Charging device and charging system

Abstract

The utility model belongs to the technical field of charging equipment, and particularly relates to a charging device and a charging system, the charging device comprises a first charging assembly, a conversion assembly, a positioning identification member and a cabinet provided with an internal space, and the conversion assembly is installed in the internal space; the positioning identification piece is mounted on the case, and a through hole communicated with the internal space is formed in the positioning identification piece; one end of the first charging assembly is installed in the internal space and electrically connected with the conversion assembly, and the other end of the first charging assembly extends out of the through hole. According to the utility model, the positioning identification piece enables the mobile trolley to accurately obtain the position of the first charging assembly, and ensures the accuracy and smoothness of the butt joint of the second charging assembly on the mobile trolley and the first charging assembly.

Description

Technical Field

[0001] The utility model belongs to the technical field of charging devices, and particularly relates to a charging device and a charging system. Background Art

[0002] With the continuous progress of technology, the application of autonomous mobile robots with power batteries that need to be charged is becoming more and more extensive. In the prior art, an autonomous mobile robot can usually move itself to dock with a charging device, so as to perform contact charging on the power battery on the autonomous mobile robot by using the charging device docked with it. The disadvantage of the above solution is that during the process of docking the autonomous mobile robot with the charging device for charging, the problem of inaccurate docking often occurs, which makes the charging process unable to proceed smoothly. Subsequently, multiple dockings are required, and even the charging head is damaged during the docking process. Content of the Utility Model

[0003] Aiming at the technical problem of inaccurate docking when an autonomous mobile robot is docked with a charging device in the prior art, the utility model provides a charging device and a charging system.

[0004] To solve the above problems, an embodiment of the utility model provides a charging device, which includes a first charging component, a conversion component, a positioning and identifying member, and a chassis with an internal space, and the conversion component is installed in the internal space;

[0005] The positioning and identifying member is installed on the chassis, and a through hole communicating with the internal space is provided on the positioning and identifying member; one end of the first charging component is installed in the internal space and is electrically connected to the conversion component, and the other end of the first charging component extends out from the through hole.

[0006] Optionally, the positioning and identifying member includes a frame body and an identification groove recessed on the frame body, and the through hole is provided on the bottom surface of the identification groove.

[0007] Optionally, in the direction from the frame body towards the through hole, the cross-sectional area of the identification groove gradually decreases.

[0008] Optionally, the positioning and identifying member further includes a plurality of identification plates. The first ends of all the identification plates are connected to the frame body, and the identification groove is surrounded among all the identification plates; the second ends of all the identification plates enclose the through hole; all the identification plates are inclined from the frame body towards the through hole.

[0009] Optionally, the positioning and identifying member includes an annular identification plate, the annular identification plate surrounds the identification groove, the first end of the annular identification plate is connected to the frame body, and the second end of the annular identification plate encloses the through hole.

[0010] Optionally, an installation groove is provided on the outer wall of the chassis, and an installation hole communicating with the internal space is provided on the bottom wall of the installation groove;

[0011] The positioning and identification member is installed in the installation groove, and the through hole communicates with the internal space through the installation hole.

[0012] Optionally, the first charging component includes a charging terminal and a charging head detachably installed on the charging terminal. The charging terminal is installed in the internal space and electrically connected to the conversion component, and one end of the charging head away from the charging terminal extends out of the through hole.

[0013] Optionally, the conversion component includes a power adapter, a relay, and a power conversion head that are electrically connected in sequence. One end of the power conversion head away from the relay is electrically connected to the first charging component.

[0014] Optionally, the charging device further includes a partition installed in the internal space. The partition is used to divide the internal space into a first space and a second space. The power adapter, the relay, and the power conversion head are installed in the first space, and the first charging component is installed in the second space.

[0015] Optionally, the chassis is further provided with a heat dissipation hole group communicating with the internal space; the charging device further includes a fan; the fan is installed on the conversion component to blow out the heat dissipated by the conversion component from the heat dissipation hole group.

[0016] Optionally, the charging device further includes a dust-proof net; the dust-proof net is installed at a position in the internal space opposite to the heat dissipation hole group to filter the gas entering the internal space from the heat dissipation hole group.

[0017] Optionally, the charging device further includes a height adjustment base installed at the bottom of the chassis and used to adjust the installation height of the chassis.

[0018] Optionally, the chassis includes a box body and a box cover installed on the box body. The internal space is provided between the box cover and the box body, and the through hole is provided on the box body.

[0019] Optionally, the charging device further includes a display lamp installed in the internal space and electrically connected to the conversion component. A display window is provided on the box cover, and the display lamp is used to display the charging status of the first charging component through the display window.

[0020] Another embodiment of the present utility model further provides a charging system, including a mobile trolley and the above-mentioned charging device; the mobile trolley includes an identification sensor for identifying the positioning identification member to position the first charging component, and a second charging component for electrically connecting to the first charging component for charging.

[0021] In the present utility model, the positioning identification member is installed on the chassis, and a through hole communicating with the internal space of the chassis is provided on the positioning identification member; one end of the first charging component is installed in the internal space and electrically connected to the conversion component located in the internal space, and the other end of the first charging component extends out from the through hole; when the mobile trolley needs to dock with the charging device for charging, the identification sensor on the mobile trolley can identify the positioning identification member, so as to obtain the first charging component extending out from the through hole of the positioning identification member, and further enable the second charging component on the mobile trolley to dock with the first charging component, and the charging device can charge the power battery on the mobile trolley through the mutually docked second charging component and the first charging component. In the present utility model, the design of the positioning identification member enables the mobile trolley to accurately obtain the position of the first charging component, ensuring the accuracy and smoothness of the docking between the second charging component on the mobile trolley and the first charging component. Description of the Drawings

[0022] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0023] Figure 1 It is a schematic structural diagram of the charging device provided by an embodiment of the present utility model;

[0024] Figure 2 It is a schematic structural diagram of the positioning identification member of the charging device provided by an embodiment of the present utility model;

[0025] Figure 3 It is a cross-sectional view of the charging device provided by an embodiment of the present utility model;

[0026] Figure 4 It is an exploded structural diagram of the charging device provided by an embodiment of the present utility model;

[0027] Figure 5 It is a partial structural diagram of the charging device provided by an embodiment of the present utility model;

[0028] Figure 6 It is a cross-sectional view of the height adjustment seat of the charging device provided by an embodiment of the present utility model;

[0029] Figure 7 It is a schematic structural diagram of the charging system provided by an embodiment of the present utility model.

[0030] The reference numerals in the description are as follows:

[0031] 1. Charging device; 11. First charging component; 111. Charging terminal; 112. Charging head; 12. Conversion component; 121. Power adapter; 122. Relay; 123. Power conversion head; 13. Positioning and identifying member; 131. Through hole; 132. Frame; 133. Identification board; 134. Identification groove; 14. Chassis; 141. Internal space; 1411. First space; 1412. Second space; 142. Installation groove; 143. Installation hole; 144. Heat dissipation hole group; 145. Box body; 146. Box cover; 1461. Display window; 15. Partition; 16. Fan; 17. Dust-proof net; 18. Height adjustment seat; 181. Foot seat; 1811. Support part; 1812. Stud; 182. First nut; 183. Second nut; 19. Display lamp; 2. Mobile trolley; 21. Second charging component. Detailed implementation manners

[0032] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0033] It should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "middle", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model.

[0034] As Figure 1 and Figure 2 shown, a charging device 1 provided in the first embodiment of the present utility model includes a first charging component 11, a conversion component 12, a positioning and identifying member 13, and a chassis 14 having an internal space 141. The conversion component 12 is installed in the internal space 141; the positioning and identifying member 13 is installed on the chassis 14, and a through hole 131 communicating with the internal space 141 is provided on the positioning and identifying member 13; one end of the first charging component 11 is installed in the internal space 141 and is electrically connected to the conversion component 12, and the other end of the first charging component 11 extends out from the through hole 131.

[0035] Understandably, the conversion component 12 includes but is not limited to a power adapter 121, a relay 122, a power adapter 123, a control board, etc.; the positioning and identifying member 13 can be installed on the outer wall of the chassis 14, a part of the first charging component 11 is located in the internal space 141, and another part of the first charging component 11 is located outside the internal space 141.

[0036] In the present utility model, the positioning and identifying member 13 is installed on the chassis 14, and a through hole 131 communicating with the internal space 141 of the chassis 14 is provided on the positioning and identifying member 13; one end of the first charging component 11 is installed in the internal space 141 and is electrically connected to the conversion component 12 located in the internal space 141, and the other end of the first charging component 11 extends out from the through hole 131; when the mobile trolley 2 needs to be docked with the charging device 1 for charging, the identification sensor on the mobile trolley 2 can identify the positioning and identifying member 13, so as to obtain the first charging component 11 extending out from the through hole 131 of the positioning and identifying member 13, and further enable the second charging component 21 on the mobile trolley 2 to be docked with the first charging component 11. The charging device 1 can charge the power battery on the mobile trolley 2 through the mutually docked second charging component 21 and the first charging component 11. In the present utility model, the design of the positioning and identifying member 13 enables the mobile trolley 2 to accurately obtain the position of the first charging component 11, ensuring the accuracy and smoothness of the docking of the second charging component 21 on the mobile trolley 2 with the first charging component 11.

[0037] In an embodiment, as Figure 2 shown, the positioning and identifying member 13 includes a frame body 132 and an identification groove 134 recessed on the frame body 132, and the through hole 131 is provided on the bottom surface of the identification groove 134. Preferably, in the direction from the frame body 132 towards the through hole 131, the cross-sectional area of the identification groove 134 gradually decreases. Understandably, the through hole 131 is provided at the central part of the frame body 132.

[0038] Specifically, the identification sensor (such as an identification camera) on the mobile trolley 2 can obtain the specific position of the first charging component 11 through the identification groove 134 of the positioning and identifying member 13, so that the second charging component 21 on the mobile trolley 2 is accurately docked with the first charging component 11. Further, during the docking process of the second charging component 21 on the mobile trolley 2 with the first charging component 11, the identification groove 134 can also play a role in guiding the second charging component 21, ensuring the smoothness of the docking of the second charging component 21 on the mobile trolley 2 with the first charging component 11.

[0039] In an embodiment, asFigure 2 As shown, the positioning identification member 13 further includes a plurality of identification plates 133, the first ends of all the identification plates 133 are connected to the frame 132, the identification groove 134 is surrounded by all the identification plates 133; the second ends of all the identification plates 133 surround the through hole 131; and all the identification plates 133 are inclined from the frame 132 toward the through hole 131. Figure 2 In the specific embodiment shown, the positioning identification member 13 includes four identification plates 133, which are respectively a first identification plate, a second identification plate, a third identification plate and a fourth identification plate connected in sequence, an end of the first identification plate away from the second identification plate is connected to an end of the fourth identification plate away from the third identification plate, and the identification groove 134 is surrounded by the first identification plate, the second identification plate, the third identification plate and the fourth identification plate.

[0040] It can be understood that the positioning identification member 13 presents a "U"-shaped structure, and the first charging component 11 is located in the center of the "U"-shaped structure. The identification sensor on the mobile cart 2 can distinguish the positioning identification member 13 from the surrounding environment (including the chassis 14); thus, the identification sensor on the mobile cart 2 can accurately obtain the exact position of the first charging component 11 through the identification sensor, further improving the accuracy of the docking of the second charging component 21 on the mobile cart 2 with the first charging component 11. Furthermore, the inclined design of the identification plate 133 enables the second charging component 21 on the mobile cart 2 to abut against the identification plate 133 and slide along the identification plate 133 into the second through hole 131 during the docking process of the second charging component 21 on the mobile cart 2 and the first charging component 11, thereby ensuring the smoothness of the docking of the second charging component 21 on the mobile cart 2 with the first charging component 11.

[0041] In one embodiment, the positioning identification member 13 includes an annular identification plate, the annular identification plate is surrounded by the identification groove 134, the first end of the annular identification plate is connected to the frame 132, and the second end of the annular identification plate is surrounded by the through hole 131; it can be understood that the annular identification plate can be an integrally formed part, and when the identification sensor on the mobile cart 2 identifies the annular identification plate, the image it obtains can be two coaxially distributed circular ring images, or a "U"-shaped image, etc., so that the special shape of the annular identification plate can be distinguished from the external environment, so that the identification sensor on the mobile cart 2 can accurately obtain the exact position of the first charging component 11 through the identification sensor.

[0042] In one embodiment, if Figure 2 and Figure 4As shown, an installation groove 142 is provided on the outer wall of the chassis 14, and an installation hole 143 communicating with the internal space 141 is provided on the bottom wall of the installation groove 142; the positioning and identifying member 13 is installed in the installation groove 142, and the through hole 131 communicates with the internal space 141 through the installation hole 143.

[0043] Understandably, one end of the identification plate 133 away from the frame 132 can extend into the internal space 141 through the installation hole 143; the periphery of the frame 132 abuts against the inner side wall of the installation groove 142, and the installation groove 142 and the installation hole 143 cannot be seen from the outside, ensuring the aesthetic appearance of the charging device 1.

[0044] In one embodiment, as Figure 4 shown, the first charging component 11 includes a charging terminal 111 and a charging head 112 detachably installed on the charging terminal 111. The charging terminal 111 is installed in the internal space 141 and is electrically connected to the conversion component 12, and one end of the charging head 112 away from the charging terminal 111 extends out through the through hole 131.

[0045] Understandably, the charging head 112 can be detachably installed on the charging terminal 111 by bolts, screws, etc. When the charging head 112 is installed on the charging terminal 111, the charging head 112 is electrically connected to the charging terminal 111. In this embodiment, different charging heads 112 of the charging device 1 can be replaced, so that the charging device 1 can be adapted to different models of mobile trolleys 2, improving the applicability and versatility of the charging device 1; in addition, the charging terminal 111 of the charging device 1 can also be replaced, so that the charging device 1 can be adapted to a larger charging power and current.

[0046] In one embodiment, as Figure 3 and Figure 4 shown, the conversion component 12 includes a power adapter 121, a relay 122, and a power conversion head 123 that are electrically connected in sequence. One end of the power conversion head 123 away from the relay 122 is electrically connected to the first charging component 11. Understandably, the power adapter 121 can be electrically connected to an external power supply through a wire. After the current of the external power supply is regulated by the power adapter 121, it is input into the power conversion head 123 through the relay 122, and then the power battery on the mobile trolley 2 is charged through the second charging component 21 docked with the first charging component 11; in this embodiment, the structure of the conversion component 12 is simple and the manufacturing cost is low.

[0047] In one embodiment, as Figure 3As shown, the charging device 1 further includes a partition 15 installed in the internal space 141. The partition 15 is used to divide the internal space 141 into a first space 1411 and a second space 1412. The power adapter 121, the relay 122, and the power conversion head 123 are installed in the first space 1411, and the first charging component 11 is installed in the second space 1412.

[0048] Understandably, the first space 1411 is located above the second space 1412. The first charging component 11 can be installed on the bottom wall of the chassis 14 or on the bottom surface of the partition 15. The power conversion head 123 can be installed on the side wall of the first space 1411 or on the top surface of the partition 15. Both the power adapter 121 and the relay 122 can be installed on the partition 15. In this embodiment, the partition 15 can separate the first charging component 11 in the second space 1412 and separate the conversion component 12 in the first space 1411, thereby avoiding the interference of the heat generated by the conversion component 12 during operation on the first charging component 11 and extending the service life of the charging device 1. In addition, arranging the power adapter 121, the relay 122, and the power conversion head 123 in the first space 1411 facilitates the wiring between the power adapter 121, the relay 122, and the power conversion head 123 and shortens the length of the wire harness.

[0049] In one embodiment, as Figure 3 and Figure 5 shown, the chassis 14 is further provided with a heat dissipation hole group 144 communicating with the internal space 141. The charging device 1 further includes a fan 16. The fan 16 is installed on the conversion component 12 to blow the heat dissipated by the conversion component 12 out through the heat dissipation hole group 144.

[0050] Understandably, the fan 16 can be installed on the power adapter 121 or on the partition 15, and the fan 16 is located in the first space 1411. The heat dissipation hole groups 144 are provided on both the left and right side surfaces of the chassis 14. Specifically, when the fan 16 operates, it can suck air from the external environment through the heat dissipation hole group 144 and blow it towards the conversion component 12. After the air dissipates heat from the conversion component 12 in the internal space 141, it is output to the external environment through the heat dissipation hole group 144. In this embodiment, the design of the fan 16 improves the heat dissipation efficiency of the conversion component 12 and extends the service life of the charging device 1.

[0051] In one embodiment, as Figure 4and Figure 5 As shown in Figure 5 , the charging device 1 further includes a dust-proof net 17; the dust-proof net 17 is installed at a position in the internal space 141 opposite to the heat dissipation hole group 144 for filtering the gas entering the internal space 141 from the heat dissipation hole group 144.

[0052] Understandably, the dust-proof net 17 is attached to the inner wall of the internal space 141 and is disposed opposite to the heat dissipation hole group 144; the dust-proof net 17 can prevent external dust, impurities, etc. from entering the internal space 141 through the heat dissipation hole group 144, thereby ensuring the cleanliness of the internal space 141.

[0053] In one embodiment, as Figure 1 shown, the charging device 1 further includes a height adjustment seat 18 installed at the bottom of the chassis 14 and used for adjusting the installation height of the chassis 14. Understandably, for different models of mobile trolleys 2, the height of the second charging component 21 from the ground is also different; in this embodiment, the height adjustment seat 18 can adjust the height of the chassis 14 installed on the ground, so as to achieve the purpose of adjusting the height between the first charging component 11 and the ground, and further make the first charging component 11 adapt to the second charging components 21 on different models of mobile trolleys 2, improving the applicability and versatility of the charging device 1.

[0054] In one embodiment, as Figure 6 shown, the height adjustment seat 18 includes a foot seat 181, a first nut 182 and a second nut 183. The foot seat 181 includes a support portion 1811 and a stud 1812 connecting the support portion 1811; a connection hole communicating with the internal space 141 is provided on the bottom of the chassis 14, and one end of the stud 1812 away from the support portion 1811 passes through the connection hole and extends into the internal space 141; the first nut 182 and the second nut 183 are both threadedly sleeved on the stud 1812, and the first nut 182 is located in the internal space 141, and the second nut 183 is located outside the internal space 141.

[0055] Understandably, the stud 1812 is disposed above the support portion 1811. The support portion 1811 is located outside the internal space 141, and one end of the stud 1812 away from the support portion 1811 extends into the internal space 141. Specifically, by adjusting the positions of the first nut 182 and the second nut 183 connected to the stud 1812, the purpose of adjusting the height at which the chassis 14 is installed on the ground is achieved, and the first nut 182 and the second nut 183 are respectively abutted against opposite two surfaces of the bottom plate of the chassis 14. In this embodiment, the height adjustment seat 18 has a simple structure, low manufacturing cost, and convenient adjustment operation.

[0056] In one embodiment, as Figure 3 and Figure 4 shown, the chassis 14 includes a box body 145 and a box cover 146 mounted on the box body 145. An internal space 141 is provided between the box cover 146 and the box body 145, and the through hole 131 is provided on the box body 145. Understandably, the internal space 141 can be provided on the box body 145, the box cover 146 can be closed on the box body 145, and the through hole 131 is provided on the side surface of the box body 145. In this embodiment, the staff can open the box cover 146 from the box body 145, thereby facilitating the maintenance of the conversion component 12 in the internal space 141.

[0057] In one embodiment, as Figure 4 shown, the charging device 1 further includes an indicator light 19 installed in the internal space 141 and electrically connected to the conversion component 12. A display window 1461 is provided on the box cover 146, and the indicator light 19 is used to display the charging status of the first charging component 11 through the display window 1461.

[0058] Understandably, the display window 1461 can be provided on the top surface of the box cover 146, and the display window 1461 can be a transparent plate or an opening, etc. The indicator light 19 can be located directly below the display window 1461 or extend into the display window 1461; the indicator light 19 includes but is not limited to an LED lamp, etc. In the present utility model, the indicator light 19 can display the charging status of the mobile trolley 2 in real time, thereby facilitating the staff to obtain the charging status of the mobile trolley 2 in real time and improving the user experience of the charging device 1.

[0059] In one embodiment, as Figure 1 shown, a handle is further provided on the side wall of the box cover 146. The design of the handle improves the convenience of carrying the charging device 1.

[0060] As Figure 7As shown in the figure, another embodiment of the present utility model further provides a charging system, including a mobile trolley 2 and the above-mentioned charging device 1; the mobile trolley 2 includes an identification sensor (not shown in the figure) for identifying the positioning identification member 13 to position the first charging component 11, and a second charging component 21 for electrically connecting to the first charging component 11 for charging.

[0061] It can be understood that the mobile trolley 2 includes, but is not limited to, an AGV (Automated Guided Vehicle), an AMR (Autonomous Mobile Robot), etc., and the identification sensor includes, but is not limited to, an identification camera, an identification radar, etc.; the mobile trolley 2 can move autonomously on the ground. When the mobile trolley 2 needs to dock with the charging device 1 for charging, since the positioning identification member 13 has a "hui" - shaped structure and the first charging component 11 is located at the center of the "hui" - shaped structure, the identification sensor on the mobile trolley 2 can distinguish the positioning identification member 13 from the surrounding environment (including the chassis 14). Thus, the identification sensor on the mobile trolley 2 can accurately obtain the accurate position of the first charging component 11 through the identification sensor, and further enable the second charging component 21 on the mobile trolley 2 to dock with the first charging component 11. The charging device 1 can charge the power battery on the mobile trolley 2 through the mutually docked second charging component 21 and the first charging component 11.

[0062] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A charging device, characterized in that: It includes a first charging component, a conversion component, a positioning identification member, and a chassis with an internal space, wherein the conversion component is installed in the internal space; The positioning identification member is installed on the chassis, and a through hole connected to the internal space is provided on the positioning identification member; one end of the first charging component is installed in the internal space and electrically connected to the conversion component, and the other end of the first charging component extends from the through hole.

2. The charging device according to claim 1, characterized in that: The positioning identification member comprises a frame body and an identification groove recessed on the frame body, and the through hole is arranged on the bottom surface of the identification groove.

3. The charging device according to claim 2, characterized in that: In a direction from the frame toward the through hole, a cross-sectional area of ​​the identification groove gradually decreases.

4. The charging device according to claim 2 or 3, characterized in that: The positioning identification component also includes multiple identification plates, the first ends of all the identification plates are connected to the frame, the identification grooves are arranged between all the identification plates, the second ends of all the identification plates form the through hole, and all the identification plates are inclined from the frame toward the through hole.

5. The charging device according to claim 2 or 3, characterized in that: The positioning identification member comprises an annular identification plate, the annular identification plate is surrounded by the identification groove, a first end of the annular identification plate is connected to the frame, and a second end of the annular identification plate is surrounded by the through hole.

6. The charging device according to claim 2, characterized in that: An installation groove is provided on the outer wall of the chassis, and an installation hole communicating with the internal space is provided on the bottom wall of the installation groove; The positioning identification member is installed in the installation groove, and the through hole is connected to the internal space through the installation hole.

7. The charging device according to claim 1, characterized in that: The first charging component includes a charging terminal and a charging head detachably mounted on the charging terminal. The charging terminal is installed in the internal space and is electrically connected to the conversion component. An end of the charging head away from the charging terminal extends out from the through hole.

8. The charging device according to claim 1, characterized in that: The conversion component includes a power adapter, a relay and a power conversion head which are electrically connected in sequence, and one end of the power conversion head away from the relay is electrically connected to the first charging component.

9. The charging device according to claim 8, characterized in that: The charging device also includes a partition installed in the internal space, and the partition is used to separate the internal space into a first space and a second space. The power adapter, the relay and the power conversion head are installed in the first space, and the first charging component is installed in the second space.

10. The charging device according to claim 1, characterized in that: The chassis is also provided with a heat dissipation hole group connected to the internal space; the charging device also includes a fan; the fan is installed on the conversion component to blow out the heat emitted by the conversion component from the heat dissipation hole group.

11. The charging device according to claim 10, characterized in that: The charging device further includes a dustproof net; the dustproof net is installed in the internal space at a position opposite to the heat dissipation hole group, so as to filter the gas entering the internal space from the heat dissipation hole group.

12. The charging device according to claim 1, characterized in that: The charging device also includes a height adjustment seat installed at the bottom of the chassis and used to adjust the installation height of the chassis.

13. The charging device according to claim 1, characterized in that: The chassis comprises a box body and a box cover installed on the box body, the inner space is arranged between the box cover and the box body, and the through hole is arranged on the box body.

14. The charging device according to claim 13, characterized in that: The charging device also includes a display light installed in the internal space and electrically connected to the conversion component. A display window is provided on the box cover. The display light is used to display the charging status of the first charging component through the display window.

15. A charging system, characterized in that: It comprises a mobile cart and a charging device as described in any one of claims 1 to 14; the mobile cart comprises an identification sensor for identifying the positioning identification piece to locate the first charging component, and a second charging component for electrically connecting to the first charging component for charging.

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