Charging device

Abstract

The utility model discloses a charging device, which comprises a shell, a wire spool and a charging assembly, and is characterized in that the shell is provided with an accommodating cavity and a wire outlet communicated with the accommodating cavity; the wire spool is located in the containing cavity and comprises a winding column rotationally connected with the shell. The charging assembly comprises a charging wire located in the containing cavity and a power connection plug located outside the shell, the first end of the charging wire penetrates through the wire outlet to be connected with the power connection plug, the second end of the charging wire is connected with the wrapping post, the charging wire comprises an insulating layer, a coil spring and a conductive wire body, and the conductive wire body and the coil spring are located in the insulating layer; and the coil spring is wound along the peripheral side of the winding post. According to the embodiment of the invention, the conductive wire body and the coil spring are combined into a whole, so that the conductive wire body and the coil spring can realize shaping and automatic winding during storage, and the conductive wire body and the coil spring are both arranged in the same insulating layer, so that the occupied space of the charging device can be reduced, and the size of the charging device is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of wire storage, and in particular to a charging device. Background Art

[0002] As portable electronic devices (e.g., mobile phones, iPads, laptops, handheld game consoles, etc.) are used more and more frequently in daily life and work, there are more and more charging cables for charging these portable electronic devices. Therefore, when carrying them out, users will use some storage bags or storage boxes to store them. However, the overall size of these storage products is large, which is not convenient for users to carry with them. Utility Model Content

[0003] The embodiment of the present application provides a charging device, which can reduce the volume of the charging device, thereby facilitating the user to carry it.

[0004] The present application embodiment provides a charging device, including:

[0005] A housing having a receiving cavity and a wire outlet communicating with the receiving cavity;

[0006] A winding drum, located in the accommodating cavity, the winding drum comprises a winding post, and the winding post is rotatably connected to the housing;

[0007] A charging assembly includes a charging cable located in the accommodating cavity and an electrical plug located outside the shell, wherein the first end of the charging cable passes through the cable outlet and is connected to the electrical plug, and the second end of the charging cable is connected to the winding post, and the charging cable includes an insulating layer, a coil spring and a conductive wire body, wherein the conductive wire body and the coil spring are both located in the insulating layer, and the conductive wire body and the coil spring are both wound along the circumference of the winding post.

[0008] The beneficial effects of the embodiments of the present application are as follows: the embodiments of the present application combine the conductive wire and the coil spring into one body, so that the conductive wire can be automatically retracted into a fixed shape with the coil spring when stored, and the conductive wire and the coil spring are both arranged in the same insulating layer, which can reduce the space occupied by the charging device, thereby reducing the volume of the charging device, and the conductive wire is stored along the extension direction of the coil spring, which can reduce the entanglement and knotting of the conductive wire when stored, thereby facilitating the user to use and carry the charging device; at the same time, in the present embodiment, a winding reel is arranged in the shell, and the rotation of the charging cable can drive the winding reel to rotate, and the winding reel can move synchronously with the charging cable, so the winding reel and the charging cable can be relatively stationary, and the side wall of the winding reel can provide more sufficient limiting for the charging cable, so that the winding reel can better provide storage space and protection for the charging cable, further reducing the entanglement of the charging cable when rotating in the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art 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 paying creative work.

[0010] Figure 1 This is a schematic diagram of the structure of a charging device in one embodiment of the present application;

[0011] Figure 2 This is a schematic diagram of the exploded structure of a charging device in one embodiment of the present application;

[0012] Figure 3 This is a schematic diagram of the structure of the winding reel, the charging assembly and the locking assembly in one embodiment of the present application;

[0013] Figure 4 This is a schematic diagram of the structure of the base and the output part of the housing in one embodiment of the present application;

[0014] Figure 5 This is a schematic diagram of the structure of a cable winding reel and a portion of a charging assembly in an embodiment of the present application;

[0015] Figure 6 It is a schematic diagram of the structure of part of the charging device in one embodiment of the present application.

[0016] Reference numerals:

[0017] 1. Charging device;

[0018] 10. Shell; 11. Accommodating cavity; 12. Wire outlet; 13. Base; 131. Positioning column; 14. Cover;

[0019] 20, winding reel; 21, winding column; 22, winding space; 23, guide slot; 231, first slot; 232, second slot; 233, first protrusion; 234, second protrusion; 24, conductive column; 241, column; 242, conductive routing;

[0020] 30, charging assembly; 31, charging line; 311, insulating layer; 312, coil spring; 3121; fixing hole; 313, conductive wire body; 32, power plug; 33, output unit; 331, conductive sheet; 332, conductive contact;

[0021] 40. Locking assembly; 41. First locking member; 411. Hooking portion; 42. Second locking member; 421. Hooking groove; 43. Separator; 431. First notch; 432. First channel; 433. Second channel; 434. First free end; 435. Second free end; 426. Guide slope. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] When carrying the charging cables outside, users will use some storage products to store various charging cables, such as storage bags or storage boxes. However, the overall size of these storage products is large, and users are required to manually roll up the charging cables. The charging cables are prone to entanglement and knotting when stored, which is not only inconvenient for users to carry around, but also makes the storage process of the charging cables cumbersome.

[0024] For the above situation, please see Figure 1-Figure 2 The present application proposes a charging device 1, comprising a housing 10, a cable winding reel 20 and a charging assembly 30.

[0025] The shell 10 has a accommodating cavity 11 and a wire outlet 12 connected to the accommodating cavity 11. The wire winding reel 20 is located in the accommodating cavity 11. The accommodating cavity 11 can provide installation space for the wire winding reel 20 and the charging assembly 30, wherein the wire winding reel 20 includes a winding post 21, which is rotatably connected to the shell 10, that is, the wire winding reel 20 can rotate around the axis of the winding post 21 relative to the shell 10.

[0026] The charging assembly 30 includes a charging cable 31 located in the accommodating cavity 11 and a power plug 32 located outside the shell 10. The first end of the charging cable 31 passes through the outlet 12 and is connected to the power plug 32. That is, the outlet 12 is used for the charging cable 31 to extend out of the accommodating cavity 11 and be electrically connected to the power plug 32 to connect to an external device. The second end of the charging cable 31 is connected to the winding post 21. When the first end of the charging cable 31 is pulled by an external force, the charging cable 31 can drive the winding reel 20 to rotate relative to the shell 10.

[0027] Among them, Figure 3As shown, the charging cable 31 includes an insulating layer 311, a coil spring 312 and a conductive wire body 313. The conductive wire body 313 and the coil spring 312 are both located in the insulating layer 311. It is easy to understand that the insulating layer 311 is wrapped around the outer side of the coil spring 312 and the conductive wire body 313. The insulating layer 311 can provide insulation protection for the conductive wire body 313 and reduce external damage to the conductive wire body 313. The setting of the insulating layer 311 can also reduce electric shock accidents. The conductive wire 313 and the coil spring 312 are both wound along the circumferential side of the winding column 21. The winding reel 20 has a winding space 22. The coil spring 312 is used to wind up the conductive wire 313, so the coil spring 312 and the conductive wire 313 can both be wound in the winding space 22. The conductive wire 313 can be pulled out of the winding space 22 from the position of the wire outlet 12 by an external force. After the external force is lost, the conductive wire 313 can be wound up and restored to the winding space 22 under the elastic force of the coil spring 312.

[0028] Exemplarily, the coil spring 312 is bonded and fixed to the conductive wire body 313, the insulating layer 311 and the first end of the conductive wire body 313 pass through the outlet 12 to be connected to the power plug 32, and the second end of the insulating layer 311 and the coil spring 312 are both connected to the winding post 21; or, the insulating layer 311, the coil spring 312 and the first end of the conductive wire body 313 pass through the outlet 12 to be connected to the power plug 32, and the second end of the coil spring 312 is both connected to the winding post 21.

[0029] It should be noted that the embodiment of the present application arranges both the conductive wire 313 and the coil spring 312 inside the insulating layer 311, so that the conductive wire 313 can be automatically retracted into a fixed shape with the coil spring 312 when stored. The conductive wire 313 and the coil spring 312 are both arranged in the same insulating layer 311, which can reduce the space occupied by the charging device 1, thereby reducing the volume of the charging device 1, and the conductive wire 313 is stored along the extension direction of the coil spring 312, which can reduce the entanglement and knotting of the conductive wire 313 when stored, thereby facilitating the user to use and carry the charging device 1. At the same time, in the present embodiment, a cable winding drum 20 is arranged in the shell 10, and the rotation of the charging cable 31 can drive the cable winding drum 20 to rotate. The cable winding drum 20 can move synchronously with the charging cable 31, so the cable winding drum 20 and the charging cable 31 can be relatively stationary, and the side wall of the cable winding drum 20 can provide more sufficient limiting for the charging cable 31, so that the cable winding drum 20 can better provide storage space and protection for the charging cable 31, and further reduce the entanglement of the charging cable 31 when rotating in the shell 10.

[0030] like Figure 2As shown, the housing 10 includes a base 13 and a cover 14. The base 13 and the cover 14 enclose a receiving cavity 11. The cover 14 and the base 13 are detachably connected to facilitate adjustment or maintenance of the cable winding reel 20 and the charging assembly 30 in the receiving cavity 11. A positioning column 131 is provided on the base 13. The cable winding reel 21 is sleeved on the positioning column 131 and is rotatably connected to the positioning column 131. The positioning column 131 provides a setting basis for the rotation of the cable winding reel 20. The receiving cavity 11 can be in the shape of a column, and the axis of the positioning column 131 coincides with the axis of the housing 10.

[0031] like Figure 3 As shown, in some embodiments of the present application, the insulating layer 311 and the conductive wire body 313 are both bonded to the coil spring 312 , and a plurality of fixing holes 3121 are opened on the coil spring 312 , and the plurality of fixing holes 3121 are arranged at intervals.

[0032] It can be understood that the conductive wire body 313 is electrically connected to the power plug 32, and the coil spring 312 can be connected to the power plug 32 or not. When the charging device 1 is in use, it is necessary to frequently pull the charging cable 31. During the pulling process of the charging cable 31, the insulating layer 311, the conductive wire body 313 and the coil spring 312 will be subjected to force. The coil spring 312 and the conductive wire body 313 are bonded and fixed inside the insulating layer 311 by glue coating. The glue can also be bonded to the insulating layer 311 and the conductive wire body 313 through the fixing hole 3121 on the coil spring 312, thereby increasing the bonding area between the coil spring 312 and the insulating layer 311 and the conductive wire body 313, thereby making the connection between the coil spring 312 and the insulating layer 311 and the conductive wire body 313 more stable, and reducing the displacement of the coil spring 312 in the insulating layer 311.

[0033] See also Figure 2-Figure 3 In some embodiments of the present application, the winding reel 20 also includes a conductive column 24, which is located inside the winding column 21 and connected to the winding column 21. The first end of the conductive wire body 313 is electrically connected to the power plug 32, and the second end of the conductive wire body 313 is electrically connected to the conductive column 24.

[0034] It can be understood that the winding post 21 has a mounting cavity and a mounting rod, and the conductive post 24 is located in the mounting cavity of the winding post 21 and is sleeved on the mounting rod, so that the winding post 21 can provide a mounting space and a stable installation foundation for the conductive post 24. At the same time, the present embodiment arranges the conductive post 24 through the mounting cavity space of the winding post 21, so that the space in the charging device 1 can be more fully utilized, which is conducive to reducing the volume of the charging device 1. The conductive post 24 can rotate relative to the housing 10 with the winding post 21, and an opening connected to the winding space 22 is opened on the side of the winding disk 20. The second end of the conductive wire body 313 passes through the winding space 22 from the winding space 22 through the opening and is electrically connected to the conductive post 24 located inside the winding post 21.

[0035] The charging assembly 30 further includes an output unit 33, at least part of which is located in the accommodating cavity 11 and connected to the housing 10, and the output unit 33 includes a conductive sheet 331, which is in conductive contact with the conductive column 24. Specifically, the portion of the output unit 33 electrically connected to the conductive column 24 is located in the accommodating cavity 11, so that the output unit 33 can stably supply power, and when the conductive column 24 rotates with the winding column 21, the conductive sheet 331 can always be in contact with the conductive column 24 and conduct electricity. Exemplarily, the conductive sheet 331 can be an elastic member, so that the conductive sheet 331 can abut against the conductive column 24, that is, there is a force between the conductive sheet 331 and the conductive column 24, so that the conductive sheet 331 can still stably be in conductive contact with the conductive column 24 when the conductive column 24 rotates.

[0036] It should be noted that the output part 33 can be used to connect an external power source or an electronic device. For example, the output part 33 includes a first plug. When the charging device 1 charges an electronic device such as a mobile phone or a computer, the power plug 32 is connected to the mobile phone or the computer, and the first plug is connected to a socket or other power source to charge the mobile phone or the computer. For another example, the charging device 1 is arranged on an electrical device, such as a television, a refrigerator, a washing machine, etc. The output part 33 includes an electrical connection line, which is directly electrically connected to the electrical device, and the power plug 32 is connected to a socket or other power source to charge the electrical device.

[0037] For further information, please see Figure 2-Figure 3 In some embodiments of the present application, the conductive column 24 includes a column 241 and a conductive trace 242 , the axis of the column 241 coincides with the axis of the winding column 21 , and the conductive trace 242 is arranged around the outer side of the column 241 .

[0038] Specifically, the entire conductive column 24 can rotate relative to the housing 10 along with the winding column 21, and the entire conductive column 24 rotates around the axis of the column 21, and the conductive trace 242 located outside the column 241 also rotates therewith. On the outside of the column 241, the conductive trace 242 wraps around the column multiple times, and the multiple turns of the conductive trace 242 are arranged in a direction parallel to the axis of the column 241.

[0039] A plurality of conductive contacts 332 are provided on the conductive sheet 331, and the plurality of conductive contacts 332 are arranged in a direction parallel to the axis of the column 241, wherein each conductive contact 332 can be in conductive contact with a circle of conductive traces 242. When the conductive column 24 as a whole rotates, the conductive traces 242 and the conductive contacts 332 are always in a state of conductive contact, thereby ensuring stable conduction between the output portion 33 and the conductive wire body 313.

[0040] See also Figure 3-Figure 4 In some embodiments of the present application, the charging device 1 further includes a locking assembly 40 , the locking assembly 40 includes a first locking component 41 and a second locking component 42 , the first locking component 41 is disposed on the housing 10 , and the second locking component 42 is disposed on the winding reel 20 .

[0041] Among them, the first locking component 41 is rotationally connected to the shell 10, and the first locking component 41 is slidingly connected to the winding reel 20. When the first locking component 41 slides relatively with the winding reel 20, the first locking component 41 can also swing relative to the shell 10. This embodiment does not limit the specific swing angle of the first locking component 41 relative to the shell 10.

[0042] Specifically, when the wire reel 20 rotates, the wire reel 20 drives the second locking member 42 to rotate, and the wire reel 20 and the first locking member 41 slide relative to each other. The rotation trajectory of the second locking member 42 has a locking position and an unlocking position arranged in sequence. When the second locking member 42 rotates to the locking position, the first locking member 41 can rotate with the housing 10, that is, the first locking member 41 swings relative to the housing 10. At this time, the first locking member 41 is locked with the second locking member 42. When the second locking member 42 rotates to the unlocked position, the first locking member 41 can rotate with the housing 10 again, that is, the first locking member 41 swings relative to the housing 10 again, and the first locking member 41 and the second locking member 42 are unlocked to unlock and rotate the cable reel 20 and the housing 10, and the charging cable 31 can be pulled out of the winding space 22. Specifically, the specific position of the locking position can be designed according to the use requirements, so that the charging cable 31 and the housing 10 can be relatively fixed at the required position.

[0043] For further information, see Figure 4-Figure 6 In some embodiments of the present application, the first locking member 41 includes a hooking portion 411, and the second locking member 42 is provided with a hooking groove 421. When the second locking member 42 is in the locked position, the hooking portion 411 is hooked into the hooking groove 421 to achieve the locking of the winding reel 20 and the shell 10; when the second locking member 42 is in the unlocked position, the hooking portion 411 is separated from the hooking groove 421 to achieve the unlocking and rotation of the winding reel 20 and the shell 10. It can be understood that when the second locking member 42 is in the locked position, the hooking portion 411 is hooked into the hooking groove 421. At this time, the conductive wire body 313 and the coil spring 312 cannot be pulled out from the winding space 22. When the second locking member 42 slides from the locked position to the unlocked position, the hooking portion 411 can be separated from the hooking groove 421. At this time, the conductive wire body 313 is retracted into the winding space 22 under the elastic force of the coil spring 312. The locking and unlocking of the hooking portion 411 and the hooking groove 421 are convenient and quick, making the locking assembly 40 more convenient to use.

[0044] For further information, see Figure 4-Figure 6 In some embodiments of the present application, a guide slot 23 is provided on one side of the winding reel 20 facing the first locking member 41. The guide slot 23 is arranged around the axis of the winding post 21. The rotation of the winding reel 20 drives the guide slot 23 to rotate, so that the first locking member 41 slides in the guide slot 23, and the first locking member 41 can rotate relative to the housing 10. The second locking member 42 is arranged in the guide slot 23, and the hooking slot 421 is connected to the guide slot 23, so that the hooking portion 411 can switch and slide between the hooking slot 421 and the guide slot 23.

[0045] Among them, when the second locking member 42 moves from the locked position to the unlocked position, the hooking part 411 moves from the hooking groove 421 to the guide groove 23, and the hooking part 411 can slide along the guide groove 23. The guide groove 23 can provide guidance and limitation for the sliding of the hooking part 411 to prevent the hooking part 411 from shifting or misaligning when sliding.

[0046] Specifically, Figure 5 As shown, the guide groove 23 is preferably set to be annular. Taking the elastic force of the coil spring 312 extending in the counterclockwise direction as an example, the charging cable 31 is pulled out from the winding space 22 in the clockwise direction. At this time, the hook groove 421 is located on the right side of the second locking member 42. The connection between the hook groove 421 and the hooking part 411 can prevent the coil spring 312 from rotating in the counterclockwise direction.

[0047] See also Figure 5-Figure 6In some embodiments of the present application, the locking assembly 40 further includes a separator 43, which is disposed in the guide slot 23 and separates the guide slot 23 into a coaxial first slot 231 and a second slot 232, and the hooking portion 411 can slide in the first slot 231 and the second slot 232. The separator 43 has a first notch 431, and the second locking member 42 is located at the first notch 431. The two ends of the second locking member 42 and the two ends of the separator 43 jointly form a first channel 432 and a second channel 433, that is, the second locking member 42 separates the first notch 431 into a first channel 432 and a second channel 433, the first channel 432 communicates with the first slot 231 and the second slot 232, and the second channel 433 also communicates with the first slot 231 and the second slot 232. The hook groove 421 may be located in the first channel 432 or the second channel 433 , and the hooking portion 411 may be switched between the first sliding groove 231 and the second sliding groove 232 through the first channel 432 or the second channel 433 .

[0048] A first protrusion 233 is arranged on the side wall of the first slide groove 231, and the first protrusion 233 is arranged to protrude toward the position of the first channel 432. The first protrusion 233 can change the movement trajectory of the hooking part 411 in the first slide groove 231. A second protrusion 234 is arranged on the side wall of the second slide groove 232, and the second protrusion 234 is arranged to protrude toward the position of the second channel 433. The second protrusion 234 can change the movement trajectory of the hooking part 411 in the second slide groove 232.

[0049] It should be noted that, taking the example that the first slide groove 231 is on the outer circle of the second slide groove 232, the hook groove 421 is located in the first channel 432, and the elastic force of the coil spring 312 extends in the counterclockwise direction, when the charging cable 31 is stored in the winding space 22, the second locking member 42 is rotated to the locked position, and the hooking portion 411 is hooked in the hook groove 421; when a force toward the outside of the accommodating chamber 11 is applied to the charging cable 31, the force overcomes the elastic force of the coil spring 312 and drives the winding reel 20 to rotate in the clockwise direction, at which time the hook groove 421 is separated from the hooking portion 411, and the hooking portion 411 slides relative to the winding reel 20, the hooking portion 411 is separated from the hook groove 421 and enters the first channel 432, and since the first protrusion 233 is protruding in the direction of the first channel 432, the hooking portion 411 will enter the second slide groove 232 under the obstruction of the first protrusion 233 and slide in the second slide groove 232 Similarly, the second protrusion 234 in the second slide groove 232 will block the hooking portion 411, thereby changing the movement trajectory of the hooking portion 411, so that the hooking portion 411 passes from the second slide groove 232 to the first slide groove 231 via the second channel 433, and the first protrusion 233 in the first slide groove 231 will also block the hooking portion 411, thereby changing the movement trajectory of the hooking portion 411, so that the hooking portion 411 passes from the first slide groove 231 to the second slide groove 232 via the first channel 432. Until the charging cable 31 loses the external force, when the hooking portion 411 slides in the first slide groove 231 to the position of the second protrusion 234, the coil spring 312 drives the winding reel 20 to make the hooking portion 411 slide in the opposite direction and fall into the hooking groove 421 located in the first channel 432, so that the hooking groove 421 and the hooking portion 411 are locked again to prevent the charging cable 31 from being retracted into the winding space 22 during use. If the charging cable 31 needs to be retracted into the winding space 22 , the charging cable 31 can be pulled again to separate the hooking portion 411 from the hooking groove 421 , that is, the winding drum 20 and the housing 10 are unlocked, so that the charging cable 31 can be retracted into the winding drum 20 under the elastic force of the coil spring 312 .

[0050] For further information, see Figure 5 In some embodiments, the partition 43 has a first free end 434 and a second free end 435, and a first notch 431 is defined between the first free end 434 and the second free end 435. The first free end 434 and the second free end 435 are both provided with a guide slope 426, and the guide slope 426 is used to guide the sliding of the hooking portion 411, so as to facilitate the hooking portion 411 to switch and slide between the first slide groove 231 and the second slide groove 232.

[0051] Exemplarily, a first channel 432 is formed between the first free end 434 and one end of the second locking member 42, and the guide slope 426 on the first free end 434 is inclined toward the direction of the second slide groove 232; a second channel 433 is formed between the second free end 435 and the other end of the second locking member 42, and the guide slope 426 on the second free end 435 is inclined toward the direction of the first slide groove 231.

[0052] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and cannot be understood as limitations on this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0053] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A charging device, characterized in that: include: A housing having a receiving cavity and a wire outlet communicating with the receiving cavity; A winding drum, located in the accommodating cavity, the winding drum comprises a winding post, and the winding post is rotatably connected to the housing; A charging assembly includes a charging cable located in the accommodating cavity and an electrical plug located outside the shell, wherein a first end of the charging cable passes through the cable outlet and is connected to the electrical plug, and a second end of the charging cable is connected to the winding post, wherein the charging cable includes an insulating layer, a coil spring and a conductive wire body, wherein the conductive wire body and the coil spring are both located in the insulating layer, and the conductive wire body and the coil spring are both wound along the circumference of the winding post.

2. The charging device according to claim 1, characterized in that: The winding reel further includes a conductive column, which is located inside the winding column and connected to the winding column, a first end of the conductive wire is electrically connected to the power plug, and a second end of the conductive wire is electrically connected to the conductive column, and the charging assembly further includes: An output part, at least part of which is located in the accommodating cavity and connected to the shell, and the output part includes a conductive sheet, and the conductive sheet is in conductive contact with the conductive column.

3. The charging device according to claim 2, characterized in that: The conductive column comprises a column body and a conductive trace, the axis of the column body coincides with the axis of the winding column, and the conductive trace is arranged around the outer side of the column body; A plurality of conductive contacts are disposed on the conductive sheet, the plurality of conductive contacts are arranged in a direction parallel to the axis of the column, and the conductive contacts are in conductive contact with the conductive traces.

4. The charging device according to claim 1, characterized in that: The insulating layer and the conductive wire body are both bonded to the coil spring. The coil spring is provided with a plurality of fixing holes, and the plurality of fixing holes are arranged at intervals.

5. The charging device according to claim 1, characterized in that: The charging device also includes: A locking assembly, comprising a first locking member and a second locking member, wherein the first locking member is disposed on the housing, and the second locking member is disposed on the winding reel; Among them, the first locking member is rotationally connected to the shell, and the first locking member is slidably connected to the winding reel, the first locking member can slide relative to the winding reel around the axial center line of the winding column, and the rotation trajectory of the second locking member has a locking position and an unlocking position arranged in sequence, when the second locking member is located at the locking position, the first locking member is locked with the second locking member to achieve the locking of the winding reel with the shell; when the second locking member is located at the unlocking position, the first locking member is unlocked with the second locking member to achieve the unlocking and rotation of the winding reel and the shell.

6. The charging device according to claim 5, characterized in that: The first locking member includes a hooking portion, and the second locking member is provided with a hooking groove. When the second locking member is located at the locking position, the hooking portion is hooked in the hooking groove to achieve locking of the winding drum and the housing; When the second locking member is located at the unlocking position, the hooking portion is separated from the hooking groove, so that the winding drum is unlocked and rotated from the housing.

7. The charging device according to claim 6, characterized in that: A guide slot is provided on one side of the winding drum facing the first locking member, the guide slot is arranged around the axis of the winding column, the second locking member is arranged in the guide slot, and the hook slot is connected to the guide slot; Wherein, when the second locking member moves from the locking position to the unlocking position, the hooking portion moves from the hooking groove to the guiding groove, and the hooking portion can slide along the guiding groove.

8. The charging device according to claim 7, characterized in that: The locking assembly also includes: a separator, which is arranged in the guide slot and divides the guide slot into a coaxial first slot and a second slot, the separator having a first notch, the second locking member being located at the first notch, the end of the second locking member and the end of the separator forming a first channel and a second channel together, the first channel and the second channel both being connected to the first slot and the second slot, and the hooking groove being located in the first channel or the second channel; A first protrusion is provided on the side wall of the first slide groove, the first protrusion is protruded toward the position of the first channel, and the first protrusion is used to change the movement trajectory of the hooking part in the first slide groove. A second protrusion is provided on the side wall of the second slide groove, the second protrusion is protruded toward the position of the second channel, and the second protrusion is used to change the movement trajectory of the hooking part in the second slide groove.

9. The charging device according to claim 1, characterized in that: The shell comprises a base and a cover body, wherein the base and the cover body are combined to form the accommodating cavity, and the cover body is detachably connected to the base.

10. The charging device according to claim 9, characterized in that: A positioning column is arranged on the base, and the winding column is sleeved on the positioning column and is rotatably connected with the positioning column.

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