Standing type mower

Abstract

The utility model provides a standing type mower which comprises a mowing assembly, a mowing assembly, a power supply assembly, a power supply assembly and a control assembly. The mowing assembly comprises a mowing element used for achieving a mowing function; the supporting part is used for supporting a user; the central control mechanism comprises an operation table for a user to operate; the walking assembly comprises a front walking wheel and a rear walking wheel and is used for supporting the standing type mower to run on the ground plane; the driving assembly comprises a first motor used for driving the walking assembly; the power supply device is arranged to be capable of supplying power to the first motor, and the power supply device comprises a plurality of battery packs; the power supply management system is arranged to be used for managing the power supply device, and the power supply management system comprises a power supply management board; the power management board extends along the first plane; the included angle alpha between the first plane and the plane where the chassis is located is larger than 0 degree and smaller than 90 degrees. By the adoption of the technical scheme, the standing type mower is compact in structure, and the power management board of the standing type mower is obliquely arranged, so that reasonable utilization of space is achieved.

Description

Technical Field

[0001] The present application relates to the field of garden tools, and in particular to a stand-up lawn mower. Background Art

[0002] A lawn mower is also called a weed cutter, lawn mower, lawn trimmer, etc. A lawn mower is a mechanical tool used to mow lawns, vegetation, etc. It is composed of a cutter disc, a power source, a running wheel, a running mechanism, a blade, an armrest, and a control part. In the related art, a lawn mower usually uses an electric motor to provide a power source, and converts the output of a larger torque through a reduction gearbox to meet the work needs. However, the motor is powered by a battery pack. In order to meet the working needs of the lawn mower, the selected battery pack is heavier. Since the motor, the reduction gearbox, and the standing position of a person occupy a large space, the installation position that can be selected for the battery pack is relatively limited, and the problem of the center of gravity shifting forward is prone to occur, thereby affecting the flexibility of steering and stability when climbing.

[0003] This section provides background information related to the present application which is not necessarily prior art. Utility Model Content

[0004] One object of the present application is to solve or at least alleviate part or all of the above problems. To this end, one object of the present application is to provide a compact stand-up lawn mower, which can reasonably utilize space by tilting the power management board of the stand-up lawn mower.

[0005] To achieve the above objectives, the present application adopts the following technical solutions: a stand-up lawn mower, comprising: a mowing assembly, comprising a mowing element for realizing a mowing function; a support portion, for supporting a user; a central control mechanism, comprising an operating table for a user to operate to control the stand-up lawn mower; a walking assembly, comprising a front walking wheel and a rear walking wheel, for supporting the stand-up lawn mower to travel on a ground plane; a driving assembly, comprising a first motor for driving the walking assembly; a power supply device, configured to supply power to the first motor, the power supply device comprising a plurality of battery packs; a power management system, configured to manage the power supply device, the power management system comprising a power management board; the power management board extends along a first plane; an angle α between the first plane and the plane where the chassis is located is greater than 0 and less than 90°.

[0006] In some embodiments, an angle α between the power management board and the plane where the chassis is located is greater than or equal to 10° and less than or equal to 70°.

[0007] In some embodiments, in the front-to-rear direction, a distance L3 between the power management board and the rear wheel axle of the rear running wheel is greater than or equal to 0 and less than or equal to 250 mm.

[0008] In some embodiments, a control box is also included for installing a power management board, and the control box is installed near the central control mechanism.

[0009] In some embodiments, a driving circuit board for driving the first motor is also included, and the driving circuit board is located outside the control box.

[0010] In some embodiments, the controller further comprises a second driving circuit board for driving the mowing assembly, wherein the second driving circuit board is disposed in the controller.

[0011] In some embodiments, a second power supply device is further included, the second power supply device includes at least two second battery packs, and in the left-right direction, the power management board is disposed between the two second battery packs.

[0012] In some embodiments, the second battery pack is removably mounted to the stand-on lawn mower.

[0013] In some embodiments, the battery pack has lithium iron phosphate cells; and the second battery pack has ternary lithium cells.

[0014] A stand-up lawn mower comprises: a mowing assembly comprising a mowing element for realizing a mowing function; a support portion for supporting a user; a central control mechanism comprising an operating table for the user to operate to control the stand-up lawn mower; a walking assembly comprising a front walking wheel and a rear walking wheel; a driving assembly comprising at least a first motor for driving the walking assembly; a power supply device configured to at least supply power to the first motor, the power supply device comprising a plurality of battery packs; and a power management system configured to manage the power supply device, the power management system comprising a power management board; in the front-to-rear direction, a distance L3 between the power management board and the rear wheel axle of the rear walking wheel is greater than or equal to 0 and less than or equal to 300 mm.

[0015] In some embodiments, the power management board extends in a horizontal direction or a vertical direction or is tilted.

[0016] In some embodiments, a control box and a driving circuit board disposed in the control box are also included, and the power management board is configured to be disposed in the control box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of a stand-on lawn mower according to an embodiment of the present application;

[0018] Figure 2 is a left side view of a stand-on lawn mower according to an embodiment of the present application;

[0019] Figure 3 is a bottom view of a stand-on lawn mower according to an embodiment of the present application;

[0020] Figure 4is a schematic diagram of the installation position of a power supply device of a stand-on lawn mower according to an embodiment of the present application;

[0021] Figure 5a yes Figure 4 A schematic diagram of the arrangement of a battery pack of an embodiment of a power supply device in FIG.

[0022] Figure 5b yes Figure 4 A schematic diagram of the arrangement of a battery pack of another embodiment of a power supply device;

[0023] Figure 6 is a right side view of a stand-on lawn mower according to an embodiment of the present application;

[0024] Figure 7 is a top view of a stand-on lawn mower according to another embodiment of the present application;

[0025] Figure 8 is a schematic diagram of a power management system for a stand-on lawn mower according to an embodiment of the present application;

[0026] Fig. 9 yes Figure 8 A schematic diagram of a tilted configuration of a power management board of a power management system in FIG.

[0027] Fig.10 is a schematic diagram of a power platform of a first battery pack of the present application;

[0028] Fig.11 is a perspective view of a stand-on lawn mower according to another embodiment of the present application;

[0029] Fig.12 yes Fig.11 A perspective view of a stand-on lawn mower from another perspective. DETAILED DESCRIPTION

[0030] Before any embodiments of the disclosure are explained in detail, it is to be understood that the disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0031] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0032] In this application, the term "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0033] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connection or coupling, and may include electrical connection or coupling.

[0034] One of ordinary skill in the art will understand that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context (e.g., the term includes at least the degree of error associated with the measurement of a particular value, the tolerance associated with a particular value (e.g., manufacturing, assembly, use), etc.). Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Of course, numerical values ​​that do not employ relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) based on the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0035] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, or multiple parts, or can also be performed by one part. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts to perform the same function.

[0036] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limitations on the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. do not represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front and lower back, etc.

[0037] In this application, the terms "controller", "processor", "central processing unit", "CPU", and "MCU" are interchangeable. When a unit "controller", "processor", "central processing unit", "CPU", or "MCU" is used to perform a specific function, unless otherwise specified, these functions can be performed by a single unit or multiple units.

[0038] In the present application, the terms “device”, “module” or “unit” may be implemented in the form of hardware or software to achieve specific functions.

[0039] In this application, the terms "calculate", "judge", "control", "determine", "identify", etc. refer to the operations and processes of a computer system or similar electronic computing device (e.g., controller, processor, etc.).

[0040] Figure 1 The stand-up lawn mower 100 is shown as a specific embodiment of the present application. The stand-up lawn mower 100 can be operated by a user standing on it to mow lawns and other vegetation, etc. In this specification, the directions of front, rear, left, right, up and down are described as Figure 1 Specifically, when the user is supported on the stand-on lawn mower 100 located on the ground, the direction the user is facing is defined as the front, the direction facing away is defined as the back, the direction on the left hand side is defined as the left, the direction on the right hand side is defined as the right, the direction close to the ground is defined as the bottom, and the direction away from the ground is defined as the top.

[0041] See also Figures 1 to 4 As shown, the stand-on lawn mower 100 includes a frame 10 , a mowing assembly 20 mounted on the frame 10 , a traveling assembly 30 , a driving assembly, a central control mechanism 50 , a power supply device 60 and a supporting mechanism 70 .

[0042] The travel assembly 30 includes a pair of front travel wheels 31 and a pair of rear travel wheels 32. Optionally, the front travel wheels 31 are configured as universal wheels, and the drive assembly drives the rear travel wheels 32 to rotate. The front travel wheels 31 and the rear travel wheels 32 rotate around the front wheel axis 31a and the rear wheel axis 32a, respectively. In other embodiments, the rear travel wheels 32 may also be configured as universal wheels, in which case the drive assembly 40 drives the front travel wheels 31 to rotate.

[0043] The mowing assembly 20 includes a mowing element 21 for realizing a mowing function. Optionally, the mowing assembly 20 is installed at the bottom of the frame 10 and is located between the front running wheel 31 and the rear running wheel 32.

[0044] The driving assembly is used to drive the traveling assembly 30 and the mowing assembly 20 to work. Optionally, the driving assembly includes a first motor 41 for driving the traveling assembly 30 to operate and a second motor 42 for driving the mowing assembly 20 to operate. In some embodiments, the number of the first motor 41 or the second motor 42 is one or more. In some embodiments, the first motor can be a hub motor or a wheel side motor.

[0045] The central control mechanism 50 includes an operating platform 51 for a user to operate to control the stand-on lawn mower 100 .

[0046] The support mechanism 70 includes a support portion for supporting the user. Optionally, the support portion is specifically a standing portion 71. The standing portion 71 is disposed at the rear of the frame 10, connected to the frame 10, and located between the two rear running wheels 32. In some embodiments, in the left-right direction, the standing portion 71 is partially located between the two rear running wheels 32. In the front-to-back direction, the standing portion 71 is partially located between the front wheel axis 31a of the front running wheel 31 and the rear wheel axis 32a of the rear running wheel 32. In this way, when the user stands on the standing portion 71, the center of gravity of the human body is located on the rear wheel axis 32a of the rear running wheel 32 of the standing lawn mower 100. The standing portion 71 moves forward, and the center of gravity of the human body also moves forward accordingly, which makes it safer and less likely to overturn whether climbing a slope or passing through a pothole.

[0047] The power supply device 60 includes a plurality of battery packs 61 for supplying power to at least the first motor 41 or the second motor 42. At least one of the plurality of battery packs 61 is detachably mounted to a joint of the stand-up mower 100. In some embodiments, the joint includes a battery compartment 62. Optionally, the plurality of battery packs 61 are configured to be detachable from the stand-up mower 100 to supply power to the power tool or the all-terrain vehicle. Specifically, Fig.10The power platform of the battery pack is shown. It is understood that the battery pack can power the power tool 200 on the power platform. Optionally, the power tool 200 can be a garden tool, such as a lawn mower, a hair dryer, a push lawn mower, a riding lawn mower, etc. The power tool 200 can also be a handheld power tool, such as a lawn mower, a snow blower, a push lawn mower, etc. The power tool 200 can be a push power tool, such as a push snow blower, a push lawn mower, etc. The power tool can also be a drill tool, a saw tool, an electric garden tool, etc.

[0048] In some embodiments, the number of battery compartments 62 is one, and multiple battery packs 61 are arranged in one battery compartment 62. Optionally, the number of battery compartments 62 is the same as the number of battery packs 61, and each battery pack 61 is arranged in a corresponding battery compartment 62. Optionally, the number of battery compartments 62 and battery packs 61 are both multiple, and the number of battery packs 61 arranged in at least one of the multiple battery compartments 62 is greater than or equal to 2. In some embodiments, the battery compartment 62 is provided with an input terminal for transmitting electrical signals or communication signals. In some embodiments, the battery compartment 62 is also provided with a locking structure for locking the battery pack arranged therein in the battery compartment 62 to avoid poor contact between the battery pack 61 and the battery compartment 62, thereby affecting the normal operation of the vehicle.

[0049] In some embodiments, a socket is provided in the battery compartment 62, and the battery pack 61 includes a plug that matches the socket. After the battery pack 61 is placed in the battery compartment 62, the plug is inserted into the socket to achieve electrical connection between the battery pack 61 and the battery compartment 62. In some embodiments, a plurality of through holes are provided on the surface of the battery compartment 62, so that the weight of the battery compartment 62 is reduced while ensuring the strength of the battery compartment 62, thereby reducing the weight of the entire device and enhancing the heat dissipation efficiency of the battery pack.

[0050] In some embodiments, see Figure 4 As shown, in the front-to-back direction, the power supply device 60 is arranged in front of the first motor 41. In some embodiments, in the front-to-back direction, the power supply device 60 is arranged between the front wheel axis 31a and the rear wheel axis 32a. When the first motor 41 is a hub motor, in the left-right direction, the power supply device 60 can be completely arranged in the middle of the two hub motors. Optionally, the power supply device 60 includes a plurality of battery packs 61. Optionally, the plurality of battery packs can also be arranged in other ways. Figure 5a As shown, multiple battery packs 61 are arranged in a row in the front-to-back direction. When multiple battery packs 61 are arranged in a row in the front-to-back direction, the size of the battery pack 61 in the left-right direction is greater than the size of the battery pack 61 in the front-to-back direction. Figure 5bAs shown, multiple battery packs 61 are arranged in a row in the left-right direction. Specifically, when multiple battery packs 61 are arranged in a row in the left-right direction, the size of the battery pack 61 in the left-right direction is smaller than the size of the battery pack 61 in the front-rear direction.

[0051] In some embodiments, Figure 2 As shown, in the front-to-back direction, the distance L1 between the power supply device 60 and the front wheel axis 31a is greater than or equal to 80 mm and less than or equal to 400 mm. In some embodiments, the distance L1 between the power supply device 60 and the front wheel axis 31a is greater than or equal to 100 mm and less than or equal to 300 mm. In some embodiments, the distance L1 between the power supply device 60 and the front wheel axis 31a is greater than or equal to 150 mm and less than or equal to 250 mm. In some embodiments, the distance L1 between the power supply device 60 and the front wheel axis 31a can also be 80 mm, 90 mm, 100 mm, 120 mm, 140 mm, 160 mm, 180 mm, 200 mm, 240 mm, 280 mm, 320 mm, 360 mm, 400 mm.

[0052] In some embodiments, Figure 2 As shown, in the front-to-back direction, the distance L2 between the power supply device 60 and the rear wheel axis 32a is greater than or equal to 200 mm and less than or equal to 520 mm. In some embodiments, in the front-to-back direction, the distance L2 between the power supply device 60 and the rear wheel axis 32a is greater than or equal to 260 mm and less than or equal to 500 mm. In some embodiments, in the front-to-back direction, the distance L2 between the power supply device 60 and the rear wheel axis 32a is greater than or equal to 300 mm and less than or equal to 400 mm. In some embodiments, in the front-to-back direction, the distance L2 between the power supply device 60 and the rear wheel axis 32a is greater than or equal to 320 mm and less than or equal to 360 mm.

[0053] In some embodiments, the ratio of the distance L1 between the power supply device 60 and the front wheel axis 31a of the front running wheel 31 to the distance L2 between the power supply device 60 and the rear wheel axis 32a of the rear running wheel 32 is greater than or equal to 0.15 and less than or equal to 2. In some embodiments, the ratio of the distance L1 between the power supply device 60 and the front wheel axis 31a of the front running wheel 31 to the distance L2 between the power supply device 60 and the rear wheel axis 32a of the rear running wheel 32 is greater than or equal to 0.5 and less than or equal to 1.5. In some embodiments, the above ratios may also include 0.15, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0.

[0054] In some embodiments, the stand-on lawn mower 100 has a support plane 101 for supporting the stand-on lawn mower 100 on the ground. The distance H between the power supply unit 60 and the support plane 101 is less than or equal to 600 mm. In some embodiments, the distance H between the power supply unit 60 and the support plane 101 is less than or equal to 500 mm. In some embodiments, the distance H between the power supply unit 60 and the support plane 101 is less than or equal to 400 mm. In some embodiments, the projection of the power supply unit 60 in the support plane 101 at least partially overlaps with the projection of the chassis in the support plane 101. In this way, by reasonably setting the position of the battery pack sinking and the center of gravity of the battery pack, the stability of the vehicle during travel is improved.

[0055] In some embodiments, see Figure 6 As shown, the distance L4 between the center of gravity G of the stand-on lawn mower 100 and the rear wheel axis 32a is greater than or equal to 260 mm and less than or equal to 510 mm. In some embodiments, the distance L4 between the center of gravity G of the stand-on lawn mower 100 and the rear wheel axis 32a is greater than or equal to 750 mm and less than or equal to 1000 mm. Optionally, the distance L4 between the center of gravity G of the stand-on lawn mower 100 and the rear wheel axis 32a is greater than or equal to 800 mm and less than or equal to 900 mm. Optionally, the distance L4 between the center of gravity G of the stand-on lawn mower 100 and the rear wheel axis 32a can also be 270 mm, 290 mm, 310 mm, 330 mm, 350 mm, 370 mm, 410 mm, 430 mm, 460 mm, 480 mm, 500 mm.

[0056] In some embodiments, the distance from the center of gravity G to the support plane 101 is greater than or equal to 280 mm and less than or equal to 350 mm. Optionally, the distance from the center of gravity G to the support plane 101 can also be 290 mm, 300 mm, 310 mm, 320 mm, 330 mm, or 340 mm.

[0057] In some embodiments, see Figure 6 As shown, the overall length L of the stand-on lawn mower 100 is greater than or equal to 1500 mm and less than or equal to 1800 mm. Optionally, the overall length L of the stand-on lawn mower 100 is greater than or equal to 1600 mm and less than or equal to 1700 mm. Optionally, the overall length L of the stand-on lawn mower 100 can also be 1550 mm, 1650 mm, or 1750 mm.

[0058] In some embodiments, the volume of at least one battery pack in the power supply device 60 is greater than or equal to 0.02 cubic meters and less than or equal to 0.03 cubic meters. Optionally, the volume of at least one battery pack in the power supply device 60 is greater than or equal to 0.021 cubic meters and less than or equal to 0.025 cubic meters. In some embodiments, the volume of at least one battery pack in the power supply device 60 is greater than or equal to 0.215 cubic meters and less than or equal to 0.25 cubic meters.

[0059] In some embodiments, the weight of at least one battery pack in the power supply device 60 is greater than or equal to 17Kg and less than or equal to 20Kg. Optionally, the weight of at least one battery pack in the power supply device 60 is greater than or equal to 18Kg and less than or equal to 19Kg. Optionally, the weight of at least one battery pack in the power supply device 60 can also be 17.5Kg, 18.5Kg, or 19.5Kg.

[0060] In some embodiments, the nominal voltage of at least one battery pack in the power supply device 60 is greater than 40 V and equal to or less than 80 V. Optionally, the nominal voltage of the power supply device 60 may be 56V or 64V.

[0061] In some embodiments, the total capacity of the power supply device 60 is greater than or equal to 27Ah and less than or equal to 400Ah. In some embodiments, the power supply device 60 includes a plurality of battery packs 61, and the capacity of at least one of the plurality of battery packs 61 is greater than or equal to 27Ah and less than or equal to 90Ah. Optionally, the capacity of the battery pack 61 is greater than or equal to 30Ah and less than or equal to 80Ah. Optionally, the capacity of the battery pack 61 is greater than or equal to 40Ah and less than or equal to 70Ah. Optionally, the capacity of the battery pack 61 is greater than or equal to 50Ah and less than or equal to 60Ah.

[0062] In some embodiments, the number of battery packs 61 is greater than or equal to 1 and less than or equal to 4. Optionally, the number of battery packs 61 is greater than or equal to 2 and less than or equal to 3. In some embodiments, the battery pack 61 includes lithium iron phosphate cells. In some embodiments, the types of battery packs include but are not limited to LFP, sodium ion, solid / semi-solid, 21700 battery, 40135 battery, 4680 battery, 46950 battery, 46120 battery, 35184 battery.

[0063] Fig.11 and Fig.12Another type of stand-up lawn mower 100a is shown. Compared with the above-mentioned stand-up lawn mower 100, the power supply device 60c of the stand-up lawn mower 100a in this embodiment includes three battery packs 61c. The battery pack 61c in this embodiment can be equivalent to the battery pack 61a in the above-mentioned embodiment, and can be the battery pack 61b in the above-mentioned embodiment. The stand-up lawn mower 100a in this embodiment also includes a mowing component 20a, a walking component 30c, a central control mechanism 50a, a power supply device 60c and a support mechanism 70a. The walking component 30c includes two front wheels 31c and two rear wheels 32c. In this embodiment, the axle spacing L6 of the front wheels 31c and the rear wheels 32c is greater than or equal to 1000mm and less than or equal to 1120mm. Optionally, the axle spacing L6 can also be 1083mm. In the front-to-back direction, the length L of the stand-up lawn mower 100a is greater than or equal to 1600mm and less than or equal to 1800mm. Optionally, the length L of the stand-on lawn mower 100a may also be 1700 mm. The height L7 of the stand-on lawn mower 100a is greater than or equal to 1100 mm and less than or equal to 1200 mm. Optionally, the height L7 of the stand-on lawn mower 100a may be 1175 mm. In the width direction, the maximum width W between the two rear wheels 32a is greater than or equal to 900 mm and less than or equal to 1000 mm. Optionally, the maximum width W between the two rear wheels 32a may be 940 mm.

[0064] See also Figure 7 As shown, unlike the above-mentioned embodiment, the power supply device in the stand-on lawn mower 100 includes a first power supply device 60a and a second power supply device 60b. It should be noted that the first power supply device 60a in this embodiment can be understood as the power supply device 60 in the above-mentioned embodiment. The difference between this embodiment and the above-mentioned embodiment is that a second power supply device 60b different from the power supply device 60 is also provided. The relevant information of the first power supply device 60a in this embodiment is similar to that of the power supply device 60 in the above-mentioned embodiment, and the frame 10, the mowing assembly 20 mounted on the frame 10, the walking assembly 30, the driving assembly 40, the central control mechanism 50 and the supporting mechanism 70 are also basically similar, and will not be repeated in this embodiment. Next, the specific settings related to the first power supply device 60a and the second power supply device 60b in this embodiment are introduced.

[0065] The first power supply device 60a is configured to at least supply power to the first motor 41. The first power supply device 60a includes a first battery pack 61a disposed at a first position. The second power supply device 60b includes a second battery pack 61b disposed at a second position. The capacity of the first battery pack 61a is greater than the capacity of the second battery pack 61b. Optionally, the first battery pack 61a is configured to at least supply power to the first motor 41. The second battery pack 61b is configured to be removable to supply power to another electric tool. The above-mentioned electric tool may be a garden tool, such as a lawn mower, a hair dryer, a push lawn mower, a riding lawn mower, etc. The electric tool may also be a handheld electric tool, such as a lawn mower, a snow blower, a push lawn mower, etc. The electric tool may be a push electric tool, such as a push snow blower, a push lawn mower, etc. The electric tool may also be a drill tool, a saw tool, an electric garden tool, etc.

[0066] Optionally, in the front-to-back direction, the first battery pack 61a is arranged in front of the second battery pack 61b. The second battery pack 61b is installed near the central control mechanism 50. Specifically, in the front-to-back direction, the distance L5 between the first battery pack 61a and the second battery pack 61b is less than or equal to 1000mm. Optionally, in the front-to-back direction, the distance L5 between the first battery pack 61a and the second battery pack 61b is greater than or equal to 70mm and less than or equal to 500mm. In some embodiments, in the front-to-back direction, the distance L5 between the first battery pack 61a and the second battery pack 61b is greater than or equal to 77mm and less than or equal to 477mm. In some embodiments, in the front-to-back direction, the distance L5 between the first battery pack 61a and the second battery pack 61b is greater than or equal to 100mm and less than or equal to 400mm. In some embodiments, in the front-to-back direction, the distance L5 between the first battery pack 61a and the second battery pack 61b can also be 0mm, which can be understood as the first battery pack and the second battery pack at least partially overlap in the front-to-back direction. In some embodiments, in the front-to-back direction, the distance L5 between the first battery pack 61 a and the second battery pack 61 b ​​may also be 200 mm, 300 mm, 400 mm, 500 mm, 600 mm, 700 mm, 800 mm, or 900 mm.

[0067] Optionally, the second power supply device 60b includes a plurality of second battery packs 61b. Specifically, the number of the second battery packs 61b is less than or equal to 4. Optionally, the number of the second battery packs 61b is less than or equal to 2. The capacity of the second battery pack 61b is greater than or equal to 5Ah and less than or equal to 12Ah. The volume of the second battery pack 61b is greater than or equal to 2350 cubic centimeters and less than or equal to 3000 cubic centimeters. Optionally, the volume of the second battery pack 61b is greater than or equal to 2000 cubic centimeters and less than or equal to 2800 cubic centimeters.

[0068] Optionally, the plurality of second battery packs 61b are separated from each other. In some embodiments, the plurality of second battery packs 61b are disposed on both sides of the operating table 51. In some embodiments, the second battery pack 61b is disposed on the lower side of the operating table 51. In some embodiments, in the front-to-back direction, the first battery pack 61a is disposed in front of the second battery pack 61b. In some embodiments, in the front-to-back direction, the second battery pack 61b is disposed in front of the first battery pack 61a. In some embodiments, in the up-down direction, the lowest point of the first power supply unit 60a is not higher than the lowest point of the second power supply unit 60b.

[0069] Optionally, the first power supply device 60a can charge the second power supply device 60b. In other embodiments, the second power supply device 60b can charge the first power supply device 60a. The first battery pack 61a includes a lithium iron phosphate battery cell. The second battery pack 61b includes a ternary lithium battery cell.

[0070] See also Figure 8 and Fig. 9 As shown, the stand-on lawn mower 100 further includes a power management system. The power management system is configured to manage the power supply device. The power management system includes a power management board 81. Optionally, the power management board 81 is electrically connected to the power supply device and includes at least one controller for controlling the charging or discharging process of multiple battery packs in the power supply device.

[0071] Optionally, in the front-to-back direction, the power management board 81 is arranged between the support part and the front running wheel 31. Optionally, in the front-to-back direction, the distance L3 between the power management board 81 and the rear wheel axle is greater than or equal to 0 and less than or equal to 300 mm. Optionally, the distance L3 between the power management board 81 and the rear wheel axle can also be 50 mm, 100 mm, 150 mm, 200 mm, 290 mm. It should be noted that the distance L3 between the power management board 81 and the rear wheel axle refers to the distance from the point where the power management board 81 is closest to the rear wheel axle in the front-to-back direction to the rear wheel axle.

[0072] Optionally, at least part of the power management board 81 is disposed between the support portion and the power supply device 60 in the front-rear direction. When the power supply device further includes a second power supply device 60b having at least two second battery packs, the power management board 81 is located between the two second battery packs in the left-right direction.

[0073] Optionally, the power management board 81 is installed at the central control mechanism. In some embodiments, the power management board 81 extends in the horizontal direction or the vertical direction. In some embodiments, the power management board 81 is tilted. Specifically, the power management board 81 extends along the first plane 102, and the angle α between the first plane 102 and the second plane 103 where the chassis is located is greater than 0° and less than 90°. Optionally, the angle α between the first plane 102 and the second plane 103 where the chassis is located is greater than or equal to 10° and less than or equal to 70°. Optionally, the angle α between the first plane 102 and the second plane 103 where the chassis is located is greater than or equal to 15° and less than or equal to 55°. Optionally, the angle α between the first plane 102 and the second plane 103 where the chassis is located is greater than or equal to 30° and less than or equal to 45°. Optionally, the angle α between the first plane 102 and the second plane 103 where the chassis is located can also be equal to 10°, 20°, 30°, 40°, 50°, 60°, 80°, 90°. The second plane 103 where the chassis is located can be understood as a plane parallel to the ground plane and the plane supporting the wheels. The chassis can be understood as a frame of the stand-up lawn mower in the present application that extends in the front-rear direction.

[0074] Optionally, the stand-on lawn mower 100 further includes a control mechanism 80, and the control mechanism 80 includes a control box 82. The control box 82 is used to install the power management board 81. Specifically, the control box 82 is installed near the central control mechanism 50. The drive assembly 40 also includes a drive circuit board for controlling the first motor 41 and a second drive circuit board for driving the second motor 42. In some embodiments, the drive circuit board, the second drive circuit board, and the power management board 81 are all arranged in the control box 82. In some embodiments, the power management board 81 is arranged in the control box 82, and the drive circuit board is arranged outside the control box 82. In some embodiments, the power management board 81 is arranged in the control box 82, and the second drive circuit board is arranged outside the control box 82.

[0075] In some embodiments, the control mechanism 80 includes a power management board for controlling the battery pack, a drive circuit board for controlling the walking motor and the mowing motor, a power conversion circuit for converting the power supply voltage, or other control circuits for controlling the operation of the stand-up mower. In this way, the electric control mechanism of the stand-up mower in this embodiment is basically concentrated near the central control mechanism, which is easy to arrange the cables. Optionally, the ratio of the width in the left-right direction to the width of the frame 10 in the left-right direction is greater than or equal to and less than or equal to 0.6 and less than or equal to 1. The ratio of the width in the left-right direction to the width of the frame 10 in the left-right direction is greater than or equal to and less than or equal to 0.7 and less than or equal to 0.8.

[0076] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the above embodiments do not limit the present application in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present application.

Claims

1. A stand-on lawn mower, comprising: A mowing assembly, comprising a mowing element for achieving a mowing function; A support portion, used to support a user; A central control mechanism, comprising an operating platform for a user to operate to control the stand-on lawn mower; A travel assembly, including front travel wheels and rear travel wheels, for supporting the stand-on lawn mower to travel on a ground plane; A driving assembly, comprising a first motor for driving the walking assembly; A power supply device, configured to supply power to the first motor, the power supply device comprising a plurality of battery packs; A power management system, configured to manage the power supply device, the power management system comprising a power management board; It is characterized in that At least a portion of the power management board is disposed between the support portion and the power supply device in the front-rear direction.

2. The stand-on lawn mower according to claim 1, characterized in that: In the front-to-back direction, a distance L3 between the power management board and the rear wheel axle of the rear running wheel is greater than or equal to 0 and less than or equal to 250 mm.

3. The stand-on lawn mower according to claim 1, characterized in that: It also includes a control box for installing the power management board, and the control box is installed near the central control mechanism.

4. The stand-on lawn mower according to claim 3, characterized in that: It also includes a driving circuit board for driving the first motor, and the driving circuit board is located outside the control box.

5. The stand-on lawn mower according to claim 3, characterized in that: Also included is a second driving circuit board for driving the mowing assembly, wherein the second driving circuit board is disposed within the controller.

6. The stand-on lawn mower according to claim 1, characterized in that: It also includes a second power supply device, which includes at least two second battery packs. In the left-right direction, the power management board is arranged between the two second battery packs.

7. The stand-on lawn mower according to claim 6, characterized in that The second battery pack is detachably mounted to the stand-on lawn mower.

8. The stand-on lawn mower according to claim 1, characterized in that: The angle α between the power management board and the plane where the chassis is located is greater than or equal to 10° and less than or equal to 70°.

9. The stand-on lawn mower according to claim 6, characterized in that: The battery pack has lithium iron phosphate cells; the second battery pack has ternary lithium cells.

10. A stand-on lawn mower comprising: A mowing assembly, comprising a mowing element for achieving a mowing function; A support portion, used to support a user; A central control mechanism, comprising an operating platform for a user to operate to control the stand-on lawn mower; A traveling assembly, including a front traveling wheel and a rear traveling wheel; A driving assembly, comprising at least a first motor for driving the walking assembly; A power supply device, configured to at least supply power to the first motor, the power supply device comprising a plurality of battery packs; as well as A power management system, configured to manage the power supply device, the power management system comprising a power management board; It is characterized in that In the front-to-rear direction, a distance L3 between the power management board and the rear wheel axle of the rear running wheel is greater than or equal to 0 and less than or equal to 300 mm.

11. The stand-on lawn mower according to claim 10, characterized in that The power management board is extended in a horizontal direction or a vertical direction or is arranged obliquely.

12. The stand-on lawn mower according to claim 10, characterized in that It also includes a control box and a driving circuit board arranged in the control box, and the power management board is configured to be arranged in the control box.

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