CN109301625B - Charging device and charging station - Google Patents

Abstract

The invention provides a charging device and a charging station, and relates to the technical field of charging. The invention relieves the technical problem of the prior art that the charging and docking difficulty of the mobile machine is high.

Description

Charging device and charging station

Technical Field

The present invention relates to the field of charging technologies, and in particular, to a charging device and a charging station.

Background

A mobile machine, such as a Robot (Robot), is a machine device that automatically performs work. It can accept human command, run pre-programmed program and act according to the principle of artificial intelligent technology. Its task is to assist or replace human work such as the industry, construction, or other dangerous work.

At present, the mobile machine is widely applied to the fields of electronic commerce, intelligent factories and the like, and generally needs to be charged, and as the moving track of the mobile machine in the charging docking process is inaccurate, the docking charging can be completed only by adjusting the position of the mobile machine for many times, so that the docking difficulty is high.

Disclosure of Invention

The invention aims to provide a charging device and a charging station, so as to solve the technical problem of high charging docking difficulty of a mobile machine in the prior art.

The first aspect of the invention provides a charging device, which comprises a sliding rail arranged on a charging frame and a socket slidingly connected with the sliding rail, wherein the socket is provided with a charging end, and the socket can slide along the sliding rail under the action of external force so as to enable the charging end to be in butt joint with a plug for supplying power.

Further, the charging end is in a dovetail shape, and a socket for butting a plug is formed in the opening side of the dovetail shape.

Further, be connected with reset assembly between socket and the charging frame, reset assembly is used for providing the effort that returns to initial position to the socket.

Further, the reset assembly comprises a first spring, one end of the first spring is connected to the socket, and the other end of the first spring is connected to the charging frame.

Further, the reset assembly further comprises a first sliding block which is connected with the sliding rail in a sliding way, and the sliding rail is divided into a first area for the socket to independently slide and a second area for the socket to slide together with the first sliding block; the first spring is connected with the charging frame through a first sliding block.

Further, be connected with the locating part that is used for restricting first slider in the second district on the first slider, the locating part has the free end, and the free end of locating part stretches out the edge of first slider and when first slider is located the juncture of first district and second district, the free end is spacing to abut with charging frame.

Further, the charging device further comprises a connecting plate connected to the first sliding block, and the free end of the limiting piece extends out of the connecting plate.

Further, the reset assembly further comprises a second spring, and the first spring and the second spring are respectively arranged at two sides of the socket along the sliding direction of the sliding rail; one end of the second spring is connected to the socket, and the other end of the second spring is connected to the charging frame.

Further, reset assembly includes the second spring, and the one end fixed connection of second spring is at first slider, and the other end fixed connection is at charging frame.

Further, the first spring and the second spring are both positioned between the first slider and the socket.

Further, the charging device further comprises a second sliding block, the second sliding block is arranged on the sliding rail in a sliding mode, the socket is fixedly connected to the second sliding block, and the socket slides on the sliding rail through the second sliding block.

Further, the socket is rotatably connected with the second sliding block through the rotating shaft, and the socket can rotate around the axis of the rotating shaft.

Further, a round table-shaped charging groove is formed in the charging end.

Further, the two ends of the sliding rail are respectively provided with a blocking piece.

The second aspect of the invention provides a charging station comprising the charging device.

The invention provides a charging device which comprises a sliding rail arranged on a charging frame and a socket connected with the sliding rail in a sliding way, wherein the socket is provided with a charging end, and the socket can slide along the sliding rail under the action of external force so as to enable the charging end to be in butt joint with a plug for supplying power. When the mobile machine needs to be charged, the mobile machine moves to be close to the socket, at the moment, if an error occurs in the butt joint of the plug and the socket of the mobile machine and the plug continues to be inserted into the socket, the plug contacts the socket and gives a component force for sliding the socket along the sliding direction of the sliding rail, and the socket slides along the sliding rail to adjust the position, so that the socket and the plug are gradually opposite to each other until the plug is inserted into the socket, and the charging is completed. The invention relieves the technical problem of the prior art that the mobile machine has large charging and docking difficulty.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a charging device according to an embodiment of the present invention when a poor line contact occurs between a plug and a socket;

fig. 2 is a schematic structural diagram of a charging device according to an embodiment of the present invention when a point contact failure occurs between a plug and a socket;

fig. 3 is a schematic diagram of an overall structure of a charging device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of zero-error docking between a plug and a socket when the charging device provided by the embodiment of the invention is in an ideal state;

Fig. 5 is a schematic structural diagram of a charging device according to an embodiment of the present invention when a plug is deviated left;

fig. 6 is a schematic structural diagram of a charging device according to an embodiment of the present invention when a plug is deviated to the right.

Icon: 100-sockets; 110-a charging terminal; 200-frames; 300-reset component; 310-a first spring; 320-a second spring; 330-a first slider; 331-a limiting piece; 332-connecting plates; 340-a second slider; 400-sliding rails; 410-a stopper; 500-plug.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

AGV mobile robot and intelligent automation equipment which are applied to the fields of electronic commerce, intelligent factories and the like in large quantities at present all adopt an automatic charging mode. The traditional mechanical charging mechanism is limited to the constraint of the actual working environment and the characteristics of the product, and does not have the functions of self-accurate alignment charging and reset after charging. In addition, due to inaccurate automatic guiding, various problems such as poor charging contact and the like can be caused, and even safety risks are caused.

The inventor has developed a charging device and a charging station to alleviate the above-mentioned problems, and the technical problem of the above-mentioned technology that the difficulty of charging docking is large is solved by arranging the socket in a form that can slide on the slide rail.

The mobile machine in this embodiment will be described with reference to a mobile robot as an example.

The left-right direction, the front-rear direction, and the up-down direction in this embodiment are directions when the orientation of the charging device in fig. 4 is taken as a reference.

First, referring to fig. 3, fig. 3 is a schematic diagram of an overall structure of a charging device according to an embodiment of the present invention, the charging device includes a sliding rail 400 disposed on a charging frame 200 and a socket 100 slidably connected with the sliding rail 400, the socket 100 has a charging end 110, and the socket 100 can slide along the sliding rail 400 under the action of an external force, so that the charging end 110 is in butt joint with a plug 500 for supplying power.

When the mobile robot needs to be charged, the mobile robot moves close to the socket 100, and at this time, if an error occurs in the butt joint of the plug 500 and the socket 100 of the mobile robot, when the plug 500 continues to be inserted into the socket 100, the plug 500 touches the socket 100 and gives the socket 100 a component force sliding along the sliding direction of the sliding rail 400, and the socket 100 slides along the sliding rail 400 to adjust the position, so that the socket 100 is gradually aligned with the plug 500 until the plug 500 is inserted into the socket 100, and the charging is completed. According to the embodiment of the invention, the technical problem of high charging and docking difficulty of the mobile robot in the prior art is solved.

In the present embodiment, the sliding rail 400 not only guides the socket 100 to slide along the set track, but since the error point when the plug 500 is docked with the socket 100 cannot be accurately predicted, the movable track of the socket 100 is preferably diversified to adapt to different insertion positions of the plug 500. The shape of the sliding rail 400 may be linear, star-shaped, rectangular, triangular, etc. In order to flexibly adjust the position of the socket 100, the sliding rail 400 may be configured as a cross shape, that is, the socket 100 may slide on the sliding rail 400 in the left-right direction and the up-down direction. Further, the sliding rail 400 may be formed in a shape of a plurality of cross-shaped combinations, the ends of the plurality of cross-shaped combinations are connected end to end, and the socket 100 may slide on one cross to another cross adjacent to the one cross; preferably, the plurality of cross-shaped members share the same cross rail.

During the sliding process of the socket 100 along the sliding rail 400, the socket 100 may slide widely, even slide out of the sliding rail 400, under the action of a large external force. To prevent this, a stopper 410 is provided at an end of the slide rail 400 to prevent the socket 100 from sliding out of the slide rail 400. Further, the sliding rail 400 in the present embodiment is a linear sliding rail 400, and two ends of the sliding rail 400 are respectively provided with a stopper 410. The stopper 410 may be a nut or a baffle plate sleeved at both ends of the slide rail 400.

In order to gradually adjust the position of the socket 100 to achieve the alignment charging between the socket 100 and the plug 500, in this embodiment, the charging end 110 is configured as a dovetail shape, and the opening side of the dovetail shape is provided with a socket for docking the plug 500. Specifically, along the sliding direction of the sliding rail 400, two opposite inner side walls are disposed in the socket, and along the insertion direction of the plug 500, the two opposite inner side walls are disposed obliquely. For example, the socket is trapezoidal, and along the insertion direction of the plug 500, the top end of the trapezoid is the bottommost end of the socket. The structure of the insertion end of the plug 500 is matched with the socket, and similarly, the plug 500 is also trapezoid, and the top end of the trapezoid is the insertion end of the plug 500. The socket and plug 500 has at least two basic planes, i.e., two opposite inner side walls of the socket in the sliding direction of the slide rail 400, which are obliquely arranged in the insertion direction. One of the reasons for providing the contact surface as a ramp surface is that the ramp surface may act as a guiding surface along which the plug 500 gradually slides into the socket during the gradual insertion of the plug 500. The second reason for the contact surface being provided as a slope is that the plug 500 imparts a force component to the sliding of the socket 100 on the slide rail 400 through the guide slope, driving the socket 100 to slide.

The sliding direction of the socket 100 on the slide rail 400 in fig. 3 is set to be a left-right direction, and the drawing is seen in elevation, for example, the plug 500 has a first inclined surface on the left side and a second inclined surface on the right side, the socket 100 has a third inclined surface on the left side and a fourth inclined surface on the right side, and the third inclined surface cooperates with the first inclined surface and the fourth inclined surface cooperates with the second inclined surface during the insertion of the plug 500 into the socket 100. When the plug 500 is biased to the left, the third inclined surface of the plug 500 contacts the first inclined surface of the socket first, and the plug 500 applies a left force component to the socket 100, which will drive the socket 100 to move to the left along the slide rail 400. During insertion of the plug 500 into the socket 100 along the guide slope (at this time, the guide slope is the first slope), the socket 100 moves to the left to the aligned position, thereby completing the positive charging. When the plug 500 is biased to the right, the fourth inclined surface of the plug 500 is first contacted with the second inclined surface of the socket 100, and the plug 500 applies a right component force to the socket 100, and the right component force drives the socket 100 to move to the right along the sliding rail 400. During insertion of the plug 500 into the socket 100 along the guide slope (at this time, the guide slope is the second slope), the socket 100 moves rightward to the aligned position, thereby completing the positive charging.

The inventor found that, although the plug 500 can be aligned with the socket 100 by sliding the socket 100 on the slide rail 400, the socket 100 is in a deviated state after the plug 500 is separated from the socket 100 every time the charging is completed, and cannot return to the initial position normally, so that the next charging is inconvenient. To alleviate the above-described problems, the inventors have developed a reset assembly 300 applicable to the charging device for providing a force to the socket 100 from a deviated position back to an initial position.

With continued reference to fig. 3, a reset assembly 300 is connected between the socket 100 and the charging frame 200, and the reset assembly 300 is used for providing a force for returning to the initial position to the socket 100. The initial position is a position when the plug 500 and the socket 100 of the mobile robot are both in zero error alignment charging.

First, the reset assembly 300 includes a first spring. There are various ways of connecting the first spring, one of which is that one end of the first spring is connected to the socket and the other end is connected to a charging frame (not shown in the drawing of this connection form) on the left side of the socket. Specifically: when the socket is at the initial position, the first spring is in a natural state. When the plug is left biased to the initial position of the socket, the plug gives a component force for sliding leftwards to the socket during the process of inserting the plug into the socket, the socket slides leftwards to be in butt joint with the plug for charging, and at the moment, the first spring is compressed. When the mobile robot is charged, the plug is separated from the socket, and the first spring stretches to push the socket to return to the initial position. When the plug is right-biased to the initial position of the socket, the plug gives a component force for rightward sliding to the socket in the process of inserting the plug into the socket, and the socket slides rightward to be in butt joint with the plug for charging. At this time, the first spring is stretched. When the mobile robot is charged, the plug is separated from the socket, and the first spring is retracted to a natural state and pulls the socket to return to the initial position. The other is that one end of the first spring is connected with the socket, and the other end is connected with the charging frame on the right side of the socket. The working principle is referred to above and is not described here.

The reset component realizes that the socket returns to the initial position from the left-right offset position through the first spring, and the problem that the elastic capacity of the first spring is reduced due to the fact that the use frequency is too high is inevitably caused. In order to further improve the resetting capability of the resetting assembly, the resetting assembly further comprises a second spring, and the first spring and the second spring are respectively arranged at two sides of the socket along the sliding direction of the sliding rail; one end of the first spring is connected to the socket, the other end is connected to the charging frame, one end of the second spring is connected to the socket, and the other end is connected to the charging frame (this connection type is not shown in the drawings). When the socket is at the initial position, the first spring and the second spring are both in a natural state. When the plug is left biased to the initial position of the socket, the plug gives a component force for sliding the socket leftwards during the process of inserting the plug into the socket, and the socket slides leftwards to charge the plug. At this time, the first spring is compressed, and the second spring is stretched. When the mobile robot is charged, the plug is separated from the socket, the first spring stretches to a natural state, the second spring contracts to the natural state, and the socket returns to the initial position. When the plug is right biased to the initial position of the socket, the plug gives a component force for rightward sliding to the socket during the process of inserting the plug into the socket, and the socket slides rightward to be in butt joint with the plug. At this time, the second spring is contracted, and the first spring is stretched. When the mobile robot is charged, the plug is separated from the socket, the first spring is contracted to a natural state, the second spring is stretched to the natural state, and the socket returns to the initial position.

The initial position in the above embodiment is the position of the socket when the first spring and the second spring are both in the natural state, but the spring has a certain service life, the elasticity of the spring will gradually decrease along with the extension of the service time, and when the plurality of plugs continuously deflect left or right for many times, one of the first spring or the second spring will be damaged singly, so that the elasticity of the first spring or the second spring decreases, and the initial position of the socket will be changed. In order to alleviate the above problem, the inventor slides the first slider on the slide rail, and targets the initial position by the limited sliding of the first slider.

Specifically, with continued reference to fig. 3, the reset assembly 300 includes a first slider 330 slidably coupled to a sliding rail 400, the sliding rail 400 being divided into a first region in which the socket 100 slides alone and a second region in which the socket 100 and the first slider 330 slide together; the first spring 310 is connected to the charging frame 200 through a first slider 330. When the first slider 330 is at a position where the first region and the second region are separated and cannot move toward the first region, the position where the socket 100 is seamlessly adjacent to the first slider 330 is the initial position of the socket 100.

In order to realize the separation of the first area and the second area, the initial position of the socket 100 is clarified, a limiting piece 331 for limiting the first slider 330 in the second area is fixedly arranged on the first slider 330, the limiting piece 331 is provided with a free end, the free end of the limiting piece 331 extends out of the edge of the first slider 330, and when the first slider 330 is positioned at the junction of the first area and the second area, the free end is limited and abutted against the charging frame 200. Referring to fig. 3, the charging device further includes a connecting plate 332 connected to the first slider 330, and a free end of the limiting member 331 extends from the connecting plate 332. The connecting plate 332 is a fixed plate, the connecting plate 332 is fixed on the outer surface of the first slider 330 through bolts, the free end of the limiting piece 331 extends out of the connecting plate 332 and then is bent, and the bending part is used for limiting and abutting with the charging frame 200.

The connection plate 332 further extends beyond a fixed end, and one end of the first spring 310 is connected to the socket 100, and the other end is connected to the fixed end. Further, the first spring 310 is fixed to the socket 100 and the fixed end by both ends of the bolt. The first spring 310 is disposed at an upper portion of the socket 100, the bolt is inserted into the socket 100 from top to bottom, the fixed end has a fixing surface, the fixing surface is horizontally disposed, and the other end of the first spring 310 is fixed by the bolt inserted into the fixing surface from top to bottom.

The free end of the limiting member 331 extends upward from the connecting plate 332 and then bends backward, when the first slider 330 is about to slide out of the second area to the left along the sliding direction of the sliding rail 400, the free end of the limiting member 331 contacts the charging frame 200, and the first slider 330 is prevented from sliding out of the second area. On the basis of the first slider 330, the second spring 320 included in the reset assembly 300 may have one end fixedly connected to the free end of the limiting member 331 and the other end fixedly connected to the charging frame 200. Specifically, both ends of the second spring 320 are fixed by bolts, the free end has a vertical plane, one end of the second spring 320 is supported by bolts inserted into the charging frame 200 from front to back, and the other end is supported by bolts inserted into the vertical plane of the free end from front to back.

In order to maintain the coordinated force between the first spring 310 and the second spring 320, the first spring 310 and the second spring 320 are both positioned between the first slider 330 and the socket 100, avoiding the inconsistent elastic force of the first spring 310 and the second spring 320 due to multiple uses. That is, each time the first spring 310 uses a tensile force to achieve the docking reset of the leftward movement of the socket 100, the second spring 320 also uses a tensile force to achieve the docking reset of the rightward movement of the socket 100. Specifically, one end of the second spring 320 is connected to the first slider 330, and the other end is connected to the charging frame 200 opposite to the first region. Further, the first spring 310 and the second spring 320 are provided with the same spring.

Since the general socket 100 has a complicated structure such as current introduction, if the socket 100 is directly connected to the slide rail 400, the space for the circuit device may be reduced. Therefore, the charging device further includes a second slider 340, the second slider 340 is slidably disposed on the sliding rail 400, the socket 100 is fixedly connected to the second slider 340, and the socket 100 slides on the sliding rail 400 through the second slider 340.

Next, the use process of the charging device shown in fig. 3 will be described.

Fig. 4 is a schematic structural diagram of zero-error docking between a plug 500 and a socket 100 when the charging device provided in the embodiment of the invention is in an ideal state; fig. 5 is a schematic structural diagram of a charging device according to an embodiment of the present invention when a plug 500 is left-deviated; fig. 6 is a schematic structural diagram of the charging device according to the embodiment of the present invention when the plug 500 is deviated to the right. Please refer to fig. 4, fig. 5 and fig. 6. When the plug 500 is aligned with the receptacle 100, as shown in fig. 4, the plug 500 is directly inserted into the socket of the receptacle 100, and the receptacle 100 does not undergo any movement. When the plug 500 is left-biased with respect to the socket 100, as shown in fig. 5, the plug 500 gives a component force to the socket 100 to slide leftwards during the insertion of the plug 500 into the socket of the socket 100, the socket 100 slides leftwards under the action of the leftwards component force, and the first spring 310 is stretched; when the charging is completed, the plug 500 is disengaged from the socket 100, and the socket 100 returns to the initial position under the force of the first spring 310. When the plug 500 is deviated to the right with respect to the socket 100, as shown in fig. 6, the plug 500 gives a component force to the socket 100 to slide to the right during the insertion of the plug 500 into the socket of the socket 100, the socket 100 pushes the first slider 330 to slide together to the right by the action of the component force to the right, and the second spring 320 is stretched; when the charging is completed, the plug 500 is separated from the socket 100, the second spring 320 is contracted, the second spring 320 drives the first slider 330 to slide back, and the socket 100 returns to the initial position under the action of the first slider 330.

In order to illustrate the specific situation of the follow-up adjustment when the plug 500 and the socket 100 are in poor contact, which may be encountered by the charging frame provided in this embodiment, please refer to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of the charging device in which the plug 500 and the socket 100 are in poor line contact; when the plug 500 contacts the socket 100, one side of the plug 500 contacts an inner side line of the socket 100, and at this time, the plug 500 gives the socket 100 a component force of lateral movement, and the socket 100 is laterally moved by the component force until it is adjusted to a position aligned with the plug 500, thereby achieving alignment charging. FIG. 2 is a schematic diagram of a charging device with poor point contact between a plug and a receptacle; when the plug 500 is in point contact with the socket 100, one end of one side of the plug 500 is in point contact with an inner side of the socket 100, and at this time, the plug 500 gives the socket 100 a component force of lateral movement, and the socket 100 is laterally moved by the component force until being adjusted to a position aligned with the plug 500, thereby achieving alignment charging.

The above has described that the alignment charging of the socket 100 with the plug 500 is achieved by the linear movement of the socket 100, and the following description will describe a case that the socket 100 is achieved by rotating itself to eliminate errors to align the charging with the plug 500.

The inventors have found that in some cases there may be a positional offset between the plug 500 and the receptacle 100, which may be a need for rotation of the receptacle 100 to bring the plug 500 into alignment with the receptacle 100. For example, when the plug 500 is rectangular, the socket 100 is also rectangular, and when a certain angle is formed between the plug 500 and the socket 100, the rotation of the socket 100 can be achieved. The inventor connects the socket 100 with the second slider 340 through a rotation shaft, and the socket 100 can rotate around the axis of the rotation shaft. Wherein, the axis direction of the rotating shaft is the front-back direction.

At this time, the charging end 110 may be provided with a circular truncated cone-shaped charging slot, and the plug 500 is also circular truncated cone-shaped matching the circular truncated cone-shaped charging slot.

The embodiment also provides a charging station, which adopts the charging device. All beneficial effects of the charging device are achieved. And will not be described in detail herein.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (10)

1. The charging device is characterized by comprising a sliding rail arranged on a charging frame and a socket which is in sliding connection with the sliding rail, wherein the socket is provided with a charging end, and the socket can slide along the sliding rail under the action of external force so as to enable the charging end to be in butt joint with a plug for supplying power;

A reset component is connected between the socket and the charging frame and is used for providing an acting force returning to an initial position for the socket;

the reset assembly comprises a first spring, one end of the first spring is connected with the socket, and the other end of the first spring is connected with the charging frame;

The reset assembly further comprises a first sliding block which is connected with the sliding rail in a sliding way, and the sliding rail is divided into a first area for the socket to independently slide and a second area for the socket and the first sliding block to jointly slide; the first spring is connected with the charging frame through the first sliding block;

The reset assembly comprises a second spring, one end of the second spring is fixedly connected with the first sliding block, and the other end of the second spring is fixedly connected with the charging frame.

2. The charging device of claim 1, wherein the charging end is dovetail-shaped, and an open side of the dovetail-shaped is provided with a socket for a docking plug.

3. The charging device of claim 1, wherein the first slider is connected with a limiting member for limiting the first slider within the second region, the limiting member having a free end that extends beyond an edge of the first slider and is in limiting abutment with the charging frame when the first slider is at the juncture of the first region and the second region.

4. A charging device according to claim 3, further comprising a connection plate connected to the first slider, the free end of the stopper protruding from the connection plate.

5. The charging device of claim 1, wherein the first spring and the second spring are each located between the first slider and the receptacle.

6. The charging device of claim 1, further comprising a second slider slidably disposed on the slide rail, the receptacle being fixedly coupled to the second slider, the receptacle being slidably disposed on the slide rail via the second slider.

7. The charging device of claim 6, wherein the socket is rotatably coupled to the second slider via a shaft, the socket being rotatable about an axis of the shaft.

8. The charging device of claim 7, wherein the charging end is provided with a truncated cone-shaped charging slot.

9. The charging device according to claim 1, wherein both ends of the slide rail are provided with stoppers, respectively.

10. Charging station, characterized by comprising a charging device according to any of claims 1-9.