Lawn mower

Abstract

A lawn mower, comprising a base (1), a power assembly, a push rod assembly (13), and an additional energy assembly (2). The base (1) is provided with at least one power interface (111), such that a battery pack can be detachably inserted. The power assembly is connected to the base and electrically connected to the power interface. The push rod assembly is connected to the base. The additional energy assembly comprises an additional battery assembly (22) and a converter (23) connected to the additional battery assembly; the additional battery assembly comprises a plurality of battery connection ports for the pluggable battery pack and a circuit board electrically connected to the battery connection ports; the converter is electrically connected to the circuit board; the additional battery assembly is detachably connected to the base or the push rod assembly; and the converter is detachably connected to the power interface. The lawn mower exhibits improved runtime.

Description

Lawn mower Technical Field

[0001] This application relates to the field of power tools, and more particularly to a lawnmower. Background Technology

[0002] A lawnmower is a mechanical device used for cutting grass and for landscaping and environmental protection. It cuts grass and weeds in pastures and gardens, dries the hay, and uses the recovered hay as livestock feed. To reduce air and noise pollution, the demand for electric lawnmowers is increasing. Electric lawnmowers are powered by lithium batteries or cable-connected power supplies.

[0003] However, while lithium-ion batteries provide sufficient power for lawnmowers, they require periodic charging. Large lawns may require multiple recharges. Cable-connected lawnmowers, on the other hand, are limited by cable length and are unsuitable for large lawns. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this application is to provide a lawnmower with long operating time.

[0005] To achieve the above objectives, the present invention provides a lawnmower, comprising:

[0006] The base has at least one power interface for removable plug-in battery pack;

[0007] A power unit is connected to the base and electrically connected to the power interface;

[0008] The push rod assembly is connected to the base;

[0009] An additional energy component includes an additional battery pack and a converter connected to the additional battery pack. The additional battery pack includes several battery connectors for inserting into the battery pack and a circuit board electrically connected to the battery connectors. The converter is electrically connected to the circuit board. The additional battery pack is detachably connected to the base or the push rod assembly, and the converter is detachably connected to the power interface.

[0010] To achieve the above objectives, the present invention also provides a lawnmower, comprising:

[0011] The base has at least one power interface for detachable connection of the battery pack;

[0012] A power assembly, connected to the base and electrically connected to the power interface; and

[0013] A battery assembly includes a main battery pack and an auxiliary battery pack, the main battery pack including at least one battery pack, the auxiliary battery pack being connected to a converter, and the main battery pack and the converter being selectively and detachably connected to the power interface.

[0014] The lawnmower has a first power supply state and a second power supply state. In the first power supply state, the main battery pack is connected to the power interface and the main battery pack supplies power to the power component.

[0015] In the second power supply state, the converter is connected to the power interface and the additional battery pack supplies power to the power component.

[0016] To achieve the above objectives, the present invention also provides a lawnmower, comprising:

[0017] The base has at least one power interface for removable plug-in battery pack;

[0018] A power assembly is connected to the base and electrically connected to the power supply structure;

[0019] The push rod assembly is connected to the base;

[0020] An additional energy component includes an additional battery pack and a converter connected to the additional battery pack. The additional battery pack includes battery cells and a circuit board electrically connected to the battery cells. The converter is electrically connected to the circuit board. The additional battery pack is detachably connected to the base or the push rod. The converter is detachably connected to the power interface.

[0021] This application provides a lawnmower with a power interface for connecting a battery pack. The lawnmower includes a base, a push rod assembly, and an auxiliary power unit. The base has a power interface, and the push rod assembly is connected to the base and can drive the base to move. The auxiliary power unit includes an auxiliary battery pack and a converter electrically connected to the auxiliary battery pack. Both the battery pack and the converter can be connected to the power interface to power the lawnmower. When using the lawnmower, the battery pack connects to the power interface to power the lawnmower, while the auxiliary power unit is carried by the user. When the battery pack is depleted, it can be removed, and the converter can be connected to the power interface to allow the auxiliary power unit to continue supplying power. This solution allows the lawnmower to be continuously powered by multiple batteries, improving its endurance. Furthermore, when the auxiliary battery pack is not supplying power to the lawnmower, the converter can be connected to other power tools to charge them. Attached Figure Description

[0022] Figure 1 is a schematic diagram of the overall structure of the lawnmower of the present invention;

[0023] Figure 2 is a side view of the overall structure of the lawnmower of the present invention;

[0024] Figure 3 is a schematic diagram of the battery compartment structure of the lawnmower of the present invention;

[0025] Figure 4 is a schematic diagram of the support structure of the lawnmower of the present invention;

[0026] Figure 5 is a schematic diagram of the first structure of the auxiliary energy component of the lawnmower of the present invention;

[0027] Figure 6 is a schematic diagram of the second structure of the auxiliary energy component of the lawnmower of the present invention.

[0028] Explanation of icon numbers: Detailed Implementation

[0029] The terminology used in this invention / utility model is for the purpose of describing specific embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "front," and "rear" indicating orientation or positional relationship are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0030] Please refer to Figures 1 and 2. This application provides a lawnmower, which includes a base 1, a push rod assembly 13, a power assembly (not shown) connected to the base 1, and a battery assembly. The base 1 includes at least one power interface 111 for detachably connecting the battery pack. The push rod assembly 13 is connected to the base 1. At least a portion of the power assembly is housed in the base 1.

[0031] The battery assembly includes a main battery pack (not shown) consisting of at least one battery pack and an auxiliary energy component 2. The battery pack is detachably connected to a power interface 111 to provide power to the power component. The auxiliary energy component 2 includes an auxiliary battery pack 22 and a converter 23 electrically connected to the auxiliary battery pack 22. The auxiliary battery pack 22 includes several battery connection ports (not shown) for inserting battery packs and a circuit board (not shown) electrically connected to the battery connection ports. The converter 23 is electrically connected to the circuit board, which is used to control the charging and discharging of the several battery packs and monitor the operating status of the battery packs.

[0032] The battery pack can be directly plugged into the power interface 111 on the base 1 to power the power unit; alternatively, the battery pack can be plugged into the battery connector of the auxiliary energy component 2, and then electrically connected to the power interface 111 on the base 1 via the converter 23 to power the power unit. Optionally, the lawnmower is generally equipped with multiple battery packs, which are connected in parallel or series directly to the power interface 111 to form the main battery pack, powering the power unit. The auxiliary energy component 2 can also be equipped with multiple battery packs, which are connected in parallel or series to the battery connector, forming an auxiliary battery pack 22 together with the circuit board. The battery packs of the auxiliary energy component 2 can be interchanged with the battery packs of the main battery pack.

[0033] Optionally, the additional battery pack 22 includes battery cells and a circuit board electrically connected to the battery cells.

[0034] The additional battery pack 22 is detachably connected to the base 1 or the push rod assembly 13, and the converter 23 is detachably connected to the power interface 111 to provide power to the power assembly. The battery pack and converter 23 are compatible with other power tools, such as hair dryers, hedge trimmers, electric shears, chainsaws, electric drills, angle grinders, etc.

[0035] The battery pack and converter 23 are selectively and detachably connected to the power interface 111 to power the lawnmower. The lawnmower has a first power supply state and a second power supply state. In the first power supply state, the main battery pack, consisting of at least one battery pack, is connected to the power interface 111 and powers the power unit. In the second power supply state, the converter 23 is connected to the power interface 111 and the power unit is powered by the auxiliary battery pack 22.

[0036] Specifically, the additional power component 2 is a backpack structure that allows the user to carry it on their back, freeing up their hands to control the lawnmower's direction. The base 1 includes four wheels 14 and a power component (not shown). The power component includes a motor connected inside the base 1. The motor has an output end with blades connected to it, which drive the blades to rotate or oscillate to cut grass. The motor's output end extends downwards so that the blades can cut grass along the lawnmower's path when rotating or oscillating. The four wheels 14 are connected to the base 1 and drive the entire base 1. The base 1 also houses a circuit board structure electrically connected to a power interface 111, which is electrically connected to the power component. The power interface 111 of the base 1 can be detachably connected to a battery pack or converter 23.

[0037] Furthermore, the push rod assembly 13 consists of multiple rod-shaped structures. One end of the push rod assembly 13 is connected to the base 1, allowing the user to hold the push rod assembly 13 to control the direction of the lawnmower's movement, thereby enabling the power unit to drive the blades to trim the lawn.

[0038] Furthermore, the power unit includes an assembly of various motors or transmission mechanisms inside the lawnmower for driving the blades and wheels 14.

[0039] Furthermore, the battery pack and converter 23 are equipped with the same type of interface, which can be connected to the power interface 111. The power interface 111 that the battery pack and converter 23 can be connected to can be the power interface 111 of a lawnmower or the power interface 111 of other power tools, such as electric saws, electric shears, electric hair dryers and other garden power tools.

[0040] Furthermore, when the battery pack is connected to the lawnmower, it powers the lawnmower. At this time, the auxiliary battery pack 22 can also power other power tools such as electric saws, electric shears, or electric hair dryers to assist in garden trimming. When the battery pack is depleted, the user can detach it from the power interface 111 and connect the converter 23, which is connected to the auxiliary battery pack 22, to the power interface 111 so that the auxiliary battery pack 22 powers the lawnmower. The battery pack can then be connected to a charger and charged.

[0041] This application provides a lawnmower with a power interface 111 for battery power. The lawnmower includes a base 1, a push rod assembly 13, a power component, and an auxiliary energy component 2. The base 1 has the power interface 111. The push rod assembly 13 is connected to the base 1 and can drive the base 1 to move. A portion of the power component is housed on the base 1, and the output end of the power component has blades for cutting lawn grass. The lawnmower also includes several battery packs and the auxiliary energy component 2. The auxiliary energy component 2 includes an auxiliary battery pack 22 and a converter 23 electrically connected to the auxiliary battery pack 22. Both the battery packs and the converter 23 can be connected to the power interface 111 to power the lawnmower. When using the lawnmower, the battery packs are connected to the power interface 111 to power the lawnmower, while the auxiliary energy component 2 is carried by the user. When the battery packs are depleted, they can be removed, and the converter 23 can be connected to the power interface 111 to allow the auxiliary battery pack 22 to continue providing power. This solution allows the lawnmower to be continuously powered by multiple batteries, improving its range. Furthermore, when the auxiliary battery pack 22 is not supplying power to the lawnmower, the converter 23 can also connect to other power tools to charge them.

[0042] Please refer to Figures 3 and 4. The lawnmower includes a support 12 located near the power interface 111. The support 12 is connected to the base 1 or the push rod assembly 13. An additional battery pack 22 is detachably connected to the support 12.

[0043] Specifically, the base 1 has a housing, and the support 12 can be formed from the housing of the base 1 or it can be a separate structure connected to the base 1. The battery compartment 11 and the support 12 are arranged adjacent to each other, and the power interface 111 in the battery compartment 11 is close to the support 12, or the support 12 is located on the side of the battery compartment 11 closer to the power interface 111. The support 12 is provided with a detachable connection structure, and the additional energy component 2, as a backpack structure, can be put down by the user and installed on the support 12 through the detachable connection structure.

[0044] Furthermore, the detachable connection method includes connection methods such as snap-fit ​​connection, or the support part 12 can be groove-shaped, with the additional energy component 2 housed inside the support part 12.

[0045] In this embodiment, when the auxiliary power component 2 is supplying power to the lawnmower, the user can remove the auxiliary power component 2 and connect it to the lawnmower, thereby reducing the user's load.

[0046] Please refer to Figures 1 and 2. The support 12 is connected to the base 1 and is located between the power interface 111 and the push rod assembly 13.

[0047] Specifically, the power assembly is installed at the center of the base 1, and the power interface 111 for electrically connecting the power assembly is also located at the center of the base 1. The support part 12 is located at the edge of the base 1 and has a platform-like structure. The push rod assembly 13 can also be rotatably connected to the support part 12. The push rod assembly 13, the support part 12, and the power interface 111 are arranged in sequence at intervals in the forward direction of the lawnmower.

[0048] In this embodiment, the push rod assembly 13 makes it convenient for users to control the forward direction of the lawnmower, and when the support part 12 is provided on the push rod assembly 13 or on the base 1 adjacent to the push rod assembly 13, the direction of the force applied by the user is close to the center of gravity of the support part 12 and the auxiliary battery pack 22 connected to the support part 12, making it easier for the user.

[0049] Please refer to Figures 3 and 4. The base 1 includes a battery compartment 11 that at least partially houses the power interface 111. The additional power component 2 includes a cable 24 that connects the additional battery pack 22 and the converter 23. When the lawnmower is powered by the additional power component 2, the converter 24 is at least partially located inside the battery compartment 11, and the cable 24 extends out of the battery compartment 11 to electrically connect the converter 23 to the additional battery pack 22.

[0050] Specifically, the base 1 is equipped with a battery compartment 11, which is a box-like structure with a hemispherical shape and internal space to accommodate power interfaces 111. When the lawnmower has multiple power interfaces 111, the battery compartment 11, which accommodates some or all of the power interfaces 111, can be formed by the shell of the base 1 or it can be a separate box structure connected to the base 1. Furthermore, the inner wall of the battery compartment 11 has space between it and the power interfaces 111, which can accommodate not only the battery pack and converter 23, but also the cable 24 connected to the converter 23. The wall of the battery compartment 11 has through holes through which the cable 24 can pass. A sealing element can be further installed at the through holes to seal the through holes when the cable 24 does not need to pass through, thus ensuring the airtightness of the battery compartment 11.

[0051] Furthermore, if the lawnmower has multiple power interfaces 111, the battery compartment 11 can accommodate some or all of the power interfaces 111. Understandably, some spare power interfaces 111 are located outside the battery compartment 11 to prevent some adapters 23 of different sizes from being unable to fit inside the battery compartment 11, so they can be connected to the power interfaces 111 outside the battery compartment 11.

[0052] In this embodiment, when the battery pack powers the lawnmower, it connects to the power interface 111 and is located within the battery compartment 11. The battery compartment is closed to protect the circuit board structure, power interface 111, and battery pack. When the battery pack is depleted, the user opens the battery compartment 11 and removes the battery pack or recharges it. Then, the converter 23, connected to the additional battery pack 22, is removed. After connecting the converter 23 to the power interface 111, the battery compartment 11 is closed. The cable 24 of the converter 23 passes through a through-hole in the battery compartment 11 to connect to the main battery pack.

[0053] Please refer to Figures 2 and 3. The support part 12 is provided with a mounting surface 121 for connecting the auxiliary battery pack 22. The angle between the mounting surface 121 and the horizontal plane is greater than or equal to 15 degrees and less than or equal to 60 degrees.

[0054] Specifically, in the angle between the mounting surface 121 and the horizontal plane, the acute angle points towards the power interface 111. That is, the support 12 is located between the battery compartment 11 and the push rod assembly 13, with the lower part of the mounting surface 121 adjacent to the power structure and the higher part of the mounting surface 121 adjacent to the push rod assembly 13.

[0055] In this embodiment, by raising the position of the adjacent push rod assembly 13 of the auxiliary energy component 2, the center of gravity of the auxiliary energy component 2 can be shifted forward, and the auxiliary energy component 2 can be placed at an inclined angle. Understandably, the auxiliary energy component 2 has a wide and flat external structure, with its flat side connected to the mounting surface 121. Raising the mounting surface 121 reduces the lateral space occupied by the auxiliary energy component 2 while increasing its vertical space, thereby shifting the center of gravity of the auxiliary energy component 2 forward. Furthermore, the inclined mounting surface 121 facilitates the user's alignment of the auxiliary energy component 2 with the guide rail 122 and the slide groove 221 during installation.

[0056] Please refer to Figures 4 and 6. The auxiliary battery pack 22 is slidably installed with the support part 12. The auxiliary battery pack 22 is provided with a sliding groove 221, and the mounting surface 121 is provided with a guide rail 122. The auxiliary battery pack 22 and the support part 12 are slidably connected by the cooperation of the sliding groove 221 and the guide rail 122.

[0057] Specifically, the bottom of the auxiliary battery pack 22 is provided with a groove 221, with one end of the groove 221 being the inlet end and the other end being the groove wall. The support part 12 is provided with a guide rail 122, and the cross-section of the guide rail 122 and the groove 221 are adapted to allow the guide rail 122 to slide within the groove 221.

[0058] Furthermore, the length direction of the guide rail 122 extends from the base 1 to the push rod assembly 13. Understandably, the extension direction is the forward direction of the lawnmower, so that when the auxiliary battery pack 22 is detachably connected to the guide rail 122 via the slide groove 221, the connection of the auxiliary battery pack 22 will not be unstable due to factors such as inertia or vibration in the direction of movement.

[0059] In this embodiment, after removing the auxiliary battery pack 22, the user can slide the auxiliary battery pack 22 to the guide rail 122 via the slide groove 221. The guide rail 122 enters from the inlet end of the slide groove 221 and moves along its length, abutting against the groove wall. Then, the user can push the push rod assembly 13 to move the base 1 and the auxiliary battery pack 22 together.

[0060] Optionally, the length direction of the guide rail 122 is from the push rod assembly 13 to the front and lower part of the base 1, and the groove wall of the slide 221 is located at one end close to the base 1. The guide rail 122 abuts against the groove wall of the slide 221 under the action of gravity, and the groove wall of the slide 221 can limit the guide rail 122.

[0061] Optionally, the length direction of the guide rail 122 is from the push rod assembly 13 to the lower front of the base 1. A limit part is provided at one end of the guide rail 122 near the base 1. The limit part abuts against the end of the slide groove to prevent the guide rail 122 from continuing to slide down.

[0062] Please refer to Figure 4. The mounting surface 121 is provided with two guide rails 122, and the additional energy component 2 is provided with two sliding grooves 221. Each guide rail 122 is slidably connected to a corresponding sliding groove 221. The cross-section of the sliding groove 221 is T-shaped, and the cross-section of the guide rail 122 is adapted to the sliding groove 221.

[0063] Specifically, two guide rails 122 are arranged parallel to each other on both sides of the base 1, that is, side by side along the width direction of the base 1, and the slide groove 221 is arranged at the bottom of the auxiliary energy component 2 corresponding to the guide rails 122. The cross-section of both the slide groove 221 and the guide rails 122 is T-shaped.

[0064] In this embodiment, the two guide rails 122 are slidably connected to the auxiliary energy component 2, making the force more even and the connection between the auxiliary energy component 2 and the support part 12 more stable. When both the slide groove 221 and the guide rail 122 have T-shaped cross sections, the groove wall of the slide groove 221 abuts against the guide rail 122 from four directions (up, down, left, and right). This prevents the auxiliary energy component 2 from being repeatedly lifted by the vibration of the base 1 when the lawnmower moves, thus improving the stability of the connection between the auxiliary energy component 2 and the support part 12.

[0065] Please refer to Figures 5 and 6. The additional energy component 2 includes a mounting frame 21 detachably connected to the additional battery pack 22. The mounting frame 21 includes a back frame 211 and a shoulder strap 212 connected to the back frame 211. The additional battery pack 22 includes a housing and at least one battery pack housed in the housing. The converter 23 is connected to the housing via a cable.

[0066] Specifically, the back frame 211 of the mounting bracket 21 has a plate-like structure, and the shoulder straps 212 of the mounting bracket 21 are connected to the back frame 211, allowing the back frame 211 to be carried by the user. The outer shell of the auxiliary battery pack 22 is a box, and multiple battery packs (not shown in the figure) or battery groups (not shown in the figure) are installed inside the outer shell of the auxiliary battery pack 22. That is, the battery packs and battery groups can be the same type of battery. The battery groups in the auxiliary battery pack 22 can be taken out and used as a battery pack, and vice versa. The auxiliary battery pack 22 is connected to the converter 23, which extends outside the outer shell of the auxiliary battery pack 22. The auxiliary battery pack 22 is detachably connected to the back frame 211 by means of snap-fit ​​connections or other methods.

[0067] In this embodiment, when the user changes the power supply method, it is not necessary to remove the entire auxiliary energy component 2; only the auxiliary battery pack 22 needs to be removed and installed on the support part 12. This eliminates the need for unnecessary structural interference such as the strap 212 when installing the auxiliary energy component 2 on the support part 12, making it convenient for the user to install the auxiliary battery pack 22.

[0068] Please refer to Figures 5 and 6. The back frame 211 is provided with multiple hooks 211, and the auxiliary battery pack 22 is provided with multiple hanging holes (not shown in the figures). Each hook 211 corresponds to one hanging hole. The auxiliary battery pack 22 is also provided with a handle, which can be used to drive the hanging holes to detach or hook onto the hanging holes.

[0069] Specifically, the auxiliary battery pack 22 has a handle at its upper end, hanging holes around its perimeter, and hooks 211 around its perimeter, with the hooks of the hooks 211 extending upwards. The auxiliary battery pack 22 is hung on the back frame 211 by fastening it to the hooks 211 through the hanging holes.

[0070] In this embodiment, the auxiliary battery pack 22 is hung on the back frame 211. When it is necessary to remove the auxiliary battery pack 22, it can be lifted upwards by the handle to disengage the hanging hole from the hook 211, thereby removing the auxiliary battery pack 22. It is understood that when the auxiliary power component 2 is carried on the user's back, it is more convenient for the user to drive the auxiliary power component 2 upwards by the handle to disengage it from the hook 211. Furthermore, the auxiliary power component 2 will not disengage from the hook 211 when the user performs movements such as turning.

[0071] Please refer to Figures 5 and 6. The additional battery pack 22 includes a control button 25 and a display screen 26. The control button 25 is connected to the housing and electrically connected to the battery pack and / or battery module, and is used to control the status of the battery pack and / or battery module. The display screen 26 is connected to the housing and electrically connected to the battery pack and / or battery module, and is used to display the status of the battery pack and / or battery module.

[0072] Specifically, the auxiliary battery pack 22 has a control button 25 on one side, which includes a power switch or a discharge power control button. The auxiliary battery pack 22 also has a display screen 26 or indicator lights on one side, capable of displaying the status of the auxiliary battery pack 22. When the auxiliary battery pack 22 includes multiple battery packs, it can display the status of each battery pack to determine the remaining power or whether there is a malfunction.

[0073] In this embodiment, when the auxiliary energy component 2 is installed on the support part 12, the control button 25 and the display screen 26 are located on the side facing the user. When the mounting surface 121 is set at an angle to the horizontal plane, the control button 25 and the display screen 26 are located at a high position, which makes it convenient for the user to turn the auxiliary energy component 2 on or off when using the lawnmower. It also makes it convenient for the user to directly view the display screen 26 to judge the status of the auxiliary battery pack 22.

[0074] Please refer to Figures 3 and 5. The lawnmower has multiple power interfaces 111. The additional energy component 2 includes multiple converters 23. Each converter 23 corresponds to a power interface 111, and the multiple converters 23 are connected in series or in parallel via cables 24.

[0075] Specifically, the battery compartment 11 has two or more power interfaces 111, each connected to a battery pack. The auxiliary energy component 2 also has the same number of converters 23 corresponding to the power interfaces 111. The multiple converters 23 can be connected in series or in parallel.

[0076] In this embodiment, multiple power supplies improve the lawnmower's operating range. Furthermore, different voltage designs allow the converters 23 to be connected in parallel or series, enhancing the applicability of the additional energy component 2.

[0077] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A lawnmower, characterized in that, include: The base has at least one power interface for removable plug-in battery pack; A power unit is connected to the base and electrically connected to the power interface; The push rod assembly is connected to the base; An additional energy component includes an additional battery pack and a converter connected to the additional battery pack. The additional battery pack includes several battery connectors that can be plugged into the battery pack and a circuit board electrically connected to the battery connectors. The converter is electrically connected to the circuit board. The additional battery pack is detachably connected to the base or the push rod assembly. The converter is detachably connected to the power interface.

2. The lawnmower according to claim 1, characterized in that, It also includes a support portion located near the power interface, the support portion being connected to the base or the push rod assembly, and the additional battery pack being detachably connected to the support portion.

3. The lawnmower according to claim 2, characterized in that, The support is connected to the base and is located between the power interface and the push rod assembly.

4. The lawnmower according to claim 1, characterized in that, The base includes a battery compartment that at least partially houses the power interface. The additional power unit includes a cable connecting the additional battery pack and the converter. When the lawnmower is powered by the additional power unit, the converter is at least partially located within the battery compartment, and the cable extends out of the battery compartment to electrically connect the converter to the additional battery pack.

5. The lawnmower according to claim 5, characterized in that, The battery compartment has a through hole for the cable to pass through, and a sealing element is detachably installed on the through hole. The sealing element is used to seal the through hole after the cable is removed.

6. The lawnmower according to claim 2, characterized in that, The support portion is provided with a mounting surface for connecting the additional battery pack, and the angle between the mounting surface and the horizontal plane is greater than or equal to 15 degrees and less than or equal to 60 degrees.

7. The lawnmower according to claim 2, characterized in that, The additional battery pack is slidably installed into the support.

8. The lawnmower according to claim 7, characterized in that, The auxiliary battery pack is provided with a sliding groove, and the mounting surface is provided with a guide rail. The sliding groove and the guide rail cooperate to allow the auxiliary battery pack and the support to be slidably connected. The cross-section of the sliding groove is T-shaped, and the cross-section of the guide rail is adapted to the sliding groove.

9. The lawnmower according to claim 8, characterized in that, The length direction of the guide rail extends from the base to the push rod assembly.

10. The lawnmower according to claim 8, characterized in that, A limiting part is provided at one end of the guide rail near the base, and the limiting part abuts against the end of the slide groove; or, One end of the chute is open, and the other end is closed by a chute wall, which abuts against the end of the guide rail.

11. The lawnmower according to claim 8, characterized in that, Two guide rails are provided on the mounting surface, and the two guide rails are arranged side by side along the width direction of the base. The additional battery pack is provided with two corresponding sliding grooves.

12. The lawnmower according to claim 1, characterized in that, The additional battery pack includes a housing that accommodates the battery connector, the battery pack, and the circuit board. There are two or more battery packs, and each battery pack is detachably installed in the housing.

13. The lawnmower according to claim 1, characterized in that, The additional energy component includes a mounting frame detachably connected to the additional battery pack, the mounting frame including a back frame and a shoulder strap connected to the back frame, the additional battery pack including a housing housing the battery connector, the battery pack and the circuit board, and the converter being connected to the housing via a cable.

14. The lawnmower according to claim 13, characterized in that, One of the additional battery pack and the back frame is provided with a hook, and the other is provided with a hanging hole that engages with the hook for attaching a buckle.

15. The lawnmower according to claim 1, characterized in that, The additional battery pack is equipped with a handle.

16. The lawnmower according to claim 12, characterized in that, The additional battery pack includes: Control buttons, connected to the housing and electrically connected to the battery pack; and A display screen, connected to the housing and electrically connected to the battery pack, is used to display the status of the battery pack.

17. The lawnmower according to claim 16, characterized in that, When the additional battery pack is mounted on the push rod or the base, the control buttons and / or the display screen face the user.

18. The lawnmower according to claim 1, characterized in that, The lawnmower includes multiple power interfaces, and the additional energy component includes multiple converters, each converter corresponding to one power interface, and the multiple converters are connected in series or in parallel via cables.

19. A lawnmower, characterized in that, include: The base has at least one power interface for detachable connection of the battery pack; A power assembly is connected to the base and electrically connected to the power interface; and A battery assembly includes a main battery pack and an auxiliary battery pack, the main battery pack including at least one battery pack, the auxiliary battery pack being connected to a converter, and the main battery pack and the converter being selectively and detachably connected to the power interface. The lawnmower has a first power supply state and a second power supply state. In the first power supply state, the main battery pack is connected to the power interface and the main battery pack supplies power to the power component. In the second power supply state, the converter is connected to the power interface and the additional battery pack supplies power to the power component.

20. A lawnmower, characterized in that, include: The base has at least one power interface for removable plug-in battery pack; A power assembly is connected to the base and electrically connected to the power supply structure; The push rod assembly is connected to the base; An additional energy component includes an additional battery pack and a converter connected to the additional battery pack. The additional battery pack includes battery cells and a circuit board electrically connected to the battery cells. The converter is electrically connected to the circuit board. The additional battery pack is detachably connected to the base or the push rod. The converter is detachably connected to the power interface.

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