Outdoor operation vehicle, riding lawn mower, and power management apparatus having heat dissipation function

Abstract

An outdoor operation vehicle, a riding lawn mower, and a power management apparatus having a heat dissipation function. The outdoor operation vehicle comprises: a traveling assembly configured to support the outdoor operation vehicle in traveling; a power output assembly configured to perform outdoor operations; and a power supply system at least configured to supply power to the outdoor operation vehicle. The power supply system comprises: a battery compartment; battery packs assembled within the battery compartment; and a power management apparatus (23), the power management apparatus (23) comprising a housing body (231), the housing body (231) comprising a first accommodating cavity (232) and second accommodating cavities (233) which are isolated from each other, the first accommodating cavity (232) being configured to accommodate at least one circuit board, the circuit board being provided with a connecting portion configured to be connected to an external device, and the connecting portion extending into a second accommodating cavity (233) and being capable of making an electrical connection and / or a signal connection to the external device within the second accommodating cavity (233).

Description

Outdoor work vehicles, ride-on lawnmowers, and power management devices with cooling functions

[0001] This application claims priority to the following patent applications:

[0002] A Chinese patent application, filed on November 29, 2024, with application number 202411737074.3 and patent title "Outdoor Work Vehicle", was submitted to the Chinese Patent Office.

[0003] A Chinese patent application, filed on November 29, 2024, with application number 202422933885.2 and patent title "Outdoor Work Vehicle";

[0004] A Chinese patent application, filed on November 29, 2024, with application number 202422933890.3 and patent title "Outdoor Work Vehicle";

[0005] A Chinese patent application, filed on November 29, 2024, with application number 202422933893.7 and patent title "Outdoor Work Vehicle";

[0006] A Chinese patent application, filed on November 29, 2024, with application number 202422933895.6 and patent title "Outdoor Work Vehicle";

[0007] A Chinese patent application, filed on November 29, 2024, with application number 202422933899.4 and patent title "Outdoor Work Vehicle";

[0008] A Chinese patent application was filed with the Chinese Patent Office on November 29, 2024, with application number 202422933905.6 and patent title "Power Management Device with Heat Dissipation Function and Outdoor Operation Vehicle".

[0009] The entire contents of the aforementioned patent application are incorporated herein by reference. [Technical Field]

[0010] This application relates to the field of work equipment technology, and in particular to an outdoor work vehicle and a ride-on lawnmower. [Background Technology]

[0011] With the development of battery technology, electric drive is gradually replacing engine drive in outdoor work vehicles. A battery pack typically contains one or more battery cells and can serve as a power source for outdoor work vehicles or as a power source for portable power tools. A power management device, which manages the charging and discharging of the battery pack, is an essential component of electrically driven outdoor work vehicles.

[0012] The power management device includes a housing and a circuit board installed inside the housing. The circuit board has multiple terminals for wiring harness connections to the outside world. In the prior art, when the power management device needs to be removed from the vehicle, the housing must be opened and the wiring harness connections disconnected. Opening the housing exposes the circuit board to the external environment, making it susceptible to contamination. Moreover, the circuit board is easily damaged by impacts during the opening and closing of the housing and the removal and installation of the wiring harness, causing the power management device to malfunction.

[0013] Furthermore, the connection between the circuit board and the externally introduced wiring harness is located in the same space. When the wiring harness is led from a high position to a lower position in the power management device, the liquid on the wiring harness can easily be introduced into the housing, causing contamination or short circuit of the circuit board, affecting its service life, or even causing damage.

[0014] Therefore, it is indeed necessary to provide an improved outdoor work vehicle to overcome the shortcomings of the prior art. [Summary of the Invention]

[0015] In view of the shortcomings of the prior art, one of the objectives of this application is to provide an outdoor work vehicle that can effectively protect circuit boards.

[0016] Firstly, the technical solution adopted by this application to solve the problems of the prior art is as follows: an outdoor work vehicle, comprising: a walking component configured to support the walking of the outdoor work vehicle; a power output component configured to perform outdoor work; a power system configured to at least power the outdoor work vehicle, the power system comprising: a battery compartment; multiple battery packs assembled in the battery compartment, the multiple battery packs including at least one of a first type battery pack and a second type battery pack, and at least one of the multiple battery packs being detachably installed in the outdoor work vehicle and, after being detached, being used to power a handheld power tool; and a power management module configured to at least uniformly integrate and control the charging and discharging process of the multiple battery packs in the power system, the power management module comprising a housing body, the housing body comprising a first accommodating cavity and a second accommodating cavity isolated from each other, the first accommodating cavity being configured to accommodate at least one circuit board, the circuit board being provided with a connection portion for connecting to an external device, the connection portion extending to the second accommodating cavity and being able to make electrical and / or signal connections with an external device within the second accommodating cavity.

[0017] In some embodiments, two circuit boards are disposed within the first receiving cavity, one of which is configured to supply power to the walking component and / or the power output component, and the other is configured to output communication information. The connecting portion is configured as a first connecting portion on the first circuit board and as a second connecting portion on the second circuit board. The first connecting portion can extend from the first receiving cavity to the second receiving cavity. The second connecting portion can extend from the first receiving cavity to the second receiving cavity.

[0018] In some embodiments, the outer shell body has a first stepped surface and a second stepped surface formed in the first receiving cavity, the first stepped surface is provided with a first through hole, and the second stepped surface is provided with a second through hole; the first connecting portion can extend from the first receiving cavity to the second receiving cavity through the first through hole; the second connecting portion can extend from the first receiving cavity to the second receiving cavity through the second through hole.

[0019] In some embodiments, the first step surface and the second step surface have different heights; the first circuit board and the second circuit board are arranged in an upper and lower layer, the portion of the first circuit board having a first connecting portion is arranged corresponding to the first step surface; the portion of the second circuit board having a second connecting portion is arranged corresponding to the second step surface.

[0020] In some embodiments, the second receiving cavity includes at least a wiring area, the wiring area including a first wiring area and a second wiring area with different heights; the first connecting part can enter the first wiring area through the first stepped surface and a first through hole; the second connecting part can enter the second wiring area through the second stepped surface and a second through hole.

[0021] In some embodiments, on the outdoor work vehicle, the height of the first circuit board is higher than the height of the second circuit board, and the height of the first wiring area is higher than the height of the second wiring area.

[0022] In some embodiments, there are two second receiving cavities and one first receiving cavity, with the two second receiving cavities respectively located on both sides of the first receiving cavity.

[0023] In some embodiments, a first cover plate is provided at the opening of the first receiving cavity, and a second cover plate is provided at the opening of the second receiving cavity.

[0024] This application also provides an outdoor work vehicle, including: a walking assembly configured to support the outdoor work vehicle's movement; a power output assembly configured to perform outdoor work; a power system configured to at least power the outdoor work vehicle, the power system including: a battery compartment having an opening; a battery pack configured to be detachably mounted within the battery compartment along the opening; and a power management device including a housing body, the housing body including a first receiving cavity and a second receiving cavity separated from each other, the first receiving cavity being configured to accommodate at least one circuit board, the circuit board having a connection portion for connecting to an external device, the connection portion extending into the second receiving cavity, and the second receiving cavity being at least configured as a wiring area for electrically and / or signally connecting the connection portion located within the second receiving cavity to an external device; the connection portion being disposed on a mounting surface of the circuit board, the orientation of the mounting surface being different from the orientation of the opening of the battery compartment.

[0025] In some embodiments, the mounting surface is oriented opposite to the opening of the battery compartment.

[0026] In some embodiments, the power management device is disposed below the battery compartment, the opening of the battery compartment is upward, and the mounting surface is downward.

[0027] In some embodiments, on the outdoor work vehicle, the opening direction of the battery compartment is upward, and the opening direction of the second receiving cavity is different from the opening direction of the battery compartment.

[0028] In some embodiments, the power management device is disposed below the battery compartment, the opening of the battery compartment is upward, and the opening of the second receiving cavity is downward.

[0029] In some embodiments, the opening direction of the first receiving cavity is the same as the opening direction of the battery compartment.

[0030] In some embodiments, the power management device is connected to the outdoor work vehicle, and the surface on the outdoor work vehicle that is connected to the power management device is the connection surface, and the opening direction of the second receiving cavity is opposite to the connection surface.

[0031] In some embodiments, the extension direction of the connector is different from the opening direction of the battery compartment.

[0032] In some embodiments, the power management device is disposed below the battery compartment, the opening of the battery compartment is upward, and the opening of the second receiving cavity is downward.

[0033] This application also provides a rideable lawnmower, comprising: a walking assembly configured to support the outdoor work vehicle for walking; a power output assembly configured to perform outdoor work; and a power system configured to at least power the outdoor work vehicle, the power system comprising: a battery compartment; a battery pack assembled within the battery compartment; and a power management device configured to at least control the charging and discharging of the battery pack; the power management device comprising a housing body configured as a first receiving cavity and a second receiving cavity separated from each other, the first receiving cavity being configured to house a first circuit board and a second circuit board, the first circuit board being used to provide electrical energy to the walking assembly and / or the power output assembly, and the second circuit board being configured to transmit communication signals; the first circuit board... A first connecting portion is provided on the circuit board, and a second connecting portion is provided on the second circuit board. Both the first connecting portion and the second connecting portion can extend from the first receiving cavity to the second receiving cavity. The first connecting portion and the second connecting portion can respectively make electrical connections and / or signal connections with external devices. The outer shell body forms a first step surface and a second step surface with different heights in the first receiving cavity. A first through hole is provided on the first step surface to connect the first receiving cavity and the second receiving cavity, and a second through hole is provided on the second step surface to connect the first receiving cavity and the second receiving cavity. The first connecting portion can enter the second receiving cavity through the first through hole, and the second connecting portion can enter the second receiving cavity through the second through hole.

[0034] In some embodiments, the second receiving cavity includes at least a wiring area, the wiring area including a first wiring area and a second wiring area, the first connecting portion extending to the first wiring area and the second connecting portion extending to the second wiring area.

[0035] In some embodiments, the height of the first wiring area is higher than the height of the second wiring area.

[0036] Compared with the prior art, this application has the following beneficial effects:

[0037] In this application, by separating the first receiving cavity for accommodating the circuit board and the second receiving cavity for wiring to the circuit board, operators can perform wiring or disconnection operations only in the second receiving cavity without touching the circuit board, thus providing excellent protection for the circuit board and its electrical components. Furthermore, when connecting or disconnecting wire harnesses, operators can quickly plug and unplug the connectors extending into the second receiving cavity, improving assembly efficiency on the production line.

[0038] In this application, the power management device is located at the bottom of the battery compartment, and the mounting surface of the circuit board is oriented differently from the opening direction of the battery compartment. This allows the power management device to be rotated synchronously when wiring, disconnecting, or repairing the circuit board inside the power management device on the vehicle, by simply detaching the battery compartment from the frame and flipping the battery compartment. This allows the power management device to be rotated from the bottom of the battery compartment to an angle and position that is easy for workers to access, thereby facilitating wiring, disconnecting, or disassembling the casing for circuit board repair.

[0039] In this application, the outer casing body forms two stepped surfaces of different heights, a first step and a second step, within the first receiving cavity. A first connecting portion on the first circuit board passes through the first stepped surface and enters the second receiving cavity, and a second connecting portion on the second circuit board passes through the second stepped surface and enters the second receiving cavity. This allows terminals on the two circuit boards within one cavity to be led out to the other cavity via stepped surfaces of different heights. This ensures that when wiring to the two circuit boards is done separately, the wiring harness on the first circuit board will not interfere with the wiring harness on the second circuit board, resulting in neat and orderly wiring connections. Furthermore, it prevents overcrowding when arranging wiring harnesses on a single circuit board. In particular, it reduces the likelihood of wires bridging between wiring harnesses on circuit boards subject to overcurrent, decreasing the occurrence of short circuits and thus reducing safety hazards.

[0040] Furthermore, configuring the first circuit board to provide power to the walking assembly or power output assembly, and configuring the second circuit board to transmit communication signals, will reduce the impact of the magnetic field generated by the first circuit board when it experiences overcurrent on the transmission of communication signals on the second circuit board.

[0041] In this application, the layered arrangement of the first circuit board and the second circuit board allows for the installation of more external wiring interfaces on the first and second circuit boards within a limited space. This enables the addition of functional modules on the first and second circuit boards as needed, and the addition of interfaces enables external information interaction or power transmission, thereby enriching the functionality of the power management device.

[0042] In this application, the first receiving cavity for accommodating the circuit board and the second receiving cavity for wiring are combined, especially in outdoor operations, to prevent water droplets or other liquids from entering the first receiving cavity from the second receiving cavity along the connected wire harness.

[0043] With the development of battery technology, electric drive is gradually replacing engine drive in outdoor work vehicles. A battery pack typically contains one or more battery cells and can serve as a power source for outdoor work vehicles or as a power source for portable power tools. A power management device, which manages the charging and discharging of the battery pack, is an essential component of electrically driven outdoor work vehicles.

[0044] The power management device includes a housing and a circuit board installed inside the housing. The circuit board has multiple terminals for wiring harness connections to the outside. When the power management device needs to be removed from the vehicle, the housing must be opened to disconnect the wiring harness. Opening the housing exposes the circuit board to the external environment, making it susceptible to contamination. Moreover, the process of opening and closing the housing and removing and installing the wiring harness can easily cause impact damage to the circuit board, leading to the failure of the power management device.

[0045] Furthermore, the connection between the circuit board and the externally introduced wiring harness is located in the same space. When the wiring harness is led from a high position to a lower position in the power management device, the liquid on the wiring harness can easily be introduced into the housing, causing contamination or short circuit of the circuit board, affecting its service life, or even causing damage.

[0046] Based on this, in a second aspect, the technical solution adopted by this application to solve the prior art problem is: an outdoor work equipment, comprising: a walking component configured to support the outdoor work equipment in walking; a power output component configured to perform outdoor work; and a power system configured at least to supply power to the outdoor work equipment, the power system comprising a battery compartment, a battery pack assembled in the battery compartment, and a power management device disposed outside the battery compartment, the power management device being at least used to control the charging or discharging of the battery pack; the power management device comprising a housing body, the housing body forming a plurality of mutually isolated receiving cavities.

[0047] In some embodiments, the plurality of receiving cavities include a first receiving cavity and a second receiving cavity that are isolated from each other. The first receiving cavity is configured to receive at least one circuit board. The circuit board has a connection portion for connection to the outside. The housing body has a connecting portion that connects the first receiving cavity and the second receiving cavity. The connection portion extends from the connecting portion to the second receiving cavity. The second receiving cavity is configured as a wiring area for electrical and / or signal connection of the circuit board assembly extending into the second receiving cavity with external devices.

[0048] In some embodiments, the first receiving cavity is configured to receive a first circuit board and a second circuit board, the first circuit board being configured to provide electrical power to the walking assembly and / or the power output assembly, and the second circuit board being configured to transmit communication signals. The first circuit board includes a first connecting portion, and the second circuit board includes a second connecting portion. The connecting portion includes a first through hole and a second through hole, and the wiring area includes a first wiring area and a second wiring area. The first connecting portion can extend from the first receiving cavity through the first through hole to the first wiring area, and the second connecting portion can extend from the first receiving cavity through the second through hole to the second wiring area.

[0049] In some embodiments, the first wiring area and the second wiring area are at different heights on the outdoor work equipment.

[0050] In some embodiments, the first receiving cavity is formed with a first stepped surface and a second stepped surface of different heights, the first connecting portion is disposed corresponding to the first stepped surface, and the second connecting portion is disposed corresponding to the second stepped surface.

[0051] In some embodiments, one end of the first through hole is located in the first wiring area and the other end is located in the first stepped surface; one end of the second through hole is located in the second wiring area and the other end is located in the second stepped surface.

[0052] In some embodiments, the outer shell body forms a first receiving cavity and a second receiving cavity that are isolated from each other. There are two second receiving cavities and one first receiving cavity. One of the two second receiving cavities is located on one side of the first receiving cavity, and the other is located on the other side of the first receiving cavity.

[0053] In some embodiments, a first cover plate is disposed at the opening of the first receiving cavity, and a second cover plate is disposed at the opening of the second receiving cavity.

[0054] In some embodiments, a first seal is provided between the first cover plate and the outer casing body.

[0055] In some embodiments, a second seal is provided between the second cover plate and the housing body.

[0056] Compared with the prior art, this application has the following beneficial effects:

[0057] In this application, by separating the first receiving cavity for accommodating the circuit board and the second receiving cavity for wiring to the circuit board, operators can perform wiring or disconnection operations only in the second receiving cavity without touching the circuit board, thus providing excellent protection for the circuit board and its electrical components. Furthermore, when connecting or disconnecting wire harnesses, operators can quickly plug and unplug the connectors extending into the second receiving cavity, improving assembly efficiency on the production line.

[0058] In this application, the power management device is located at the bottom of the battery compartment, and the mounting surface of the circuit board is oriented differently from the opening direction of the battery compartment. This allows the power management device to be rotated synchronously when wiring, disconnecting, or repairing the circuit board inside the power management device on the vehicle, by simply detaching the battery compartment from the frame and flipping the battery compartment. This allows the power management device to be rotated from the bottom of the battery compartment to an angle and position that is easy for workers to access, thereby facilitating wiring, disconnecting, or disassembling the casing for circuit board repair.

[0059] In this application, the outer casing body forms two stepped surfaces of different heights, a first step and a second step, within the first receiving cavity. A first connecting portion on the first circuit board passes through the first stepped surface and enters the second receiving cavity, and a second connecting portion on the second circuit board passes through the second stepped surface and enters the second receiving cavity. This allows terminals on the two circuit boards within one cavity to be led out to the other cavity via stepped surfaces of different heights. This ensures that when wiring to the two circuit boards is done separately, the wiring harness on the first circuit board will not interfere with the wiring harness on the second circuit board, resulting in neat and orderly wiring connections. Furthermore, it prevents overcrowding when arranging wiring harnesses on a single circuit board. In particular, it reduces the likelihood of wires bridging between wiring harnesses on circuit boards subject to overcurrent, decreasing the occurrence of short circuits and thus reducing safety hazards.

[0060] Furthermore, configuring the first circuit board to provide power to the walking assembly or power output assembly, and configuring the second circuit board to transmit communication signals, will reduce the impact of the magnetic field generated by the first circuit board when it experiences overcurrent on the transmission of communication signals on the second circuit board.

[0061] In this application, the layered arrangement of the first circuit board and the second circuit board allows for the installation of more external wiring interfaces on the first and second circuit boards within a limited space. This enables the addition of functional modules on the first and second circuit boards as needed, and the addition of interfaces enables external information interaction or power transmission, thereby enriching the functionality of the power management device.

[0062] In this application, the first receiving cavity for accommodating the circuit board and the second receiving cavity for wiring are combined, especially in outdoor operations, to prevent water droplets or other liquids from entering the first receiving cavity from the second receiving cavity along the connected wire harness.

[0063] With the development of battery technology, electric drive is gradually replacing engine drive in outdoor work vehicles. A battery pack typically contains one or more battery cells and can serve as a power source for outdoor work vehicles or as a power source for portable power tools. A power management device, which manages the charging and discharging of the battery pack, is an essential component of electrically driven outdoor work vehicles.

[0064] The power management device includes a housing and a circuit board assembly installed inside the housing. The circuit board assembly includes a high-current circuit board and a control circuit board. In order to reduce space usage, the circuit boards are often stacked and the mounting surfaces of the circuit boards are arranged in the same direction. This makes it inconvenient to connect the circuit board located on the mounting surface to another circuit board to the outside. It is necessary to separate the stacked circuit boards from each other, which is troublesome, time-consuming and labor-intensive.

[0065] Based on this, in a third aspect, the technical solution adopted by this application to solve the problems of the prior art is: an outdoor work vehicle, comprising: a walking component configured to support the walking of the outdoor work vehicle; a power output component configured to perform outdoor work; a power system configured to at least power the outdoor work vehicle, the power system comprising: a battery compartment; a battery pack assembled in the battery compartment; and a power management device comprising a housing and a circuit board assembly located within the housing, the circuit board assembly comprising at least two circuit boards stacked in a stacked manner, each of the two stacked circuit boards having a connecting portion; in the stacking direction, the frontal projection surfaces of the two circuit boards have an overlapping area, and the connecting portion on at least one circuit board is at least partially located outside the overlapping area.

[0066] In some embodiments, in the stacking direction, the projected area of ​​one of the two circuit boards is larger than the projected area of ​​the other circuit board, and the connection portion on the larger circuit board is located outside the overlapping area.

[0067] In some embodiments, one of the two circuit boards is configured as a first circuit board capable of supplying power to the walking assembly and / or the power output assembly, and the other is configured as a second circuit board capable of outputting communication information; the connection portion is configured on the first circuit board as a first connection portion for connecting to an external device, and on the second circuit board as a second connection portion for connecting to an external device; in the stacking direction, the orthographic projection surfaces of the first circuit board and the second circuit board have an overlapping area, and the first connection portion on the first circuit board is at least partially located outside the overlapping area.

[0068] In some embodiments, one of the two circuit boards is at least configured as a first circuit board capable of supplying power to the walking assembly and / or the power output assembly, and the other is at least configured as a second circuit board capable of outputting communication information; the first circuit board is provided with a first mounting surface for mounting a first connecting part, and the second circuit board is provided with a second mounting surface for mounting a second connecting part, wherein the first mounting surface and the second mounting surface have the same orientation.

[0069] In some embodiments, the first connection portion is disposed on a first mounting surface of the first circuit board, and the first connection portion includes a first terminal group and a second terminal group located in different regions; in the stacking direction, the front projection surface of the first circuit board and the front projection surface of the second circuit board have an overlapping region, and the first terminal group and the second terminal group are located on both sides of the overlapping region.

[0070] In some embodiments, the battery compartment includes a first side plate and a second side plate arranged opposite to each other, the battery pack being located between the first side plate and the second side plate, and both the first side plate and the second side plate being provided with external terminals that can be connected to the battery pack; in the horizontal direction, the first terminal group is disposed close to the first side plate, and the second terminal group is disposed close to the second side plate; the first terminal group can be connected to the external terminals on the first side plate, and the second terminal group can be connected to the external terminals on the second side plate.

[0071] In some embodiments, the first terminal group and the second terminal group on the first circuit board are located on both sides of the second circuit board and are arranged one in front of the other along the forward direction of the outdoor work vehicle.

[0072] In some embodiments, the first connection portion is disposed on a first mounting surface of the first circuit board, and the first connection portion includes a first terminal group and a second terminal group located in different regions, wherein the first terminal group and the second terminal group are located on the same side of the overlapping region.

[0073] In some embodiments, at least one of the two circuit boards is configured as a first circuit board capable of supplying power to the walking assembly and / or the power output assembly, and the other is configured as a second circuit board capable of outputting communication information. One surface of the first circuit board is attached to the housing, and the other surface is connected to the second circuit board via a connector.

[0074] In some embodiments, the first circuit board is configured to supply power to the second circuit board, and the second circuit board is configured to output communication information to the first circuit board.

[0075] Compared with the prior art, this application has the following beneficial effects:

[0076] In this application, two circuit boards have an overlapping area in the stacking direction, and the mounting surface of one circuit board corresponds to that of the other circuit board. In order to reduce the interference of the other circuit board, by placing the connection part of the circuit board affected by the other circuit board on the mounting surface outside the overlapping area, the wiring interference caused by the space limitation of the circuit board can be reduced, the wiring efficiency can be improved, and there is no need to separate the stacked two circuit boards.

[0077] With the development of battery technology, electric drive is gradually replacing engine drive in outdoor work vehicles. A battery pack typically contains one or more battery cells and can serve as a power source for outdoor work vehicles or as a power source for portable power tools. A power management device, which manages the charging and discharging of the battery pack, is an essential component of electrically driven outdoor work vehicles.

[0078] The power management device includes a housing and a circuit board installed inside the housing. The circuit board has multiple terminals for wiring connections to the outside world. Especially when there are many terminals on the circuit board, the number of wiring connections between the circuit board and the outside world will increase. If not arranged properly, the wiring will become messy and may even cause short circuits.

[0079] Based on this, in a fourth aspect, the technical solution adopted by this application to solve the prior art problem is: an outdoor work vehicle, comprising: a walking assembly configured to support the outdoor work vehicle in motion; a power output assembly configured to perform outdoor work; a power system configured to at least supply power to the outdoor work vehicle, the power system comprising: a battery compartment including a first side plate and a second side plate disposed opposite to each other, both the first side plate and the second side plate being provided with external terminals; a battery pack assembled in the battery compartment, the battery pack being located between the first side plate and the second side plate, the battery pack being configured to be connected to the external terminals; and a power management device configured to at least control the charging and discharging of the battery pack, the power management device including a housing and at least one circuit board located within the housing, the circuit board being provided with a connecting portion; in the horizontal direction, a portion of the connecting portion is disposed near the first side plate, and another portion is disposed near the second side plate.

[0080] In some embodiments, the housing contains two circuit boards, one of which is at least configured as a first circuit board capable of supplying power to the walking assembly and / or the power output assembly, and the other is at least configured as a second circuit board capable of outputting communication information; the connection portion is configured as a first connection portion on the first circuit board, and in the horizontal direction, the first connection portion includes a first terminal group disposed near the first side plate and a second terminal group disposed near the second side plate; the connection portion is configured as a second connection portion on the second circuit board, and in the horizontal direction, the second connection portion includes a third terminal group disposed near the first side plate and a fourth terminal group disposed near the second side plate.

[0081] In some embodiments, in the horizontal direction, a first interface group connecting the inside and outside of the housing is provided on the housing near the first side plate, and a second interface group connecting the inside and outside of the housing is provided on the housing near the second side plate.

[0082] In some embodiments, the first interface group includes a first battery pack connection interface; some terminals in the first terminal group are configured as first battery pack power terminals, and the external terminals on the first side plate connected to the battery pack are electrically connected to the first battery pack power terminals through the first battery pack connection interface; some terminals in the third terminal group are configured as first battery pack signal terminals, and the external terminals on the first side plate connected to the battery pack are electrically connected to the first battery pack signal terminals through the first battery pack connection interface.

[0083] In some embodiments, the second interface group includes a second battery pack connection interface, a portion of the second terminal group is configured as a second battery pack power terminal, and the external terminal on the second side plate connected to the battery pack is electrically connected to the second battery pack power terminal through the second battery pack connection interface; a portion of the fourth terminal group is configured as a second battery pack signal terminal, and the external terminal on the second side plate connected to the battery pack is electrically connected to the second battery pack signal terminal through the second battery pack connection interface.

[0084] In some embodiments, the first side plate is further provided with a charging connector for connecting to an external charging gun; the first interface group includes a charging interface; some terminals in the first terminal group are configured as charging terminals that can be connected to the charging connector, and the charging connector can be connected to the charging terminal through a wire harness passing through the charging interface; the charging terminal is electrically connected to the first battery pack connection terminal and the second battery pack connection terminal on the first circuit board respectively; the third terminal group includes a charge / discharge signal terminal that can be connected to the charging connector, and the charging connector can be connected to the charge / discharge signal terminal through a wire harness passing through the charging interface.

[0085] In some embodiments, the outdoor work vehicle further includes a controller for controlling the operation of at least the walking component and the power output component; the second interface group includes a power transmission interface; the second terminal group includes a power output terminal capable of outputting power, the power output terminal being able to be connected to the controller via a wire harness passing through the power transmission interface; the second interface group further includes a signal transmission interface; the fourth terminal group is configured as a signal transmission terminal connected to the controller via a signal, the signal transmission terminal being able to be electrically connected to the controller via a wire harness passing through the signal transmission interface.

[0086] In some embodiments, the charging terminal includes a positive charging terminal and a negative charging terminal, the power output terminal includes a positive output terminal and an negative output terminal, a conductor is connected between the negative charging terminal and the negative output terminal, and a Hall ring for detecting current is provided on the second circuit board, the conductor extending at least partially into the Hall ring.

[0087] In some embodiments, a first cooling fan capable of dissipating heat from the battery pack is provided on the first side plate, and a second cooling fan capable of dissipating heat from the battery pack is provided on the second side plate; some interfaces in the first interface group further include a first fan interface configured to be connected to the first cooling fan, and the third terminal group includes a first fan terminal configured to be electrically connected to the first cooling fan; the second interface group further includes a second fan interface configured to be connected to the second cooling fan, and the fourth terminal group includes a second fan terminal configured to be electrically connected to the second cooling fan.

[0088] In some embodiments, the housing contains two circuit boards, one of which is at least configured to supply power to the walking assembly and / or the power output assembly, and the other is at least configured to output communication information. The first circuit board can supply power to the second circuit board, and the second circuit board can output communication information to the first circuit board to control the external power supply operation of the first circuit board.

[0089] In some embodiments, the circuit board is at least configured as a second circuit board capable of outputting communication information. The battery compartment is connected to a reversing radar and a radar controller that is electrically connected to the reversing radar. An expansion interface is also provided on the housing. A radar terminal is also provided on the second circuit board. The radar terminal can be connected to the radar controller through a wire harness passing through the expansion interface. The radar controller and the radar are connected through a wire harness.

[0090] In some embodiments, the circuit board is configured as at least a second circuit board capable of outputting communication information, a taillight is connected to the battery compartment, an expansion interface is provided on the housing, a taillight terminal is provided on the second circuit board, and the taillight terminal can be connected to the taillight through a wire harness passing through the expansion interface.

[0091] In some embodiments, the opening of the battery compartment is provided with a compartment cover, and the compartment cover is provided with a monitoring switch capable of monitoring the opening and closing state of the compartment cover; the housing is provided with an expansion interface; the circuit board is at least configured as a second circuit board capable of outputting communication information, the second circuit board is provided with a switch terminal, and the monitoring switch can be connected to the switch terminal through a wire harness passing through the expansion interface.

[0092] In some embodiments, the power management device is disposed between the first side plate and the second side plate in the horizontal direction.

[0093] In some embodiments, an electrical component is provided between the connecting portion of the two parts.

[0094] Compared with the prior art, this application has the following beneficial effects:

[0095] In this application, based on the layout of the external terminals on the first and second side plates of the battery compartment, the connecting part on the circuit board is divided into two parts. One part is set close to the external terminals on the first side plate, and the other part is set close to the external terminals on the second side plate. This makes the connecting part arranged according to the terminals connected to it, so that when the external terminals are connected to the connecting part, the wiring harness layout is more reasonable, neat, and not messy.

[0096] With the development of battery technology, electric drive is gradually replacing engine drive in outdoor work vehicles. A battery pack typically contains one or more battery cells and can serve as a power source for outdoor work vehicles or as a power source for portable power tools. A power management device, which manages the charging and discharging of the battery pack, is an essential component of electrically driven outdoor work vehicles.

[0097] The power management device includes a housing and a circuit board installed inside the housing. The circuit board needs to receive power from the charging gun to charge the battery pack and also needs to discharge to enable outdoor work vehicles to operate. If the terminals for receiving power from the charging gun and discharging to the outside are shared, a large number of wires will be connected to the terminals. When the wiring is external to the housing, the concentration of wires in one place will make it more difficult to close the housing, and the concentration of wires will increase the difficulty and time of maintenance.

[0098] Based on this, the fifth aspect,

[0099] The technical solution adopted by this application to solve the existing technical problems is as follows: an outdoor work vehicle, comprising: a walking component configured to support the walking of the outdoor work vehicle; a power output component configured to perform outdoor work; a charging connector configured to receive external electrical energy; a controller configured to control the operation of the walking component and / or the power output component; a power system configured to supply power to the outdoor work vehicle, the power system comprising: a battery compartment; a battery pack assembled in the battery compartment, the battery pack being able to discharge to the outdoor work vehicle and be able to obtain external electrical energy to charge itself; and a power management device configured to control the charging and discharging of the battery pack, the power management device comprising a housing and at least one circuit board located in the housing, the circuit board being provided with independently arranged charging terminals and power output terminals; the charging terminals being configured to be able to obtain electrical energy transmitted by the charging connector and be able to charge the battery pack, the power output terminals being configured to receive power from the battery pack and discharge to the controller.

[0100] In some embodiments, two circuit boards are disposed within the housing, one configured as a first circuit board and the other configured as a second circuit board; the first circuit board is at least configured to mount the charging terminal and the power output terminal; the second circuit board is at least configured to control the operation of the first circuit board, the first circuit board having a charging state and a discharging state; in the charging state, the second circuit board can control the first circuit board to supply power to the battery pack via the charging terminal; in the discharging state, the second circuit board can control the first circuit board to supply power to the controller via the power output terminal.

[0101] In some embodiments, the first circuit board and the second circuit board are stacked, and in the stacking direction, the projection surface of the first circuit board and the projection surface of the second circuit board have an overlapping area, and the charging terminal and the power output terminal are located outside the overlapping area.

[0102] In some embodiments, the charging terminal includes a positive charging terminal and a negative charging terminal; the power output terminal includes a positive output terminal and an negative output terminal; a conductor is connected between the negative charging terminal and the negative output terminal, and a current sensor for detecting the magnitude of the current flowing through the conductor is provided on the second circuit board.

[0103] In some embodiments, the current sensor includes a Hall ring having an inner hole, and the conductor extends at least partially into the inner hole.

[0104] In some embodiments, the first circuit board and the second circuit board are stacked, and the conductor is disposed across the second circuit board.

[0105] In some embodiments, the circuit board is provided with a switch array and a capacitor array that are electrically connected to each other. The switch array is configured to control the on / off state of the current flowing through it, and the capacitor array is configured to store the charge flowing through it. The capacitor array is electrically connected to the charging terminal and the power output terminal, respectively. In the charging state, the electrical energy transmitted from the charging connector can sequentially pass through the charging terminal, the capacitor array, and the switch array to charge the battery pack. In the discharging state, the electrical energy of the battery pack can sequentially pass through the switch array, the capacitor array, and the power output terminal to discharge to the controller.

[0106] In some embodiments, the circuit board is further provided with a battery pack power terminal connected to the battery pack. The battery pack power terminal is configured on the circuit board to be electrically connected to the switch array. The battery pack receives electrical energy transmitted by the switch array through the battery pack power terminal or outputs electrical energy to the switch array through the battery pack power terminal.

[0107] In some embodiments, the housing is at least partially configured as a heat dissipation section, which contacts the circuit board inside the housing and the cooling medium outside the housing.

[0108] In some embodiments, the power management device is connected to the battery compartment and forms an airflow channel between the battery compartment and the heat dissipation unit is at least partially located within the airflow channel.

[0109] Compared with the prior art, this application has the following beneficial effects:

[0110] In this application, by setting the terminals on the circuit board that receive electrical energy from the charging gun to charge the battery pack and the terminals that discharge to the outside independently, the wiring harness layout is reasonable and not too concentrated, which improves the efficiency of closing the housing and also improves the convenience and efficiency of maintenance between the terminals and the wiring harness, and avoids the situation of the wiring harness being messy due to excessive concentration.

[0111] With the development of battery technology, electric drive is gradually replacing engine drive in outdoor work vehicles. A battery pack typically contains one or more battery cells and can serve as a power source for outdoor work vehicles or as a power source for portable power tools. A power management device, which manages the charging and discharging of the battery pack, is an essential component of electrically driven outdoor work vehicles.

[0112] The power management device includes a housing and a circuit board installed inside the housing. The circuit board generates heat during operation, especially the circuit board with excessive current. In order to protect the circuit board, it is housed 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 performance and lifespan of the circuit board.

[0113] Based on this, in the sixth aspect, the technical solution adopted by this application to solve the prior art problem is: an outdoor work vehicle, comprising: a battery compartment having an opening; a battery pack at least configured to be mounted 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 and discharging of the battery pack, wherein an airflow channel is formed between the power management device and the battery compartment; the power management device includes a housing having a cavity and at least one circuit board located within the cavity, the portion of the housing in contact with the airflow channel being a heat dissipation portion, and the circuit board being at least partially attached to the heat dissipation portion.

[0114] In some embodiments, two circuit boards are disposed in the cavity, 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, wherein the first circuit board is attached to the heat dissipation part.

[0115] In some embodiments, the power management device is connected to the bottom of the battery compartment via a bracket.

[0116] In some embodiments, the battery compartment includes a first side plate and a second side plate disposed opposite to each other, the battery pack being located between the first side plate and the second side plate, and both the first side plate and the second side plate being 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 is respectively capable of connecting to the external terminals on the first side plate and the second side plate.

[0117] In some embodiments, in the horizontal direction, a first connection interface is provided on the housing near the first side plate, and a second connection interface is provided on the housing near the second side plate; the external terminals on the first side plate 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 plate can be electrically connected and / or signal connected to the circuit board assembly through the second connection interface.

[0118] In some embodiments, the cavity is provided with two circuit boards, one of which is at least configured to transmit a high-power current as a first circuit board, and the other is at least configured to output communication information as a second circuit board. The first circuit board includes a first connection portion, and the second circuit board includes a second connection portion. The external terminals on the first side plate are respectively connected to the first connection portion and the second connection portion. The external terminals on the second side plate are respectively connected to the first connection portion and the second connection portion.

[0119] In some embodiments, in the horizontal direction, the first connecting portion includes a first terminal group disposed near the first side plate and a second terminal group disposed near the second side plate, the first terminal group being connected to the external terminal on the first side plate, and the second terminal group being connected to the external terminal on the first side plate; the second connecting portion includes a third terminal group disposed near the first side plate and a fourth terminal group disposed near the second side plate, the third terminal group being connected to the external terminal on the first side plate, and the fourth terminal group being connected to the external terminal on the second side plate.

[0120] This application also provides an outdoor work vehicle, including: a battery compartment having an opening; a battery pack configured to be mounted 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, an airflow channel being formed between the power management device and the battery compartment; the power management device includes a housing having a cavity and at least one circuit board located within the cavity, the portion of the housing in contact with the airflow channel being a heat dissipation portion, and the circuit board being disposed close to the heat dissipation portion.

[0121] In some embodiments, the outdoor work vehicle has two circuit boards disposed in the cavity, one of which is at least configured to deliver a high-power current as a first circuit board, and the other is at least configured to output communication information as a second circuit board, the first circuit board being disposed near the heat dissipation unit.

[0122] In some embodiments, the power management device is connected to the bottom of the battery compartment via a bracket.

[0123] Compared with the prior art, this application has the following beneficial effects:

[0124] In this application, the battery compartment and the power management device form an airflow channel. By using a heat sink to dissipate heat from the circuit board and placing the heat sink inside the airflow channel, a flowing airflow is formed inside the airflow channel when the outdoor work vehicle moves, so that the circuit board can exchange heat with the outside through the heat sink, thereby improving the heat dissipation effect of the circuit board.

[0125] Moreover, the air is compressed within the airflow channel. Once it is discharged from the airflow channel, the compressed air will expand and absorb heat instantly, which can further cool the heat dissipation part.

[0126] With the development of battery technology, electric drive is gradually replacing engine drive in outdoor work vehicles. A battery pack typically contains one or more battery cells and can serve as a power source for outdoor work vehicles or as a power source for portable power tools. A power management device, which manages the charging and discharging of the battery pack, is an essential component of electrically driven outdoor work vehicles.

[0127] The power management device includes a housing and a circuit board installed inside the housing. The circuit board generates heat during operation, especially the circuit board with excessive current. In order to protect the circuit board, it is housed 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 performance and lifespan of the circuit board.

[0128] Although some power management devices expose the circuit board portion with excessive current to the air, the heat dissipation effect is still not ideal because most of the circuit board structure is still located inside the housing.

[0129] Based on this, in the sixth aspect, the technical solution adopted by this application to solve the prior art problem is: a power management device with heat dissipation function, at least applied to outdoor operation vehicles, the power management device comprising: a housing body having an open chamber, the chamber being configured to accommodate at least one circuit board; a heat-conducting element capable of covering the opening of the chamber, the heat-conducting element being capable of exchanging heat generated by the circuit board during operation with an external cold medium.

[0130] In some embodiments, one surface of the circuit board is provided with electrical components that can generate heat, and the other surface is attached to the heat-conducting element.

[0131] In some embodiments, the heat dissipation area of ​​the heat-conducting component is greater than or equal to the heat dissipation area of ​​the circuit board.

[0132] In some embodiments, the heat-conducting element is arranged parallel to the circuit board, and along a direction perpendicular to the parallel direction between the heat-conducting element and the circuit board, the projected area of ​​the heat-conducting element is greater than or equal to the projected area of ​​the circuit board.

[0133] In some embodiments, the ratio of the projected area of ​​the heat-conducting component to the projected area of ​​the circuit board is 1 to 1.5.

[0134] In some embodiments, the outer casing and the heat-conducting element are made of different materials, and the thermal conductivity of the heat-conducting element is greater than that of the outer casing.

[0135] In some embodiments, the heat-conducting element is made of a metallic material, and the housing body is made of a non-metallic material.

[0136] In some embodiments, the outdoor work vehicle includes a battery compartment with a battery pack installed, an airflow channel is formed between the battery compartment and the power management device, and the heat-conducting element is at least partially located within the airflow channel.

[0137] In some embodiments, the power management device is attached to the battery compartment via a bracket.

[0138] This application also provides an outdoor work vehicle, including: a walking assembly configured to support the outdoor work vehicle in motion; a power output assembly configured to perform outdoor work; a power system configured to at least power the outdoor work vehicle, the power system including: a battery compartment; a battery pack assembled in the battery compartment; and a power management device as described above, the power management device being configured to control the charging and discharging of the battery pack.

[0139] Compared with the prior art, this application has the following beneficial effects:

[0140] In this application, by using a heat sink to dissipate heat from the circuit board, the limitations of the circuit board's own heat dissipation are overcome, the efficiency of heat exchange between the circuit board and the outside is improved, the heat dissipation effect of the circuit board is enhanced, the performance of the circuit board is guaranteed, and the service life of the circuit board is extended. [Image Description]

[0141] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings:

[0142] Figure 1 is a three-dimensional view of the outdoor work vehicle in some embodiments of this application;

[0143] Figure 2 is a diagram showing the positional relationship between the battery compartment and the power management device of an outdoor work vehicle in some embodiments of this application at an angle;

[0144] 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 this application;

[0145] Figure 4 is a three-dimensional structural schematic diagram of the power management device of an outdoor work vehicle in some embodiments of this application from one angle;

[0146] Figure 5 is a three-dimensional structural schematic diagram of the power management device of an outdoor work vehicle from another angle in some embodiments of this application;

[0147] Figure 6 is an exploded view of a portion of the power management device for outdoor work vehicles in some embodiments of this application;

[0148] Figure 7 is a schematic diagram of the structure in which the battery compartment of an outdoor work vehicle is connected to the first circuit board and the second circuit board respectively in some embodiments of this application;

[0149] Figure 8 is a structural schematic diagram of the outer shell of an outdoor work vehicle from one angle in some embodiments of this application;

[0150] Figure 9 is a structural schematic diagram of the outer shell of an outdoor work vehicle from another angle in some embodiments of this application;

[0151] Figure 10 is a schematic diagram of the structure of the first circuit board in some embodiments of this application;

[0152] Figure 11 is a schematic diagram of the structure of the second circuit board in some embodiments of this application;

[0153] Figure 12 is a top view of the first circuit board and the second circuit board in the stacking direction in some embodiments of this application;

[0154] Figure 13 is a schematic diagram showing 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 this application;

[0155] Figure 14 is a logic block diagram of the power management device, battery compartment, battery pack, controller, power output component and walking component of an outdoor work vehicle in some embodiments of this application.

[0156] The following are the meanings of the reference numerals in the diagram: 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 terminal; 214. Reversing radar; 215. Radar controller; 216. Taillight; 22. Battery pack; 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; 2302. Second interface group; 23021. Second battery pack connection interface; 23022. Power transmission interface; 23023. Signal transmission interface; 23024. Second fan interface; 231. Outer shell body; 232. First receiving cavity; 2321. First stepped surface; 23211. First through hole; 2322. Second stepped surface; 23221. Second through hole; 233. Second receiving cavity; 2331. First wiring area; 2332. Second wiring area; 234. First cover plate; 2341. Sealing receiving groove; 2342. Sealing strip; 235. Second cover plate; 24. First circuit board; 241. First mounting surface; 242. First connecting part; 2421. First terminal group; 24211. First battery pack connection terminal; 24212. Charging terminal; 242121. Charging positive terminal; 242122. Charging negative terminal; 2422, Second terminal group; 24221, Second battery pack connection terminal; 24222, Power output terminal; 242221, Output positive terminal; 242222, Output negative terminal; 243, Switch array; 2431, MOSFET switch; 244, Capacitor array; 2441, Capacitor; 245, Conductor; 2451, Conductive post; 25, Second circuit board; 251, Second mounting surface; 252, Second connection part; 2521, Third terminal group; 25211, First battery pack signal terminal; 25212, First fan terminal; 25213, Charge / discharge signal terminal; 2522, Fourth terminal group; 25221, Second battery pack signal terminal; 25222, Second fan terminal; 25223, Signal transmission terminal; 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 effect ring; 259. Overlapping area; 26. Bracket; 27. Airflow channel; 28. Monitoring switch; 3. Operating components; 31. Left operating lever; 32. Right operating lever; 4. Seat; 5. Power output components; 6. Walking components; 61. Front walking wheel; 62. Rear walking wheel. [Detailed Implementation]

[0157] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0158] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0159] Please refer to Figure 1, which shows an outdoor work vehicle according to one embodiment of this application, including a frame 1, an operating component 3, a seat 4, a power output component 5, a walking component 6, and a power system 2.

[0160] The frame 1 extends along a straight line, and the operating components 3, seat 4, power output components 5, running components 6 and power system 2 are located at different positions on the frame 1.

[0161] The operating component 3 includes a left operating lever 31 on the left side and a right operating lever 32 on the right side of the outdoor work vehicle. The operator controls the outdoor work vehicle to move forward, backward, or turn by manipulating the left operating lever 31 and the right operating lever 32. The operating component 3 can also be a steering wheel that controls the outdoor work vehicle.

[0162] In some embodiments, the operating component 3 is provided with control buttons for adjusting the operating speed of the power output component 5 and the walking component 6, so as to facilitate the operator to quickly and accurately control the operation of the outdoor work vehicle. Furthermore, the operating component 3 may also be provided with buttons for adjusting the brightness of the vehicle's lights, buttons for adjusting the cutting speed, etc.

[0163] In some embodiments, a vehicle-mounted hair dryer can also be installed at the front end of the frame 1 to blow away fallen leaves on the lawn, thereby reducing the inconvenience caused to outdoor work vehicles during operation. Furthermore, the operating component 3 is equipped with buttons to control the direction and air volume of the vehicle-mounted hair dryer, so that operators can control the vehicle-mounted hair dryer from the vehicle while performing driving operations, without having to get out of the vehicle.

[0164] The seat 4 is mounted on the frame 1, and the left control lever 31 and the right control lever 32 are positioned close to the seat 4 and located on the left and right sides of the seat 4 respectively, so that the operator sitting on the seat 4 can control the operation of the outdoor work vehicle by operating the left control lever 31 and the right control lever 32.

[0165] The power output component 5 serves as the component that enables the tool's function. In one embodiment, the outdoor work vehicle is specifically a ride-on lawnmower, and the power output component 5 is specifically a cutting component, located below the frame 1. It is used to output power to enable the lawnmower's mowing function.

[0166] In some embodiments, the cutting assembly includes a blade disc, a mowing element, and a cutting motor. The cutting motor is controlled by a control button on the operating assembly 3, and the mowing element is used to cut vegetation such as grasses when rotating at high speed. For example, the mowing element is a blade used to cut vegetation on a lawn. The blade disc forms a mowing space for accommodating the mowing element, which is at least partially located within the mowing space.

[0167] The power output component 5 can also be detached from the outdoor work vehicle. It is understood that the power output component 5 can be replaced with other components to meet the usage needs of different garden operations. Therefore, the outdoor garden lawnmower can not only cut vegetation, but the cutting component can also be replaced with functional parts such as snow shoveling, snow sweeping, snow blowing, and rinsing. Those skilled in the art should be able to adapt and replace various functional parts without creative effort, and all of the above should be included within the protection scope of this embodiment.

[0168] When the cutting components are replaced with functional components such as snow shovel, snow sweeper, or snow blower, the power system 2 of the outdoor work vehicle of this application can also supply power to the aforementioned functional components such as snow shovel, snow sweeper, and snow blower.

[0169] The walking assembly 6 includes walking wheels mounted on the frame 1 and a walking motor for driving the walking wheels. The walking wheels are located on both sides of the frame 1, so that the center of gravity of the outdoor work vehicle is kept within the frame 1, thereby reducing the probability of the outdoor work vehicle overturning when walking.

[0170] In one embodiment, the number of wheels is set to four, including two front wheels 61 and two rear wheels 62. The front wheels 61 can be omnidirectional wheels. A drive motor is connected to each of the rear wheels 62 to drive their rotation. Both rear wheels 62 are matched with drive motors, and the speeds of the two drive motors can be the same or different. When the operator is driving the outdoor work vehicle straight, the speeds of the two drive motors are approximately the same; when the operator is driving the outdoor work vehicle turning, the speeds of the two drive motors are different, and the outdoor work vehicle turns towards the side with the lower speed drive motor. The diameter of the front wheels 61 is smaller than the diameter of the rear wheels 62.

[0171] The power system 2 is located at the rear of the vehicle frame 1. The power system 2 includes multiple battery packs 22, a power management device 23 (power management module) configured to uniformly manage the charging and discharging processes of at least 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 terminals thereon 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 with 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 detached 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 includes a ternary lithium battery pack, and the second-type battery pack includes a lithium iron phosphate battery pack.

[0172] Compared to traditional methods that use fossil fuels as an energy source, the outdoor work vehicle proposed in this application is more environmentally friendly and better suited to long-term development plans.

[0173] Please refer to Figures 2, 3, 6, 8, and 9 simultaneously. In some embodiments, the power system 2 includes a battery compartment 21, a battery pack 22, and a power management module. The battery pack 22 is assembled inside the battery compartment 21. The power management module is located outside the battery compartment 21 and includes a housing body 231. The housing body 231 includes a first receiving cavity 232 and a second receiving cavity 233 that are isolated from each other. The first receiving cavity 232 is configured to accommodate at least one circuit board. The circuit board has a connection portion for connecting to an external device. The connection portion extends into the second receiving cavity 233, and the second receiving cavity 233 is at least configured as a wiring area for electrically connecting and / or signal connecting the connection portion located in the second receiving cavity 233 to an external device.

[0174] By separating the first receiving cavity 232 for accommodating the circuit board and the second receiving cavity 233 for wiring the circuit board, the operator can perform wiring or disconnection operations only in the second receiving cavity 233 without touching the circuit board, thus providing good protection for the circuit board and the electrical components on it.

[0175] As shown in Figures 6-11, in some embodiments, two circuit boards are disposed within the first receiving cavity 232. One circuit board 24 is configured to supply power to the walking assembly 6 and / or the power output assembly 5, and the other circuit board 25 is configured to output communication information. A connection portion is configured as a first connection portion 242 on the first circuit board 24 and as a second connection portion 252 on the second circuit board 25. The first connection portion 242 can extend from the first receiving cavity 232 to the second receiving cavity 233; the second connection portion 252 can extend from the first receiving cavity 232 to the second receiving cavity 233. By disposing the first circuit board 24 and the second circuit board 25 in the first receiving cavity 232, and extending the first connection portion 242 of the first circuit board 24 and the second connection portion 252 of the second circuit board 25 to the second receiving cavity 233, the first circuit board 24 and the second circuit board 25 can be electrically and / or signal connected to 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 the outside world, thus avoiding impacts.

[0176] As shown in Figures 8 and 9, in some embodiments, the outer shell body 231 has a first stepped surface 2321 and a second stepped surface 2322 formed in the first receiving 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 receiving cavity 232 to the second receiving cavity 233 through the first through hole 23211, and the second connecting portion 252 can extend from the first receiving cavity 232 to the second receiving cavity 233 through the second through hole 23221. The first through hole 23211 and the second through hole 23221 both connect to the first receiving cavity 232 and the second receiving cavity 233. The first connecting part 242 passes through the first through hole 23211 and is partially located in the second receiving cavity 233. The second connecting part 252 passes through the second through hole 23221 and is partially located in the second receiving cavity 233. In this way, the first connecting part 242 and the second connecting part 252 extend to the second receiving cavity 233 through different first step surfaces 2321 and second step surfaces 2322, respectively. This helps to make the wiring harness connection neat by independently wiring the first connecting part 242 and the second connecting part 252.

[0177] In some embodiments, the first through-hole 23211 and the second through-hole 23221 are located above the second receiving cavity 233. This prevents liquid or water droplets in the second receiving cavity 233 from flowing into the first receiving cavity 232, thus avoiding contamination of the first circuit board, the second circuit board, or other components in the first receiving cavity 232.

[0178] As shown in Figure 9, in some embodiments, one end of the first through hole 23211 is located in the first wiring area 2331, and the other end is located in the first stepped surface 2321. One end of the second through hole 23221 is located in the second wiring area 2332, and the other end is located in the second stepped surface 2322.

[0179] As shown in Figures 8-11, in some embodiments, the first step surface 2321 and the second step surface 2322 have different heights. The first circuit board 24 and the second circuit board 25 are arranged in a top-bottom layer. Specifically, the height of the first step surface 2321 is higher than the height of the second step surface 2322, and the height of the first circuit board 24 is similar to and slightly higher than the height of the first step surface 2321. The height of the second circuit board 25 is similar to and slightly higher than the height of the second step surface 2322. The portion of the first circuit board 24 with the first connecting portion 242 is correspondingly arranged with the first step surface 2321, and the portion of the second circuit board 25 with the second connecting portion 252 is correspondingly arranged with the second step surface 2322. By independently arranging the first circuit board 24 and the second circuit board 25 in layers, and by setting the first step surface 2321 and the second step surface 2322 to match the heights of the first circuit board 24 and the second circuit board 25, the overall power management device 23 has a compact structural layout, and the layered design of the first connecting portion 242 and the second connecting portion 252 prevents interference between them.

[0180] As shown in Figure 9, in some embodiments, the second receiving cavity 233 includes at least a wiring area, which includes a first wiring area 2331 and a second wiring area 2332 with different heights. A first connecting portion 242 can enter the first wiring area 2331 through a first through hole 23211 via a first stepped surface 2321, and a second connecting portion 252 can enter the second wiring area 2332 through a second through hole 23221 via a second stepped surface 2322. The wiring areas are configured as the first wiring area 2331 and the second wiring area 2332 with different heights. The first connecting portion 242 is connected to an external device via a wiring harness in the first wiring area 2331, and the second connecting portion 252 is connected to an external device via a wiring harness in the second wiring area 2332. In this way, the wiring harnesses connected to the first connecting portion 242 and the second connecting portion 252 are also arranged in layers within the second receiving cavity 233, reducing interference between the first circuit board 24 and the second circuit board 25 when connecting wiring harnesses to external devices.

[0181] As shown in Figures 8 and 9, in some embodiments, on outdoor work vehicles, 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.

[0182] As shown in Figures 8 to 11, in some embodiments, two second receiving cavities 233 are provided, and the two second receiving cavities 233 are respectively provided on both sides of the first receiving cavity 232. Specifically, each second receiving cavity 233 has one first wiring area 2331 on each side of the first receiving cavity 232, for a total of two first wiring areas 2331. Correspondingly, two first stepped surfaces 2321 are provided in the first receiving cavity 232, each first stepped surface 2321 corresponding to one first wiring area 2331, and each first stepped surface 2321 is provided with a first through hole 23211 to connect the first wiring area 2331. Each second receiving cavity 233 has one second wiring area 2332 on each side of the first receiving cavity 232, for a total of two second wiring areas 2332. Correspondingly, two second stepped surfaces 2322 are provided within the first receiving 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 to connect to the second wiring area 2332. The first circuit board 24 can be electrically connected and / or signal connected to external devices through the two first wiring areas 2331, and the second circuit board 25 can be electrically connected and / or signal connected to external devices through the two second wiring areas 2332.

[0183] As shown in Figures 4 to 6, 10, and 11, in some embodiments, a first cover plate 234 is provided at the opening of the first receiving cavity 232, and a second cover plate 235 is provided at the opening of the second receiving cavity 233. After the circuit board is installed in the first receiving cavity 232, the first cover plate 234 can seal the circuit board inside the first receiving cavity 232 to protect the first circuit board 24 and the second circuit board 25.

[0184] As shown in Figures 4 and 5, after an external device is connected to the first connecting part 242 and the second connecting part 252 via a wire harness, the second cover plate 235 is used to store the first connecting part 242, the second connecting part 252, and part of the wire harness located in the second receiving cavity 233 within the second receiving cavity 233. The outer casing body 231 has a first notch, and the second cover plate 235 has a second notch. When the second cover plate 235 is closed with the outer casing body 231, the first notch and the second notch combine to form a connection interface, allowing the wire harness to pass through.

[0185] As shown in Figure 6, in some embodiments, a first sealing element is provided between the first cover plate 234 and the outer shell body 231. Specifically, it can be a sealing strip 2342 or other sealing devices. Specifically, a sealing receiving groove 2341 is provided around the first cover plate 234, and a sealing strip 2342 is provided in the sealing receiving groove 2341. The sealing strip 2342 is partially exposed in the sealing receiving groove 2341. When the first cover plate 234 is closed with the outer shell body 231, the outer shell body 231 presses the sealing strip 2342 and is sealed and locked with the outer shell body 231 by screws.

[0186] In some embodiments, a second sealing element is provided between the second cover plate 235 and the outer casing body 231, which may be a sealing strip 2342 or other sealing devices. Furthermore, two second receiving cavities 233 are provided, 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 outer casing body 231.

[0187] In some embodiments, two, three or more first receiving cavities 232 may be provided, and one, three or more second receiving cavities 233 may be provided.

[0188] Please refer to Figures 2, 3, and 7 through 9 simultaneously. In some embodiments, the power 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 mounted within the battery compartment 21 along the opening; the power management device 23 includes a housing body 231, which includes a first receiving cavity 232 and a second receiving cavity 233 isolated from each other. The first receiving cavity 232 is configured to accommodate at least one circuit board, on which a connection portion for connecting to an external device is provided. The connection portion extends into the second receiving cavity 233, and the second receiving cavity 233 is at least configured as a wiring area for electrically and / or signally connecting the connection portion located within the second receiving cavity 233 to an external device. The connection portion is disposed on a mounting surface of the circuit board, the orientation of which is different from the orientation of the opening of the battery compartment 21.

[0189] In some embodiments, the opening of the battery compartment 21 faces upward and the mounting surface of the circuit board faces downward. This allows the battery compartment 21 to be unsecured from the frame 1 and the power management device 23 to be flipped when wiring or disconnecting wires or repairing the circuit board inside the power management device 23 on the vehicle. This allows the power management device 23 to be flipped from the bottom of the battery compartment 21 to an angle and position that is easy for workers to access, thereby facilitating wiring or disconnecting of the connection part or disassembling of the housing 230 for circuit board repair.

[0190] In some embodiments, the extension direction of the connector is different from the opening direction of the battery compartment 21. Furthermore, the extension is disposed 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 connector is also downward.

[0191] Furthermore, the power management device 23 can be installed at the bottom of the battery compartment 21, or on the side or top of the battery compartment 21, depending on the actual usage requirements.

[0192] 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 opening of the battery compartment 21 faces upward, the mounting surface of the circuit board also faces upward. In some embodiments, when the opening of the battery compartment 21 is horizontal, the mounting surface of the circuit board is also horizontal.

[0193] Please refer to Figures 2, 3, and 7 through 9. In some embodiments, on outdoor work vehicles, the opening of the battery compartment 21 faces upward, while the opening of the second receiving cavity 233 faces downward, opposite to the opening of the battery compartment 21. In conjunction with the above embodiments, since the mounting surface of the circuit board faces downward, the connection portion of the mounting surface also faces downward. Furthermore, since the connection portion of the circuit board is located within the second receiving cavity 233, the opening of the second receiving cavity 233 is set downward. During maintenance, when the battery compartment 21 is flipped, the battery management device is also flipped, presenting the second receiving cavity 233 at an easily accessible position and angle to the operator for wiring harness assembly / disassembly or disassembly / assembly of the power management device 23 housing 230.

[0194] Please refer to Figures 2, 3, and 7 through 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 be moved simultaneously. Furthermore, when the opening of the battery compartment 21 faces upward and the second receiving cavity 233 of the power management device 23 faces downward, when the battery compartment 21 is moved and its opening is oriented horizontally or downward, the opening of the second receiving cavity 233 of the power management device 23 will correspondingly be oriented horizontally or upward. This facilitates operation within the second receiving cavity 233, allowing for the wiring harness connection of the first and second terminals to external devices.

[0195] In some embodiments, when the opening direction of the battery compartment 21 is upward, the opening direction of the second receiving cavity 233 of the power management device 23 can also be set horizontally or upward. Of course, the opening direction of the second receiving cavity 233 can also be set tilted upward or tilted downward, or it can be set horizontally.

[0196] In some embodiments, the opening direction of the first receiving cavity 232 is different from the opening direction of the battery compartment 21, that is, the opening direction of the first receiving cavity 232 is also downward. In some embodiments, the opening direction of the first receiving cavity 232 is the same as the opening direction of the battery compartment 21. Of course, the opening direction of the first receiving cavity 232 can also be set upward, horizontal, or downward according to actual needs.

[0197] In some embodiments, the opening of the battery compartment 21 is upward, the opening of the first receiving cavity 232 is upward, and the opening of the second receiving cavity 233 is downward.

[0198] In some embodiments, the power management device 23 is disposed on an outdoor work vehicle, and the surface on the outdoor work vehicle that connects to the power management device 23 is the connecting surface, and the opening direction of the second receiving cavity 233 is opposite to the connecting surface. Further, the power management device 23 may also be disposed on the frame 1 or seat 4, or other feasible locations, with the surface on the outdoor work vehicle that connects to the power management device 23 being the connecting surface, and the opening direction of the second receiving cavity 233 being set opposite to the connecting surface. This is to ensure that the connecting surface does not interfere with the installation or removal of the housing 230 of the power management device 23 or the installation or removal of the wiring harness within the second receiving cavity 233.

[0199] Please refer to Figures 2, 3, 6 through 10, and 12 simultaneously. In 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 assembled within the battery compartment 21. The power management device 23 is configured at least to control the charging and discharging of the battery pack 22. The power management device 23 includes a housing body 231, which is configured as a first receiving cavity 232 and a second receiving cavity 233 isolated from each other. The first receiving cavity 232 is configured to receive a first circuit board 24 and a second circuit board 25. The first circuit board 24 is used to provide electrical power to the walking assembly 6 and / or the power output assembly 5. The second circuit board 25 is configured to transmit communication signals. The first circuit board 24 is provided with a first connecting part 242, and the second circuit board 25 is provided with a second connecting part 252. Both the first connecting part 242 and the second connecting part 252 can extend from the first receiving cavity 232 to the second receiving cavity 233. The first connecting part 242 and the second connecting part 252 can respectively make electrical connections and / or signal connections with external devices.

[0200] The outer casing 231 has a first stepped surface 2321 and a second stepped surface 2322 with different heights within the first receiving cavity 232. The first stepped surface 2321 has a first through hole 23211 connecting the first receiving cavity 232 and the second receiving cavity 233, and the second stepped surface 2322 has a second through hole 23221 connecting the first receiving cavity 232 and the second receiving cavity 233. The first connecting part 242 can enter the second receiving cavity 233 through the first through hole 23211, and the second connecting part 252 can enter the second receiving cavity 233 through the second through hole 23221. This allows terminals on two circuit boards within one cavity to be led out to another cavity via stepped surfaces of different heights. This ensures that when wiring to the two circuit boards is done separately, the wiring harness on the first circuit board 24 will not interfere with the wiring harness on the second circuit board 25, resulting in neat and orderly wiring connections. Furthermore, it prevents overcrowding when arranging wiring harnesses on a single circuit board. In particular, it reduces the likelihood of wires bridging between wiring harnesses on circuit boards subject to overcurrent, thereby reducing the occurrence of short circuits and thus minimizing potential safety hazards.

[0201] Furthermore, configuring the first circuit board to provide power to the walking assembly or power output assembly, and configuring the second circuit board to transmit communication signals, will reduce the impact of the magnetic field generated by the first circuit board when it experiences overcurrent on the transmission of communication signals on the second circuit board.

[0202] Furthermore, the height of the first step surface 2321 is higher than the height of the second step surface 2322, and the height of the first circuit board 24 is similar to and slightly higher than the height of the first step surface 2321. The height of the second circuit board 25 is similar to and slightly higher than the height of the second step surface 2322. The portion of the first circuit board 24 with multiple first terminals is correspondingly arranged to the first step surface 2321, and the portion of the second circuit board 25 with multiple second terminals is correspondingly arranged to the second step surface 2322. By adopting a layered and independently arranged method for the first circuit board 24 and the second circuit board 25, and by setting the first step surface 2321 and the second step surface 2322 corresponding to the respective heights of the first circuit board 24 and the second circuit board 25, the structural layout of the entire power management device 23 can be made more compact, while reducing the length of the first and second terminals.

[0203] As shown in Figure 9, in some embodiments, the wiring area of ​​the second receiving cavity 233 includes a first wiring area 2331 and a second wiring area 2332, with the height of the first wiring area 2331 being higher than the height of the second wiring area 2332. Dividing the two wiring areas into different heights facilitates wire harness connection and reduces the occurrence of short circuits caused by wire bridging.

[0204] Referring simultaneously to Figures 2, 3, 6, and 12, in some embodiments, the power system 2 of the outdoor work vehicle of this application further includes a battery compartment 21, a battery pack 22, and a power management device 23. The battery pack 22 is assembled within the battery compartment 21. The power management device 23 includes a housing 230 and a circuit board assembly located within the housing 230. The circuit board assembly includes at least two circuit boards arranged in a stacked configuration, each of which has a connection portion. In the stacking direction, the projected surfaces of the two circuit boards have an overlapping area 259, and the connection portion on at least one circuit board is at least partially located outside the overlapping area 259. Because the two circuit boards are stacked, placing the connection portion of the circuit board at least partially outside the overlapping area 259 helps reduce interference caused by space limitations on the circuit board when external wiring harnesses are connected to it, thus improving wiring efficiency.

[0205] In some embodiments, in the stacking direction, the projected area of ​​one of the two circuit boards is larger than the projected area of ​​the other circuit board, and the connection portion on the larger circuit board is located outside the overlapping area 259.

[0206] Referring simultaneously to Figures 1, 2, 3, 6, and 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 walking 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. A connection portion is configured on the first circuit board 24 as a first connection portion 242 for connecting to an external device, and on the second circuit board 25 as a second connection portion 252 for connecting to an external device. In the stacking direction, the projected surfaces of the first circuit board 24 and the second circuit board 25 have an overlapping area 259, and the first connection portion 242 on the first circuit board 24 is at least partially located outside the overlapping area 259.

[0207] As shown in Figure 12, in some embodiments, in the stacking direction, the projected area of ​​the first circuit board 24 is larger than the projected area of ​​the second circuit board 25, and the first connection portion 242 on the first circuit board 24 is at least partially located outside the overlapping area 259, or the first connection portion 242 on the first circuit board 24 may be entirely located outside the overlapping area 259.

[0208] Referring simultaneously to 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 walking 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 has a first mounting surface 241 for mounting a first connecting portion 242, and the second circuit board 25 has a second mounting surface 251 for mounting a second connecting portion 252. The first mounting surface 241 and the second mounting surface 251 face the same direction. When the first circuit board 24 and the second circuit board 25 are stacked, and the first mounting surface 241 and the second mounting surface 251 face the same direction, the first mounting surface 241 will face the non-mounting surface of the second circuit board 25. This will cause the first connecting portion 242 on the first mounting surface 241 to be interfered with by the second circuit board 25 when making external connections. Therefore, by placing the first connecting portion 242 on the first mounting surface 241 outside the overlapping area 259, the interference of the first connecting portion 242 with the second circuit board 25 can be reduced when making connections.

[0209] Please refer to Figures 10 to 12 simultaneously. In some embodiments, a first connection portion 242 is disposed on a first mounting surface 241 of a first circuit board 24. The first connection portion 242 includes a first terminal group 2421 and a second terminal group 2422 located in different regions. In the stacking direction, the frontal projection surface of the first circuit board 24 and the frontal projection surface of the second circuit board 25 have an overlapping region 259, and the first terminal group 2421 and the second terminal group 2422 are located on both sides of the overlapping region 259. Especially when the first mounting surface 241 and the second mounting surface 251 face the same direction, the above arrangement allows the first terminal group 2421 and the second terminal group 2422 located on the first circuit board 24 to connect to external devices while avoiding interference from the second circuit board 25.

[0210] Please refer to Figures 2, 3, and 10 to 12 simultaneously. Further, in conjunction with the foregoing embodiments, the battery compartment 21 includes a first side plate 211 and a second side plate 212 disposed opposite to each other. External terminals 213 are provided on both the first side plate 211 and the second side plate 212. The battery pack 22 is located between the first side plate 211 and the second side plate 212. Terminals at one end of the battery pack 22 are connected to the external terminals 213 on the first side plate 211, and terminals at the other end of the battery pack 22 are connected to the external terminals 213. In some embodiments, some terminals in the first terminal group 2421 that avoids the second circuit board 25 are connected to the external terminals 213 on the first side plate 211, and some terminals in the second terminal group 2422 that avoids the second circuit board 25 are connected to the external terminals 213 on the second side plate 212.

[0211] As shown in Figure 7, in some embodiments, in the horizontal direction, the first terminal group 2421 is disposed near the first side plate 211, and the second terminal group 2422 is disposed near the second side plate 212.

[0212] As shown in Figures 7 and 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 in front of the other along 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 in front of the other along the forward direction of the outdoor work vehicle.

[0213] As shown in Figure 10, in some embodiments, a first connecting portion 242 is disposed on a first mounting surface 241 of a first circuit board 24. The first connecting portion 242 includes a first terminal group 2421 and a second terminal group 2422 located in different regions, and the first terminal group 2421 and the second terminal group 2422 are located on the same side of the overlapping region 259. Further, the battery compartment 21 includes a first side plate 211 and a second side plate 212 disposed opposite to each other, and the battery pack 22 is located between the first side plate 211 and the second side plate 212. In the horizontal arrangement direction, the first terminal group 2421 and the second terminal group 2422 can both be disposed close to the first side plate 211, or both can be disposed close to the second side plate 212.

[0214] In some embodiments, the battery compartment 21 includes a first side plate 211 and a second side plate 212 disposed opposite to each other, and the battery pack 22 is located between the first side plate 211 and the second side plate 212. In the horizontal row direction, the third terminal group 2521 and the fourth terminal group 2522 on the second circuit board 25 may be disposed close to the first side plate 211, or both may be disposed close to the second side plate 212.

[0215] In some embodiments, the power system 2 of the outdoor work vehicle of this 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 terminal during the charging and discharging process due to the setting of a single output terminal in the large-capacity battery pack 22, two output terminals are provided on the battery pack 22, respectively located at both ends of the battery pack 22. The output terminal of each end is configured as a terminal for outputting electrical energy to the outside or charging the battery pack 22.

[0216] As shown in Figures 2, 3, and 7, to facilitate electrical conduction between the two terminals of the battery pack 22, the battery compartment 21 of this application includes a first side plate 211 and a second side plate 212 disposed opposite each other. External terminals 213 are provided on both the first side plate 211 and the second side plate 212. The battery pack 22 is located between the first side plate 211 and the second side plate 212. One terminal of the battery pack 22 is connected to the external terminal 213 on the first side plate 211, and the other terminal of the battery pack 22 is connected to the external terminal 213. The power management device 23 includes a housing 230 and at least one circuit board located within the housing 230. A connecting portion is provided on the circuit board. In the horizontal direction, a portion of the connecting portion is disposed near the first side plate 211, and another portion is disposed near the second side plate 212. This facilitates the electrical connection of the portion of the power management device 23 to its respective external terminal 213, thereby facilitating the power management device 23's control over the charging and discharging of the battery pack 22.

[0217] Please refer to Figures 1, 6, 7, 10, 11, and 12 simultaneously. In some embodiments, two circuit boards are disposed within the housing 230. One is at least configured as a first circuit board 24 capable of supplying power to the walking 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. A connection portion is configured as a first connection portion 242 on the first circuit board 24. In the horizontal direction, 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. A connection portion is configured as a second connection portion 252 on the second circuit board 25. In the horizontal direction, 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 plate 211 and a second terminal group 2422 located near the second side plate 212. This allows the first circuit board 24 to connect a portion of the terminals in its first terminal group 2421 to the external terminals 213 on the first side plate 211 via wiring harnesses, and similarly, to connect a portion of the terminals in its second terminal group 2422 to the external terminals 213 on the second side plate 212 via wiring harnesses. Simultaneously, the second circuit board 25 connects a portion of the terminals in its third terminal group 2521 to the external terminals 213 on the first side plate 211 via wiring harnesses, and similarly, to a portion of the terminals in its fourth terminal group 2522 to the external terminals 213 on the second side plate 212 via wiring harnesses. This saves wiring harnesses and makes the wiring harness layout more rational.

[0218] It should be understood that, in some embodiments, the first circuit board 24 of this application is configured to receive external electrical energy to charge the battery pack 22, or to receive electrical energy from the battery pack 22 and supply power to one of the power output component 5 and the walking component 6, or simultaneously supply power to both the power output component 5 and the walking component 6. The second circuit board 25 is configured primarily to receive and transmit information to control the first circuit board 24 to receive external electrical energy to charge the battery pack 22 or to control the battery pack 22 to discharge externally.

[0219] Please refer to Figures 2 to 5, 7, and 12 simultaneously. In some embodiments, in the horizontal direction, a first interface group 2301 connecting the interior and exterior of the housing 230 is provided on the housing 230 near the first side plate 211, and a second interface group 2302 connecting the interior and exterior of the housing 230 is provided on the housing 230 near the second side plate 212. 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.

[0220] Please refer to Figures 2 to 4 and Figures 10 to 12 simultaneously. In some embodiments, the first interface group 2301 includes a first battery pack connection interface 23011. Some terminals in the first terminal group 2421 are configured as first battery pack power terminals 24211. 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 through the first battery pack connection interface 23011. Some terminals in the third terminal group 2521 are configured as first battery pack signal terminals 25211. External terminals 213 on the first side plate 211 connected to the battery pack 22 are electrically connected to the first battery pack signal terminals 25211 through the first battery pack connection interface 23011. This achieves 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 signal connection with the second circuit board 25.

[0221] Please refer to Figures 2 to 4 and Figures 10 to 12 simultaneously. In some embodiments, the second interface group 2302 includes a second battery pack connection interface 23021. A portion of the terminals of the second terminal group 2422 is configured as second battery pack power terminals 24221. External terminals 213 on the second side plate 212 connected to the battery pack 22 are electrically connected to the second battery pack power terminals 24221 through the second battery pack connection interface 23021. A portion of the fourth terminal group 2522 is configured as second battery pack signal terminals 25221. External terminals 213 on the second side plate 212 connected to the battery pack 22 are electrically connected to the second battery pack signal terminals 25221 through 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.

[0222] As shown in Figures 10 to 12, in some embodiments, a first electrical component is configured on a first circuit board 24, located between a first terminal group 2421 and a 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 MOSFET switches 2431, and the capacitor array 244 may be an array composed of multiple capacitors 2441. A second electrical component is configured on a second circuit board 25, located between a third terminal group 2521 and a fourth terminal group 2522. The second electrical component includes a processor 257 and other processing modules, etc.

[0223] Please refer to Figures 1 to 4 and Figures 10 to 12 simultaneously. In some embodiments, the first side plate 211 is further provided with a charging connector 2112 for connecting to an external charging gun. The first interface group 2301 includes a charging interface 23012. Some terminals in the first terminal group 2421 are configured as charging terminals 24212 capable of connecting to the charging connector 2112. The charging connector 2112 can be connected to the charging terminal 24212 via a wire harness passing through the charging interface 23012. The charging terminal 24212 is electrically connected to the first battery pack connection terminal 24211 and the second battery pack connection terminal 24221 on the first circuit board 24, respectively. The third terminal group 2521 includes a charge / discharge signal terminal 25213 capable of connecting to the charging connector 2112. The charging connector 2112 can be connected to the charge / discharge signal terminal 25213 via a wire 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 terminal 24211 and the second battery pack terminal 24221 through the first circuit board 24, which 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 charging and discharging signal terminal 25213.

[0224] Please refer to Figures 2 to 4 and Figures 10 to 14 simultaneously. In some embodiments, the outdoor work vehicle also includes a controller that controls the operation of at least the walking 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 a power output terminal 24222 capable of outputting electrical energy, which can be connected to the controller via a wiring harness passing 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 connected to the controller via a signal, which can be connected to the controller via a wiring harness passing through the signal transmission interface 23023. The battery pack 22 delivers electrical energy to the power output component 5 and / or the walking component 6 on the outdoor work vehicle through the power output terminal 24222 on the first circuit board 24, and monitors the power delivery status of the power output terminal 24222 in real time through the signal transmission terminal 25223, so that the second circuit board 25 controls the battery pack 22 to supply power to the walking component 6 and / or the power output component 5.

[0225] Please refer to Figures 2 to 4 and Figures 10 to 14 simultaneously. In some embodiments, the charging terminal 24212 includes a charging positive terminal 242121 and a charging negative terminal 242122, and the power output terminal 24222 includes an output positive terminal 242221 and an output negative terminal 242222. A conductor 245 is connected between the charging negative terminal 242122 and the output negative terminal 242222. A current sensor for detecting current is provided on the second circuit board 25. Further, the current sensor includes a Hall ring 258 with an inner hole. The conductor 245 extends at least partially into the inner hole of the Hall ring 258. Specifically, a conductive post 2451 is also provided on the conductor 245, and the conductive post extends into the inner hole of the Hall ring 258. The Hall ring 258 can monitor the magnitude of the current flowing through the conductor 245, and transmit the current magnitude to the second circuit board 25 and the controller, so as to exchange information with the battery pack 22 based on the magnitude of the current monitored by the Hall ring 258.

[0226] Please refer to Figures 2 to 4 and Figures 10 to 14 simultaneously. In some embodiments, a first cooling fan 2111 capable of dissipating heat from the battery pack 22 is provided on the first side plate 211, and a second cooling fan 2112 capable of dissipating heat from the battery pack 22 is provided on the second side plate 212. Some interfaces in the first interface group 2301 also include a first fan interface 23013 configured to connect to the first cooling fan 2111, and a third terminal group 2521 includes a first fan terminal 25212 configured to be electrically connected 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, and a fourth terminal group 2522 includes a second fan terminal 25222 configured to be electrically connected to the second cooling fan 2112. In some embodiments, multiple first cooling fans 2111 and multiple second cooling fans 2112 are provided on the first side plate 211.

[0227] Please refer to Figures 2 to 4 and Figures 10 to 14 simultaneously. In this application, the first cooling fan 2111 and the second cooling fan 2112 are controlled by the second circuit board 25 to dissipate heat from the battery pack 22. Specifically, the second circuit board 25 can control the speed and forward / reverse rotation of the first cooling fan 2111 and the second cooling fan 2112, and thus execute corresponding instructions according to the heat dissipation requirements of the battery pack 22. For example, when the heat generated by the battery pack 22 is not high, only some of the multiple first cooling fans 2111 and multiple second cooling fans 2112 are used to dissipate heat from the battery pack 22; when the heat generated by the battery pack 22 is high, all of the multiple first cooling fans 2111 and multiple second cooling fans 2112 are started to dissipate heat from the battery pack 22.

[0228] Furthermore, the plurality of first cooling fans 2111 and the plurality of second cooling fans 2112 in this application can simultaneously blow air onto the battery pack 22 or simultaneously exhaust air to the outside, thereby extracting heat from the battery pack 22 to achieve the purpose of cooling the battery pack 22, or some of the plurality of first cooling fans 2111 and the plurality of second cooling fans 2112 can rotate in the forward direction or some can rotate in the reverse direction.

[0229] 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. The fan step-down module 2561 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.

[0230] It should be understood that, in addition to providing power to the power output assembly 5 and / or the walking assembly 6, the first circuit board 24 in this application also provides power to the second circuit board 25. The second circuit board 25 is capable of outputting communication information to the first circuit board 24 to control the external power supply operation of the first circuit board 24.

[0231] Please refer to Figures 2 to 4 and Figures 10 to 14 simultaneously. In some embodiments, a reversing radar 214 and a radar controller 215 electrically connected to the reversing radar 214 are connected to the battery compartment 21. An expansion interface 23014 is also provided on the housing 230. A radar terminal 253 is also provided on the second circuit board 25. The radar terminal 253 can be connected to the radar controller 215 through a wiring harness passing through the expansion interface 23014. The radar controller 215 is connected to the radar through the wiring harness. A radar step-down module 254 is also provided on the second circuit board 25. The second circuit board 25 is electrically connected to the first circuit board 24. It obtains power 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 radar controller 215 and the radar through the radar step-down module 254. The radar controller 215 obtains the information transmitted by the radar, processes the information, and transmits it to the first circuit board 24. Specifically, the reversing radar 214 is used to detect obstacles during vehicle driving or reversing to avoid collisions. The reversing radar is electrically and communicatively connected to the second circuit board, which is also configured to issue a warning when an obstacle is detected within a certain distance range based on the detection results of the reversing radar.

[0232] Please refer to Figures 2 to 4 and Figures 10 to 14 simultaneously. In some embodiments, a taillight 216 is connected to the battery compartment 21, an expansion interface 23014 is provided on the housing 230, and a taillight 216 terminal is provided on the second circuit board 25. The taillight 216 terminal can be connected to the taillight 216 via a wire harness passing through the expansion interface 23014. The second circuit board 25 is also provided with a taillight 216 step-down module. The second circuit board 25 is electrically connected to the first circuit board 24, obtains power 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 taillight 216 to operate through the taillight 216 step-down module. The second circuit board 25 is also configured to control the lighting mode of the taillight 216.

[0233] Please refer to Figures 2 to 4 and Figures 10 to 14 simultaneously. In some embodiments, the opening of the battery compartment 21 is provided with a cover, and a monitoring switch 28 capable of monitoring the opening and closing state of the cover is provided on the cover. An expansion interface 23014 is provided on the housing 230. The circuit board is configured at least as a second circuit board 25 capable of outputting communication information. The second circuit board 25 is provided with a switch terminal 256, and the monitoring switch 28 can be connected to the switch terminal 256 through a wiring harness passing through the expansion interface 23014. When the vehicle is being charged for outdoor operations, since high-voltage charging is often used, when the operator opens the cover, the monitoring switch 28 on the cover detects that the cover is open and transmits the information that the cover is open to the second circuit board 25 in the power management device 23. The second circuit board 25 then controls and reduces the charging current and voltage to prevent injury to the operator.

[0234] This application demonstrates the layered arrangement of the first circuit board 24 and the second circuit board 25, which allows for the installation of more external wiring interfaces on the first and second circuit boards 24 and 25 within a limited space. This enables the addition of functional modules to the first and second circuit boards 24 and 25 as needed, and facilitates information exchange or power transmission through the added interfaces, thereby enriching the functionality of the power management device 23. For example, as mentioned above, the second circuit board 25 can be equipped with a taillight step-down module, a radar step-down module, and a cooling fan step-down module.

[0235] In some embodiments, in the horizontal direction, the power management device 23 is disposed between the first side plate 211 and the second side plate 212, so that the power management device 23 can make relatively balanced electrical and signal connections with the external terminals 213, the first cooling fan 2111, and the second cooling fan 2112 on the first side plate 211 and the second side plate 212 in the horizontal direction.

[0236] Please refer to Figures 1 to 4 and Figures 10 to 14 simultaneously. In some embodiments, the power system 2 of the outdoor work vehicle of this application is at least configured to supply power to 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 installed inside the battery compartment 21 and can discharge to the outdoor work equipment and obtain external electrical energy to charge itself. The power management device 23 is at least configured to control the charging and discharging of the battery pack 22. The power management device 23 includes a housing 230 and at least one circuit board located inside 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 electrical energy transmitted by the charging connector 2112 and to charge the battery pack 22. The power output terminals 24222 are configured to receive power from the battery pack 22 and discharge to the controller. This application sets the terminals for obtaining external power and the terminals for outputting power to the outside independently on the circuit board, so that the wiring harness layout is dispersed and there will be no large number of wiring harnesses concentrated together, which would be inconvenient for external wiring.

[0237] Referring simultaneously to Figures 2 to 4 and Figures 10 to 14, in some embodiments, two circuit boards are disposed within the housing 230, one configured as a first circuit board 24 and the other as a second circuit board 25. The first circuit board 24 is at least configured to mount a charging terminal 24212 and a power output terminal 24222. The second circuit board 25 is at least configured to control the operation of the first circuit board 24, which has charging and discharging states. 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 power output terminal 24222. The first circuit board 24 is controlled by the second circuit board 25, which charges the battery pack 22 by controlling the charging terminal 24212 on the first circuit board 24 and supplies power to the controller by controlling the power output terminal 24222 on the first circuit board 24.

[0238] As shown in Figures 10 to 12, in some embodiments, the first circuit board 24 and the second circuit board 25 are stacked. In the stacking direction, the projection surfaces of the first circuit board 24 and the second circuit board 25 overlap in a region 259. The charging terminal 24212 and the power output terminal 24222 are located outside the overlapping region 259. Placing the charging terminal 24212 and the power output terminal 24222 outside the overlapping region 259 reduces interference from the second circuit board 255 when connecting the wiring harness to the charging terminal 24212 and the power output terminal 24222. Furthermore, when connecting or disconnecting the wiring harness, the operator can directly and quickly insert and remove the connection portion extending into the second receiving cavity, improving assembly efficiency on the production line.

[0239] As shown in Figure 13, in some embodiments, the first circuit board 24 and the second circuit board 25 are stacked, and the conductor 245 is disposed across the second circuit board 25. When the first circuit board 24 and the second circuit board 25 are arranged relatively compactly, the conductor 245 being disposed across the second circuit board 25 can save space.

[0240] As shown in 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 state 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 electrical energy transmitted from the charging connector 2112 can sequentially charge the battery pack 22 through the charging terminal 24212, the capacitor array 244, and the switch array 243. In the discharging state, the electrical energy of the battery pack 22 can sequentially discharge to the controller through the switch array 243, the capacitor array 244, and the power output terminal 24222. Specifically, the circuit board is a first circuit board 24.

[0241] As shown in Figures 10 to 14, in some embodiments, the circuit board is further provided with battery pack terminals connected to the battery pack 22. These battery pack 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 or outputs electrical energy to the switch array 243 through the battery pack terminals. In the discharge state, the battery pack 22 transmits electrical energy to the capacitor array 244 via the switch array 243 through the battery pack terminals. The capacitor array 244 then supplies electrical energy to the walking component 6 and / or the power output component 5. The capacitor array 244 can also supply electrical energy to other electrical components on the outdoor work equipment, or it can supply electrical energy to the second circuit board 25 for power supply. In the charging state, external electrical energy is supplied to the capacitor array 244 through the charging connector 2112. The capacitor array 244 then supplies electrical energy to the battery pack 22 for charging via the switch array 243 and the battery pack terminals. In this embodiment, the battery pack terminals are the first battery pack terminal 24211 and the second battery pack terminal 24221 described above.

[0242] Please refer to Figures 1 to 3 simultaneously. In some embodiments, the outdoor work vehicle of this 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 mounted 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 airflow channel 27 is formed between the power management device 23 and the battery compartment 21. The power management device 23 includes a housing 230 having a cavity and at least one circuit board located in the cavity. The portion of the housing 230 that contacts the airflow channel 27 is a heat dissipation part, and the circuit board is at least partially attached to the heat dissipation part. This arrangement allows the heat generated by the power management device 23 during operation to exchange heat with the external air, thereby achieving the purpose of heat dissipation for the power management device 23.

[0243] Referring also to Figure 8, in some embodiments, the cavity of the housing 230 can be the first receiving cavity 232 in the aforementioned embodiments.

[0244] As shown in Figures 10 to 12, in some embodiments, two circuit boards are disposed within the cavity. One is at least configured as a first circuit board 24 capable of transmitting high-power current, and the other is at least configured as a second circuit board 25 capable of outputting communication information. The first circuit board 24 is attached to a heat dissipation unit. The first circuit board 24 capable of transmitting high-power current in this application is equivalent to the aforementioned first circuit board 24 capable of supplying power to the walking assembly 6 and / or the power output assembly 5. As mentioned above, the first circuit board 24 is equipped with a MOSFET switch 2431 and a capacitor 2441, thus generating a significant amount of heat. Placing the first circuit board 24 close to the first housing 230 facilitates heat dissipation from the circuit board.

[0245] As shown in Figures 7 and 10 to 12, in some embodiments, on outdoor work vehicles, the circuit board assembly includes a first circuit board 24 and a second circuit board 25 arranged in an upper and lower layer, with the first circuit board 24 attached to a heat sink. Specifically, the first circuit board 24 can transmit high-power current, and the second circuit board 25 can transmit control commands to control the operation of the first circuit board 24. Since the first circuit board 24 generates a lot of heat, one of the purposes of designing it independently from the second circuit board 25 is that the high heat generated by the first circuit board 24 will not affect the operation of the second circuit board 25, but will instead be exchanged with the outside environment through the heat sink.

[0246] As shown in Figures 2 and 3, in some embodiments, the power management device 23 is connected to the bottom of the battery compartment 21 via a bracket 26, and an airflow channel 27 is formed between the bottom of the battery compartment 21 and the power management device 23. During the movement of the outdoor work vehicle, airflow passes through the bottom of the battery compartment 21 and carries away the heat generated by the power management device 23. Furthermore, the air within the airflow channel 27 is in a compressed state; once discharged from the airflow channel 27, the compressed air expands instantaneously and absorbs heat, further cooling the heat dissipation unit.

[0247] In some embodiments, the outdoor work vehicle of this 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 mounted in the battery compartment 21 along the opening and can power the outdoor work vehicle. The power management device 23 is configured to control the charging and discharging of the battery pack 22. An airflow channel 27 is formed between the power management device 23 and the battery compartment 21. The power management device 23 includes a housing 230 having a cavity and at least one circuit board located in the cavity. The portion of the housing 230 that contacts the airflow channel 27 is a heat dissipation portion, and the circuit board is disposed near the heat dissipation portion.

[0248] As mentioned above, by setting the circuit board close to the airflow channel 27, and by setting it relatively far away from the airflow channel 27, the heat dissipation effect of the circuit board is also better.

[0249] In some embodiments, on an outdoor work vehicle, the power management device 23 has two circuit boards disposed within its cavity. One circuit board 24 is configured to deliver high-power current, and the other is configured to output communication information. The first circuit board 24 is disposed close to a heat dissipation section. Distributing the first circuit board 24 close to the portion of the first housing 230 facilitates heat dissipation for the first circuit board 24, which generates significant heat.

[0250] As shown in Figure 6, in some embodiments, the heat dissipation part is a first cover plate 234 at the first receiving cavity 232. Furthermore, the first cover plate 234 is made of a metal material.

[0251] As shown in Figures 2, 3, and 6, in some embodiments, this application further includes a power management device 23 with heat dissipation function, which is at least applied to outdoor work vehicles. The power management device 23 includes: a housing body 231, a chamber with an opening, the chamber being configured to accommodate at least one circuit board; a heat-conducting element that can cover the opening of the chamber, and the heat-conducting element can exchange heat generated by the circuit board during operation with an external cold medium. The circuit board dissipates heat through the heat-conducting element, which can dissipate the heat generated by the circuit board during operation in a timely manner. It should be understood that the chamber is the aforementioned first receiving cavity 232, and the heat-conducting element is the aforementioned first cover plate 234.

[0252] As shown in Figures 10 to 12, in some embodiments, one surface of the circuit board is provided with electrical components that can generate heat, and the other surface is attached to a heat-conducting component. This attachment effectively improves the heat dissipation of the circuit board. The electrical components that can generate heat include the aforementioned MOSFET switch 2431 and capacitor 2441, etc.

[0253] As shown in Figure 6, to further improve heat dissipation, in some embodiments, the heat-conducting component is made relatively large, which facilitates heat exchange between the heat-conducting component and the external cooling medium, thereby improving the heat dissipation effect of the circuit board. Specifically, the heat-conducting component is arranged parallel to the circuit board, and along a direction perpendicular to the parallel between the heat-conducting component and the circuit board, the projected area of ​​the heat-conducting component 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-conducting component 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-conducting component to the projected area of ​​the circuit board is 1, 1.2, or 1.5.

[0254] In some embodiments, the power management device 23 of this application has the following dimensions: length of 280mm to 330mm, width of 200mm to 260mm, and height of 45mm to 65mm. In some embodiments, the power management device 23 has the following dimensions: length of 280mm, 310mm, or 330mm, width of 200mm, 230mm, or 260mm, and height of 45mm, 58mm, or 65mm.

[0255] In some embodiments, the outer casing 231 and the heat-conducting element are made of different materials, and the thermal conductivity of the heat-conducting element is greater than that of the outer casing 231. The higher the thermal conductivity, the better the heat dissipation effect.

[0256] In some embodiments, the heat-conducting element is made of a metallic material, and the housing body 231 is made of a non-metallic material.

[0257] This application is not limited to the specific embodiments described above. Those skilled in the art will readily understand that many alternative solutions exist for the outdoor work vehicle without departing from the principles and scope of this application. The scope of protection of this application is determined by the claims.

Claims

1. An outdoor work vehicle, characterized in that, include: The walking assembly is configured to support the movement of the outdoor work vehicle; The power take-off unit is configured to perform outdoor operations; A power system, configured at least to power the outdoor work vehicle, the power system comprising: Battery compartment; Multiple battery packs are assembled within the battery compartment, the multiple battery packs including at least one of a first type battery pack and a second type battery pack, and at least one of the multiple battery packs is detachably mounted to the outdoor work vehicle and can be used to power a handheld power tool after detachment; and, A power management module is configured to uniformly integrate and control the charging and discharging processes of multiple battery packs in the power system. The power management module includes a housing body, which includes a first accommodating cavity and a second accommodating cavity that are isolated from each other. The first accommodating cavity is configured to accommodate at least one circuit board. The circuit board is provided with a connection portion for connecting to an external device. The connection portion extends into the second accommodating cavity and is capable of making electrical and / or signal connections with the external device within the second accommodating cavity.

2. The outdoor work vehicle according to claim 1, characterized in that: The first receiving cavity is provided with two circuit boards, one of which is configured to supply power to the walking component and / or the power output component, and the other is configured to output communication information. The connecting part is configured as a first connecting part on the first circuit board and as a second connecting part on the second circuit board. The first connecting portion can extend from the first receiving cavity to the second receiving cavity; The second connecting portion can extend from the first receiving cavity to the second receiving cavity.

3. The outdoor work vehicle according to claim 2, characterized in that: The outer shell body has a first stepped surface and a second stepped surface formed in the first receiving cavity. The first stepped surface is provided with a first through hole, and the second stepped surface is provided with a second through hole. The first connecting portion can extend from the first receiving cavity to the second receiving cavity through the first through hole; The second connecting portion can extend from the first receiving cavity to the second receiving cavity through the second through hole.

4. The outdoor work vehicle according to claim 3, characterized in that, The first step surface and the second step surface have different heights; The first circuit board and the second circuit board are arranged in an upper and lower layer, and the portion of the first circuit board having the first connecting portion is arranged corresponding to the first step surface; The portion of the second circuit board having the second connection portion is disposed corresponding to the second step surface.

5. The outdoor work vehicle according to claim 3 or 4, characterized in that, The second receiving cavity includes at least a wiring area, which includes a first wiring area and a second wiring area with different heights; The first connecting part can enter the first wiring area through the first through hole from the first stepped surface; The second connecting part can enter the second wiring area through the second through hole from the second stepped surface.

6. The outdoor work vehicle according to claim 5, characterized in that, On the outdoor work vehicle, the height of the first circuit board is higher than the height of the second circuit board, and the height of the first wiring area is higher than the height of the second wiring area.

7. The outdoor work vehicle according to claim 1, characterized in that: There are two second receiving cavities and one first receiving cavity, with the two second receiving cavities respectively located on both sides of the first receiving cavity.

8. The outdoor work vehicle according to claim 1, characterized in that: A first cover plate is provided at the opening of the first receiving cavity, and a second cover plate is provided at the opening of the second receiving cavity.

9. An outdoor work vehicle, characterized in that, include: The walking assembly is configured to support the movement of the outdoor work vehicle; The power take-off unit is configured to perform outdoor operations; A power system, configured at least to power the outdoor work vehicle, the power system comprising: The battery compartment has an opening; The battery pack is configured to be detachably fitted into the battery compartment along the opening; and, A power management device includes a housing body, the housing body including a first receiving cavity and a second receiving cavity isolated from each other, the first receiving cavity being configured to accommodate at least one circuit board, the circuit board having a connection portion for connecting to an external device, the connection portion extending into the second receiving cavity, and the second receiving cavity being at least configured as a wiring area for electrically and / or signally connecting the connection portion located within the second receiving cavity to an external device; The connecting part is disposed 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.

10. The outdoor work vehicle according to claim 9, characterized in that: The mounting surface faces in the opposite direction to the opening of the battery compartment.

11. The outdoor work vehicle according to claim 9 or 10, characterized in that: The power management device is located below the battery compartment, with the opening of the battery compartment facing upwards and the mounting surface facing downwards.

12. The outdoor work vehicle according to claim 9, characterized in that: On the outdoor work vehicle, the opening of the battery compartment faces upward, and the opening of the second receiving cavity faces a different direction than the opening of the battery compartment.

13. The outdoor work vehicle according to claim 12, characterized in that: The power management device is located below the battery compartment, with the opening of the battery compartment facing upwards and the opening of the second receiving cavity facing downwards.

14. The outdoor work vehicle according to claim 9, characterized in that: The opening direction of the first receiving cavity is the same as the opening direction of the battery compartment.

15. The outdoor work vehicle according to claim 9, characterized in that: The power management device is connected to the outdoor work vehicle, and the surface on the outdoor work vehicle that is connected to the power management device is the connection surface. The opening direction of the second receiving cavity is opposite to the connection surface.

16. The outdoor work vehicle according to claim 9, characterized in that: The extension direction of the connecting part is different from the opening direction of the battery compartment.

17. The outdoor work vehicle according to claim 9, characterized in that: The power management device is located below the battery compartment, with the opening of the battery compartment facing upwards and the opening of the second receiving cavity facing downwards.

18. A riding lawnmower, characterized in that, include: The walking assembly is configured to support the walking of the ride-on lawnmower; The power take-off unit is configured to perform outdoor operations; A power system, configured at least to power the ride-on lawnmower, the power system comprising: Battery compartment; The battery pack is assembled inside the battery compartment; A power management device is configured to at least control the charging and discharging of the battery pack; The power management device includes a housing body, which is configured as a first receiving cavity and a second receiving cavity isolated from each other. The first receiving cavity is configured to receive a first circuit board and a second circuit board. The first circuit board is used to provide electrical power to the walking component and / or the power output component. The second circuit board is configured to transmit communication signals. The first circuit board is provided with a first connecting part, and the second circuit board is provided with a second connecting part. Both the first connecting part and the second connecting part can extend from the first receiving cavity to the second receiving cavity. The first connecting part and the second connecting part can respectively make electrical connection and / or signal connection with external devices. The outer shell body has a first step surface and a second step surface with different heights in the first receiving cavity. The first step surface is provided with a first through hole connecting the first receiving cavity and the second receiving cavity, and the second step surface is provided with a second through hole connecting the first receiving cavity and the second receiving cavity. The first connecting part can enter the second receiving cavity through the first through hole, and the second connecting part can enter the second receiving cavity through the second through hole.

19. The riding lawnmower according to claim 18, characterized in that: The second receiving cavity includes at least a wiring area, which includes a first wiring area and a second wiring area, wherein the first connecting portion extends to the first wiring area and the second connecting portion extends to the second wiring area.

20. The riding lawnmower according to claim 19, characterized in that: The height of the first wiring area is higher than the height of the second wiring area.

21. An outdoor work equipment, characterized in that, include: The walking component is configured to support the movement of the outdoor work equipment; The power take-off unit is configured to perform outdoor operations; A power system, configured at least to power the outdoor work equipment, the power system including a battery compartment, a battery pack assembled in the battery compartment, and a power management device disposed outside the battery compartment, the power management device being used at least to control the charging or discharging of the battery pack; The power management device includes a housing body that forms a plurality of mutually isolated receiving cavities.

22. The outdoor work equipment according to claim 21, characterized in that: The plurality of accommodating cavities include a first accommodating cavity and a second accommodating cavity that are isolated from each other. The first accommodating cavity is configured to accommodate at least one circuit board. The circuit board has a connection portion for connecting to the outside. The housing body has a connecting portion that connects the first accommodating cavity and the second accommodating cavity. The connecting portion extends from the connecting portion to the second accommodating cavity. The second accommodating cavity is configured as a wiring area for electrically connecting and / or signal connecting the circuit board assembly extending into the second accommodating cavity to external devices.

23. The outdoor work equipment according to claim 22, characterized in that: The first receiving cavity is configured to receive a first circuit board and a second circuit board, the first circuit board being configured to provide electrical power to the walking assembly and / or the power output assembly, the second circuit board being configured to transmit communication signals, the first circuit board including a first connecting portion, and the second circuit board including a second connecting portion; The connecting portion includes a first through hole and a second through hole, and the wiring area includes a first wiring area and a second wiring area; The first connecting portion can extend from the first receiving cavity through the first through hole to the first wiring area, and the second connecting portion can extend from the first receiving cavity through the second through hole to the second wiring area.

24. The outdoor work equipment according to claim 23, characterized in that: On the outdoor work equipment, the first wiring area and the second wiring area are at different heights.

25. The outdoor work equipment according to claim 24, characterized in that: The first receiving cavity has a first step surface and a second step surface with different heights. The first connecting part is disposed corresponding to the first step surface, and the second connecting part is disposed corresponding to the second step surface.

26. The outdoor work equipment of claim 25, wherein: One end of the first through hole is located in the first wiring area, and the other end is located on the first stepped surface; One end of the second through hole is located in the second wiring area, and the other end is located on the second step surface.

27. The outdoor work apparatus according to claim 21, characterized by: The outer shell body has a first receiving cavity and a second receiving cavity that are isolated from each other. There are two second receiving cavities and one first receiving cavity. One of the two second receiving cavities is located on one side of the first receiving cavity, and the other is located on the other side of the first receiving cavity.

28. Outdoor work equipment according to claim 22 or 27, characterized in that: The opening of the first receiving cavity is provided with a first cover plate, and the opening of the second receiving cavity is provided with a second cover plate.

29. The outdoor work apparatus according to claim 28, characterized by: A first sealing element is provided between the first cover plate and the outer shell body.

30. The outdoor work equipment according to claim 28, characterized in that: A second sealing element is provided between the second cover plate and the outer shell body.

31. An outdoor work vehicle, characterized in that, include: The walking assembly is configured to support the movement of the outdoor work vehicle; The power take-off unit is configured to perform outdoor operations; A power system, configured at least to power the outdoor work vehicle, the power system comprising: Battery compartment; The battery pack is assembled within the battery compartment; and, A power management device includes a housing and a circuit board assembly located within the housing. The circuit board assembly includes at least two circuit boards stacked together, each of the two stacked circuit boards having a connection portion. In the stacking direction, the frontal projection surfaces of the two circuit boards have an overlapping area, and the connection portion on at least one circuit board is at least partially located outside the overlapping area.

32. The outdoor work vehicle according to claim 31, characterized in that: In the stacking direction, the projected area of ​​one of the two circuit boards is larger than that of the other circuit board, and the connection portion on the larger circuit board is located outside the overlapping area.

33. The outdoor work vehicle according to claim 31 or 32, characterized in that: One of the two circuit boards is configured to supply power to the walking assembly and / or the power output assembly, and the other is configured to output communication information. The connection portion is configured on the first circuit board as a first connection portion for connecting to an external device, and the connection portion is configured on the second circuit board as a second connection portion for connecting to an external device; In the stacking direction, the frontal projection surface of the first circuit board and the frontal projection surface of the second circuit board have an overlapping area, and the first connection portion on the first circuit board is at least partially located outside the overlapping area.

34. The outdoor work vehicle according to claim 33, characterized in that: One of the two circuit boards is configured to supply power to the walking assembly and / or the power output assembly, and the other is configured to output communication information. The first circuit board has a first mounting surface for mounting the first connecting part, and the second circuit board has a second mounting surface for mounting the second connecting part. The first mounting surface and the second mounting surface have the same orientation.

35. The outdoor work vehicle according to claim 33, characterized in that: The first connection portion is disposed on the first mounting surface of the first circuit board, and the first connection portion includes a first terminal group and a second terminal group located in different regions; in the stacking direction, the front projection surface of the first circuit board and the front projection surface of the second circuit board have an overlapping area, and the first terminal group and the second terminal group are located on both sides of the overlapping area.

36. The outdoor work vehicle according to claim 35, characterized in that: The battery compartment includes a first side plate and a second side plate arranged opposite to each other, and the battery pack is located between the first side plate and the second side plate. Both the first side plate and the second side plate are provided with external terminals that can be connected to the battery pack. In the horizontal direction, the first terminal group is disposed close to the first side plate, and the second terminal group is disposed close to the second side plate; The first terminal group can be connected to the external terminal on the first side plate, and the second terminal group can be connected to the external terminal on the second side plate.

37. The outdoor work vehicle according to claim 35, characterized in that: The first terminal group and the second terminal group on the first circuit board are located on both sides of the second circuit board and are arranged one in front of the other along the forward direction of the outdoor work vehicle.

38. The outdoor work vehicle according to claim 33, characterized in that: The first connection portion is disposed on the first mounting surface of the first circuit board. The first connection portion includes a first terminal group and a second terminal group located in different areas. The first terminal group and the second terminal group are located on the same side of the overlapping area.

39. The outdoor work vehicle according to claim 31, characterized in that: One of the two circuit boards is configured to supply power to the walking assembly and / or the power output assembly, and the other is configured to output communication information. One surface of the first circuit board is attached to the housing, and the other surface is connected to the second circuit board via a connector.

40. The outdoor work vehicle according to claim 39, characterized in that: The first circuit board is configured to supply power to the second circuit board, and the second circuit board is configured to output communication information to the first circuit board.

41. An outdoor work vehicle, characterized in that, include: The walking assembly is configured to support the movement of the outdoor work vehicle; The power take-off unit is configured to perform outdoor operations; A power system, configured at least to power the outdoor work vehicle, the power system comprising: The battery compartment includes a first side plate and a second side plate disposed opposite to each other, and both the first side plate and the second side plate are provided with external terminals; A battery pack, assembled within the battery compartment, located between the first side plate and the second side plate, is configured to connect to the external terminal; and... A power management device is configured to control the charging and discharging of the battery pack. The power management device includes a housing and at least one circuit board located within the housing, and the circuit board is provided with a connection portion. In the horizontal direction, a portion of the connecting part is disposed near the first side plate, and another portion is disposed near the second side plate.

42. The outdoor work vehicle according to claim 41, characterized in that: The housing contains two circuit boards, one of which is at least configured to supply power to the walking assembly and / or the power output assembly, and the other is at least configured to output communication information. The connecting portion is configured as a first connecting portion on the first circuit board. In the horizontal direction, the first connecting portion includes a first terminal group disposed near the first side plate and a second terminal group disposed near the second side plate. The connection portion is configured as a second connection portion on the second circuit board. In the horizontal direction, the second connection portion includes a third terminal group disposed near the first side plate and a fourth terminal group disposed near the second side plate.

43. The outdoor work vehicle according to claim 42, characterized in that: In the horizontal direction, a first interface group connecting the inside and outside of the housing is provided on the housing near the first side plate, and a second interface group connecting the inside and outside of the housing is provided on the housing near the second side plate.

44. The outdoor work vehicle according to claim 43, characterized in that: The first interface group includes a first battery pack connection interface; Some terminals in the first terminal group are configured as first battery pack power terminals, and the external terminals on the first side plate connected to the battery pack are electrically connected to the first battery pack power terminals through the first battery pack connection interface; some terminals in the third terminal group are configured as first battery pack signal terminals, and the external terminals on the first side plate connected to the battery pack are electrically connected to the first battery pack signal terminals through the first battery pack connection interface.

45. The outdoor work vehicle according to claim 44, characterized in that: The second interface group includes a second battery pack connection interface, and a portion of the second terminal group is configured as a second battery pack power terminal. The external terminal on the second side plate connected to the battery pack is electrically connected to the second battery pack power terminal through the second battery pack connection interface. Part of the fourth terminal group is configured as a second battery pack signal terminal, and the external terminal on the second side plate connected to the battery pack is electrically connected to the second battery pack signal terminal through the second battery pack connection interface.

46. ​​The outdoor work vehicle according to claim 45, characterized in that: The first side plate is also provided with a charging connector for connecting to an external charging gun. The first interface group includes a charging interface; Some terminals in the first terminal group are configured as charging terminals that can be connected to the charging connector, and the charging connector can be connected to the charging terminal via a wire harness passing through the charging interface; The charging terminals are electrically connected to the first battery pack terminal and the second battery pack terminal on the first circuit board, respectively. The third terminal group includes a charge / discharge signal terminal that can be connected to the charging connector, and the charging connector can be connected to the charge / discharge signal terminal via a wire harness passing through the charging interface.

47. The outdoor work vehicle according to claim 46, characterized in that: The outdoor work vehicle also includes a controller that controls the operation of at least the walking assembly and the power output assembly; The second interface group includes a power transmission interface; The second terminal group includes a power output terminal capable of outputting electrical energy, which can be connected to the controller via a wire harness passing through the power delivery interface; The second interface group also includes a signal transmission interface; The fourth terminal group is configured as a signal transmission terminal connected to the controller signal, and the signal transmission terminal can be electrically connected to the controller via a wire harness passing through the signal transmission interface.

48. The outdoor work vehicle according to claim 47, characterized in that: The charging terminal includes a positive charging terminal and a negative charging terminal, and the power output terminal includes a positive output terminal and an negative output terminal. A conductor is connected between the negative charging terminal and the negative output terminal. A Hall ring for detecting current is provided on the second circuit board, and the conductor extends at least partially into the Hall ring.

49. The outdoor work vehicle according to claim 43, characterized in that: The first side plate is provided with a first cooling fan capable of dissipating heat for the battery pack, and the second side plate is provided with a second cooling fan capable of dissipating heat for the battery pack; The interfaces in the first interface group also include a first fan interface configured to be connected to a first cooling fan, and the third terminal group includes a first fan terminal configured to be electrically connected to the first cooling fan. The second interface group further includes a second fan interface configured to be connected to the second cooling fan, and the fourth terminal group includes a second fan terminal configured to be electrically connected to the second cooling fan.

50. The outdoor work vehicle according to claim 41, characterized in that: The housing contains two circuit boards, one of which is at least configured to supply power to the walking assembly and / or the power output assembly, and the other is at least configured to output communication information. The first circuit board can supply power to the second circuit board, and the second circuit board can output communication information to the first circuit board to control the external power supply operation of the first circuit board.

51. The outdoor work vehicle according to claim 41 or 50, characterized in that: The circuit board is configured as at least a second circuit board capable of outputting communication information. The battery compartment is connected to a reversing radar and a radar controller that is electrically connected to the reversing radar. An expansion interface is also provided on the housing. A radar terminal is also provided on the second circuit board. The radar terminal can be connected to the radar controller through a wire harness passing through the expansion interface. The radar controller and the radar are connected through a wire harness.

52. The outdoor work vehicle according to claim 41 or 50, characterized in that: The circuit board is configured as at least a second circuit board capable of outputting communication information. A taillight is connected to the battery compartment. An expansion interface is provided on the housing. A taillight terminal is provided on the second circuit board. The taillight terminal can be connected to the taillight through a wire harness passing through the expansion interface.

53. The outdoor work vehicle according to claim 41 or 50, characterized in that: The battery compartment opening is provided with a compartment cover, and the compartment cover is provided with a monitoring switch that can monitor the opening and closing status of the compartment cover; An expansion interface is provided on the housing; The circuit board is configured as at least a second circuit board capable of outputting communication information. The second circuit board is provided with a switch terminal, and the monitoring switch can be connected to the switch terminal via a wire harness passing through the expansion interface.

54. The outdoor work vehicle according to claim 41, characterized in that: In the horizontal direction, the power management device is disposed between the first side plate and the second side plate.

55. The outdoor work vehicle according to claim 41, characterized in that: Electrical components are provided between the connecting parts of the two parts.

56. An outdoor work vehicle, characterized in that, include: The walking assembly is configured to support the movement of the outdoor work vehicle; The power take-off unit is configured to perform outdoor operations; The charging connector is configured to receive external electrical energy. The controller is configured at least to control the operation of the walking component and / or the power output component; A power system, configured at least to power the outdoor work vehicle, the power system comprising: Battery compartment; A battery pack, assembled within the battery compartment, is capable of discharging power to the outdoor work equipment and charging itself using external electrical energy; and, A power management device is configured to control the charging and discharging of the battery pack. The power management device includes a housing and at least one circuit board located within the housing. The circuit board is provided with independently disposed charging terminals and power output terminals. The charging terminal is configured to receive electrical energy transmitted by the charging connector and to charge the battery pack, and the power output terminal is configured to receive power from the battery pack and discharge to the controller.

57. The outdoor work vehicle according to claim 56, characterized in that: The housing contains two circuit boards, one of which is configured as the first circuit board and the other as the second circuit board. The first circuit board is configured to at least mount the charging terminal and the power output terminal; The second circuit board is configured at least to control the operation of the first circuit board, the first circuit board having a charging state and a discharging state; During charging, the second circuit board can control the first circuit board to supply power to the battery pack through the charging terminal; In the discharge state, the second circuit board can control the first circuit board to supply power to the controller through the power output terminal.

58. The outdoor work vehicle according to claim 57, characterized in that: The first circuit board and the second circuit board are stacked. In the stacking direction, the projection surface of the first circuit board and the projection surface of the second circuit board have an overlapping area. The charging terminal and the power output terminal are located outside the overlapping area.

59. The outdoor work vehicle according to claim 57, characterized in that: The charging terminal includes a positive charging terminal and a negative charging terminal; The power output terminal includes a positive output terminal and a negative output terminal; A conductor is connected between the charging negative terminal and the output negative terminal, and a current sensor for detecting the magnitude of the current flowing through the conductor is provided on the second circuit board.

60. The outdoor work vehicle according to claim 59, characterized in that: The current sensor includes a Hall ring having an inner hole, and the conductor extends at least partially into the inner hole.

61. The outdoor work vehicle according to claim 59, characterized in that: The first circuit board and the second circuit board are stacked, and the conductor is disposed across the second circuit board.

62. The outdoor work vehicle according to claim 57, characterized in that: The circuit board is provided with a switch array and a capacitor array that are electrically connected to each other. The switch array is configured to control the on and off of the current flowing through it, and the capacitor array is configured to store the charge flowing through it. The capacitor array is electrically connected to the charging terminal and the power output terminal, respectively. During charging, the electrical energy transmitted from the charging connector can sequentially charge the battery pack through the charging terminal, the capacitor array, and the switch array. In the discharge state, the electrical energy of the battery pack can be discharged to the controller sequentially through the switch array, the capacitor array, and the power output terminal.

63. The outdoor work vehicle according to claim 62, characterized in that: The circuit board is also provided with a battery pack power terminal connected to the battery pack. The battery pack power terminal is configured on the circuit board to be electrically connected to the switch array. The battery pack receives electrical energy transmitted by the switch array through the battery pack power terminal or outputs electrical energy to the switch array through the battery pack power terminal.

64. The outdoor work vehicle according to claim 62, characterized in that: The housing is at least partially configured as a heat dissipation section, which is in contact with the circuit board inside the housing and the cooling medium outside the housing.

65. The outdoor work vehicle according to claim 64, characterized in that: The power management device is connected to the battery compartment and forms an airflow channel between the battery compartment and the heat dissipation unit, which is at least partially located within the airflow channel.

66. An outdoor work vehicle, characterized in that, include: The battery compartment has an opening; A battery pack is configured to be fitted into the battery compartment along the opening, the battery pack being capable of powering the outdoor work vehicle; A power management device is configured to control the 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 includes a housing having a chamber and at least one circuit board located inside the chamber. The portion of the housing that contacts the airflow channel is a heat dissipation portion, and the circuit board is at least partially attached to the heat dissipation portion.

67. The outdoor work vehicle according to claim 66, characterized in that: The cavity is provided with two circuit boards, one of which is at least configured to transmit high-power current as a first circuit board, and the other is at least configured to output communication information as a second circuit board. The first circuit board is attached to the heat dissipation part.

68. The outdoor work vehicle according to claim 66, characterized in that: The power management device is connected to the bottom of the battery compartment via a bracket.

69. The outdoor work vehicle according to claim 66, characterized in that: The battery compartment includes a first side plate and a second side plate disposed opposite to each other, and the battery pack is located between the first side plate and the second side plate. Both the first side plate and the second side plate are 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.

70. The outdoor work vehicle according to claim 69, characterized in that: In the horizontal direction, a first connection interface is provided on the housing near the first side plate, and a second connection interface is provided on the housing near the second side plate; The external terminals on the first side plate 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 plate can be electrically connected and / or signal connected to the circuit board assembly through the second connection interface.

71. The outdoor work vehicle according to claim 70, characterized in that: The cavity is provided with two circuit boards, one of which is at least configured to transmit high-power current as a first circuit board, and the other is at least configured to output communication information as a second circuit board. The first circuit board includes a first connection part, and the second circuit board includes a second connection part. The external terminals on the first side plate can be connected to the first connecting part and the second connecting part, respectively; The external terminals on the second side plate can be connected to the first connecting part and the second connecting part, respectively.

72. The outdoor work vehicle according to claim 71, characterized in that: In the horizontal direction, the first connecting part includes a first terminal group disposed near the first side plate and a second terminal group disposed 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 disposed near the first side plate and a fourth terminal group disposed 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.

73. An outdoor work vehicle, characterized in that, include: The battery compartment has an opening; A battery pack is configured to be fitted into the battery compartment along the opening, the battery pack being capable of powering the outdoor work vehicle; A power management device is configured to control the charging or discharging of the battery pack, and an airflow channel is formed between the power management device and the battery compartment; The power management device includes a housing having a chamber and at least one circuit board located inside the chamber. The portion of the housing that contacts the airflow channel is a heat dissipation part, and the circuit board is disposed close to the heat dissipation part.

74. The outdoor work vehicle according to claim 73, characterized in that: On the outdoor work vehicle, two circuit boards are provided in the cavity, one of which is at least configured to deliver a high-power current, and the other is at least configured to output communication information, with the first circuit board located near the heat dissipation unit.

75. The outdoor work vehicle according to claim 73, characterized in that: The power management device is connected to the bottom of the battery compartment via a bracket.

76. A power management device with heat dissipation function, at least applicable to outdoor work vehicles, characterized in that, The power management device includes: The housing body has an open chamber configured to accommodate at least one circuit board; A heat-conducting component is provided to cover the opening of the chamber, and the heat-conducting component can exchange the heat generated by the circuit board during operation with the external cold medium.

77. The power management device with heat dissipation function according to claim 76, characterized in that: One surface of the circuit board is provided with electrical components that can generate heat, and the other surface is attached to the heat-conducting component.

78. The power management device with heat dissipation function according to claim 76, characterized in that: The heat dissipation area of ​​the heat-conducting component is greater than or equal to the heat dissipation area of ​​the circuit board.

79. The power management device with heat dissipation function according to claim 76, characterized in that: The heat-conducting component is arranged parallel to the circuit board, and along a direction perpendicular to the parallel direction between the heat-conducting component and the circuit board, the projected area of ​​the heat-conducting component is greater than or equal to the projected area of ​​the circuit board.

80. The power management device with heat dissipation function according to claim 79, characterized in that: The ratio of the projected area of ​​the heat-conducting component to the projected area of ​​the circuit board is 1 to 1.

5.

81. The power management device with heat dissipation function according to claim 76, characterized in that: The outer shell and the heat-conducting component are made of different materials, and the thermal conductivity of the heat-conducting component is greater than that of the outer shell.

82. The power management device with heat dissipation function according to claim 76 or 81, characterized in that: The heat-conducting component is made of a metallic material, while the outer shell is made of a non-metallic material.

83. The power management device with heat dissipation function according to claim 76, characterized in that: The outdoor work vehicle includes a battery compartment with a battery pack installed, and an airflow channel is formed between the battery compartment and the power management device, with the heat-conducting component located at least partially within the airflow channel.

84. The power management device with heat dissipation function according to claim 83, characterized in that: The power management device is connected to the battery compartment via a bracket.

85. An outdoor work vehicle, characterized in that, include: The walking assembly is configured to support the movement of the outdoor work vehicle; The power take-off unit is configured to perform outdoor operations; A power system, configured at least to power the outdoor work vehicle, the power system comprising: Battery compartment; The battery pack is assembled within the battery compartment; and, The power management device as claimed in any one of claims 76-84, wherein the power management device is configured to control the charging and discharging of the battery pack.

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