Outdoor work vehicle

Abstract

The utility model relates to an outdoor working vehicle which comprises a battery compartment with an opening; the battery pack is configured to be assembled in the battery compartment along the opening, and the battery pack can supply power to the outdoor operation vehicle; the power management device is configured to control charging and discharging of the battery pack, and an airflow channel is formed between the power management device and the battery compartment; the power management device comprises a shell with a cavity and at least one circuit board located in the cavity, the part, making contact with the airflow channel, of the shell is a heat dissipation part, and at least part of the circuit board is attached to the heat dissipation part. According to the outdoor operation vehicle, the battery bin and the power management device form the airflow channel, heat dissipation is conducted on the circuit board through the heat dissipation part, the heat dissipation part is arranged in the airflow channel, flowing airflow can be formed in the airflow channel when the outdoor operation vehicle walks, heat exchange between the circuit board and the outside through the heat dissipation part is achieved, and the service life of the circuit board is prolonged. The heat dissipation effect of the circuit board is improved.

Description

[Technical field]

[0001] The present application relates to the technical field of working equipment, and in particular to an outdoor working vehicle. [Background Technology]

[0002] With the advancement of battery technology, electric drive is gradually replacing engine drive in outdoor work vehicles. A battery pack, typically containing one or more cells, can serve as a power source for outdoor work vehicles or portable power tools. Power management devices, which manage the charge and discharge of the battery pack, are essential for electric outdoor work vehicles.

[0003] The power management device includes a housing and a circuit board installed in the housing. The circuit board will generate heat during operation, especially circuit boards with excessive current. In order to protect the circuit board, the circuit board will be placed in the housing. Although this protects the circuit board from external physical impact, the heat dissipation effect of the circuit board is greatly reduced, which will affect the use effect and service life of the circuit board.

[0004] In view of this, it is indeed necessary to provide an improved outdoor work vehicle to overcome the defects of the prior art. [Utility Model Content]

[0005] In view of the shortcomings of the prior art, one of the objectives of the present application is to provide an outdoor work vehicle that can dissipate heat from a circuit board of a power management device.

[0006] The technical solution adopted by this application to solve the existing technical problems is: an outdoor work vehicle, comprising: a battery compartment having an opening; a battery pack, at least configured to be assembled in the battery compartment along the opening, and the battery pack can supply power to the outdoor work vehicle; a power management device, configured to control the charging and discharging of the battery pack, an air flow channel being formed between the power management device and the battery compartment; the power management device comprising a shell having a chamber and at least one circuit board located in the chamber, the portion of the shell in contact with the air flow channel being a heat dissipation portion, and the circuit board is at least partially arranged in contact with the heat dissipation portion.

[0007] In some embodiments, two circuit boards are provided in the chamber, one of which is at least configured as a first circuit board capable of transmitting high-power current, and the other is at least configured as a second circuit board capable of outputting communication information, and the first circuit board is arranged in contact with the heat dissipation portion.

[0008] In some embodiments, the power management device is connected to the bottom of the battery compartment via a bracket.

[0009] In some embodiments, the battery compartment includes a first side panel and a second side panel arranged opposite to each other, the battery pack is located between the first side panel and the second side panel, and the first side panel and the second side panel are both provided with external terminals for connecting to the battery pack; in the horizontal direction, the power management device is arranged between the first side panel and the second side panel, and the power management device can be connected to the external terminals on the first side panel and the second side panel respectively.

[0010] In some embodiments, in the horizontal direction, a first connection interface is provided on the shell near the first side panel, and a second connection interface is provided on the shell near the second side panel; the external terminal on the first side panel can be electrically connected and / or signal-connected with the circuit board assembly through the first connection interface, and the external terminal on the second side panel can be electrically connected and / or signal-connected with the circuit board assembly through the second connection interface.

[0011] In some embodiments, two circuit boards are provided in the chamber, one of which is at least configured as a first circuit board capable of delivering high-power current, and the other is at least configured as a second circuit board capable of outputting communication information, the first circuit board includes a first connecting part, and the second circuit board includes a second connecting part; the external terminals on the first side panel can be connected to the first connecting part and the second connecting part respectively; the external terminals on the second side panel can be connected to the first connecting part and the second connecting part respectively.

[0012] In some embodiments, in the horizontal direction, the first connecting portion includes a first terminal group arranged near the first side panel and a second terminal group arranged near the second side panel, the first terminal group is connected to the external terminal on the first side panel, and the second terminal group is connected to the external terminal on the first side panel; the second connecting portion includes a third terminal group arranged near the first side panel and a fourth terminal group arranged near the second side panel, the third terminal group is connected to the external terminal on the first side panel, and the fourth terminal group is connected to the external terminal on the second side panel.

[0013] The present application also provides an outdoor work vehicle, comprising: a battery compartment having an opening; a battery pack configured to be assembled in the battery compartment along the opening, and the battery pack can supply power to the outdoor work vehicle; a power management device configured to control the charging or discharging of the battery pack, an air flow channel being formed between the power management device and the battery compartment; the power management device comprising a shell having a chamber and at least one circuit board located in the chamber, the portion of the shell in contact with the air flow channel being a heat dissipation portion, and the circuit board is arranged close to the heat dissipation portion.

[0014] In some embodiments, on the outdoor work vehicle, two circuit boards are provided in the chamber, one of which is at least configured as a first circuit board capable of transmitting high-power current, and the other is at least configured as a second circuit board capable of outputting communication information, and the first circuit board is arranged close to the heat dissipation portion.

[0015] In some embodiments, the power management device is connected to the bottom of the battery compartment via a bracket.

[0016] Compared with the prior art, this application has the following beneficial effects:

[0017] In this application, the battery compartment and the power management device form an air flow channel. By dissipating the heat of the circuit board with the help of the heat dissipation part and placing the heat dissipation part in the air flow channel, a flowing airflow will be formed in the air flow channel when the outdoor work vehicle is moving, so that the circuit board can exchange heat with the outside through the heat dissipation part, thereby improving the heat dissipation effect of the circuit board.

[0018] Moreover, the air is in a compressed state in the air flow channel. Once discharged from the air flow channel, the compressed air will instantly expand and absorb heat, which can further cool the heat dissipation part. [Brief Description of the Drawings]

[0019] The specific embodiments of the present application are further described in detail below with reference to the accompanying drawings:

[0020] Figure 1 This is a three-dimensional view of the entire outdoor work vehicle in some embodiments of the present application;

[0021] Figure 2 is a diagram showing the positional relationship between a battery compartment and a power management device of an outdoor work vehicle at an angle in some embodiments of the present application;

[0022] Figure 3 is a diagram showing the positional relationship between the battery compartment and the power management device of an outdoor work vehicle from another angle in some embodiments of the present application;

[0023] Figure 4 is a schematic diagram of a three-dimensional structure of a power management device for an outdoor work vehicle in some embodiments of the present application from one angle;

[0024] Figure 5 is a schematic diagram of the three-dimensional structure of the power management device for outdoor work vehicles in some embodiments of the present application from another angle;

[0025] Figure 6 is an exploded view of a portion of the structure of a power management device for an outdoor work vehicle in some embodiments of the present application;

[0026] Figure 71 is a schematic structural diagram of a battery compartment of an outdoor work vehicle connected to a first circuit board and a second circuit board, respectively, in some embodiments of the present application;

[0027] Figure 8 This is a schematic structural diagram of an outer shell of an outdoor work vehicle according to some embodiments of the present application from an angle;

[0028] Figure 9 is a schematic structural diagram of the outer shell of an outdoor work vehicle in some embodiments of the present application from another angle;

[0029] Figure 10 is a schematic structural diagram of a first circuit board in some embodiments of the present application;

[0030] Figure 11 is a schematic structural diagram of a second circuit board in some embodiments of the present application;

[0031] Figure 12 is a schematic diagram of a top view of the first circuit board and the second circuit board in the stacking direction in some embodiments of the present application;

[0032] Figure 13 Schematic diagram of the positions of the first circuit board, the second circuit board, and the first cover plate of an outdoor work vehicle in some embodiments of the present application;

[0033] Figure 14 It is a logic block diagram of the power management device, battery compartment, battery pack, controller, power output component and travel component of an outdoor work vehicle in some embodiments of the present application.

[0034] The meaning of the reference numerals in the figures:

[0035] 1. Frame; 2. Power System; 21. Battery Compartment; 211. First Side Panel; 2111. First Cooling Fan; 2112. Charging Connector; 212. Second Side Panel; 2112. Second Cooling Fan; 213. External Terminals; 214. Parking Sensor; 215. Radar Controller; 216. Taillight

[0036] 22. Battery pack;

[0037] 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;

[0038] 2302, second interface group; 23021, second battery pack connection interface; 23022, power transmission interface; 23023, signal transmission interface; 23024, second fan interface;

[0039] 231, housing body; 232, first accommodating cavity; 2321, first step surface; 23211, first through hole; 2322, second step surface; 23221, second through hole;

[0040] 233, second accommodating cavity; 2331, first wiring area; 2332, second wiring area;

[0041] 234, first cover plate; 2341, sealing accommodating groove; 2342, sealing strip; 235, second cover plate;

[0042] 24. First circuit board; 241. First mounting surface; 242. First connecting portion;

[0043] 2421, first terminal group; 24211, first battery pack power terminal; 24212, charging terminal; 242121, positive charging terminal; 242122, negative charging terminal;

[0044] 2422, second terminal group; 24221, second battery pack power terminal; 24222, power output terminal; 242221, positive output terminal; 242222, negative output terminal; 243, switch array; 2431, MOS switch; 244, capacitor array; 2441, capacitor; 245, conductor; 2451, conductive column;

[0045] 25. Second circuit board; 251. Second mounting surface; 252. Second connecting portion;

[0046] 2521, third terminal group; 25211, first battery pack signal terminal; 25212, first fan terminal; 25213, charge and discharge signal terminal;

[0047] 2522, fourth terminal group; 25221, second battery pack signal terminal; 25222, second fan terminal; 25223, signal transmission terminal;

[0048] 253, radar terminal; 254, radar step-down module; 255, taillight terminal; 2551, taillight step-down module; 256, switch terminal; 2561, fan step-down module; 257, processor; 258, Hall ring; 259, overlapping area;

[0049] 26. Bracket; 27. Airflow channel; 28. Monitoring switch; 3. Operating assembly; 31. Left operating lever; 32. Right operating lever; 4. Seat; 5. Power output assembly; 6. Travel assembly; 61. Front travel wheel; 62. Rear travel wheel. [Specific implementation method]

[0050] To make the purpose, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of this application.

[0051] In the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed or detachable connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application in specific contexts.

[0052] See also Figure 1 The figure shows an outdoor work vehicle according to an embodiment of the present application, which includes a vehicle frame 1 , an operating assembly 3 , a seat 4 , a power output assembly 5 , a travel assembly 6 and a power supply system 2 .

[0053] The vehicle frame 1 is extended along a straight line, and the operating assembly 3 , the seat 4 , the power output assembly 5 , the travel assembly 6 and the power supply system 2 are arranged at different positions on the vehicle frame 1 .

[0054] The operating assembly 3 includes a left operating lever 31 and a right operating lever 32, respectively, disposed on the left side of the outdoor work vehicle. The operator controls the left operating lever 31 and the right operating lever 32 to control the outdoor work vehicle forward, backward, or turn. The operating assembly 3 can also be a steering wheel capable of controlling the outdoor work vehicle.

[0055] In some embodiments, the operating assembly 3 is provided with control buttons for adjusting the operating speed of the power output assembly 5 and the travel assembly 6, thereby facilitating the operator to quickly and accurately control the operation of the outdoor work vehicle. Furthermore, the operating assembly 3 may also be provided with buttons for adjusting the brightness of the outdoor work vehicle's lights and the speed of the cutter.

[0056] In some embodiments, a vehicle-mounted hair dryer can also be provided at the front end of the frame 1 to blow away fallen leaves on the lawn, so as to reduce the inconvenience caused to outdoor work vehicles during operation. Furthermore, the operating component 3 is provided with buttons for controlling the direction and air volume of the vehicle-mounted hair dryer, so that the operator can control the vehicle-mounted hair dryer on the vehicle while performing driving operations without getting off the vehicle.

[0057] The seat 4 is set on the frame 1, and the left operating lever 31 and the right operating lever 32 are set close to the seat 4 and are respectively located on the left and right sides of the seat 4, so that the operator sitting on the seat 4 can operate the left operating lever 31 and the right operating lever 32 to control the operation of the outdoor work vehicle.

[0058] The power output assembly 5 is a tool for realizing the function of a tool. In one embodiment, the outdoor working vehicle is a riding lawn mower. The power output assembly 5 is a cutting assembly and is disposed below the vehicle frame 1. The power output assembly 5 is used to output power to realize the mowing function of the riding lawn mower.

[0059] In some embodiments, the cutting assembly includes a cutter disc, a mowing element, and a cutting motor. The cutting motor is controlled by a control button on the operating assembly 3 . The mowing element is used to cut grass and other vegetation at high speed. For example, the mowing element is a blade used to cut vegetation on a lawn. The cutter disc defines a mowing space for accommodating the mowing element, with the mowing element at least partially located within the mowing space.

[0060] The power output assembly 5 can also be removed from the outdoor work vehicle. It is understood that the power output assembly 5 can be replaced with other components to meet the needs of different gardening operations. Therefore, the outdoor garden mower can not only cut vegetation, but the cutting assembly can also be replaced with functional components such as snow shoveling, snow sweeping, snow blowing, and snow flushing. Those skilled in the art should be able to adaptably replace various functional components without inventive work, and all of the above should be included in the scope of protection of this embodiment.

[0061] When the cutting component is replaced with a functional component such as snow shoveling, snow sweeping or snow blowing, the power supply system 2 of the outdoor work vehicle of the present application can also supply power to the above-mentioned functional components such as snow shoveling, snow sweeping and snow blowing.

[0062] The travel assembly 6 includes travel wheels provided on the frame 1 and a travel motor for driving the travel wheels. The travel wheels are provided on both sides of the frame 1 so that the center of gravity of the outdoor work vehicle remains within the frame 1, thereby reducing the probability of the outdoor work vehicle rolling over while traveling.

[0063] In one embodiment, the number of running wheels is set to four, including two front running wheels 61 and two rear running wheels 62. The front running wheels 61 can be universal wheels, and a running motor is driven and connected to the rear running wheels 62 to drive the rear running wheels 62 to rotate. Both rear running wheels 62 are equipped with running motors, and the speeds of the two running motors can be the same or different. When the operator is driving the outdoor work vehicle straight, the speeds of the two running motors are approximately the same. When the operator is driving the outdoor work vehicle around, the speeds of the two running motors are different, and the outdoor work vehicle turns towards the side with the lower running motor speed. The diameter of the front running wheels 61 is smaller than that of the rear running wheels 62.

[0064] The power system 2 is disposed at the rear of the vehicle frame 1 and includes multiple battery packs 22, a power management device 23 (power management module) configured to provide unified and integrated control over the charging and discharging processes of the multiple battery packs, and a battery compartment 21 for mounting the multiple battery packs 22. The multiple battery packs 22 are electrically connected to external terminals 213 on the battery compartment 21 via their terminals to power the outdoor work vehicle. The multiple battery packs 22 include first-type battery packs 22 and second-type battery packs 22. Furthermore, the battery compartment 21 can be configured to accommodate first-type and second-type battery packs 22 of different capacities or sizes to increase the compatibility of the outdoor work vehicle with different types of battery packs 22. At least one of the battery packs 22 can be removed from the outdoor work vehicle to power other handheld power tools or energy storage devices, increasing the versatility of the battery packs 22. In some embodiments, the first-type battery pack comprises a ternary lithium battery pack, and the second-type battery pack comprises a lithium iron phosphate battery pack.

[0065] Compared with the traditional use of fossil fuels as an energy source, the outdoor work vehicle of this application is more environmentally friendly and more in line with long-term development plans.

[0066] Please also see Figure 2 、 Figure 3 、 Figure 6 、 Figure 8 and Figure 9 In some embodiments, the power supply system 2 includes a battery compartment 21, a battery pack 22, and a power management module. The battery pack 22 is assembled in the battery compartment 21. The power management module is disposed outside the battery compartment 21 and includes a housing body 231. The housing body 231 includes a first accommodating cavity 232 and a second accommodating cavity 233, which are isolated 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 to an external device. The connection portion extends to the second accommodating cavity 233. The second accommodating cavity 233 is configured as at least a wiring area. The wiring area is used to electrically connect and / or signal the connection portion located in the second accommodating cavity 233 to the external device.

[0067] By separating the first accommodating cavity 232 for accommodating the circuit board and the second accommodating cavity 233 for connecting to the circuit board, the staff only needs to perform relevant wiring or disconnecting operations in the second accommodating cavity 233 during wiring, and will not touch the circuit board, thereby providing good protection for the circuit board and the electrical components on the circuit board.

[0068] like Figures 6-11As shown, in some embodiments, two circuit boards are disposed within the first accommodating cavity 232, one of which is configured as a first circuit board 24 capable of supplying energy to the travel assembly 6 and / or the power output assembly 5, and the other is configured as a second circuit board 25 capable of outputting communication information. The connection portion on the first circuit board 24 is configured as a first connection portion 242, and the connection portion on the second circuit board 25 is configured as a second connection portion 252. The first connection portion 242 can extend from the first accommodating cavity 232 to the second accommodating cavity 233, and the second connection portion 252 can extend from the first accommodating cavity 232 to the second accommodating cavity 233. Thus, the first circuit board 24 and the second circuit board 25 are disposed in the first accommodating cavity 232, with the first connection portion 242 of the first circuit board 24 and the second connection portion 252 of the second circuit board 25 extending into the second accommodating cavity 233. This allows the first circuit board 24 and the second circuit board 25 to establish electrical and / or signal connections with external devices through their respective connection portions, while reducing direct physical contact between the first circuit board 24 and the second circuit board 25 and preventing them from being bumped.

[0069] like Figure 8 and Figure 9 As shown, in some embodiments, the housing body 231 is formed with a first stepped surface 2321 and a second stepped surface 2322 within the first accommodating cavity 232. The first stepped surface 2321 is provided with a first through-hole 23211, and the second stepped 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 are both connected to 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. The second connecting portion 252 passes through the second through hole 23221 and is partially located in the second accommodating cavity 233. In this way, the first connecting portion 242 and the second connecting portion 252 are extended to the second accommodating cavity 233 through different first step surfaces 2321 and second step surfaces 2322 respectively. This helps to independently connect the first connecting portion 242 and the second connecting portion 252, so that the wiring harness connection is regular.

[0070] In some embodiments, the first through hole 23211 and the second through hole 23221 are located above the second accommodating cavity 233. This prevents liquid or water droplets in the second accommodating cavity 233 from flowing into the first accommodating cavity 232, thereby preventing contamination of the first circuit board, the second circuit board, or other components in the first accommodating cavity 232.

[0071] like 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.

[0072] 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.

[0073] 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.

[0074] 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 .

[0075] like Figures 8 to 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.

[0076] like Figures 4 to 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.

[0077] 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.

[0078] like Figure 6As shown, in some embodiments, a first sealing member, specifically a sealing strip 2342, or other sealing device is provided between the first cover plate 234 and the housing body 231. Specifically, a sealing groove 2341 is provided around the first cover plate 234, and a sealing strip 2342 is provided within the sealing groove 2341. The sealing strip 2342 is partially exposed from the sealing groove 2341. When the first cover plate 234 is covered with the housing body 231, the housing body 231 presses against the sealing strip 2342 and is sealed and locked to the housing body 231 via screws.

[0079] In some embodiments, a second sealing member, specifically a sealing strip 2342, or other sealing device, is provided between the second cover plate 235 and the housing body 231. Furthermore, two second accommodating cavities 233 are provided, and correspondingly, two second cover plates 235 are provided, and two sealing strips 2342 are also provided to seal the gap between the second cover plate 235 and the housing body 231.

[0080] In some embodiments, two, three or more first accommodating cavities 232 may be provided, and one, three or more second accommodating cavities 233 may be provided.

[0081] Please also refer to 2. Figure 3 、 Figures 7 to 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; the power management device 23 includes a housing body 231, the housing body 231 includes a first accommodating cavity 232 and a second accommodating cavity 233, which are isolated from each other. The first accommodating cavity 232 is configured to accommodate at least one circuit board, and a connecting portion for connecting to an external device is provided on the circuit board. The connecting portion extends to the second accommodating cavity 233, and the second accommodating cavity 233 is configured as at least a wiring area, which is used to electrically connect and / or signal the connecting portion located in the second accommodating cavity 233 to the external device; the connecting portion is provided on the mounting surface of the circuit board, and the orientation of the mounting surface is different from the orientation of the opening of the battery compartment 21.

[0082] In some embodiments, the opening direction of the battery compartment 21 is upward, and the installation surface of the circuit board faces downward. In this way, when wiring or disconnecting wires on the entire vehicle of an outdoor work vehicle or repairing the circuit board in the power management device 23, the battery compartment 21 is released from the 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 position that is convenient for staff to access, thereby facilitating wiring or disconnecting wires at the connection part or disassembling the shell 230 to repair the circuit board.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] Please also refer to 2. Figure 3 、 Figures 7 to 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.

[0087] Please also refer to 2. Figure 3 、 Figures 7 to 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.

[0088] In some embodiments, when the opening direction of the battery compartment 21 is upward, the opening direction of the second accommodating cavity 233 of the power management device 23 can also be set horizontally or upward. Of course, the opening direction of the second accommodating cavity 233 can also be set tilted upward or tilted downward, or horizontally.

[0089] In some embodiments, the opening direction of the first accommodating cavity 232 is different from the opening direction of the battery compartment 21, that is, the opening direction of the first accommodating cavity 232 is also downward. 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 set upward, horizontally, or downward according to actual needs.

[0090] In some embodiments, the opening direction of the battery compartment 21 is upward, the opening direction of the first accommodating cavity 232 is upward, and the opening direction of the second accommodating cavity 233 is downward.

[0091] In some embodiments, the power management device 23 is mounted on an outdoor work vehicle, and the surface of the outdoor work vehicle that connects to the power management device 23 serves as the connection surface, with the opening of the second accommodating cavity 233 facing away from the connection surface. Furthermore, the power management device 23 can be mounted on the vehicle frame 1, the seat 4, or other feasible locations, with the surface of the outdoor work vehicle that connects to the power management device 23 serving as the connection surface, and the opening of the second accommodating cavity 233 facing away from the connection surface. This ensures that the connection surface does not interfere with assembly and disassembly of the wiring harness or assembly and disassembly of the housing 230 of the power management device 23 or assembly and disassembly of the wiring harness within the second accommodating cavity 233.

[0092] Please also refer to 2. Figure 3 、 Figures 6 to 10 and Figure 12In some embodiments, the power system 2 includes a battery compartment 21, a battery pack 22, and a power management device 23. The battery pack 22 is mounted 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 includes a housing body 231, which is configured to have a first accommodating cavity 232 and a second accommodating cavity 233, which are isolated 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 power to the travel component 6 and / or the power output component 5, and the second circuit board 25 is configured to transmit communication signals. The first circuit board 24 is provided with a first connecting portion 242, and the second circuit board 25 is provided with a second connecting portion 252. The first connecting portion 242 and the second connecting portion 252 can both extend from the first accommodating cavity 232 to the second accommodating cavity 233. The first connecting portion 242 and the second connecting portion 252 can respectively establish electrical and / or signal connections with external devices.

[0093] The housing body 231 has a first stepped surface 2321 and a second stepped surface 2322 of different heights formed within the first accommodating cavity 232. The first stepped surface 2321 is provided with a first through-hole 23211 connecting the first accommodating cavity 232 with the second accommodating cavity 233, and the second stepped surface 2322 is provided with a second through-hole 23221 connecting the first accommodating cavity 232 with the second accommodating cavity 233. The first connecting portion 242 can enter the second accommodating cavity 233 through the first through-hole 23211, and the second connecting portion 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 cavity are led out to the other cavity via the stepped surfaces of different heights. This ensures that when wiring the two circuit boards separately, the wiring harness on the first circuit board 24 does not interfere with the wiring harness on the second circuit board 25, resulting in neat and orderly wiring harnesses. Furthermore, when wiring harnesses are arranged on a single circuit board, they are not too crowded. In particular, the occurrence of overlapping wires between wiring harnesses on overcurrent circuit boards is reduced, which reduces the occurrence of short circuits and thus reduces the occurrence of safety hazards.

[0094] Moreover, the first circuit board is configured to provide electrical energy to the traveling component or the power output component, and the second circuit board is configured as a second circuit board capable of transmitting communication signals. Such a setting will reduce the impact of the magnetic field generated by overcurrent in the first circuit board on the transmission of communication signals on the second circuit board.

[0095] Furthermore, the height of the first stepped surface 2321 is higher than the height of the second stepped surface 2322. The height of the first circuit board 24 is similar to and slightly higher than the height of the first stepped surface 2321, and the height of the second circuit board 25 is similar to and slightly higher than the height of the second stepped surface 2322. The portion of the first circuit board 24 with multiple first terminals is arranged corresponding to the first stepped surface 2321, and the portion of the second circuit board 25 with multiple second terminals is arranged corresponding to the second stepped surface 2322. By separating the first and second circuit boards 24 and 25 into separate layers and arranging the first and second stepped surfaces 2321 and 2322 corresponding to their respective heights, the overall structure of the power management device 23 is more compact, while also reducing the length of the first and second terminals.

[0096] like Figure 9 As shown, in some embodiments, the wiring area of ​​the second accommodating cavity 233 includes a first wiring area 2331 and a second wiring area 2332, where the first wiring area 2331 is higher than the second wiring area 2332. The two wiring areas are arranged at different heights, which not only facilitates wiring harness connection but also reduces the possibility of short circuits caused by overlapping wires between the wires.

[0097] Please also see Figure 2 、 Figure 3 、 Figure 6 and Figure 12 In some embodiments, the power supply system 2 of the outdoor work vehicle of the present application 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 located in the housing 230. The circuit board assembly includes at least two stacked circuit boards, and each of the two stacked circuit boards is provided with a connecting portion. In the stacking direction, the orthographic projection surfaces of the two circuit boards have an overlapping area 259, and the connecting portion on at least one circuit board is at least partially located outside the overlapping area 259. Since the two circuit boards are stacked, placing the connecting portion of the circuit board at least partially outside the overlapping area 259 of the two circuit boards helps to reduce interference with the circuit board caused by the space limitations of the circuit board when the external wiring harness is connected to the circuit board, thereby improving wiring efficiency.

[0098] In some embodiments, in the stacking direction, the orthographic projection area of ​​one of the two circuit boards is larger than the orthographic projection area of ​​the other circuit board, and the connection portion on the larger circuit board is located outside the overlapping area 259 .

[0099] Please also see Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 and Figures 10 to 12 In some embodiments, one of the two circuit boards is configured as at least a first circuit board 24 capable of supplying power to the travel assembly 6 and / or the power output assembly 5, and the other is configured as at least a second circuit board 25 capable of outputting communication information. The connection portion on the first circuit board 24 is configured as a first connection portion 242 for connection to an external device, while the connection portion on the second circuit board 25 is configured as a second connection portion 252 for connection to an external device. 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 connection portion 242 on the first circuit board 24 is at least partially located outside the overlapping region 259.

[0100] like 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, and the first connection portion 242 on the first circuit board 24 may also be completely located outside the overlapping area 259.

[0101] Please also see Figures 10 to 12 In some embodiments, one of the two circuit boards is at least configured as a first circuit board 24 capable of supplying power to the travel assembly 6 and / or the power output assembly 5, and the other is at least configured as a second circuit board 25 capable of outputting communication information. The first circuit board 24 is provided with a first mounting surface 241 for mounting a first connecting portion 242, and the second circuit board 25 is provided with a second mounting surface 251 for mounting a second connecting portion 252. The first mounting surface 241 and the second mounting surface 251 are oriented in the same direction. When the first circuit board 24 and the second circuit board 25 are stacked and mounted, and the first mounting surface 241 and the second mounting surface 251 are oriented in the same direction, the first mounting surface 241 faces the non-mounting surface of the second circuit board 25. This causes the first connecting portion 242 on the first mounting surface 241 to be interfered with by the second circuit board 25 when connecting to external wiring. Therefore, by locating the first connecting portion 242 on the first mounting surface 241 outside the overlapping area 259, the first connecting portion 242 can be less interfered with by the second circuit board 25 when connecting to external wiring.

[0102] Please also see Figures 10 to 12In some embodiments, the first connection portion 242 is disposed on the first mounting surface 241 of the first circuit board 24. The first connection portion 242 includes a first terminal group 2421 and a second terminal group 2422 located in different areas. 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, with the first terminal group 2421 and the second terminal group 2422 located on either side of the overlapping area 259. Especially when the first mounting surface 241 and the second mounting surface 251 face the same direction, this arrangement allows the first terminal group 2421 and the second terminal group 2422 on the first circuit board 24 to connect to external devices without interference from the second circuit board 25.

[0103] Please also see Figure 2 、 Figure 3 、 Figures 10 to 12 Furthermore, in conjunction with the aforementioned embodiment, the battery compartment 21 includes a first side panel 211 and a second side panel 212 disposed opposite each other, each of which is provided with an external terminal 213. The battery pack 22 is located between the first side panel 211 and the second side panel 212, with the terminal at one end of the battery pack 22 connected to the external terminal 213 on the first side panel 211, and the terminal at the other end of the battery pack 22 connected to the terminal. In some embodiments, some terminals in the first terminal group 2421 of the second circuit board 25 are connected to the external terminal 213 on the first side panel 211, and some terminals in the second terminal group 2422 of the second circuit board 25 are connected to the external terminal 213 on the second side panel 212.

[0104] like Figure 7 As shown, in some embodiments, in the horizontal direction, the first terminal group 2421 is disposed close to the first side plate 211 , and the second terminal group 2422 is disposed close to the second side plate 212 .

[0105] like 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 are arranged one after the other in the forward direction of the outdoor work vehicle. The third terminal group 2521 and the fourth terminal group 2522 on the second circuit board 25 are arranged one after the other in the forward direction of the outdoor work vehicle.

[0106] like Figure 10As shown, in some embodiments, the first connection portion 242 is disposed on the first mounting surface 241 of the first circuit board 24. The first connection portion 242 includes a first terminal group 2421 and a second terminal group 2422 located in different areas. The first terminal group 2421 and the second terminal group 2422 are located on the same side of the overlapping area 259. Furthermore, the battery compartment 21 includes a first side panel 211 and a second side panel 212 disposed opposite each other, with the battery pack 22 located between the first side panel 211 and the second side panel 212. In the horizontal row direction, the first terminal group 2421 and the second terminal group 2422 can both be disposed near the first side panel 211 or the second side panel 212.

[0107] In some embodiments, the battery compartment 21 includes a first side panel 211 and a second side panel 212 disposed opposite each other, with the battery pack 22 located between the first side panel 211 and the second side panel 212. In the horizontal row, the third terminal group 2521 and the fourth terminal group 2522 on the second circuit board 25 can be disposed near the first side panel 211 or both near the second side panel 212.

[0108] In some embodiments, the power supply system 2 of the outdoor work 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 overheating of the output end during the charging and discharging process due to the setting of a single output end of the large-capacity battery pack 22, two output ends are set on the battery pack 22, respectively at the two ends of the battery pack 22, and the output end of each end is configured as a terminal for outputting electrical energy to the outside or charging the battery pack 22.

[0109] like Figure 2 、 Figure 3 and Figure 7 As shown, to facilitate electrical conduction between the two terminals of the battery pack 22, the battery compartment 21 of the present application includes a first side panel 211 and a second side panel 212, both of which are provided with external terminals 213. The battery pack 22 is located between the first side panel 211 and the second side panel 212, with the terminal at one end of the battery pack 22 connected to the external terminal 213 on the first side panel 211, and the terminal at the other end of the battery pack 22 connected to the terminal. The power management device 23 includes a housing 230 and at least one circuit board located within the housing 230, with a connecting portion provided on the circuit board. Horizontally, a portion of the connecting portion is located near the first side panel 211, and another portion is located near the second side panel 212. This facilitates electrical connection between the connecting portion of the power management device 23 and the respective external terminals 213, thereby facilitating the power management device 23's control over the charging and discharging of the battery pack 22.

[0110] Please also see Figure 1 、 Figure 6 、 Figure 7 、 Figure 10 、 Figure 11 and Figure 12 In some embodiments, two circuit boards are disposed within the housing 230. One of the circuit boards is configured as at least a first circuit board 24 capable of supplying power to the travel assembly 6 and / or the power output assembly 5, and the other is configured as at least a second circuit board 25 capable of outputting communication information. The connection portion on the first circuit board 24 is configured as a first connection portion 242. Horizontally, the first connection portion 242 includes a first terminal group 2421 disposed near the first side plate 211 and a second terminal group 2422 disposed near the second side plate 212. The connection portion on the second circuit board 25 is configured as a second connection portion 252. Horizontally, the second connection portion 252 includes a third terminal group 2521 disposed near the first side plate 211 and a fourth terminal group 2522 disposed near the second side plate 212. The first connecting portion 242 is divided into a first terminal group 2421 located near the first side panel 211 and a second terminal group 2422 located near the second side panel 212. This allows the first circuit board 24 to connect some of the terminals in its first terminal group 2421 to the external terminals 213 on the first side panel 211 via a wiring harness, and to connect some of the terminals in its second terminal group 2422 to the external terminals 213 on the second side panel 212 via a wiring harness. Simultaneously, the second circuit board 25 connects some of the terminals in its third terminal group 2521 to the external terminals 213 on the first side panel 211 via a wiring harness, and connects some of the terminals in its fourth terminal group 2522 to the external terminals 213 on the second side panel 212 via a wiring harness. This not only saves wiring harnesses but also makes the wiring harness layout more rational.

[0111] 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 power from the battery pack 22 and supply power to one of the power output assembly 5 and the travel assembly 6, or to supply power to both the power output assembly 5 and the travel assembly 6. The second circuit board 25 is configured to primarily receive and send information to control the first circuit board 24 to receive external power to charge the battery pack 22 or to control the battery pack 22 to discharge power.

[0112] Please also see Figures 2 to 5 、 Figure 7 and Figure 12In some embodiments, in the horizontal direction, a first interface group 2301 is provided on the housing 230 near the first side plate 211 to connect the interior and exterior of the housing 230, and a second interface group 2302 is provided on the housing 230 near the second side plate 212 to connect the interior and exterior of the housing 230. The first terminal group 2421 and the third terminal group 2521 are connected to external devices through the first interface group 2301, and the second terminal group 2422 and the fourth terminal group 2522 are connected to external devices through the second interface group 2302.

[0113] Please also see Figures 2 to 4 、 Figures 10 to 12 In some embodiments, the first interface group 2301 includes a first battery pack connection interface 23011. Some of the terminals in the first terminal group 2421 are configured as first battery pack power terminals 24211. The external terminals 213 on the first side plate 211 connected to the battery pack 22 are electrically connected to the first battery pack power terminals 24211 via the first battery pack connection interface 23011. Some of the terminals in the third terminal group 2521 are configured as first battery pack signal terminals 25211. The external terminals 213 on the first side plate 211 connected to the battery pack 22 are electrically signal-connected to the first battery pack signal terminals 25211 via the first battery pack connection interface 23011. This enables electrical connection between the power terminals on the battery pack 22 located near the first side plate 211 and the first circuit board 24, and also enables signal connection with the second circuit board 25.

[0114] Please also see Figures 2 to 4 、 Figures 10 to 12 In some embodiments, the second interface group 2302 includes a second battery pack connection interface 23021. Some terminals of the second terminal group 2422 are configured as second battery pack electrical terminals 24221. The external terminals 213 on the second side plate 212 connected to the battery pack 22 are electrically connected to the second battery pack electrical terminals 24221 via the second battery pack connection interface 23021. Some of the fourth terminal group 2522 are configured as second battery pack signal terminals 25221. The external terminals 213 on the second side plate 212 connected to the battery pack 22 are electrically signal-connected to the second battery pack signal terminals 25221 via the second battery pack connection interface 23021. This enables the external terminals 213 on the battery pack 22, located near the second side plate 212, to be electrically connected to the first circuit board 24 and to achieve signal connection with the second circuit board 25.

[0115] like Figure 10 -to Figure 12In some embodiments, a first electrical component 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 component includes a switch array 243 and a capacitor array 244. The switch array 243 may be an array composed of multiple MOS switches 2431, and the capacitor array 244 may be an array composed of multiple capacitors 2441. A second electrical component 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 component includes a processor 257 and other processing modules.

[0116] Please also see Figures 1 to 4 、 Figures 10 to 12 In some embodiments, a charging connector 2112 for connecting to an external charging gun is further provided on the first side panel 211. The first interface group 2301 includes a charging interface 23012. Some terminals in the first terminal group 2421 are configured as charging terminals 24212 that can be connected to the charging connector 2112. The charging connector 2112 can be connected to the charging terminal 24212 through a wiring harness passing through the charging interface 23012. The charging terminal 24212 is electrically connected to the first battery pack power terminal 24211 and the second battery pack power terminal 24221 on the first circuit board 24, respectively. The third terminal group 2521 includes a charge and discharge signal terminal 25213 that can be connected to the charging connector 2112. The charging connector 2112 can be connected to the charge and discharge signal terminal 25213 through a wiring harness passing through the charging interface 23012. The charging gun supplies power to the outdoor work vehicle through the charging connector 2112. The charging connector 2112 is connected to the charging terminal 24212. The charging terminal 24212 is electrically connected to the first battery pack power terminal 24211 and the second battery pack power terminal 24221 through the first circuit board 24, respectively. It can supply power to the battery pack 22 and transmit the charging information of the charging terminal 24212 to the battery pack 22 in real time through the charge and discharge signal terminal 25213.

[0117] Please also see Figures 2 to 4 、 Figures 10 to 14In some embodiments, the outdoor work vehicle further includes a controller that controls the operation of at least the travel assembly 6 and the power output assembly 5. The second interface group 2302 includes a power transmission interface 23022. The second terminal group 2422 includes power output terminals 24222 capable of outputting electrical energy. The power output terminals 24222 can be connected to the controller via a wiring harness through the power transmission interface 23022. The second interface group 2302 also includes a signal transmission interface 23023. The fourth terminal group 2522 is configured as a signal transmission terminal 25223 that is connected to the controller for signal signals. The signal transmission terminals 25223 can be connected to the controller for signal signals via a wiring harness through the signal transmission interface 23023. The battery pack 22 transmits electrical energy to the power output assembly 5 and / or travel assembly 6 of the outdoor work vehicle via the power output terminals 24222 on the first circuit board 24. The battery pack 22 monitors the power transmission status of the power output terminals 24222 in real time via the signal transmission terminals 25223, so that the second circuit board 25 can control the battery pack 22 to supply power to the travel assembly 6 and / or the power output assembly 5.

[0118] Please also see Figures 2 to 4 、 Figures 10 to 14 In some embodiments, the charging terminal 24212 includes a positive charging terminal 242121 and a negative charging terminal 242122. The power output terminal 24222 includes a positive output terminal 242221 and a negative output terminal 242222. A conductor 245 is connected between the negative charging terminal 242122 and the negative output terminal 242222. The second circuit board 25 is provided with a current sensor for detecting current. Furthermore, the current sensor includes a Hall ring 258. The Hall ring 258 has an inner hole. The conductor 245 at least partially extends into the inner hole of the Hall ring 258. Specifically, the conductor 245 is further provided with a conductive post 2451, which extends into the inner hole of the Hall ring 258. The Hall ring 258 can monitor the current flowing through the conductor 245 and transmit the current information to the second circuit board 25 and the controller, so that information can be exchanged with the battery pack 22 based on the current detected by the Hall ring 258.

[0119] Please also see Figures 2 to 4 、 Figures 10 to 14In some embodiments, a first cooling fan 2111 is provided on the first side panel 211 to dissipate heat for the battery pack 22, and a second cooling fan 2112 is provided on the second side panel 212 to dissipate heat for the battery pack 22. Some interfaces in the first interface group 2301 also include a first fan interface 23013 configured to connect to the first cooling fan 2111. The third terminal group 2521 includes a first fan terminal 25212 configured to electrically connect to the first cooling fan 2111. The second interface group 2302 also includes a second fan interface 23024 configured to connect to the second cooling fan 2112. The fourth terminal group 2522 includes a second fan terminal 25222 configured to electrically connect to the second cooling fan 2112. In some embodiments, multiple first cooling fans 2111 are provided on the first side panel 211, and multiple second cooling fans 2112 are provided on the first side panel 211.

[0120] Please also see Figures 2 to 4 、 Figures 10 to 14 In the present application, the first cooling fan 2111 and the second cooling 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 speed and forward and reverse rotation of the first cooling fan 2111 and the second cooling fan 2112, and then execute corresponding instructions according to the heat dissipation required by the battery pack 22. For example, when the heat generated by the battery pack 22 is not high, only part of the multiple first cooling fans 2111 and the multiple second cooling fans 2112 are used to dissipate heat for the battery pack 22; when the heat generated by the battery pack 22 is high, all the multiple first cooling fans 2111 and the multiple second cooling fans 2112 are started to dissipate heat for the battery pack 22.

[0121] Furthermore, the multiple first cooling fans 2111 and the multiple second cooling fans 2112 in the present application can blow air to the battery pack 22 at the same time, or exhaust air to the outside at the same time, so as to extract the heat inside the battery pack 22 to achieve the purpose of cooling the battery pack 22, or some of the multiple first cooling fans 2111 and the multiple second cooling fans 2112 can be rotated forward or partially reversed.

[0122] In some embodiments, a fan step-down module 2561 is also provided on the second circuit board 25. The second circuit board 25 is electrically connected to the first circuit board 24, and obtains electrical energy from the battery pack 22 through the first circuit board 24, and converts the high voltage of the battery pack 22 into the low voltage required for the operation of the first cooling fan 2111 and the second cooling fan 2112 through the fan step-down module 2561.

[0123] It should be understood that the first circuit board 24 in the present application can not only increase the power of the power output component 5 and / or the travel component 6, but also provide power to 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.

[0124] Please also see Figures 2 to 4 、 Figures 10 to 14 In some embodiments, the battery compartment 21 is connected to a parking sensor 214 and a radar controller 215 electrically connected to the parking sensor 214. The housing 230 is also provided with an expansion port 23014. The second circuit board 25 is also provided with a radar terminal 253, which can be connected to the radar controller 215 via a wiring harness through the expansion port 23014. The radar controller 215 is also connected to the radar via a wiring harness. The second circuit board 25 is also provided with a radar step-down module 254. The second circuit board 25 is electrically connected to the first circuit board 24, receiving power from the battery pack 22 via the first circuit board 24. The radar step-down module 254 converts the high voltage of the battery pack 22 into the low voltage required for the radar controller 215 and the radar to operate. The radar controller 215 receives information transmitted by the radar and transmits it to the first circuit board 24 after processing. Specifically, the parking sensor 214 is used to detect obstacles while the vehicle is driving or reversing to avoid collisions. The reversing radar is electrically and communicatively connected to the second circuit board. The second circuit board is further configured to issue a warning prompt when it is determined that there is an obstacle within a certain distance range based on the detection result of the reversing radar.

[0125] Please also see Figures 2 to 4 、 Figures 10 to 14 In some embodiments, a taillight 216 is connected to the battery compartment 21, an expansion port 23014 is provided on the housing 230, and taillight 216 terminals are provided on the second circuit board 25. These terminals can be connected to the taillight 216 via a wiring harness passing through the expansion port 23014. A taillight 216 step-down module is also provided on the second circuit board 25. The second circuit board 25 is electrically connected to the first circuit board 24, receiving power from the battery pack 22 through the first circuit board 24. The taillight 216 step-down module converts the high voltage of the battery pack 22 into the low voltage required for operating the taillight 216. The second circuit board 25 is also configured to control the lighting mode of the taillight 216.

[0126] Please also see Figures 2 to 4 、 Figures 10 to 14In some embodiments, a compartment cover is provided at the opening of the battery compartment 21, and a monitoring switch 28 capable of monitoring the opening and closing status of the compartment cover is provided on the compartment cover. An expansion interface 23014 is provided on the housing 230. The circuit board is configured as at least a second circuit board 25 capable of outputting communication information, and a switch terminal 256 is provided on the second circuit board 25. The monitoring switch 28 can be connected to the switch terminal 256 through a wiring harness passing through the expansion interface 23014. When charging an outdoor work vehicle, since high-voltage charging is mostly used as the charging method, when the operator opens the compartment cover, the monitoring switch 28 on the compartment cover detects that the compartment cover is in the open state, and will transmit 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 and reduce the charging current and voltage to prevent harm to the operator.

[0127] The layered arrangement of the first circuit board 24 and the second circuit board 25 in this application also allows for the installation of a larger number of external connection interfaces on the first circuit board 24 and the second circuit board 25 within a limited space. This allows for the addition of functional modules to the first circuit board 24 and the second circuit board 25 as needed, and enables external information exchange or power transmission through the added interfaces, thereby enriching the functionality of the power management device 23. As mentioned above, the second circuit board 25 is equipped with a taillight buck module, a radar buck module, a cooling fan buck module, and the like.

[0128] In some embodiments, in the horizontal direction, the power management device 23 is arranged between the first side panel 211 and the second side panel 212, so that the power management device 23 can be electrically and signal-connected to the external terminals 213, the first cooling fan 2111, and the second cooling fan 2112 on the first side panel 211 and the second side panel 212 in a relatively balanced manner in the horizontal direction.

[0129] Please also see Figures 1 to 4 、 Figures 10 to 14In some embodiments, the power system 2 for an outdoor work vehicle of the present application is configured to at least power the outdoor work vehicle. The power system 2 includes a battery compartment 21, a battery pack 22, and a power management device 23. The battery pack 22 is mounted within the battery compartment 21 and can discharge power to outdoor work equipment and obtain external power for charging itself. 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 includes a housing 230 and at least one circuit board within the housing 230. The circuit board is provided with independently arranged charging terminals 24212 and power output terminals 24222. The charging terminals 24212 are configured to obtain power transmitted by the charging connector 2112 and charge the battery pack 22. The power output terminals 24222 are configured to receive power from the battery pack 22 and discharge it to a controller. The present application provides separate terminals for obtaining external power and for outputting power on the circuit board, which allows for a dispersed wiring layout and avoids the congestion of wiring and the inconvenience of external wiring.

[0130] Please also see Figures 2 to 4 、 Figures 10 to 14 In some embodiments, two circuit boards are provided in the housing 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 configured to at least install a charging terminal 24212 and an electric energy output terminal 24222. The second circuit board 25 is configured to at least 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 via 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 via the electric energy output terminal 24222. The first circuit board 24 is controlled by the second circuit board 25. The second circuit board 25 charges the battery pack 22 by controlling the charging terminal 24212 on the first circuit board 24, and the second circuit board 25 supplies power to the controller by controlling the electric energy output terminal 24222 on the first circuit board 24.

[0131] like Figures 10 to 12 As shown, in some embodiments, the first circuit board 24 and the second circuit board 25 are stacked. In the stacking direction, the projected surface of the first circuit board 24 and the projected surface of the second circuit board 25 have an overlapping area 259, and the charging terminals 24212 and the power output terminals 24222 are located outside the overlapping area 259. Positioning the charging terminals 24212 and the power output terminals 24222 outside the overlapping area 259 can reduce interference from the second circuit board 25 with the charging terminals 24212 and the power output terminals 24222 when connecting the wiring harness. Furthermore, when connecting and disconnecting the wiring harness, operators can quickly plug and unplug the connector extending into the second accommodating cavity, improving assembly efficiency on the production line.

[0132] like Figure 13 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 compactly, the conductor 245 is arranged across the second circuit board 25 to save space.

[0133] like Figures 10 to 14 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.

[0134] like Figures 10 to 14 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 equipment 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.

[0135] Please also see Figures 1 to 3In some embodiments, the outdoor work vehicle of the present application 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 assembled in the battery compartment 21 along the opening, and the battery pack 22 can supply power to the outdoor work vehicle. The power management device 23 is at least configured to 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 includes a shell 230 having a chamber and at least one circuit board located in the chamber. The portion of the shell 230 in contact with the air flow channel 27 is a heat dissipation portion, and the circuit board is at least partially arranged in contact with the heat dissipation portion. Such a setting can exchange the heat generated by the power management device 23 during operation with the external air to achieve the purpose of dissipating heat from the power management device 23.

[0136] See also Figure 8 As shown, in some embodiments, the chamber of the housing 230 may be the first accommodating chamber 232 in the aforementioned embodiment.

[0137] like Figures 10 to 12 As shown, in some embodiments, two circuit boards are provided in the chamber, one of which is at least configured as a first circuit board 24 capable of delivering high-power current, and the other is at least configured as a second circuit board 25 capable of outputting communication information, and the first circuit board 24 is provided in contact with the heat dissipation portion. The first circuit board 24 capable of delivering high-power current in the present application is equivalent to the aforementioned first circuit board 24 capable of supplying power to the walking component 6 and / or the power output component 5. As can be seen from the above, the first circuit board 24 is equipped with a MOS switch 2431 and a capacitor 2441, so it will generate more heat. Placing the first circuit board 24 close to the first shell 230 is beneficial to the heat dissipation of the circuit board.

[0138] like Figure 7 and Figures 10 to 12 As shown, in some embodiments, a circuit board assembly on an outdoor work vehicle includes a first circuit board 24 and a second circuit board 25 arranged in layers, one above the other. The first circuit board 24 is positioned in contact with the heat sink. Specifically, the first circuit board 24 is capable of transmitting high-power current, while the second circuit board 25 is capable of transmitting control instructions to control the operation of the first circuit board 24. Because the first circuit board 24 generates a large amount of heat, one purpose of designing it separately from the second circuit board 25 is to ensure that the high heat generated by the first circuit board 24 does not affect the operation of the second circuit board 25, but rather exchanges heat with the outside world through the heat sink.

[0139] like Figure 2 and Figure 3In some embodiments, the power management device 23 is connected to the bottom of the battery compartment 21 via a bracket 26. An airflow channel 27 is formed between the bottom of the battery compartment 21 and the power management device 23. When the outdoor work vehicle is in motion, air flows through the bottom of the battery compartment 21 and removes heat generated by the power management device 23. Furthermore, the air in the airflow channel 27 is compressed. Once discharged from the airflow channel 27, the compressed air instantly expands and absorbs heat, further cooling the heat dissipation unit.

[0140] In some embodiments, the outdoor work vehicle of the present application 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 assembled in the battery compartment 21 along the opening, and the battery pack 22 can supply power to the outdoor work vehicle; the power management device 23 is at least configured to 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 includes a shell 230 having a chamber and at least one circuit board located in the chamber, the part of the shell 230 that contacts the air flow channel 27 is a heat dissipation part, and the circuit board is arranged close to the heat dissipation part.

[0141] As mentioned above, the circuit board is arranged close to the air flow channel 27 . This way, the heat dissipation effect of the circuit board is better than that of the circuit board being arranged far away from the air flow channel 27 .

[0142] In some embodiments, two circuit boards are disposed within the chamber of the power management device 23 of an outdoor work vehicle. One of the circuit boards is configured as a first circuit board 24 capable of delivering high-power current, and the other is configured as a second circuit board 25 capable of outputting communication information. The first circuit board 24 is positioned adjacent to the heat dissipation portion. Positioning the first circuit board 24 adjacent to the first housing 230 facilitates heat dissipation from the first circuit board 24, which generates relatively high amounts of heat.

[0143] like Figure 6 As shown, in some embodiments, the heat dissipation portion is a first cover plate 234 at the first accommodating cavity 232. Furthermore, the first cover plate 234 is made of metal material.

[0144] like Figure 2 、 Figure 3 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.

[0145] like Figures 10 to 12 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.

[0146] like Figure 6 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.

[0147] 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.

[0148] 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.

[0149] 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.

[0150] The present application is not limited to the above specific embodiments. A person skilled in the art can easily understand that there are many alternatives to 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 shall be based on the content of the claims.

Claims

1. An outdoor work vehicle, characterized in that: include: a battery compartment having an opening; a battery pack configured to be assembled in the battery compartment along the opening, the battery pack being capable of supplying power to the outdoor work vehicle; a power management device, configured at least to control the charging and discharging of the battery pack, an airflow channel being formed between the power management device and the battery compartment; The power management device includes a shell having a chamber and at least one circuit board located in the chamber. The portion of the shell in contact with the air flow channel is a heat dissipation portion, and the circuit board is at least partially arranged in contact with the heat dissipation portion.

2. The outdoor work vehicle according to claim 1, characterized in that: Two circuit boards are provided in the chamber, one of which is at least configured as a first circuit board capable of transmitting high-power current, and the other is at least configured as a second circuit board capable of outputting communication information, and the first circuit board is arranged in contact with the heat dissipation portion.

3. The outdoor work vehicle according to claim 1, characterized in that: The power management device is connected to the bottom of the battery compartment through a bracket.

4. The outdoor work vehicle according to claim 1, characterized in that: The battery compartment includes a first side plate and a second side plate arranged opposite to each other, the battery pack is located between the first side plate and the second side plate, and the first side plate and the second side plate are both provided with external terminals for connecting to the battery pack; In the horizontal direction, the power management device is disposed between the first side plate and the second side plate, and the power management device can be connected to the external terminals on the first side plate and the second side plate respectively.

5. The outdoor work vehicle according to claim 4, characterized in that: In the horizontal direction, a first connection interface is provided on the shell near the first side plate, and a second connection interface is provided on the shell near the second side plate; The external terminals on the first side panel can be electrically connected and / or signal-connected to the circuit board assembly through the first connection interface, and the external terminals on the second side panel can be electrically connected and / or signal-connected to the circuit board assembly through the second connection interface.

6. The outdoor work vehicle according to claim 5, characterized in that: Two circuit boards are disposed in the chamber, one of which is at least configured as a first circuit board capable of transmitting high-power current, and the other is at least configured as a second circuit board capable of outputting communication information, the first circuit board includes a first connecting portion, and the second circuit board includes a second connecting portion; The external connection terminals on the first side plate are respectively connectable to the first connection portion and the second connection portion; The external connection terminals on the second side plate can be connected to the first connection portion and the second connection portion respectively.

7. The outdoor work vehicle according to claim 6, characterized in that: In the horizontal direction, the first connecting portion includes a first terminal group arranged near the first side plate and a second terminal group arranged near the second side plate, the first terminal group is connected to the external terminal on the first side plate, and the second terminal group is connected to the external terminal on the first side plate; The second connection portion includes a third terminal group arranged near the first side plate and a fourth terminal group arranged near the second side plate, the third terminal group is connected to the external terminal on the first side plate, and the fourth terminal group is connected to the external terminal on the second side plate.

8. An outdoor work vehicle, characterized in that: include: a battery compartment having an opening; a battery pack configured to be assembled in the battery compartment along the opening, the battery pack being capable of supplying power to the outdoor work vehicle; a power management device configured to control the charging or discharging of the battery pack, wherein an air flow channel is formed between the power management device and the battery compartment; The power management device includes a shell having a chamber and at least one circuit board located in the chamber. The portion of the shell in contact with the air flow channel is a heat dissipation portion, and the circuit board is arranged close to the heat dissipation portion.

9. The outdoor work vehicle according to claim 8, characterized in that: On the outdoor work vehicle, two circuit boards are arranged in the chamber, one of which is at least configured as a first circuit board capable of transmitting high-power current, and the other is at least configured as a second circuit board capable of outputting communication information, and the first circuit board is arranged close to the heat dissipation part.

10. The outdoor work vehicle according to claim 8, characterized in that: The power management device is connected to the bottom of the battery compartment through a bracket.

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