Charging device

Abstract

The present invention provides a charging device, including a first charging component and a second charging component matched therewith, wherein the first charging component is provided with an accommodating cavity inside, wherein the accommodating cavity is provided with a first elastic terminal component and a second elastic terminal component, wherein the first elastic terminal component includes a first elastic terminal, wherein the second elastic terminal component includes a second elastic terminal, wherein a conical mouth is provided on one side of the first charging component to avoid the difficulty in docking when the second charging component is docked from a position deviating from the center of the first charging component, wherein a protruding portion is provided on one side of the second charging component, wherein a third elastic terminal and a fourth elastic terminal are provided on the protruding portion, wherein a first protrusion and a second protrusion are provided on the third elastic terminal and the fourth elastic terminal respectively to avoid the second charging component from detaching from the first charging component during the charging process, wherein the terminals are both elastic to avoid poor contact.

Description

Technical Field

[0001] The present invention relates to the technical field of charging devices, and in particular to a charging device for an intelligent lawn mower. Background Art

[0002] With the advancement of science and technology and society, smart devices are increasingly used in our lives, such as smart lawn mowers, smart vacuum cleaners, smart sweepers, etc. In order to adapt to large operating areas, these smart robots are usually equipped with charging stations that match the robots in their operating areas. Smart robots can charge and wait at the charging stations. When they need to work, they automatically drive away from the charging stations with the power of the battery pack to map the operating area, plan routes, and complete the post-operation work.

[0003] However, when the charging port of the smart device is docked with the charging base of the charging station, due to positioning errors or unreasonable structure of the charging port, the charging terminals on the charging device and the charging terminals on the robot may have unstable contact, resulting in additional heat and loss of electric energy; when the robot automatically returns to the charging device to charge, it is difficult for the charging terminals on the robot to dock with the charging terminals on the charging device; during the charging process, the charging terminals on the robot accidentally fall off from the charging terminals on the charging device, and normal charging cannot be achieved.

[0004] Therefore, it is necessary to provide a new charging device to solve the above problems existing in the prior art. Summary of the invention

[0005] The object of the present invention is to provide a charging device that avoids the problems of difficult docking, unstable contact and accidental falling off.

[0006] To achieve the above-mentioned purpose, the charging device of the present invention includes a first charging component and a second charging component adapted thereto, the first charging component and the second charging component are both symmetrical structures, an accommodating cavity is provided inside the first charging component, a first elastic terminal component and a second elastic terminal component are provided in the accommodating cavity, the first elastic terminal component includes a first elastic terminal, the second elastic terminal component includes a second elastic terminal, an embedded space is formed between the first elastic terminal and the second elastic terminal, a tapered opening is provided on one side of the first charging component, the tapered opening is communicated with the embedded space, a protruding portion is provided on one side of the second charging component, a third elastic terminal and a fourth elastic terminal are provided on the protruding portion, the third elastic terminal and the fourth elastic terminal are respectively provided with a first convex point and a second convex point, the protruding portion is used to insert into the embedded space from the tapered opening so that the first elastic terminal and the second elastic terminal are elastically contacted with the third elastic terminal and the fourth elastic terminal respectively.

[0007] The beneficial effects of the present invention are as follows: the first elastic component, the second elastic component, the third elastic component and the fourth elastic component are all elastic, forming elastic contact to avoid unstable contact; a tapered opening is provided on one side of the first charging component to avoid the difficulty in docking when the second charging component is docked from a position deviating from the center of the first charging component; the third elastic terminal and the fourth elastic terminal are respectively provided with a first protrusion and a second protrusion to avoid the second charging component from detaching from the first charging component during the charging process.

[0008] Preferably, the first elastic terminal, the second elastic terminal, the third elastic terminal and the fourth elastic terminal are all bent metal sheets, which has the beneficial effect that the metal sheets increase the contact area and avoid unstable contact.

[0009] Preferably, the first elastic terminal includes a first fixing portion and a first contact portion, the first contact portion includes a first initial contact portion and a first charging contact portion, and the first charging contact portion is connected to the first fixing portion through the first initial contact portion. The beneficial effect is that the first contact portion includes the first initial contact portion and the first charging contact portion, which ensures that the first contact portion is in full contact with the third elastic terminal, avoiding poor contact.

[0010] Preferably, the second elastic terminal includes a second fixing portion and a second contact portion, the second contact portion includes a second initial contact portion and a second charging contact portion, and the second charging contact portion is connected to the second fixing portion via the second initial contact portion. The beneficial effect is that the second contact portion includes the second initial contact portion and the second charging contact portion, which ensures that the second contact portion is in full contact with the fourth elastic terminal, avoiding poor contact.

[0011] Further preferably, the angle between the first charging contact portion and the second charging contact portion is smaller than the angle between the first initial contact portion and the second initial contact portion, and the angle between the first initial contact portion and the second initial contact portion is smaller than the angle of the tapered mouth. The beneficial effect is that the insertion of the protrusion is facilitated, so that the first elastic terminal and the second elastic terminal are in elastic contact with the third elastic terminal and the fourth elastic terminal respectively, avoiding poor contact.

[0012] Further preferably, the first contact portion further includes a first bent tail portion, which is connected to the first charging contact portion, and the second contact portion further includes a second bent tail portion, which is connected to the second charging contact portion, and the first bent tail portion and the second bent tail portion are both facing away from the embedded space. The beneficial effect is that the first charging contact portion and the second charging contact portion are prevented from being stuck to the protrusion.

[0013] Preferably, the third elastic terminal is in the shape of a fishhook, and includes a third fixing portion and a first hook portion, the first protrusion is located at one end where the third fixing portion is connected to the first hook portion, and the other end of the third fixing portion is provided with a first bayonet. The beneficial effect is that the first hook portion facilitates the insertion of the third elastic terminal into the embedded space, and reduces the obstruction of the first component to the third elastic terminal.

[0014] Preferably, the fourth elastic terminal is in the shape of a fishhook, and includes a fourth fixing portion and a second hook portion, the second protrusion is located at one end where the fourth fixing portion and the second hook portion are connected, and the other end of the fourth fixing portion is provided with a second bayonet. The beneficial effect is that the second hook portion facilitates the insertion of the fourth elastic terminal into the embedded space, and reduces the obstruction of the first component to the fourth elastic terminal.

[0015] Preferably, the protrusion includes a protrusion terminal fixing assembly, which has the beneficial effect of facilitating the fixing of the third elastic terminal and the fourth elastic terminal.

[0016] Further preferably, the protruding terminal fixing assembly includes a first fixing plate, a second fixing plate and a built-in plate, the first fixing plate and the second fixing plate are arranged on both sides of the built-in plate, a first embedded groove is arranged between the first fixing plate and the built-in plate, a first fixing buckle is arranged on the side of the first fixing plate facing away from the built-in plate, the first hook is embedded in the first embedded groove, the first bayonet is detachably connected to the first fixing buckle, a second embedded groove is arranged between the second fixing plate and the built-in plate, a second fixing buckle is arranged on the side of the second fixing plate facing away from the built-in plate, the second hook is embedded in the second embedded groove, and the second bayonet is detachably connected to the second fixing buckle. Its beneficial effect is that it is convenient to fix the third elastic terminal and the fourth elastic terminal, and prevent the third elastic terminal and the fourth elastic terminal from falling off.

[0017] Further preferably, there are two contact points between the first elastic terminal and the third elastic terminal, namely: the connection between the first initial contact portion and the first charging contact portion is in elastic contact with the third fixing portion; the first charging contact portion is in elastic contact with the first convex point. The beneficial effect is that the two contact points increase the stability of the contact between the first elastic terminal and the third elastic terminal.

[0018] Further preferably, there are two contact points between the second elastic terminal and the fourth elastic terminal, namely: the connection between the second initial contact portion and the second charging contact portion is in elastic contact with the fourth fixing portion; the second charging contact portion is in elastic contact with the second protrusion. The beneficial effect is that the two contact points increase the stability of the contact between the second elastic terminal and the fourth elastic terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic cross-sectional structural diagram of a first charging assembly of the present invention;

[0020] Figure 2 is a schematic structural diagram of a first elastic terminal of the present invention;

[0021] Figure 3 is a schematic structural diagram of a second charging assembly of the present invention;

[0022] Figure 4 is a schematic structural diagram of a third elastic terminal of the present invention;

[0023] Figure 5 is a cross-sectional view of a second charging assembly of the present invention;

[0024] Figure 6 It is a schematic structural diagram of a first fixing buckle of the present invention;

[0025] Figure 7 A schematic diagram of a first process used by the first charging component and the second charging component of the present invention;

[0026] Figure 8 A schematic diagram of a second process used by the first charging assembly and the second charging assembly of the present invention. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be understood by people with general skills in the field to which the present invention belongs. "Including" and similar words used in this article mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0028] In view of the problems existing in the prior art, an embodiment of the present invention provides a charging device, which includes a first charging component and a second charging component adapted thereto.

[0029] Figure 1 FIG. 1 is a schematic cross-sectional view of the first charging assembly in some embodiments of the present invention. Figure 1 The first charging component 10 is a symmetrical structure. A accommodating cavity 11 is provided inside the first charging component 10. A first elastic terminal component 12 and a second elastic terminal component 13 are provided in the accommodating cavity 11. The first elastic terminal component 12 includes a first groove 121 and a first elastic terminal 122. The first groove 121 is fixed in the accommodating cavity 11. The first elastic terminal 122 is fixed in the first groove 121. The second elastic terminal component 13 includes a second groove 131 and a second elastic terminal 132. The second groove 131 is fixed in the accommodating cavity 11. The second elastic terminal 132 is fixed in the second groove 131. An embedded space 14 is formed between the first elastic terminal 122 and the second elastic terminal 132. A conical mouth 15 is provided on one side of the first charging component 10. The conical mouth 15 is communicated with the embedded space 14. A first mounting portion 16 is provided at the end of the first charging component 10 opposite to the conical mouth 15.

[0030] In some embodiments of the present invention, the first mounting portion is mounted on a charging device or a device to be charged.

[0031] Figure 2 FIG. 1 is a schematic diagram of the structure of the first elastic terminal in some embodiments of the present invention. Figure 1 and Figure 2 The first elastic terminal 122 includes a first fixed portion 1221 and a first contact portion 1222, the first contact portion 1222 includes a first initial contact portion 12221 and a first charging contact portion 12222, the first charging contact portion 12222 is connected to the first fixed portion 1221 through the first initial contact portion 12221, the first fixed portion 1221 is fixed in the first groove 121, the first contact portion 1222 also includes a first bent tail portion 12223, the first bent tail portion 12223 is connected to the first charging contact portion 12222, wherein the first fixed portion 1221 and the first initial contact portion 12221 form a first fillet (not shown in the figure), the angle of the first fillet is less than 90 degrees, the first initial contact portion 12221 and the first charging contact portion 12222 form a second fillet (not shown in the figure), the angle of the second fillet is greater than 90 degrees and less than 180 degrees, and the first bent tail portion 12223 is facing away from the embedded space 14. The fillet angle should be understood as the angle at which the extension lines of the two sides of the fillet intersect.

[0032] In some embodiments of the present invention, the second elastic terminal has the same structure as the first elastic terminal. Specifically, the second elastic terminal includes a second fixed portion and a second contact portion, the second contact portion includes a second initial contact portion and a second charging contact portion, the second charging contact portion is connected to the second fixed portion through the second initial contact portion, the second fixed portion is fixed in the second groove, the second contact portion also includes a second bent tail portion, the second bent tail portion is connected to the second charging contact portion, wherein the second fixed portion and the second initial contact portion form a third fillet, the angle of the third fillet is less than 90 degrees, the second initial contact portion and the second charging contact portion form a fourth fillet, the angle of the fourth fillet is greater than 90 degrees and less than 180 degrees, and the second bent tail portion faces away from the embedded space. The fillet angle should be understood as the angle at which the extension lines of the two sides of the fillet intersect.

[0033] In some embodiments of the present invention, the first fixing portion and the second fixing portion are both provided with a first threading hole, and the first threading hole is used for connecting with a wire.

[0034] In some embodiments of the present invention, the first fixing portion is parallel to the second fixing portion, the angle between the first charging contact portion and the second charging contact portion is smaller than the angle between the first initial contact portion and the second initial contact portion, and the angle between the first initial contact portion and the second initial contact portion is smaller than the angle of the tapered mouth. The angle between the first charging contact portion and the second charging contact portion should be understood as the angle at which the extension lines of the two portions intersect, the angle between the first initial contact portion and the second initial contact portion should be understood as the angle at which the extension lines of the two portions intersect, and the angle of the tapered mouth should be understood as the angle at which the extension lines of the two oblique sides of the tapered mouth intersect.

[0035] Figure 3 FIG. 1 is a schematic diagram of the structure of the second charging component in some embodiments of the present invention. Figure 3 The second charging component 20 is a symmetrical structure. A protrusion 21 is provided on one side of the second charging component 20. A second mounting portion 22 is provided on the side of the second charging component 20 opposite to the protrusion 21. The protrusion 21 is connected to the second mounting portion 22 through a tapered portion 23. The protrusion 21 is provided with a third elastic terminal 24 and a fourth elastic terminal 25.

[0036] In some embodiments of the present invention, the second mounting portion is mounted on a charging device or a device to be charged.

[0037] In some specific embodiments of the present invention, the device to be charged is a smart lawn mower.

[0038] Figure 4 FIG. 1 is a schematic diagram of the structure of the third elastic terminal in some embodiments of the present invention. Figure 4 The third elastic terminal 24 is in the shape of a fishhook, and includes a third fixing portion 241 and a first hook portion 242. The third fixing portion 241 is provided with a first protrusion 243 and a first bayonet 244. The first protrusion 243 is located at one end where the third fixing portion 241 is connected to the first hook portion 242, and the first protrusion 243 is located on the side of the third fixing portion 241 facing away from the first hook portion 242. The first bayonet 244 is located at one end of the third fixing portion 241 away from the first hook portion 242.

[0039] In some embodiments of the present invention, the structure of the fourth elastic terminal is the same as that of the third elastic terminal. Specifically, the fourth elastic terminal includes a fourth fixing portion and a second hook portion, and the fourth fixing portion is provided with a second protrusion and a second bayonet, the second protrusion is located at an end where the fourth fixing portion is connected to the second hook portion, and the second protrusion is located on a side of the fourth fixing portion that is away from the second hook portion, and the second bayonet is located at an end of the fourth fixing portion away from the second hook portion.

[0040] In some embodiments of the present invention, the third fixing portion and the fourth fixing portion are both provided with a second threading hole, and the second threading hole is used for connecting with a wire.

[0041] Figure 5 2 is a cross-sectional view of the second charging component in some embodiments of the present invention. Figures 3 to 5The protruding portion 21 includes a protruding portion terminal fixing component 211, a lower cover plate 212 and an upper cover plate (not shown in the figure), the protruding portion terminal fixing component 211 is arranged between the lower cover plate 212 and the upper cover plate (not shown in the figure), the protruding portion terminal fixing component 211 includes a first fixing plate 2111, a second fixing plate 2112 and a built-in plate 2113, the first fixing plate 2111 and the second fixing plate 2112 are arranged on both sides of the built-in plate 2113, a first embedded groove 2114 is provided between the first fixing plate 2111 and the built-in plate 2113, the first fixing plate 2111 is facing away from the built-in plate A first fixing buckle 2115 is provided on one side of the plate 2113, the first curved hook portion 242 is embedded in the first embedded groove 2114, the first bayonet 244 is detachably connected to the first fixing buckle 2115, a second embedded groove 2116 is provided between the second fixing plate 2112 and the built-in plate 2113, a second fixing buckle (not shown in the figure) is provided on the side of the second fixing plate 2112 facing away from the built-in plate 2113, the second curved hook portion (not shown in the figure) is embedded in the second embedded groove 2116, and the second bayonet (not shown in the figure) is detachably connected to the second fixing buckle (not shown in the figure).

[0042] In some embodiments of the present invention, the first hook portion is provided with a first blocking opening, the first embedded groove is provided with a first baffle, the first baffle is embedded in the first blocking opening to prevent the first hook portion from moving up and down, the second hook portion is provided with a second blocking opening, the second embedded groove is provided with a second baffle, the second baffle is embedded in the second blocking opening to prevent the second hook portion from moving up and down.

[0043] Figure 6 Schematic diagram of the structure of the first fixing buckle in some embodiments of the present invention. The structure of the second fixing buckle is the same as that of the first fixing buckle. Figure 6 The first fixing buckle 2115 has an inclined surface 21151 and a vertical surface 21152. The inclined surface 21151 and the vertical surface 21152 are located on opposite sides of the first fixing buckle 2115, and the inclined surface 21151 faces the first hook portion (not shown in the figure). The inclined surface 21151 facilitates the first fixing buckle 2115 to be inserted into the first bayonet 244, and the vertical surface 21152 prevents the first fixing buckle 2115 from being separated from the first bayonet 244.

[0044] Figure 7 FIG. 1 is a schematic diagram of a first process used by the first charging component and the second charging component in some embodiments of the present invention. Figure 1 , Figure 2 , Figure 3 and Figure 7 , the distance between the first charging contact portion 12222 and the second charging contact portion 1321 is smaller than the distance between the third elastic terminal 24 and the fourth elastic terminal 25. The second charging component 20 is inserted into the first charging component 10 along the X direction. During the first use of the first charging component 10 and the second charging component 20, the third elastic terminal 24 elastically contacts the first initial contact portion 12221, and the fourth elastic terminal 25 elastically contacts the second initial contact portion 1322. When the second charging component 20 is inserted into the first charging component 10 along the X direction, the protrusion 21 is more easily inserted into the conical opening 15 due to the larger opening of the conical opening 15. The side wall of the conical opening 15 guides the insertion direction of the protrusion 21. Under the guidance of the side wall, the protrusion 21 slides into the embedded space 14 along the side wall.

[0045] Figure 8 FIG. 1 is a schematic diagram of a second process used by the first charging component and the second charging component in some embodiments of the present invention. Figure 1 , Figure 2 , Figure 4 and Figure 8 , the second charging component 20 is inserted into the first charging component 10 along the X direction, and in the second process of using the first charging component 10 and the second charging component 20, the protrusion 21 is inserted into the embedded space (not shown in the figure), and the connection between the first initial contact portion 12221 and the first charging contact portion 12222 is elastically in contact with the third fixing portion 241, the first charging contact portion 12222 is elastically in contact with the first protrusion 243, the connection between the second initial contact portion 1322 and the second charging contact portion 1321 is elastically in contact with the fourth fixing portion 251, the second charging contact portion 1321 is elastically in contact with the second protrusion 253, and the tapered portion 23 matches the shape of the tapered mouth 15, and the tapered portion 23 fills the tapered mouth 15.

[0046] The first elastic terminal is in elastic contact with the third elastic terminal, and there are two contact points between the first elastic terminal and the third elastic terminal, and the first protrusion is also caught at the connection between the first initial contact portion and the first charging contact portion; the second elastic terminal is in elastic contact with the fourth elastic terminal, and there are two contact points between the second elastic terminal and the fourth elastic terminal, and the second protrusion is also caught at the connection between the second initial contact portion and the second charging contact portion; the stability of the contact is ensured, and the second charging component is prevented from falling off from the first charging component.

[0047] In some embodiments of the present invention, the first elastic terminal, the second elastic terminal, the third elastic terminal and the fourth elastic terminal are all bent metal sheets.

[0048] Although the embodiments of the present invention are described in detail above, it is obvious to those skilled in the art that various modifications and variations can be made to these embodiments. However, it should be understood that such modifications and variations are within the scope and spirit of the present invention as described in the claims. Moreover, the present invention described herein may have other embodiments and may be implemented or realized in a variety of ways.

Claims

1. A charging device, applied to a smart lawn mower, It is characterized in that The invention comprises a first charging component and a second charging component matched therewith, wherein the first charging component and the second charging component are both of symmetrical structures, an accommodating cavity is provided inside the first charging component, a first elastic terminal component and a second elastic terminal component are provided inside the accommodating cavity, the first elastic terminal component comprises a first elastic terminal, the second elastic terminal component comprises a second elastic terminal, an embedded space is formed between the first elastic terminal and the second elastic terminal, a conical opening is provided on one side of the first charging component, the conical opening is communicated with the embedded space, a protruding portion is provided on one side of the second charging component, a third elastic terminal and a fourth elastic terminal are provided on the protruding portion, the third elastic terminal and the fourth elastic terminal are respectively provided with a first protrusion and a second protrusion, the protruding portion is used to be inserted into the embedded space from the conical opening so that the first elastic terminal and the second elastic terminal are respectively in elastic contact with the third elastic terminal and the fourth elastic terminal.

2. The charging device according to claim 1, It is characterized in that The first elastic terminal, the second elastic terminal, the third elastic terminal and the fourth elastic terminal are all bent metal sheets.

3. The charging device according to claim 1, It is characterized in that The first elastic terminal includes a first fixing portion and a first contact portion, the first contact portion includes a first initial contact portion and a first charging contact portion, and the first charging contact portion is connected to the first fixing portion through the first initial contact portion.

4. The charging device according to claim 3, It is characterized in that The second elastic terminal includes a second fixing portion and a second contact portion, the second contact portion includes a second initial contact portion and a second charging contact portion, and the second charging contact portion is connected to the second fixing portion through the second initial contact portion.

5. The charging device according to claim 4, It is characterized in that An angle between the first charging contact portion and the second charging contact portion is smaller than an angle between the first initial contact portion and the second initial contact portion, and an angle between the first initial contact portion and the second initial contact portion is smaller than an angle of the tapered mouth.

6. The charging device according to claim 5, It is characterized in that The first contact portion further includes a first bent tail portion, which is connected to the first charging contact portion. The second contact portion further includes a second bent tail portion, which is connected to the second charging contact portion. The first bent tail portion and the second bent tail portion both face away from the embedded space.

7. The charging device according to claim 6, It is characterized in that The third elastic terminal is in the shape of a fishhook and includes a third fixing portion and a first hook portion. The first protrusion is located at one end where the third fixing portion and the first hook portion are connected. The other end of the third fixing portion is provided with a first bayonet.

8. The charging device according to claim 7, It is characterized in that The fourth elastic terminal is in the shape of a fishhook and includes a fourth fixing portion and a second hook portion. The second protrusion is located at one end where the fourth fixing portion and the second hook portion are connected. The other end of the fourth fixing portion is provided with a second bayonet.

9. The charging device according to claim 8, It is characterized in that The projection includes a projection terminal fixing assembly.

10. The charging device according to claim 9, It is characterized in that The protruding terminal fixing assembly includes a first fixing plate, a second fixing plate and a built-in plate, the first fixing plate and the second fixing plate are arranged on both sides of the built-in plate, a first embedded groove is provided between the first fixing plate and the built-in plate, a first fixing buckle is provided on the side of the first fixing plate facing away from the built-in plate, the first bent hook is embedded in the first embedded groove, the first bayonet is detachably connected to the first fixing buckle, a second embedded groove is provided between the second fixing plate and the built-in plate, a second fixing buckle is provided on the side of the second fixing plate facing away from the built-in plate, the second bent hook is embedded in the second embedded groove, and the second bayonet is detachably connected to the second fixing buckle.

11. The charging device according to claim 7, It is characterized in that There are two contact points between the first elastic terminal and the third elastic terminal, namely: the connection between the first initial contact portion and the first charging contact portion is in elastic contact with the third fixing portion; the first charging contact portion is in elastic contact with the first protrusion.

12. The charging device according to claim 8, It is characterized in that There are two contact points between the second elastic terminal and the fourth elastic terminal, which are: the connection between the second initial contact portion and the second charging contact portion is in elastic contact with the fourth fixing portion; The second charging contact portion is in elastic contact with the second protrusion.

Images