WO2021147312A1

WO2021147312A1 - Charging butt joint structure, and charging system of mower

Info

Publication number: WO2021147312A1
Application number: PCT/CN2020/111069
Authority: WO
Inventors: 王聪; 聂恒安; 刘涛
Original assignee: 天佑电器（苏州）有限公司
Priority date: 2020-01-21
Filing date: 2020-08-25
Publication date: 2021-07-29
Also published as: CN211265771U

Abstract

Disclosed are a charging butt joint structure, and a charging system of a mower, relating to the technical field of mowers. The charging butt joint structure comprises a first charging piece (11) and a second charging piece (21), wherein the face of the first charging piece (11) facing the second charging piece (21) is a first butt joint face (1111); the face of the second charging piece (21) facing the first charging piece (11) is a second butt joint face (2111); the first butt joint surface (1111) and the second butt joint surface (2111) can realize a butt joint during charging; and one of the first butt joint surface (1111) and the second butt joint surface (2111) is an arc-shaped surface, and the other is a plane. One of the first butt joint surface (1111) and the second butt joint surface (2111) is set to be an arc-shaped surface, and the other is set to be a plane, such that the contact between the first charging piece (11) and the second charging piece (21) is linear contact, and the linear contact between the first charging piece (11) and the second charging piece (21) can still be realized when the first charging piece or the second charging piece deflects by a certain angle; and compared with the surface contact in the prior art, the reliability of butt joint charging is improved, and the resistance of the relative movement between the first charging piece (11) and the second charging piece (21) can also be reduced.

Description

Charging docking structure and charging system of lawn mower

Technical field

The utility model relates to the technical field of lawn mowers, in particular to a charging docking structure and a charging system of the lawn mower.

Background technique

A lawn mower is a mechanical tool used to mow lawns, vegetation, etc. Because the lawn mower needs to move around during work, it is generally powered by rechargeable batteries. When the power is insufficient, it needs to be charged through a charging station. A first charging piece is arranged on the lawn mower body, and a second charging piece is arranged in the charging station. The surface of the first charging piece and the surface of the second charging piece are in contact with each other to realize butt charging.

In the prior art, the lawn mower is usually unable to be accurately positioned to the charging station due to various interference factors, and the surface of the first charging sheet arranged on the lawn mower body is horizontal, and the second charging sheet arranged in the charging station The surface is also level. When the flatness of the two surfaces is not high, the two are prone to virtual contact, which reduces the reliability of docking charging.

Therefore, there is an urgent need for a charging docking structure and a lawn mower charging system to solve the above technical problems.

Utility model content

The purpose of the utility model is to provide a charging docking structure and a lawn mower charging system to solve the problem of low docking charging reliability in the prior art.

To achieve this purpose, the utility model adopts the following technical solutions:

A charging docking structure includes a first charging piece and a second charging piece. The side of the first charging piece facing the second charging piece is a first butting surface, and the second charging piece faces the first charging piece. One side of the sheet is a second docking surface, at least one of the first charging sheet and the second charging sheet has elasticity, the first docking surface and the second docking surface can be docked during charging, so One of the first butting surface and the second butting surface is an arc-shaped surface, and the other is a flat surface.

Preferably, the charging docking structure further includes a plug and a charging socket for inserting the plug, the plug includes a plug and the second charging sheet arranged on both sides of the plug; the charging socket is provided There are two first charging pieces, and the two first charging pieces correspond to the two second charging pieces one-to-one.

Preferably, the charging socket is V-shaped or trapezoidal, or the front part of the charging socket is V-shaped and the rear part is U-shaped; the insert is U-shaped or trapezoidal.

Preferably, an elastic component is provided in the charging socket, and the elastic component is used to make the second charging piece come into close contact with the first charging piece when the plug is inserted into the charging socket, and when the plug is pulled out The first charging piece is reset after the socket.

Preferably, the first charging piece is fixed on the mounting bracket;

The elastic component includes a torsion spring and a fixing column, the fixing column is fixed to the inner wall of the charging socket, the mounting bracket is rotatably connected to the fixing column, and the torsion spring is sleeved on the fixing column, so One end of the torsion spring abuts against the inner wall of the charging socket, and the other end of the torsion spring abuts against the first charging piece or the mounting bracket.

Preferably, the first charging piece includes a connecting portion connected at an angle and a first docking portion, the connecting portion is used to connect with the mounting bracket, and the first docking surface is facing the first docking portion. One side of the second charging sheet.

Preferably, the connecting portion is located on a side of the first mating portion facing away from the insertion direction.

Preferably, the second charging piece has a second docking portion, the second docking portion is located at the insertion end of the second charging piece, and the second docking surface is such that the second docking portion faces the first One side of the charging sheet.

Preferably, the material of the insert is plastic.

Preferably, the plug further includes a limiter, the limiter is connected to the other end of the plug opposite to the insertion end, the width of the limiter is greater than the width of the plug, and the limiter is It is configured so that it cannot be inserted into the charging socket.

A charging system for a lawn mower, comprising a lawn mower body, a charging station, and the charging docking structure as described in any of the above solutions, the first charging sheet is arranged in the lawn mower body, and the second The charging piece is arranged in the charging station.

The beneficial effects of the utility model:

The charging docking structure provided by the utility model includes a first charging piece and a second charging piece. The side of the first charging piece facing the second charging piece is the first docking surface, and the side of the second charging piece facing the first charging piece is the first charging piece. Two butting surfaces, at least one of the first charging piece and the second charging piece is elastic, the first butting surface and the second butting surface can be connected during charging, and one of the first butting surface and the second butting surface is an arc The other is a flat surface.

By setting one of the first butting surface and the second butting surface as an arc-shaped surface and the other as a flat surface, the contact between the first charging piece and the second charging piece is line contact, and the first charging piece and At least one of the second charging pieces has elasticity, so that the linear contact between the two charging pieces can still be ensured when different angles are caused by interference factors during the charging and docking process, which is improved compared to the surface contact in the prior art. This improves the reliability of docking charging, and at the same time can reduce the relative movement resistance between the first charging piece and the second charging piece.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the charging system of the lawn mower of the present invention;

Figure 2 is a cross-sectional view of A-A in Figure 1;

Figure 3 is an enlarged view of B in Figure 2;

Figure 4 is a schematic diagram of Figure 3 after removing the plug;

Figure 5 is a second cross-sectional view of A-A in Figure 1;

Fig. 6 is an enlarged view of C in Fig. 5.

In the picture:

10-Mower body; 101-Charging socket; 11-First charging piece; 111-First docking part; 1111-First docking surface; 112-Connecting part; 12-Mounting bracket;

20-Charging station; 21-Second charging piece; 211-Second docking part; 2111-Second docking surface; 22-Insert piece; 23-Limiting platform.

Detailed ways

The technical solution of the present utility model will be further explained below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described here are only used to explain the present utility model, but not to limit the present utility model. In addition, it should be noted that, for ease of description, only the parts related to the present invention are shown in the drawings, but not all.

In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or a Integral; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present utility model can be understood under specific circumstances.

In the present invention, unless otherwise clearly defined and defined, the "on" or "under" of the first feature of the second feature may include the first and second features in direct contact, or may include the first and second features. The features are not in direct contact but through other features between them. Moreover, the "above", "above" and "above" of the first feature on the second feature include the first feature directly above and obliquely above the second feature, or it simply means that the first feature is higher in level than the second feature. The "below", "below", and "below" of the first feature of the second feature include the first feature directly below and obliquely below the second feature, or it simply means that the first feature has a lower level than the second feature.

In the description of this embodiment, the terms "upper", "lower", "left", "right", and other orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for ease of description and simplified operations. , Rather than indicating or implying that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish them in description, and have no special meaning.

As shown in Figures 2 to 6, the present invention provides a charging docking structure, which includes a first charging piece 11 and a second charging piece 21. The side of the first charging piece 11 facing the second charging piece 21 is the first butting surface 1111, the side of the second charging piece 21 facing the first charging piece 11 is the second abutting surface 2111. Either the first charging piece 11 and the second charging piece 21 have elasticity, and the first charging piece 11 and The second charging pieces 21 all have elasticity. The first mating surface 1111 and the second mating surface 2111 can be mated during charging. One of the first mating surface 1111 and the second mating surface 2111 is an arc-shaped surface, and the other is a flat surface. Figures 2 and 3 show the case where the first butting surface 1111 is a plane and the second butting surface 2111 is an arc-shaped surface; Figures 5 and 6 show that the first butting surface 1111 is an arc-shaped surface, and the second butting surface 2111 is the case of a plane.

By setting one of the first mating surface 1111 and the second mating surface 2111 as an arc-shaped surface and the other as a flat surface, the contact between the first charging sheet 11 and the second charging sheet 21 is line contact, and When the first charging piece 11 or the second charging piece 21 is deflected at a certain angle, the linear contact between the two can still be achieved. Compared with the surface contact in the prior art, the reliability of docking charging is improved, and at the same time, it is also The resistance of the relative movement between the first charging piece 11 and the second charging piece 21 can be reduced.

Further, the charging docking structure further includes a plug and a charging socket 101 mated with the plug. The plug includes a plug 22 and the second charging sheet 21 provided on both sides of the plug 22; the charging socket 101 is provided with two first charging sockets. The charging piece 11, the two first charging pieces 11 and the two second charging pieces 21 are in one-to-one correspondence. When charging, the plug is used for inserting into the charging socket 101, so that the second charging piece 21 and the first charging piece 11 are connected to each other. Preferably, the material of the insert 22 is plastic to avoid affecting the charging process. Preferably, the plug further includes a limiter 23, the limiter 23 is connected to the other end of the plug opposite to the insertion end, the width of the limiter 23 is greater than the width of the plug, and the limiter 23 is configured so that it cannot be inserted into the charging socket 101, Easy to operate.

As shown in Figure 4, the front part of the lawn mower charging socket 101 is a V-shaped opening, and the rear part is a U-shaped structure. The V-shaped opening is convenient for connecting the lawn mower to the plug on the charging station. Further guiding role in order to better realize the charging docking. Alternatively, the charging socket 101 can also be V-shaped or trapezoidal as a whole, which can also achieve the purpose of facilitating plug insertion. For the plug 22, in order to cooperate with the charging socket 101, the shape of the plug 22 is correspondingly set to a U shape, or it can be set to a trapezoid with a certain inclination angle on both sides as shown in FIG. 3.

An elastic component (not shown in the figure) is provided in the charging socket 101, and the elastic component is used to keep the second charging piece 21 in close contact with the first charging piece 11 when the plug is inserted into the charging socket 101, and to make the second charging piece 21 close contact with the first charging piece 11 when the plug is pulled out. The first charging piece 11 is reset. Specifically, the first charging piece 11 is fixed on the mounting bracket 12, the elastic component includes a torsion spring and a fixing post, the fixing post is arranged on the inner wall of the charging socket 101, the mounting bracket 12 is rotatably connected to the fixing post, and the torsion spring is sleeved on the fixing post. On the column, one end of the torsion spring abuts against the inner wall of the charging socket 101, and the other end of the torsion spring abuts against the mounting bracket 12 or the first charging piece 11. The structure is reasonable, simple and easy to realize.

The first charging piece 11 includes a connecting portion 112 connected at an angle and a first docking portion 111. The connecting portion 112 is used to connect with the mounting bracket 12. The first docking surface 1111 is the first docking portion 111 facing the second charging pad. 21 side. Preferably, the connecting portion 112 is located on the side of the first mating portion 111 facing away from the insertion direction to facilitate the insertion of the plug.

The second charging piece 21 has a second docking portion 211, the second docking portion 211 is located at the insertion end of the second charging piece 21, and the second docking surface 2111 is the side of the second docking portion 211 facing the first charging piece 11. By disposing the second docking portion 211 at the insertion end of the second charging piece 21, the plug can be docked and charged at the first time when the plug is inserted into the charging socket 101.

As shown in Figures 1 to 6, the present invention also provides a lawn mower charging system, including a lawn mower body 10, a charging station 20, and the charging docking structure as described above. The first charging sheet 11 is arranged on the mower. In the grass machine body 10, the second charging piece 21 is arranged in the charging station 20. Specifically, the first charging piece 11 is arranged in the charging socket 101, the charging socket 101 is opened on the lawn mower body 10, and the second charging piece 21 is arranged on a plug, which is a component of the charging station 20.

Obviously, the above-mentioned embodiments of the present utility model are merely examples to clearly illustrate the present utility model, and are not intended to limit the implementation of the present utility model. For those of ordinary skill in the art, other changes or modifications in different forms can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model shall be included in the protection scope of the claims of the utility model.

Claims

A charging docking structure, characterized in that it comprises a first charging piece (11) and a second charging piece (21), the side of the first charging piece (11) facing the second charging piece (21) is the first A mating surface (1111), the side of the second charging sheet (21) facing the first charging sheet (11) is a second mating surface (2111), the first charging sheet (11) and the first charging sheet (11) are At least one of the two charging pieces (21) has elasticity, the first butting surface (1111) and the second butting surface (2111) can be connected during charging, and the first butting surface (1111) and the One of the second butting surfaces (2111) is an arc-shaped surface, and the other is a flat surface.
The charging docking structure according to claim 1, wherein the charging docking structure further comprises a plug and a charging socket (101) into which the plug is inserted, the plug includes a plug (22) and is arranged on the The second charging piece (21) on both sides of the plug (22); the charging socket (101) is provided with two first charging pieces (11), two first charging pieces (11) ) Corresponds to the two second charging pieces (21) one-to-one.
The charging docking structure according to claim 2, wherein the charging socket (101) is V-shaped or trapezoidal, or the front part of the charging socket (101) is V-shaped and the rear part is U-shaped; The insert (22) is U-shaped or trapezoidal.
The charging docking structure according to claim 2, characterized in that, an elastic component is provided in the charging socket (101), and the elastic component is used to cause the plug to be inserted into the charging socket (101). The second charging piece (21) is in close contact with the first charging piece (11), and the first charging piece (11) is reset after the charging socket (101) is pulled out.
The charging docking structure according to claim 4, wherein the first charging piece (11) is fixed on the mounting bracket (12);

The elastic component includes a torsion spring and a fixing column, the fixing column is fixed to the inner wall of the charging socket (101), the mounting bracket (12) is rotatably connected to the fixing column, and the torsion spring is sleeved on the fixing column. On the fixing column, one end of the torsion spring abuts against the inner wall of the charging socket (101), and the other end of the torsion spring abuts against the first charging piece (11) or the mounting bracket (12) .
The charging docking structure according to claim 5, wherein the first charging sheet (11) comprises a connecting portion (112) and a first docking portion (111) connected at an angle, and the connecting portion (112) ) Is used to connect with the mounting bracket (12), and the first mating surface (1111) is the side of the first mating portion (111) facing the second charging piece (21).
The charging docking structure according to claim 6, wherein the connecting portion (112) is located on a side of the first docking portion (111) facing away from the insertion direction.
The charging docking structure according to claim 2, wherein the second charging sheet (21) has a second docking portion (211), and the second docking portion (211) is located on the second charging sheet ( 21), the second mating surface (2111) is the side of the second mating portion (211) facing the first charging piece (11).
The charging docking structure according to claim 2, characterized in that the plug further comprises a limiter (23), and the limiter (23) is connected to the other end of the plug opposite to the plug-in end, and The width of the limiting platform (23) is greater than the width of the plug, and the limiting platform (23) is configured to be unable to be inserted into the charging socket (101).
A charging system for a lawn mower, characterized by comprising a lawn mower body (10), a charging station (20), and the charging docking structure according to any one of claims 1-9, and the first charging sheet (11) It is arranged in the lawn mower body (10), and the second charging piece (21) is arranged in the charging station (20).