Charging device

Abstract

The utility model provides a charging device, which comprises a magnetic wireless charger, and the magnetic wireless charger comprises an installation shell, a first wireless charging part, a first magnetic part, a first connector and a first circuit board. Wherein the first wireless charging part is mounted in the mounting shell. The first magnetic piece is installed on the installation shell and used for fixing the installation shell. The first connector is mounted on the mounting shell. The first circuit board is installed in the installation shell. The first circuit board is electrically connected with the first wireless charging part and the first connector. The magnetic attraction wireless charger can be used independently, can be used together with any magnetic attraction equipment, and can be matched with any equipment for use by virtue of the magnetic induction component, so that the magnetic attraction wireless charger can meet the requirements of various different application scenes, and the practicability and experience feeling of the charging device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless charging, in particular to a charging device. Background Art

[0002] The magnetic watch charger in the prior art is partially installed on a specific product and can be rotated but cannot be removed from the specific product. Therefore, the use scenario of the magnetic watch in the prior art is fixed and cannot meet the needs of more application scenarios. Utility Model Content

[0003] Based on this, it is necessary to provide a charging device to address the problem that the use scenarios of magnetic watches in the prior art are fixed and cannot meet the needs of more application scenarios.

[0004] The technical solution is as follows:

[0005] In one aspect, a charging device is provided, the charging device comprising a magnetic wireless charger, the magnetic wireless charger comprising:

[0006] Install the shell;

[0007] A first wireless charging component, which is installed in the installation shell;

[0008] A first magnetic member, which is mounted on the mounting shell and is used to fix the mounting shell;

[0009] A first connector mounted on the mounting shell; and

[0010] A first circuit board is installed in the installation shell, and the first circuit board is electrically connected to the first wireless charging component and the first connector.

[0011] The charging device in the above embodiment, when the magnetic wireless charger is used in conjunction with a power supply device, the magnetic attraction between the first magnetic part and the power supply device is utilized so that the mounting shell can be detachably connected to the power supply device, and the first connector is electrically connected to the power supply device accordingly, so that the power supply device can supply power to the first wireless charger through the first connector and the first circuit board, and the first wireless charger charges the device to be charged. When the magnetic wireless charger is used in conjunction with a non-power supply device, the magnetic attraction between the first magnetic part and the non-power supply device is utilized so that the mounting shell can be detachably connected to the non-power supply device, and the first circuit board is electrically connected to the external power supply, so that the external power supply can supply power to the first wireless charger through the first circuit board, and the first wireless charger charges the device to be charged. The magnetic wireless charger in the present application can be used alone, can be used together with any device that can be magnetically attracted, and can be used with any device with the help of a magnetic attraction component, to ensure that the magnetic wireless charger can meet the needs of a variety of different application scenarios and improve the practicality and experience of the charging device.

[0012] The technical solution is further described below:

[0013] In one embodiment, the magnetic wireless charger further includes a first power supply component, which is installed in the installation shell and electrically connected to the first circuit board;

[0014] And / or, a charging interface is provided on the first circuit board, and the charging interface is electrically connected to the first circuit board.

[0015] In one of the embodiments, the outer side wall of the mounting shell is provided with a first accommodating groove, and the first magnetic member is installed in the first accommodating groove.

[0016] In one embodiment, the inner wall of the mounting shell is provided with a second accommodating groove, the bottom wall of the second accommodating groove is provided with a first through hole extending to the outer wall of the mounting shell, the first connector includes a base and a pin needle penetrating the base, the base is installed in the second accommodating groove, one end of the pin needle is electrically connected to the first circuit board, and the other end passes through the first through hole to extend out of the outer wall of the mounting shell.

[0017] In one embodiment, a protrusion is provided on the outer wall of the mounting shell, and the side of the protrusion away from the mounting shell is set as a mounting surface, the first receiving groove is annular and is set on the mounting surface, the first through hole is located on the inner side of the first receiving groove and extends to the mounting surface, and the end of the pin away from the first circuit board passes through the first through hole to extend out of the mounting surface.

[0018] In one embodiment, the first magnetic member is arranged in a ring shape and is sleeved in the first receiving groove, and a side of the first magnetic member away from the bottom wall of the first receiving groove is located on the same plane as the installation surface.

[0019] In one embodiment, the charging device further includes an accessory module, which includes a mounting body and a second magnetic component, wherein the second magnetic component is mounted on the mounting body and is used to magnetically cooperate with the first magnetic component to detachably connect the mounting body to the mounting shell.

[0020] In one embodiment, the outer wall of the mounting body is provided with a third receiving groove, and the second magnetic component is installed in the third receiving groove. When the first magnetic component and the second magnetic component are magnetically engaged, the protrusion extends into the third receiving groove and rotates to engage with the inner wall of the third receiving groove.

[0021] In one embodiment, the mounting body is provided with a mounting cavity, and the bottom wall of the third accommodating groove is provided with a second through hole connected to the mounting cavity. The accessory module also includes a second power supply, a second circuit board and a second connector. The second power supply and the second circuit board are both installed in the mounting cavity, and the second circuit board is electrically connected to the second power supply. One end of the second connector is installed in the mounting cavity and electrically connected to the second circuit board, and the other end passes through the second through hole and extends into the third accommodating groove. The second magnetic member is sleeved on the outer wall of the second connector. When the first magnetic member and the second magnetic member are magnetically matched, the end of the second connector extending into the third accommodating groove is electrically connected to the first connector.

[0022] In one embodiment, a side of the second magnetic member away from the bottom wall of the third receiving groove and an end surface of an end of the second connector extending into the third receiving groove are located on the same plane;

[0023] And / or, the distance between a side of the second magnetic member away from the bottom wall of the third receiving groove and a side of the mounting body provided with the third receiving groove is set to a first length, the height of the protrusion along the axis direction of the first receiving groove is set to a second length, and the first length is the same as the second length;

[0024] And / or, the accessory module further includes a bracket, and the bracket is rotatably connected to the outer wall of the mounting body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] FIG. 1 is a schematic structural diagram of a charging device according to an embodiment.

[0028] FIG. 2 is an exploded view of the charging device of FIG. 1 .

[0029] FIG. 3 is a cross-sectional view of the charging device of FIG. 1 along the AA direction.

[0030] FIG. 4 is a partial enlarged view of portion B in FIG. 3 .

[0031] FIG. 5 is a schematic structural diagram of a charging device according to another embodiment.

[0032] FIG. 6 is an exploded view of the accessory module in FIG. 5 .

[0033] FIG. 7 is a schematic diagram of the structure of the charging device of FIG. 5 in a first use state.

[0034] FIG. 8 is a schematic structural diagram of the charging device of FIG. 5 in a second usage state.

[0035] FIG. 9 is a cross-sectional view of the accessory module of FIG. 5 along the CC direction.

[0036] FIG. 10 is a partial enlarged view of portion D in FIG. 9 .

[0037] Description of reference numerals:

[0038] 10. Charging device; 100. Magnetic wireless charger; 110. Mounting shell; 111. First receiving slot; 112. Second receiving slot; 113. First through hole; 114. First bottom cover; 115. First top cover; 120. First wireless charging component; 130. First magnetic component; 140. First connector; 141. Base; 142. Pin; 150. Charging interface; 160. First circuit board; 170. Protrusion; 171. Mounting surface; 180. Third magnetic component; 200. Accessory module; 210. Mounting body; 211. Third receiving slot; 212. Mounting cavity; 213. Second through hole; 214. Second bottom cover; 215. Second top cover; 220. Second magnetic component; 230. Second power supply component; 240. Second circuit board; 250. Second connector; 260. Fourth magnetic component; 270. Second wireless charging component; 280. Bracket. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0040] As shown in FIG. 1 and FIG. 2 , in one embodiment, a charging device 10 is provided, and the charging device 10 includes a magnetic wireless charger 100, and the magnetic wireless charger 100 includes a mounting shell 110, a first wireless charging component 120, a first magnetic component 130, a first connector 140, and a first circuit board 160. Among them, the first wireless charging component 120 is installed in the mounting shell 110. The first magnetic component 130 is installed on the mounting shell 110 and is used to fix the mounting shell 110. The first connector 140 is installed on the mounting shell 110. The first circuit board 160 is installed in the mounting shell 110, and the first circuit board 160 is electrically connected to the first wireless charging component 120 and the first connector 140.

[0041] In the charging device 10 of the above embodiment, when the magnetic wireless charger 100 is used in conjunction with a power supply device (such as a mobile power supply, a power strip, an adapter, etc.), the magnetic attraction between the first magnetic member 130 and the power supply device is used to enable the mounting shell 110 to be detachably connected to the power supply device, and the first connector 140 is electrically connected to the power supply device accordingly, so that the power supply device can supply power to the first wireless charger 120 through the first connector 140 and the first circuit board 160, and the first wireless charger 120 charges the device to be charged. When the magnetic wireless charger 100 is used in conjunction with a non-power supply device (such as a mounting bracket, etc.), the magnetic attraction between the first magnetic member 130 and the non-power supply device is used to enable the mounting shell 110 to be detachably connected to the non-power supply device, and the first circuit board 160 is electrically connected to the external power supply, so that the external power supply can supply power to the first wireless charger 120 through the first circuit board 160, and the first wireless charger 120 charges the device to be charged. The magnetic wireless charger 100 in the present application can be used alone, can be used together with any magnetically attractive device, and can also be used in combination with any device with the help of magnetic attraction components, ensuring that the magnetic wireless charger 100 can meet the needs of a variety of different application scenarios and improve the practicality and experience of the charging device 10.

[0042] The first wireless charging component 120 may be any structure capable of wireless charging in the prior art. The first magnetic component 130 may be any magnetic structure in the prior art. Specifically in this embodiment, the first magnetic component 130 may be configured as a magnet. The first wireless charging component 120 may be configured as a wireless charging coil.

[0043] The first circuit board 160 is electrically connected to the first wireless charging component 120 and the first connector 140 through wires, FPC flexible cables or other electrical connection structures.

[0044] The device to be charged may be a watch with a wireless charging function, a mobile phone with a wireless charging function, or other electronic devices with a wireless charging function.

[0045] Optionally, the magnetic wireless charger 100 further includes a first power supply, which is installed in the mounting shell 110 and electrically connected to the first circuit board 160. In this way, the magnetic wireless charger 100 has its own power supply, so that the device to be charged can be directly charged through the first circuit board 160 and the first wireless charger 120, thereby improving the practicality of the charging device 10.

[0046] The first power supply unit may be configured as a battery, a battery cell or other power supply structures.

[0047] As shown in Figures 1 and 2, optionally, a charging interface 150 is provided on the first circuit board 160, and the charging interface 150 is electrically connected to the first circuit board 160. In this way, an external power source can be electrically connected to the first circuit board 160 through the charging interface 150, thereby improving the convenience of the charging device 10.

[0048] Specifically in this embodiment, the charging interface 150 is directly welded on the first circuit board 160. The charging interface 150 is mounted on the mounting shell 110.

[0049] As shown in FIG. 1 and FIG. 2 , in one embodiment, the outer wall of the mounting shell 110 is provided with a first receiving groove 111, and the first magnetic member 130 is installed in the first receiving groove 111. In this way, the first magnetic member 130 is located on the outer side of the mounting shell 110, so that the distance between the first magnetic member 130 and the mounted device is reduced, and the magnetic attraction between the first magnetic member 130 and the mounted device is increased, ensuring that the mounting shell 110 can be stably and reliably fixed on the mounted device through the first magnetic member 130, thereby improving the reliability of the charging device 10.

[0050] As shown in FIG. 1 and FIG. 2 , further, the inner side wall of the mounting shell 110 is provided with a second receiving groove 112, the bottom wall of the second receiving groove 112 is provided with a first through hole 113 extending to the outer side wall of the mounting shell 110, the first connector 140 includes a base 141 and a pin 142 penetrating the base 141, the base 141 is mounted on the second receiving groove 112, one end of the pin 142 is electrically connected to the first circuit board 160, and the other end passes through the first through hole 113 to extend out of the outer side wall of the mounting shell 110. In this way, the pin 142 extends out of the outer side wall of the mounting shell 110 to facilitate electrical connection with the power supply device.

[0051] Specifically in this embodiment, the pin needle 142 is soldered on the first circuit board 160 .

[0052] As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, optionally, the outer wall of the mounting shell 110 is provided with a protrusion 170, and the side of the protrusion 170 away from the mounting shell 110 is set as a mounting surface 171, the first receiving groove 111 is annular and is set on the mounting surface 171, the first through hole 113 is located on the inner side of the first receiving groove 111 and extends to the mounting surface 171, and the end of the pin 142 away from the first circuit board 160 passes through the first through hole 113 to extend out of the mounting surface 171. In this way, the first connector 140 is located on the inner side of the first magnetic member 130, ensuring that the first magnetic member 130 is magnetically matched with the power supply device, and the first connector 140 is synchronously electrically connected with the power supply device, thereby improving the practicality and reliability of the charging device 10.

[0053] As shown in FIG. 1 , FIG. 2 and FIG. 4 , specifically in this embodiment, the first magnetic member 130 is provided in an annular shape and is sleeved in the first receiving groove 111. The side of the first magnetic member 130 away from the bottom wall of the first receiving groove 111 is located on the same plane as the mounting surface 171. In this way, the first magnetic member 130 can fit with the mounted device, ensuring that the first magnetic member 130 can stably and reliably detachably connect the mounting shell 110 to the mounted device, thereby improving the reliability of the charging device 10.

[0054] As shown in FIG. 1 and FIG. 2 , in one embodiment, the magnetic wireless charger 100 further includes a third magnetic member 180, which is installed in the mounting shell 110 and is used to fix the device to be charged on the mounting shell 110, so as to ensure that the first wireless charger 120 can stably and reliably charge the device to be charged. Specifically in this embodiment, the third magnetic member 180 can be set as a magnet. The first wireless charger 120 is sleeved on the outer wall of the third magnetic member 180.

[0055] As shown in FIG1 and FIG2 , optionally, the mounting shell 110 includes a first bottom cover 114 and a first top cover 115 , and the first bottom cover 114 and the first top cover 115 can be assembled together by snap connection, adhesive connection, ultrasonic welding, etc. The first receiving groove 111 and the second receiving groove 112 are both disposed on the first bottom cover 114 .

[0056] As shown in Fig. 2, Fig. 5 and Fig. 6, in one embodiment, the charging device 10 further includes an accessory module 200, and the accessory module 200 includes a mounting body 210 and a second magnetic member 220, and the second magnetic member 220 is mounted on the mounting body 210 and is used to magnetically cooperate with the first magnetic member 130 to detachably connect the mounting body 210 to the mounting shell 110. In this way, the magnetic wireless charger 100 can be fixed on the mounting body 210 through the magnetic cooperation of the first magnetic member 130 and the second magnetic member 220, and used in conjunction with the accessory module 200; at the same time, the magnetic wireless charger 100 can also be removed from the mounting body 210 and used separately, ensuring that the charging device 10 can be applied to a variety of different application scenarios, thereby improving the practicality of the charging device 10.

[0057] The accessory module 200 includes a power supply device and a non-power supply device. When the first magnetic component 130 is set as a magnet, the second magnetic component 220 can be set as a magnetic sheet, a magnetically attracted metal, a magnet, or other objects that can be magnetically attracted. When the second magnetic component 220 is set as a magnet, the first magnetic component 130 can be set as a magnetic sheet, a magnetically attracted metal, a magnet, or other objects that can be magnetically attracted.

[0058] As shown in Fig. 4, Fig. 6, Fig. 7 and Fig. 8, optionally, the outer wall of the mounting body 210 is provided with a third receiving groove 211, and the second magnetic member 220 is installed in the third receiving groove 211. When the first magnetic member 130 and the second magnetic member 220 are magnetically matched, the protrusion 170 extends into the third receiving groove 211 and rotates with the inner wall of the third receiving groove 211. In this way, the magnetic wireless charger 100 can be fixed on the accessory module 200 by magnetic attraction and can rotate 360 ​​degrees relative to the accessory module 200, so that the user can rotate the magnetic wireless charger 100 to a certain angle as needed to charge the device to be charged, ensuring that the charging device 10 can be applied to a variety of different application scenarios, and improving the practicality and convenience of the charging device 10.

[0059] As shown in Figures 2, 5, 9 and 10, in one embodiment, the mounting body 210 is provided with a mounting cavity 212, and the bottom wall of the third receiving groove 211 is provided with a second through hole 213 connected to the mounting cavity 212. The accessory module 200 also includes a second power supply component 230, a second circuit board 240 and a second connector 250. The second power supply component 230 and the second circuit board 240 are both installed in the mounting cavity 212. The second circuit board 240 is electrically connected to the second power supply component 230. One end of the second connector 250 is installed in the mounting cavity 212 and is electrically connected to the second circuit board 240, and the other end passes through the second through hole 213 and extends into the third receiving groove 211. The second magnetic component 220 is sleeved on the outer wall of the second connector 250. When the first magnetic component 130 and the second magnetic component 220 are magnetically matched, the end of the second connector 250 extending into the third receiving groove 211 is electrically connected to the first connector 140. In this way, the accessory module 200 is a mobile power source, so as to be used in conjunction with the magnetic wireless charger 100 .

[0060] Among them, the second power supply component 230 can be set as a battery, a battery cell or other power supply structure. The second circuit board 240 can be electrically connected to the second power supply component 230 through wires, FPC flexible cables, or other methods. One end of the second connector 250 installed in the installation cavity 212 can be electrically connected to the second circuit board 240 through wires, FPC flexible cables, or other methods. One of the first connector 140 and the second connector 250 is set as a pogo pin female socket, and the other is set as a pogo pin male end. Specifically in this embodiment, the first connector 140 is set as a pogo pin male end. The second connector 250 is set as a pogo pin female socket.

[0061] As shown in Figures 6 and 9, optionally, the mounting body 210 includes a second bottom cover 214 and a second top cover 215, and the second bottom cover 214 and the second top cover 215 can be assembled together by snap connection, adhesive connection, ultrasonic welding, etc. to form a mounting cavity 212. The accessory module 200 also includes a second wireless charging component 270 and a fourth magnetic component 260, and the second wireless charging component 270 and the fourth magnetic component 260 are both installed in the mounting cavity 212. The second wireless charging component 270 can be set as a wireless charging coil and used to charge the device to be charged. The fourth magnetic component 260 can be set as a magnet and used to fix the device to be charged on the mounting body 210.

[0062] As shown in FIG6 , the accessory module 200 may further include a bracket 280, which may be rotatably connected to the outer wall of the mounting body 210. In this way, the bracket 280 may serve as a supporting component to support the mounting body 210, and the mounting body 210 and the bracket 280 may be rotatably connected, so that the position of the magnetic wireless charger 100 on the mounting body 210 relative to the bracket 280 is adjustable, thereby ensuring that the charging device 10 can meet the requirements of various application scenarios and improving the practicality of the charging device 10.

[0063] As shown in FIG6 and FIG9 , specifically in this embodiment, the bracket 280 can be rotatably connected and stored on the second top cover 215. The third receiving slot 211 is disposed on the second top cover 215. The second wireless charging component 270 and the fourth magnetic component 260 are installed on the second bottom cover 214.

[0064] As shown in FIG. 6 and FIG. 10 , in one embodiment, a side of the second magnetic member 220 away from the bottom wall of the third receiving groove 211 and an end surface of an end of the second connector 250 extending into the third receiving groove 211 are located on the same plane.

[0065] Optionally, the distance between the side of the second magnetic member 220 away from the bottom wall of the third receiving groove 211 and the side of the mounting body 210 provided with the third receiving groove 211 is set to a first length, and the height of the protrusion 170 along the axis direction of the first receiving groove 111 is set to a second length, and the first length is the same as the second length. In this way, the first magnetic member 130 and the second magnetic member 220 can fit together, ensuring that the magnetic wireless charger 100 can be better magnetically attracted to the accessory module 200, thereby improving the reliability of the charging device 10.

[0066] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply 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 on the present application.

[0067] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0068] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0069] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0070] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0071] It should also be understood that when explaining the connection relationship or positional relationship of elements, although not explicitly described, the connection relationship and positional relationship are interpreted as including an error range, which should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" may mean within one or more standard deviations, which are not limited here.

[0072] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A charging device, characterized in that: The charging device includes a magnetic wireless charger, and the magnetic wireless charger includes: Install the shell; A first wireless charging component, which is installed in the installation shell; A first magnetic member, which is mounted on the mounting shell and is used to fix the mounting shell; A first connector mounted on the mounting shell; and A first circuit board is installed in the installation shell, and the first circuit board is electrically connected to the first wireless charging component and the first connector.

2. The charging device according to claim 1, characterized in that: The magnetic wireless charger further includes a first power supply component, which is installed in the installation shell and electrically connected to the first circuit board; And / or, a charging interface is provided on the first circuit board, and the charging interface is electrically connected to the first circuit board.

3. The charging device according to claim 1 or 2, characterized in that: The outer side wall of the installation shell is provided with a first accommodating groove, and the first magnetic member is installed in the first accommodating groove.

4. The charging device according to claim 3, characterized in that: The inner side wall of the mounting shell is provided with a second accommodating groove, the bottom wall of the second accommodating groove is provided with a first through hole extending to the outer side wall of the mounting shell, the first connector includes a base and a pin needle penetrating the base, the base is installed in the second accommodating groove, one end of the pin needle is electrically connected to the first circuit board, and the other end passes through the first through hole to extend out of the outer side wall of the mounting shell.

5. The charging device according to claim 4, characterized in that: A protrusion is provided on the outer wall of the mounting shell, and a side of the protrusion away from the mounting shell is set as a mounting surface. The first accommodating groove is annular and is set on the mounting surface. The first through hole is located on the inner side of the first accommodating groove and extends to the mounting surface. An end of the pin away from the first circuit board passes through the first through hole to extend out of the mounting surface.

6. The charging device according to claim 5, characterized in that: The first magnetic member is arranged in a ring shape and is sleeved in the first receiving groove. The side of the first magnetic member away from the bottom wall of the first receiving groove is located on the same plane as the installation surface.

7. The charging device according to claim 5, characterized in that: The charging device also includes an accessory module, which includes a mounting body and a second magnetic component. The second magnetic component is mounted on the mounting body and is used to magnetically cooperate with the first magnetic component to detachably connect the mounting body to the mounting shell.

8. The charging device according to claim 7, characterized in that: The outer wall of the mounting body is provided with a third receiving groove, and the second magnetic member is installed in the third receiving groove. When the first magnetic member and the second magnetic member are magnetically engaged, the protrusion extends into the third receiving groove and rotates to engage with the inner wall of the third receiving groove.

9. The charging device according to claim 8, characterized in that: The mounting body is provided with a mounting cavity, and the bottom wall of the third accommodating groove is provided with a second through hole connected to the mounting cavity. The accessory module also includes a second power supply, a second circuit board and a second connector. The second power supply and the second circuit board are both installed in the mounting cavity, and the second circuit board is electrically connected to the second power supply. One end of the second connector is installed in the mounting cavity and is electrically connected to the second circuit board, and the other end passes through the second through hole and extends into the third accommodating groove. The second magnetic member is sleeved on the outer side wall of the second connector. When the first magnetic member and the second magnetic member are magnetically matched, the end of the second connector extending into the third accommodating groove is electrically connected to the first connector.

10. The charging device according to claim 9, characterized in that: A side of the second magnetic member away from the bottom wall of the third receiving groove and an end surface of an end of the second connector extending into the third receiving groove are located on the same plane; And / or, the distance between a side of the second magnetic member away from the bottom wall of the third receiving groove and a side of the mounting body provided with the third receiving groove is set to a first length, the height of the protrusion along the axis direction of the first receiving groove is set to a second length, and the first length is the same as the second length; And / or, the accessory module further includes a bracket, and the bracket is rotatably connected to the outer wall of the mounting body.

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