instructions to control the operation of the first circuit board 24. Since the first circuit board 24 generates more heat, one of the purposes of independently designing the first circuit board 24 and the second circuit board 25 is that the high heat generated by the first circuit board 24 will not affect the operation of the second circuit board 25, but will be exchanged with the outside through the heat dissipation part.

[0144] As Figure 6 and Figure 2In some embodiments, the power management device 23 is connected to the bottom of the battery compartment 21 through the bracket 26, and the airflow channel 27 is formed between the bottom of the battery compartment 21 and the power management device 23. During the travel of the outdoor working vehicle, the airflow passes through the bottom of the battery compartment 21 and can take away the heat generated by the power management device 23. Moreover, the air is in a compressed state in the airflow channel 27, and once discharged from the airflow channel 27, the compressed air will instantaneously expand and absorb heat, which can further cool the heat dissipation part.

[0145] In some embodiments, the outdoor working vehicle of the present application comprises a battery compartment 21, a battery pack 22 and a power management device 23, the battery compartment 21 has an opening; the battery pack 22 is configured to be assembled in the battery compartment 21 along the opening, and the battery pack 22 can supply power to the outdoor working vehicle; the power management device 23 is at least configured to control the charging and discharging of the battery pack 22, and the airflow channel 27 is formed between the power management device 23 and the battery compartment 21; the power management device 23 comprises a housing 230 with a cavity and at least one circuit board in the cavity, the part of the housing 230 in contact with the airflow channel 27 is the heat dissipation part, and the circuit board is arranged close to the heat dissipation part.

[0146] As described above, the circuit board is arranged close to the airflow channel 27, so that the heat dissipation effect of the circuit board is better than that of the circuit board arranged relatively far from the airflow channel 27.

[0147] In some embodiments, two circuit boards are arranged in the cavity of the power management device 23 on the outdoor working vehicle, one of which is at least a first circuit board 24 capable of transmitting high-power current, and the other is at least a second circuit board 25 capable of outputting communication information, and the first circuit board 24 is arranged close to the heat dissipation part. Arranging the first circuit board 24 close to the part of the first housing 230 is conducive to the heat dissipation of the first circuit board 24 which generates more heat.

[0148] As shown in Figure 3 , in some embodiments, the heat dissipation part is a first cover plate 234 at the first accommodating cavity 232. Further, the first cover plate 234 is made of a metal material.

[0149] As shown in Figure 6 , Figures 10-12 , and Figure 6As shown, in some embodiments, the present application also includes a power management device 23 with a heat dissipation function, which is at least used in outdoor work vehicles. The power management device 23 includes: a housing body 231 having an open chamber, the chamber being configured to accommodate at least one circuit board; a heat conductor that can cover the opening of the chamber, and the heat conductor can exchange heat generated by the circuit board during operation with an external cold medium. The circuit board dissipates heat with the help of the heat conductor, and the heat generated by the circuit board during operation can be dissipated in a timely manner. It should be understood that the chamber is the aforementioned first accommodating chamber 232, and the heat conductor is the aforementioned first cover plate 234.

[0150] like ​ In some embodiments, a heat-generating electrical component is disposed on one surface of the circuit board, while the other surface is bonded to a heat-conducting member. This bonding effectively improves the heat dissipation of the circuit board. The heat-generating electrical component includes the aforementioned MOS switch 2431 and capacitor 2441.

[0151] like ​ As shown, in order to further improve the heat dissipation effect, in some embodiments, the heat conductor is set to a larger volume, which helps the heat conductor to exchange heat with the external cold medium, thereby improving the heat dissipation effect of the circuit board. Specifically, the heat conductor is arranged parallel to the circuit board, and along the parallel direction perpendicular to the heat conductor and the circuit board, the projected area of ​​the heat conductor is greater than or equal to the projected area of ​​the circuit board. In some embodiments, the ratio of the projected area of ​​the heat conductor to the projected area of ​​the circuit board is 1 to 1.5. In some embodiments, the ratio of the projected area of ​​the heat conductor to the projected area of ​​the circuit board is 1, 1.2 or 1.5.

[0152] In some embodiments, the dimensions of the power management device 23 of the present application are: 280mm~330mm in length, 200mm~260mm in width, and 45mm~65mm in height. In some embodiments, the dimensions of the power management device 23 are: 280mm, 310mm or 330mm in length, 200mm, 230mm or 260mm in width, and 45mm, 58mm or 65mm in height.

[0153] In some embodiments, the housing body 231 and the heat conducting member are made of different materials, and the thermal conductivity of the heat conducting member is greater than that of the housing body 231. The greater the thermal conductivity, the better the heat dissipation effect.

[0154] In some embodiments, the heat conducting member is made of a metal material, and the housing body 231 is made of a non-metal material.

[0155] The present application is not limited to the above-described specific embodiments. A person of ordinary skill in the art can easily understand that there are many alternatives of the outdoor work vehicle of the present application without departing from the principles and scope of the present application. The scope of protection of the present application is defined by the contents of the claims.

Claims

1. An outdoor work vehicle, characterized in that: include: A walking assembly, configured to support the outdoor work vehicle in walking; a power take-off assembly configured to perform outdoor work; a power supply system configured at least to supply power to the outdoor work vehicle, the power supply system comprising a battery compartment, a battery pack mounted in the battery compartment, and a power management device disposed outside the battery compartment, the power management device being configured to at least control the charging or discharging of the battery pack; The power management device includes a shell body, wherein the shell body is formed with a plurality of accommodating cavities isolated from each other.

2. The outdoor work vehicle according to claim 1, characterized in that: The multiple accommodating cavities include a first accommodating cavity and a second accommodating cavity isolated from each other, the first accommodating cavity is configured to accommodate at least one circuit board, and the circuit board is provided with a connecting portion for connecting to the outside, and the shell body is provided with a connecting portion connecting the first accommodating cavity and the second accommodating cavity, and the connecting portion extends from the connecting portion to the second accommodating cavity, and the second accommodating cavity is configured as a wiring area, and the wiring area is used to electrically connect and / or signal connect the circuit board assembly extending into the second accommodating cavity with external devices.

3. The outdoor work vehicle according to claim 2, characterized in that: The first accommodating cavity is configured to accommodate a first circuit board and a second circuit board, the first circuit board is configured to provide electrical energy to the travel component and / or the power output component, and the second circuit board is configured to transmit communication signals, the first circuit board includes a first connecting portion, and the second circuit board includes a second connecting portion; The connecting portion includes a first through hole and a second through hole, and the wiring area includes a first wiring region and a second wiring region; The first connection portion can extend from the first accommodating cavity through the first through hole to the first wiring area, and the second connection portion can extend from the first accommodating cavity through the second through hole to the second wiring area.

4. The outdoor work vehicle according to claim 3, characterized in that: On the outdoor work vehicle, the first wiring area and the second wiring area are at different heights.

5. The outdoor work vehicle according to claim 4, characterized in that: The first accommodating cavity is formed with a first step surface and a second step surface of different heights. The first connecting portion is arranged corresponding to the first step surface, and the second connecting portion is arranged corresponding to the second step surface.

6. The outdoor work vehicle according to claim 5, characterized in that: One end of the first through hole is located at the first wiring area, and the other end is located at the first step surface; One end of the second through hole is located at the second wiring area, and the other end is located at the second step surface.

7. The outdoor work vehicle according to claim 1, characterized in that: The shell body is formed with a first accommodating cavity and a second accommodating cavity that are isolated from each other. There are two second accommodating cavities and one first accommodating cavity. One of the two second accommodating cavities is arranged on one side of the first accommodating cavity, and the other is arranged on the other side of the first accommodating cavity.

8. The outdoor work vehicle according to claim 2 or 7, characterized in that: A first cover plate is disposed at the opening of the first accommodating cavity, and a second cover plate is disposed at the opening of the second accommodating cavity.

9. The outdoor work vehicle according to claim 8, characterized in that: A first sealing member is provided between the first cover plate and the housing body.

10. The outdoor work vehicle according to claim 8, characterized in that: A second sealing member is provided between the second cover plate and the housing body.

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