Charging combination unit of mower

Abstract

The charging combination unit of the mower comprises the mower, a charging station, a butt joint confirmation assembly and a control unit electrically connected with the charging station and the butt joint confirmation assembly, the mower is provided with a limiting mechanism provided with a charging pole piece, the charging station is provided with a positioning structure provided with a butt joint pole piece, and the butt joint confirmation assembly is electrically connected with the control unit. The positioning structure is suitable for being clamped and matched with the limiting mechanism, so that the charging pole piece is connected with the butt joint pole piece, the butt joint confirmation assembly comprises an induction part and a trigger part, the induction part is arranged on one of the mower and the charging station, and the trigger part is arranged on the other one of the mower and the charging station; when the positioning structure is matched with the limiting mechanism, the control unit controls the butt-joint pole piece to be powered on after receiving a signal, detected by the induction component, of the trigger component, so that the butt-joint pole piece is not powered on when not connected with the charging pole piece, and the butt-joint pole piece and the charging pole piece are connected and powered on after the mowing machine and the charging station are connected in a clamped mode. The possibility of circuit faults can be reduced, and the safety of users is ensured.

Description

Technical Field

[0001] This application relates to the field of lawnmower technology, and further to a charging unit for a lawnmower. Background Technology

[0002] Currently, with the rapid economic development and the continuous improvement of people's living standards, modern life places increasingly higher demands on the environment and leisure, and the concept of green spaces such as park greening and residential greening is becoming more and more popular. Lawns, as a common greening facility in modern life, are attracting increasing attention. In daily garden maintenance, lawnmowers are often used to regularly trim lawns to maintain their appearance. Lawnmowers have the advantages of being easy to use and having good cleaning effects; therefore, they are gradually replacing manual weeding and are widely used in daily life and work.

[0003] Lawn mowers can be user-controlled or autonomously controlled to navigate and operate within a designated area, replacing manual trimming of lawns. Traditional lawn mowers, whether gasoline-powered or corded, are inconvenient to use. Therefore, a new type of lawn mower has been proposed, consisting of both the mower itself and a charging station. The mower can automatically or automatically enter the charging station to recharge, typically equipped with charging terminals. When these terminals contact the charging station's terminals, the charging terminals output electrical energy to charge the mower's battery. However, currently, charging lawn mowers via charging stations is not very safe and is prone to malfunctions that can affect the mower's normal operation.

[0004] Therefore, this utility model aims to provide a charging unit for a lawnmower to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the aforementioned technical problems, the purpose of this application is to provide a charging assembly unit for a lawnmower, which aims to improve the connection strength between the lawnmower and the charging station, while also reducing the possibility of circuit failures during lawnmower charging through a docking confirmation component, thereby ensuring the service life of the lawnmower and the charging station and improving the user experience.

[0006] To achieve the above objectives, this application provides a charging unit for a lawnmower, comprising:

[0007] A lawnmower, the lawnmower having a limiting mechanism, the limiting mechanism being provided with charging electrodes;

[0008] A charging station having a positioning structure, wherein a docking electrode is provided on the positioning structure, and the positioning structure is adapted to engage with the limiting mechanism so that the charging electrode is connected to the docking electrode.

[0009] A docking confirmation component, comprising a sensing component and a triggering component, wherein the sensing component is disposed on one of the lawnmower and the charging station, and the triggering component is disposed on the other of the lawnmower and the charging station;

[0010] A control unit, which is electrically connected to the charging station and the docking confirmation component;

[0011] When the positioning structure engages with the limiting mechanism, the control unit receives a signal from the triggering component detected by the sensing component to control the docking electrode to be energized, thereby causing the lawnmower to start charging.

[0012] In some embodiments, a charging tongue is also included, which is disposed on the charging station and located in the forward direction of the lawnmower on the charging station to form the positioning structure, and the mating electrode is disposed on the charging tongue;

[0013] The limiting mechanism includes a charging slot disposed on the lawnmower, a charging electrode disposed in the charging slot, and the charging slot being matched with the charging tongue for the charging tongue to extend into the charging slot so that the charging electrode is connected to the mating electrode.

[0014] In some embodiments, one end of the charging tongue is configured as a hinged end, and the charging tongue is rotatably mounted on the charging station via the hinged end, and the charging tongue is adapted to rotate under the action of external force.

[0015] In some embodiments, the limiting mechanism further includes a guide disposed within the charging slot, and the charging electrode is disposed on one side wall of the charging slot;

[0016] The guide member is provided corresponding to the charging electrode to drive the charging tongue to rotate toward the charging electrode.

[0017] In some embodiments, the side of the charging tongue near the guide is provided as an inclined surface, the guide is connected and fixed to one side wall of the charging slot, and the guide is provided with a guide surface that cooperates with the inclined surface.

[0018] When the charging tongue is inserted into the charging slot, the inclined surface is adapted to move along the guide surface so that the charging tongue can rotate.

[0019] In some embodiments, the guide includes an elastic member and a baffle, one end of the baffle being rotatably disposed at the opening of the charging slot via the elastic member;

[0020] Wherein, the end of the baffle away from the elastic member abuts against the charging electrode. When the charging tongue is inserted into the charging slot, the baffle is used to drive the charging tongue to rotate under the restoring force of the elastic member.

[0021] In some embodiments, the sensing component is configured as a magnetic sensing element, and the triggering component is configured as a magnetic element.

[0022] In some embodiments, the sensing component is disposed within the positioning structure of the charging station, and the triggering component is disposed within the limiting mechanism of the lawnmower.

[0023] In some embodiments, the charging tongue is provided with a receiving cavity, and the mating electrode is disposed in the receiving cavity;

[0024] The charging tongue has a notch on the side near the charging electrode that communicates with the receiving cavity. The portion of the mating electrode that is opposite to the notch bends outward through the notch to form a mating terminal, which is used to connect with the charging electrode.

[0025] In some embodiments, the mating electrode has a first end and a second end disposed opposite to each other, the first end is installed and fixed in the accommodating cavity, the second end has a through hole, and the mating terminal is disposed on the side of the through hole near the first end;

[0026] An installation post is provided inside the accommodating cavity, and the second end is sleeved on the outside of the installation post through the through hole, which can move up and down.

[0027] Compared with the prior art, the charging unit for a lawnmower provided in this application has the following features:

[0028] Beneficial effects:

[0029] 1. This utility model provides a charging unit for a lawnmower, which includes a limiting mechanism on the lawnmower and a positioning structure on the charging station. The positioning structure and the limiting mechanism engage with each other to ensure the connection strength between the lawnmower and the charging station. This effectively improves the stability and strength of the connection between the charging electrode and the docking electrode, reducing the possibility of poor contact or detachment. Furthermore, the docking electrode is not energized before the positioning structure and the limiting mechanism engage, reducing the possibility of impurities from the external environment entering the positioning structure and affecting charging safety, thus ensuring the safety of the charging station in daily use. Only after the positioning structure and the limiting mechanism are fully engaged and the docking confirmation component confirms the connection between the charging electrode and the docking electrode will the docking electrode be energized. This significantly reduces the possibility of electrical sparks or other circuit failures during charging, ensuring the safety of both the lawnmower and the charging station, and improving the user experience.

[0030] 2. The present invention provides a charging assembly unit for a lawnmower, wherein the charging slot and the charging tongue are matched with each other, which can effectively improve the connection strength between the lawnmower and the charging station, reduce the possibility of separation between the charging electrode and the docking electrode, and also reduce the possibility of external impurities entering the charging tongue and causing a short circuit.

[0031] 3. The present invention provides a charging assembly unit for a lawnmower, wherein one end of the charging tongue is configured as a hinged end. When the lawnmower moves relative to the charging station, the inclined surface of the charging tongue is subjected to the guiding surface of the guide member, causing the charging tongue to rotate under the squeezing action of the guide surface. This further squeezes the mating electrode set on the charging electrode and the charging tongue, thereby further improving the stability of the connection between the charging electrode and the mating electrode.

[0032] 4. The present invention provides a charging assembly unit for a lawnmower, wherein one end of a baffle is rotatably disposed at the opening of a charging slot via an elastic element. When the charging tongue is not inserted into the charging slot, the baffle can prevent external impurities from entering the charging slot, thereby further reducing the possibility of short circuit. When the charging tongue is inserted into the charging slot, the baffle squeezes the charging tongue under the restoring force of the elastic element, causing the charging tongue to rotate, thereby further improving the stability of the connection between the charging electrode and the mating electrode.

[0033] 5. The present invention provides a charging assembly unit for a lawnmower, wherein the docking electrode extends from the notch of the charging plug only through the docking terminal, which can reduce the influence of the external environment on the docking electrode. Moreover, the docking terminal is bent and the second end is movably sleeved on the mounting post, so that the docking terminal can also have a certain degree of elasticity, further improving the connection strength between the docking electrode and the charging electrode. Attached Figure Description

[0034] The preferred embodiments will now be described in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of this application.

[0035] Figure 1 This is a schematic diagram of the lawnmower provided by this utility model moving relative to the charging station;

[0036] Figure 2 This is a schematic diagram of the structure of the lawnmower and charging station provided by this utility model when they are used together;

[0037] Figure 3 This is a schematic diagram of the structure when the charging tongue and the charging slot are engaged and mated according to this utility model;

[0038] Figure 4 This is an exploded view of the charging plug provided by this utility model;

[0039] Figure 5 This is a schematic diagram of the charging slot of the charging unit of the lawnmower provided by this utility model.

[0040] Explanation of icon numbers:

[0041] Lawn mower 1, charging slot 11, charging electrode 12, baffle 131, charging station 2, charging tongue 21, hinge end 211, notch 212, mounting post 213, rotating shaft 214, limiting groove 215, first half shell 216, second half shell 217, docking electrode 22, first end 221, second end 222, through hole 223, docking terminal 224, magnetic induction element 31, magnetic element 32. Detailed Implementation

[0042] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort.

[0043] To keep the drawings concise, each drawing only schematically shows the parts relevant to the application; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" can mean not only "only one" but also "more than one."

[0044] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0045] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication 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.

[0046] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element 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 this application.

[0047] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0048] Currently, a lawnmower charging unit has been proposed. The lawnmower is moved to a charging station for charging, and during charging, the charging electrode on the lawnmower needs to connect with the docking electrode on the charging station. However, in existing technologies, the docking electrode is already energized from the start, meaning charging begins as soon as the docking electrode and the charging electrode make contact. This charging method is prone to insufficient contact, leading to safety hazards such as electrical sparks. Moreover, during charging, the docking electrode only needs to be placed on the charging electrode, resulting in low connection strength and stability, which can easily lead to problems such as poor contact and open circuits.

[0049] In this embodiment, please refer to the appendix to the specification. Figures 1 to 5This embodiment provides a charging unit for a lawnmower, specifically including a lawnmower 1, a charging station 2, a docking confirmation component, and a control unit. The lawnmower 1 has a limiting mechanism with a charging electrode 12 mounted on it. Correspondingly, the charging station 2 has a positioning structure adapted to engage with the limiting mechanism to park the lawnmower 1 on the charging station 2, thus connecting the lawnmower 1 and the charging station 2. A docking electrode 22 is mounted on the positioning structure, and the positioning structure engages with the limiting mechanism to connect the charging electrode 12 and the docking electrode 22.

[0050] It is understandable that by interlocking the positioning structure and the limiting mechanism, the connection strength between the lawnmower 1 and the charging station 2 can be guaranteed, reducing the possibility of the lawnmower 1 falling off the charging station 2 during charging. This ensures the stability and reliability of the connection between the docking electrode 22 and the charging electrode 12, and reduces the possibility of circuit hazards such as open circuits due to poor contact.

[0051] Additionally, the docking confirmation component includes a sensing component and a triggering component. The sensing component is located on one of the lawnmower 1 and the charging station 2, and correspondingly, the triggering component is located on the other. The sensing component is used to acquire the signal emitted by the triggering component to determine the positional relationship of the triggering component relative to the sensing component. The control unit is electrically connected to the charging station 2 and the docking confirmation component. When the positioning structure and the limiting mechanism engage, the sensing component detects the signal of the triggering component at its current position. Upon acquiring this signal, the control unit determines that the lawnmower 1 is in position. After the docking electrode 22 and the charging electrode 12 are docked, the control unit controls the docking electrode 22 on the charging station 2 to be energized, thereby enabling the charging station 2 to start charging the lawnmower 1.

[0052] It should be noted that in existing technologies, when a lawnmower moves to the charging station, even if the lawnmower is not fully and accurately positioned, the charging electrode and the docking electrode may still make contact and charging will begin immediately. Directly energizing the charging electrode and the docking electrode without accurate docking can easily cause electrical sparks and other circuit malfunctions, affecting normal use and posing safety risks. However, in this embodiment, the docking electrode 22 is not energized when the charging station 2 and the lawnmower 1 are not properly engaged. If the user accidentally touches the docking electrode 22, or if rainwater or other impurities from the external environment enter the positioning structure, the lack of energization on the docking electrode 22 ensures the safety of the charging station 2 during daily use. When the positioning structure and the limiting mechanism are engaged, the sensing component detects the signal emitted by the triggering component in the correct position. Upon receiving this signal, the control unit confirms that the lawnmower 1 has moved into position and that the docking electrode 22 and the charging electrode 12 are accurately connected. Only then will the control unit energize the docking electrode 22 to begin charging the lawnmower 1. Moreover, the positioning structure and the limiting mechanism can be engaged and cooperate to fully enhance the connection strength between the lawnmower 1 and the charging station 2, and reduce the possibility of the docking electrode 22 and the charging electrode 12 separating during charging.

[0053] In one embodiment, the sensing component is disposed on one of the limiting mechanism and the positioning structure, and the triggering component is disposed on the other of the limiting mechanism and the positioning structure. See the appendix to the specification. Figure 3 The sensing component is located within the positioning structure of the charging station 2, and the triggering component is located within the limiting mechanism of the lawnmower 1.

[0054] Generally, the sensing component can be a magnetic sensing element, such as a Hall sensor or a magnetic sensor, while the triggering component can be a magnetic element, such as a magnet. The magnetic sensing element can detect the magnetic field strength generated by the magnetic element. The magnetic element has different magnetic field strengths at different positions relative to the magnetic sensing element. When the positioning structure and the limiting mechanism engage, the magnetic sensing element can detect a specific magnetic field strength of the magnetic element. After obtaining this magnetic field strength, the control module can determine that the lawnmower 1 has moved into position. Of course, in actual production applications, the sensing and triggering components can also be of other types, such as infrared sensors, etc., which will not be described in detail here, and are all within the protection scope of this utility model.

[0055] In one embodiment, see the appendix to the specification. Figures 3 to 5This embodiment further describes the limiting mechanism and positioning structure. The charging station 2 also includes a charging tongue 21, which is mounted on the charging station 2. A mating electrode 22 is disposed on the charging tongue 21 and located in the forward direction of the lawnmower 1 on the charging station 2, allowing the lawnmower 1 to move towards or away from the charging tongue 21 when moving on the charging station 2, thus forming a positioning structure. Correspondingly, the limiting mechanism includes a charging slot 11 disposed on the lawnmower 1, with the charging electrode 12 disposed within the charging slot 11. The charging slot 11 matches the charging tongue 21, allowing the charging tongue 21 to be inserted into the charging slot 11 when the lawnmower 1 moves on the charging station 2, thereby causing the mating electrode 22 to abut against the charging electrode 12.

[0056] Understandably, the charging slot 11 matches the charging tongue 21. Generally, the charging slot 11 is slightly larger than the charging tongue 21, allowing the charging tongue 21 to be smoothly inserted into the charging slot 11 while also being limited by the charging slot 11, thus improving the stability of the connection between the lawnmower 1 and the charging station 2, and between the docking electrode 22 and the charging electrode 12. Furthermore, it reduces the possibility of impurities from the external environment entering the charging slot 11 during charging, lowering the likelihood of short circuits or other circuit failures.

[0057] In one embodiment, see the appendix to the specification. Figure 3 and 4 In this embodiment, to further improve the stability of the connection between the mating electrode 22 and the charging electrode 12, one end of the charging tongue 21 is configured as a hinge end 211, which is connected to the charging station 2. This allows the charging tongue 21 to be rotatably mounted on the charging station 2 via the hinge end 211. Moreover, the charging tongue 21 is designed to rotate only under the action of external force, so that the mating electrode 22 and the charging electrode 12 mounted on the charging tongue 21 can further contact and compress each other. The charging tongue 21 can maintain its original shape when not subjected to external force.

[0058] Furthermore, the limiting mechanism also includes a guide. The charging electrode 12 is disposed on one side wall inside the charging slot 11. The guide is disposed inside the charging slot 11 and is disposed corresponding to the charging electrode 12. When the charging tongue 21 is inserted into the charging slot 11, the charging tongue 21 will be rotated towards the charging electrode 12 by the action of the guide.

[0059] See the instruction manual appendix Figure 4This embodiment further describes the hinge end 211. Two corresponding rotating shafts 214 are provided at one end of the charging plug 21. Correspondingly, the charging station 2 has mounting holes that mate with the rotating shafts 214. The rotating shafts 214 are inserted into the mounting holes to achieve a rotatable connection between the charging plug 21 and the charging station 2. Furthermore, a damping sleeve is fitted on the outside of the rotating shaft 214 to increase the frictional force on the rotating shaft 214, thereby ensuring that the charging plug 21 rotates only under the action of an external force (guide).

[0060] Preferably, a limiting groove 215 is provided on the charging plug 21, and a torsion spring is sleeved on the outside of the rotating shaft 214. One elastic arm of the torsion spring is located in the limiting groove 215, and the other elastic arm of the torsion spring abuts against the charging station 2, so that when the charging plug 21 is removed from the charging slot 11, the charging plug 21 can rotate to the initial position under the action of the torsion spring's restoring force, without requiring manual adjustment by the user.

[0061] In addition, in actual production applications, the charging electrode 12 and the guide are respectively set on the upper and lower side walls of the charging slot 11, so that the charging tongue 21 can rotate between the upper and lower side walls. The charging electrode 12 and the guide can be respectively set on the left and right side walls of the charging slot 11, so that the charging tongue 21 can rotate between the left and right side walls.

[0062] In one embodiment, the guide member is further described. The guide member is fixedly mounted on one side wall of the charging slot 11. Correspondingly, the side of the charging tongue 21 near the guide member is set as an inclined surface. A guide surface that mates with the inclined surface is provided on the guide member, i.e., the guide surface is located on the side of the guide member near the charging tongue 21. When the charging tongue 21 is inserted into the charging slot 11, it abuts against the guide surface of the guide member, causing the inclined surface to move along the guide surface. The charging tongue 21 is subjected to a downward force from the guide surface and rotates towards the charging electrode 12, thereby further pressing and contacting the mating electrode 22 and the charging electrode 12, further improving the connection strength between them and reducing the possibility of poor contact leading to electrical sparks.

[0063] Generally, the inclined surface is inclined away from the hinge end 211 and away from the guide member. In this embodiment, the inclined surface and the guide surface further enhance the connection strength between the mating electrode 22 and the charging electrode 12, and also enhance the connection strength between the charging tongue 21 and the charging slot 11.

[0064] In one embodiment, this embodiment provides another guide structure, the guide includes an elastic member and a baffle 131, wherein one end of the baffle 131 is rotatably disposed at the opening of the charging slot 11 through the elastic member, so that the baffle 131 can block the charging slot 11 in its natural state, reducing the possibility of impurities in the external environment entering the charging slot 11 and causing a short circuit.

[0065] Generally, the elastic element can be set as a torsion spring, which is sleeved on one end of the baffle 131. One elastic arm of the torsion spring abuts against one side wall of the charging slot 11, and the other elastic arm abuts against the baffle 131. When the charging tongue 21 is not engaged with the charging slot 11, the end of the charging tongue 21 near the charging electrode 12 abuts against the charging electrode 12. When the charging tongue 21 is inserted into the charging slot 11, the end of the baffle 131 away from the elastic element rotates away from the charging electrode 12, and the elastic element is compressed. After the charging tongue 21 is in place, the restoring force generated by the elastic element causes the charging tongue 21 to rotate, thereby making the connecting electrode 22 stably abut against the charging electrode 12.

[0066] Of course, in actual production applications, there are various structures for the guide member. It is only necessary to drive the charging tongue 21 to rotate toward the charging electrode 12. They will not be described one by one here, but are all within the protection scope of this utility model.

[0067] Furthermore, there are several ways to set the mating electrode 22 on the charging plug 21. For example, the mating electrode 22 can be set directly on the side of the charging plug 21 close to the charging electrode 12.

[0068] In this embodiment, please refer to the appendix to the specification. Figure 4 To further enhance the connection strength between the mating electrode 22 and the charging electrode 12, a receiving cavity is provided within the charging tongue 21, and the mating electrode 22 is disposed within the receiving cavity. Specifically, a notch 212 is provided on the side of the charging tongue 21 near the charging electrode 12, and the portion of the mating electrode 22 corresponding to the notch 212 bends outward through the notch 212, thereby forming a mating terminal 224 on the mating electrode 22. The mating terminal 224 abuts against the charging electrode 12. It can be understood that the mating terminal 224 is formed by bending the mating electrode 22, giving it high elasticity and further improving the stability of the connection between the mating electrode 22 and the charging electrode 12.

[0069] See the appendix to the instruction manual. Figure 4The charging plug 21 includes a first half-shell 216 and a second half-shell 217 disposed opposite to each other, with a receiving cavity formed between the first half-shell 216 and the second half-shell 217. The mating electrode 22 has a first end 221 and a second end 222 disposed opposite to each other. The first end 221 is fixed in the receiving cavity by screws, and a through hole 223 is provided on the second end 222. Correspondingly, a mating terminal 224 is disposed on the side of the through hole 223 near the first end 221, and the mating terminal 224 extends from a notch 212. A mounting post 213 is provided in the receiving cavity, and the second end 222 is movably sleeved on the outside of the mounting post 213 through the through hole 223.

[0070] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this application. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A charging unit for a lawnmower, characterized in that, include: A lawnmower, the lawnmower having a limiting mechanism, the limiting mechanism being provided with charging electrodes; A charging station having a positioning structure, wherein a docking electrode is provided on the positioning structure, and the positioning structure is adapted to engage with the limiting mechanism so that the charging electrode is connected to the docking electrode. A docking confirmation component, comprising a sensing component and a triggering component, wherein the sensing component is disposed on one of the lawnmower and the charging station, and the triggering component is disposed on the other of the lawnmower and the charging station; A control unit, which is electrically connected to the charging station and the docking confirmation component; When the positioning structure engages with the limiting mechanism, the control unit receives the signal from the triggering component detected by the sensing component and controls the docking electrode to be energized, thereby causing the lawnmower to start charging.

2. The charging unit for a lawnmower according to claim 1, characterized in that, It also includes a charging tongue, which is disposed on the charging station and located in the forward direction of the lawnmower on the charging station to form the positioning structure; The limiting mechanism includes a charging slot disposed on the lawnmower, the charging slot being matched with the charging tongue for the charging tongue to extend into the charging slot so that the mating electrode abuts against the charging electrode.

3. The charging unit for a lawnmower according to claim 2, characterized in that, One end of the charging plug is configured as a hinge end, and the charging plug is rotatably mounted on the charging station via the hinge end. The charging plug is adapted to rotate under the action of external force.

4. The charging unit for a lawnmower according to claim 3, characterized in that, The limiting mechanism also includes a guide disposed within the charging slot, and the charging electrode is disposed on one side wall of the charging slot; The guide member is provided corresponding to the charging electrode to drive the charging tongue to rotate toward the charging electrode.

5. The charging unit for a lawnmower according to claim 4, characterized in that, The guide is fixedly connected to one side wall of the charging slot, the side of the charging tongue near the guide is set as an inclined surface, and the guide is provided with a guide surface that cooperates with the inclined surface. When the charging tongue is inserted into the charging slot, the inclined surface is adapted to move along the guide surface so that the charging tongue can rotate.

6. The charging unit for a lawnmower according to claim 4, characterized in that, The guide includes an elastic element and a baffle, one end of which is rotatably disposed at the opening of the charging slot via the elastic element; When the charging tongue is inserted into the charging slot, the end of the baffle away from the elastic member rotates in a direction away from the charging electrode and abuts against the charging tongue under the restoring force of the elastic member.

7. A charging unit for a lawnmower according to any one of claims 1-6, characterized in that, The sensing component is configured as a magnetic sensing element, and the triggering component is configured as a magnetic element.

8. The charging unit for a lawnmower according to claim 7, characterized in that, The sensing component is disposed within the positioning structure, and the triggering component is disposed within the limiting mechanism.

9. A charging unit for a lawnmower according to any one of claims 3-6, characterized in that, The charging plug has a receiving cavity, and the mating electrode is disposed in the receiving cavity; The charging tongue has a notch on the side near the charging electrode that communicates with the receiving cavity. The portion of the mating electrode that is opposite to the notch bends outward through the notch to form a mating terminal for connection with the charging electrode.

10. A charging unit for a lawnmower according to claim 9, characterized in that, The mating electrode has a first end and a second end that are disposed opposite to each other. The first end is installed and fixed in the accommodating cavity, and a through hole is formed on the second end. The mating terminal is disposed on the side of the through hole near the first end. An installation post is provided inside the accommodating cavity, and the second end is movably sleeved on the outside of the installation post through the through hole.

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